GLOBE CONTROL VALVES - · PDF fileKey Valve Technologies Ltd. 3. GLOBE CONTROL VALVES *...

2 Key Valve Technologies Ltd.

GLOBE CONTROL VALVES

* Specification are subject to change without notice

Key Valve Technologies Limited (KVT) Cage Trim was developed not only to prevent cavitation but also

to attenuate noise generated by high pressure drop gas and steam applications. Conventional valves

usually have one vena-contracta and if critical pressure drop is required, sonic velocity is generated.

Turbulence and pressure changes in the downstream piping can become forcing functions and if the

natural frequency of the system is close to the forcing function, resonance can occur. Not only the system

will be noisy, but there is a risk that stresses produced by resonance could cause fatigue.

The Cage Trim controls the gas/steam velocity to sub-sonic values through energy restrictions at each

orifice stage. As in liquid applications, flow enters the trim from under the seats and into body bowl. This

unique trim is designed so that gas/steam will not reach sonic velocity at any stage. Expansion of the gas/

steam is allowed to occur immediately after the major restriction in each stage. Trim and valve size will

depend on the number of orifice stages of pressure drop and the size and number of holes required to pass

the flow. In addition, by using a large number of small restrictions, the energy is to be dissipated sequently

and then provide as for a quiet valve.

Advantages

Prevents cavitation and flashing

Prevents aerated liquids from corroding/eroding trim and valve parts

Prevents mechanical vibration

Prevents sonic velocity flow occurring within the valve

Provides high reliability and maintainability

Recommended Applications

Turbine Bypass

Choke Valves

Minimum Pump Flow Recirculation

Anti Surge

Boiler Feedwater

Attemperator Spray Valves

Dump Valves

KVT CONTROL VALVES - Cage Trim

Key Valve Technologies Ltd. 3



Steam Conditioning Valves 28

Dimension 30

Actuators

Diaphragm Actuator 31

Cylinder Actuator 33

Electric Actuator 37

Actuator Piping 38

Engineering Data 40

Product Coding System 48

The Quality KVT is certified to ISO 9001, ISO 14001 and CE-PED

Our final quality goal is to offer the products exceed the expectations of our valuable customers.

ISO 9001:2008

ISO 14001:2004

CE-PED TUV - CE0035 (module H)

Main Design Standards

ASME B16.34 Valves-Flanged, Threaded & Welding End

ANSI FCI 70-2 Control Valve Seat Leakage

ASME B16.25 Butt Welding Ends

ASME B16.5 Pipe Flanges & Flange Fittings

NACE MR-01-75 Valve Materials (option)

BS1560 Circular Flanges for Pipes, Valves & Fittings

BS4504 Circular Flanges for Pipes, Valves & Fittings

ISA S75.01 Flow Equations for Sizing Control Valves

ISA S75.08 Face-to-Face Dimensions.

Contents

Products 4

Globe Control Valves

Structure and Parts 6

Trim Styles

PT-I 11

PT-II 12

PT-III 15

PT-S 17

HSC-I 18

HSC-II 19

HSC-III 20

HEST-I 21

HEST-II 24

HEST-III 25

HEST-IV 26

Trim Option 27




PRODUCTS

Globe Control Valves

SERIES HF600 (Hi-Fluidic Upto 600LBS)

Ratings

ANSI Class 150 to 600LBS

PN 10 to 100

Valve Sizes

DN15 to DN900

1/2” to 36”

Body Type:

Globe pattern

Angle pattern

Forged Straight Through and Angle

Z-Type (Offset Globe) Pattern

End Connection:

Flanged (Standard)

Butt weld

Socket weld

Screwed

Trim Options:

HSC Series

PT Series

HEST Series

Blowdown Control Valves

SERIES HF900 (Hi-Fluidic 900LBS and Above)

Ratings

ANSI Class 900 to 4500LBS

PN 150 to 640

Valve Sizes

DN15 to DN750

1/2” to 30”

Angle Type

ABD

SBD

YBD

ABD (Angle Blowdown):

DN25 to DN80 (1” to 3”)

ANSI 300 to 2500LBS

SBD (Straight Blowdown):

DN25 to DN50 (1” to 2”)

ANSI 300 to 1500LBS

TBD (Tandem Blowdown):

DN25 to DN80 (1” to 3”)

ANSI 300 to 1500LBS

PBD (Gate type Blowdown):

DN20 to DN200 (3/4” to 8”)

ANSI 300 to 3500LBS

YBD (Y-Globe Blowdown):

DN25 to DN80 (1” to 3”)

ANSI 300 to 2500LBS

Globe Type




Steam Conditioning Applications Steam Pressure (Reducing) and Temperature (Desuperheating) Applications

Actuators

P200 Series Piston Actuator

3-Way Globe Valves

Body Type:

KMT - Mixing Type

KDT - Divert Type

End Connection:

Flanged (Standard)

Butt weld

Socket weld

Screwed

Capacity:

DN40 to DN400 (1.5” to 16”)

ANSI 150 to 1500LBS

TYPE :

SAMO

Spring Assist Multiple Orifice Desuperheater

VAD

Variable Nozzle Spray Desuperheater (Single and Multiple)

MNCD

Multi Nozzle Control Desuperheater

Integrate Spray Water Control Valve

PTCV

Steam Conditioning Valve Steam Conditioning Valves

Pneumatic Type:

Diaphragm Actuators

● Economical Design

● High stability & Low Hysteresis

● Multi Spring Type - P500 Series

Cylinder (Piston) Actuators

● High Stroke Control & High Force

● Spring Return Type - P200DA/RA

● Double Acting Type - P200DB

● Tandem Type - P200TD

Electric Type:

Motor Operated Actuators

Hydraulic Actuators

P500 Series Multi-Spring Type Diaphragm Actuator

P700 Series Single-Spring Type

Diaphragm Actuator

Electric Actuators




STRUCTURE

Quick Change Trim Design

All KVT Quick Change Trim proves the most convenient means for

inspection and replacement of valve trim. The body need not be

removed from the line. No special tools are required. There is no

screwed in or welded cage. It is held in place by the bonnet which is

attached to the valve body by studs and nuts.

Cage Guiding

With few exceptions, KVT trims are mostly cage guided. Cage guiding,

is a very durable design that provides exceptional long wear life. It

provides maximum support and guiding to the plug, thus minimizing trim

wear in the most severe of services.

Cage Outside Diameter Fixed

The inside diameter depends on reduced trim. Cage sealing gasket

load is applied very close to the body to bonnet seal and nearly in line

with the resisting gasket. The bonnet is extremely rigid and does not

bend, providing an excellent seal between body and bonnet.

Gasket are Fully Trapped with Controlled Compression

Minimum deviation from optimum gasket loading is obtained. Bolted

load provides necessary gasket stress to seal upstream fluid from

downstream. Also, to seal down-stream fluid from atmosphere.

Unbalance or seating forces cannot over compress gaskets as all

preload is absorbed by metal-to-metal contact between cage and body

web and cage and bonnet.

Vibration Forces Minimized

Close clearances are maintained between plug and cage and between

cage and body web core. The plug is well supported in the cage, thus

radial forces generated by the fluid are controlled.

Typical Valve Construction




Valve Stem and Plug Connection

Valve stem is fastened to plug by a tapered connection. Threads do not

absorb compressive load of fluid and operator. A precision taper on both

stem and plug threads wedge them together when assembled.

Load is taken on the tapered surface. Protection against unscrewing is

provided by pinning the plug an stem together.

Trim Readily changeable

The following easy steps are required:

. Disconnect stem from actuator junction

. Remove bonnet nuts

. Lift off actuator and bonnet

. Lift out stem and plug

. Remove bonnet gasket, cage and seat with trim gaskets

. Repair or replace trim items as required and reassemble

Actuator

Bonnet

Trim Gasket

Bonnet Gasket

Seatring & Gasket

Body

Cage

Plug

Yoke




PT-I Single Seat Plug Throttling

PT-II Port Throttling (Unbalanced / Balanced)

HSC-I Micro High Step Cascade

PT-III Plug Throttling (Unbalanced / Balanced)

TRIM STYLE COMPARISON (Trim Types)

HSC-II High Step Super Cascade

HSC-III High Step Cascade

HEST-I Single Cage

HEST-II Multi Cage - for Cavitation & Noise

HEST-III Multi Cage - for high Δp




HEST-Ⅳ Labyrinth Flow Paths

Inner Pilot Trim For PT-II / HEST I, II, III

Soft Seat For PT-II / PT-S / HEST I

Special Plug & Cage for 3-way Valve

PT-S Micro Flow Control

HEST-II/7 (Multistage)

HEST-Variable Trim

Lower Trim : Hest-IV Labyrinth Flow Paths Upper Trim : Hest-II Multistage of Cylindrical Orifice

HEST-IV Trim (Labyrinth Flow Paths)




No

SPEC

STYLE TRIM

SIZES

MAXIUM Cv

RANGE

RANGE

ABILITY

Flowing

Form

WEB

SEAL

LEAK

CLASS

CHARAC-

TERISTIC

BALANCE

OF TRIM REMARK

TYPICAL

APPLICATION

1 PT-I 8mm to 300mm

1.4 to 1,460

25:1 Under

the Web Quick

Change IV or V

Linear , Eq. %, Mod. Eq. %

Unbalanced Low Pressure

Service

General Service, Heater Drain. , Cool-

ing Water, Steam PRV

2 PT-II 50mm to 750mm

40 to 9,930

Varies 25:1 Average

Over /Under

Quick Change

IV or V Linear, Eq. %, Mod. Eq. %

Unbalanced / Balanced

Low Pressure Service

General Service, Level, Feedwater

Control

3 PT-III 50mm to 300mm

38 to 944 Varies 100:1

Average Over /Under

Quick Change

IV or V Linear,

Mod. Eq. % Unbalanced /

Balanced High Range-

ability Level Control

4 PT-S #0 to #9 0.001 to

3.2 Varies 100:1

Average Over

the Web Quick

Change V Mod. Eq. % Unbalanced

Very Small Flow & Flash-

ing

Drain, Vent, Seal Steam

5 HSC-I #0 to #13 0.24 to 9.9 100:1 Over /Under

Quick Change

IV or V Unique Unbalanced Low-Flow High

∆P Erosion Near Seat

DesuperHeater Cool-ing Water Service

Steam PRV

Sootblower Thermal Drain

Fuel Oil Control

Reheat and Super-heat Spray Fluid

6 HSC-II 20mm to 80mm

2.5 to 23 100:1 Under

the Web Quick

Change IV or V Unique Unbalanced

Cavitating Condition Upto

600LBS

7 HSC-III 25mm to 150mm

16.2 to 406

100:1 Under

the Web Quick

Change IV or V Unique

Unb. 50-80mm Bal. 80-150mm

High Range. Erosion Pro. Near Seat

8 HEST-I 25mm to 750mm

38 to 8,900

Varies 40:1 Average

Over /Under

Quick Change

IV or V Linear, Eq. %, Mod. Eq. %

Unbalanced / Balanced

Noise, Light Caviting. Flash-

ing

Steam PRV Steam Dump Cond. Recirc.

Feedwater Reg.

9 HEST-II 50mm to 700mm

5.8 to 1,173

Per Application

Over /Under

Quick Change

Per Application

Linear, Eq.% Unbalanced /

Balanced

Noise and Cavitating Condition

Severe Service, Feedpump Recirc. Feedwater Startup

Bypass

10 HEST-III 50mm to 600mm

6 to 1,750

Per Application

Over /Under

Quick Change

IV or V Linear,

Mod. Eq.% Unbalanced /

Balanced

Noise and Cavitating Condition

Severe Service, Feedwater Reg. Level Control Cond. Recir-

culation

11 HEST-Ⅳ 50mm to 600mm

5.4 to 1,150

Per Application

Over /Under

Quick Change

IV or V Linear,

Mod. Eq.% Unbalanced /

Balanced

Velocity & Cavitating

Condition

Severe Service, Feedpump Recirc. Feedwater Startup

Bypass

12

PT-II (Inner

Pilot Trim)

100mm to 400mm

75 to 2,750

Varies 25:1 Average

Over the Web

Quick Change

V Linear, Eq. %, Mod. Eq. %

Balanced Tight Shut off

and High Pres-sure

General Service, Isolation Valve

Stream to Condenser

13 PT-II

(Soft Seat) 100mm to 400mm

38 to 1,900

Varies 25:1 Average

Over /Under

Quick Change

VI Linear, Eq. %, Mod. Eq. %

Balanced Tight Shut off

and High Pres-sure

Block Valve Gas Regulation

TRIM STYLE COMPARISON

Trim Types per Control Rangeability




TRIM Construction

CONTOURED PLUG

Specification ■ Trim Size : 8mm to 300mm

■ Cv Range : 1.4 ~ 1,460

■ Flow Direction : Under the Web

■ Leakage Class : Ⅳ/Ⅴ

■ Rangeability : 25 : 1

■ Features : ON / OFF or Modulating Control

PLUG TYPES

CAGE TYPE

■ MODIFIED PARABOLIC TRIMS

Valve Size TRIM SIZE (mm)

25 32 40 50 65 80 100 125 150 200 250 300

DN20 & DN25

15

DN40 17.1 22 30

DN50 17.4 22.8 33 50

DN65 17.4 23.2 34 55 70

DN80 17.4 23.2 35 57 77 110 NOT AVAILABLE

DN100 17.4 23.2 35 58 80 121 190

DN125 23.2 35 58 81 125 209 290

DN150 35 58 81 128 217 318 380

DN200 58 81 128 220 330 418 740

DN250 128 220 336 433 814 1060

DN300 SPECIAL DESIGN REQUIRED 128 220 336 440 843 1168 1460

DN350 220 336 440 857 1208 1606

DN400 336 440 857 1230 1665

Full Travel (mm)

25 25 25 25 32 50 50 50 50 65 80 80

PT- I

Single Seat Plug Throttling (Unbalanced)

* TRIMS OUTSIDE BLUE AREAS ARE CONSIDERED SPECIAL. ONLY TRIMS UP 40mm SIZE ARE CONSIDERED STOCK ITEMS. SUBTRACT 25% FROM ABOVE Cv. FOR CLASS 4500 VALVES.





■ Cv Range : 40 ~ 9,930

■ Flow Direction : Over / Under the Web


■ Rangeability : Varies 25 : 1 Average

■ Features : Level Control, Feedwater Control

TRIM Construction

FULL SIZE TRIM IN CLASS 150 - 600

VALVE SIZE DN50 DN80 DN100 DN150 DN200

TRIM SIZE (mm) 50 80 100 150 200

613

Cv

44 96 161 357 499

34 80 132 292 376

27 67 110 241 297

175

MIN. CONTR. Cv 1.1 1.5 2 4.2 6.4

STEM TRAVEL (mm) 25 50 50 65 80

REDUCED SIZE TRIM IN CLASS 150 - 600

VALVE SIZE DN80 DN100 DN150 DN200

TRIM SIZE (mm) 65 50 80 65 100 80 150 100

65 52 110 68 185 114 405 188

Cv 54 39 91 55 150 93 328 152

44 31 75 45 123 76 269 124

193

STEM TRAVEL (mm) 40 25 50 40 50 50 65 50

PT-II

Linear Type (Unbalanced / Balanced)

* Sizes are larger than DN200(8”) consult to KVT Tech.




FULL SIZE TRIM IN CLASS 900 - 2500 VALVE BODY SIZES TO DN200 AND CLASS 150 - 2500 IN BODY SIZES DN250 AND DN300

VALVE SIZE DN50 DN65 DN65 DN80 DN100 DN150 DN200 DN250 DN250 DN300 DN300

TRIM SIZE (mm) 50 65 65 80 10 150 200 250 250 300 300

587 1084 1159 1386 1565

Cv

548 1011 1071 1302 1447

43 46 56 92 166 342 485 895 995 1113 1343

36 42 49 77 134 327 462 852 937 1068 1266

34 35 47 78 136 284 370 682 788 830 1064

30 33 43 68 117 275 359 663 759 811 1025

27 28 39 66 113 237 294 542 639 652 863

25 27 37 60 101 232 289 532 623 642 841

173

171

MIN. CONTR. Cv 1.1 1.1 1.1 1.5 2.0 4.2 6.4 9.5 9.5 10.8 10.8

STEM TRAVEL (mm) 25 25 40 50 50 65 80 80 100 80 100

REDUCED SIZE TRIM IN CLASS 900 - 2500 VALVE BODY SIZES TO DN200 AND CLASS 150 - 2500 IN BODY SIZES DN250 AND DN300

VALVE SIZE DN65 DN80 DN100 DN150 DN200 DN250 DN300

TRIM SIZE (mm) 50 65 50 80 65 100 80 150 100 200 150 250 250 200

638 1193 1276 651

Cv

622 1138 1210 642

48 61 50 107 66 171 104 376 174 528 383 983 1094 535

43 58 47 97 63 169 104 365 172 519 380 962 1051 530

37 51 38 87 53 142 87 312 144 404 316 749 866 407

35 48 30 72 43 119 73 260 120 400 314 736 844 405

30 43 30 72 43 119 73 260 120 322 262 595 702 323

29 41 30 69 42 118 73 258 119 319 261 588 690 322

190 191

188 190

STEM TRAVEL (mm)

25 40 25 50 40 50 50 65 50 80 65 80 100 80

NOTE: The only options available are those whose where a Cv value is indicated.

Unshaded area is standard full capacity (Class 900-1500 sizes to DN200 and Class 150 - 1500 in DN250 and DN300)

Shaded area is trim capacity in Class 2500 valve

PT-II

Linear Type (Unbalanced / Balanced)







TRIM SIZE (mm) 50 80 100 150 200

477

Cv 137 295 414

35 88 116 249 334

26 73 87 184

MIN. CONTR. Cv 1.1 1.5 2.0 4.2 6.4

STEM TRAVEL (mm) 25 50 50 65 80

PT-II

Equal Percentage Type (Unbalanced / Balanced)



TRIM SIZE (mm) 50 65 65 80 100 150 200 250 250 300 300

722 812

Cv

699 794

578 867 636 1049

566 828 628 1011

422 496 772 550 920

407 792 744 552 894

151 264 359 406 656 439 771

126 257 350 402 638 436 756

31 32 46 82 126 217 284 310 518 333 602

28 31 42 71 110 213 280 309 510 332 594

22 23 36 65 92 156

21 22 34 59 86 155

MIN. CONTR. Cv 1.1 1.1 1.1 1.5 2.0 4.2 6.4 9.5 9.5 10.8 10.8

STEM TRAVEL (mm)

25 25 40 50 50 65 80 80 100 80 100








REDUCED SIZE TRIM IN CLASS 150 - 2500

VALVE SIZE DN65 DN80 DN100 DN150 DN200 DN250 DN300

TRIM SIZE (mm)

50 65 50 80 65 100 80 150 100 200 150 250 250 200

Cv

693

682

580 937

578 910

150 330 160 433 320 482 790 437

146 324 152 428 312 479 773 434

38 57 38 94 68 125 120 263 126 340 252 368 619 342

35 53 37 90 65 125 120 258 126 337 246 366 611 340

27 43 27 82 44 90 82 187 90 188

26 41 27 79 45 88 82 185 90 187

STEM TRAVEL (mm)

25 40 25 50 40 50 50 65 50 80 65 80 100 80




PT-II

Equal Percentage Type (Unbalanced / Balanced)


■ Cv Range : 38 ~ 944




■ Features : High Rangeability, Level Control

TRIM Construction

PT-III

Plug Throttling (Unbalanced / Balanced) - Mod. Equal Percentage







TRIM SIZE (mm) 50 80 100 150 200

Cv

429

123 265 372

31 79 104 224 300

23 66 78 165

MIN. CONTR. Cv 1.1 1.5 2.0 4.2 6.4

STEM TRAVEL (mm) 25 50 50 65 80

PT-III

Plug Throttling (Unbalanced / Balanced) - Mod. Equal Percentage



TRIM SIZE (mm) 50 65 65 80 100 150 200 250 250 300 300

650 730

Cv

629 714

520 780 572 944

509 745 565 909

380 445 695 485 828

366 440 669 489 804

136 237 323 365 590 395 694

113 231 315 362 574 392 680

28 29 41 74 113 195 255 279 466 300 542

25 28 38 64 99 191 252 278 459 299 534

20 21 32 58 83 140

19 20 30 53 77 139

MIN. CONTR. Cv 1.1 1.1 1.1 1.5 2.0 4.2 6.4 9.5 9.5 10.3 10.8

STEM TRAVEL (mm)

25 25 40 50 50 65 80 80 100 80 100







Specification ■ Trim Size : #0 to #9

■ Cv Range : 0.001 ~ 3.2

■ Flow Direction : Over the Web

■ Leakage Class : Ⅴ


■ Features : Very Small Flow & Flashing

PT-S

TRIM Construction

SIZE #0 #1 #2 #3 #4

Cv 0.001 0.0025 0.01 0.016 0.04

SIZE #5 #6 #7 #8 #9

Cv 0.1 0.25 0.63 1.26 3.2

Application

■ Drain, Vent

■ Seal Steam Applications

Plug Throttling (Unbalanced) - Micro Flow Control




HSC-I

Micro High Step Cascade

Micro High Step Cascade Plug Types

Specification ■ Trim Size : #0 ~ #13

■ Cv Range : 0.24 ~ 9.9




■ Features : for High Pressure Drop

and Anti-Cavitation

TRIM Construction

SIZE #0 #1 #2 #3 #4 #5 #6

Cv 0.24 0.31 0.37 0.48 0.67 0.86 1.30

SIZE #7 #8 #9 #10 #11 #12 #13

Cv 1.67 2.2 3.0 4.3 6.1 8.2 9.9

■ Numeric Sizes





■ Cv Range : 2.5 ~ 23





and Anti-Cavitation

HSC-II

High Step Super Cascade

VALVE TRIM SIZE (mm)

SIZE 20 22 25 40 50 80

DN25 2.5 3.1 3.7

DN40 5.6

DN50 6.2

DN65 11.5

DN80 12.0

DN100 12.5 23

FULL TRAVEL (mm) 25 25 25 25 40 50

SUPER CASCADE PLUG TYPES

TRIM Construction

Super Cascade




HSC-III

High Step Cascade


■ Cv Range : 16.2 ~ 406





and Anti-Cavitation

TRIM Construction

Cascade Trim

VALVE TRIM SIZE (mm)

SIZE 25 40 50 65 80 100 150

DN40 16.2 23.1

DN50 16.8 25.4 36.4

DN65 26.4 42.3 66.8

DN80 43.9 73.5 112

DN100 75.9 123 177

DN150 130 200 406

DN200 204 446

DN300 464

FULL TRAVEL (mm) 40 40 40 50 50 65 80

CASCADE PLUG TYPES




HEST-I

Trim of Equal Percentage Characteristic * Consult Factory for Equal Percentage Characteristic Cv

■ KGC series valves - HEST-I Trim Design Cv : Linear Characteristic

VALVE BODY STYLE

APPLICATION TYPE OF THE

TRIM

VALVE SIZE TRIM SIZE CLASS

Cv MINIMUM CONTROLLABLE

Cv

STEM TRAVEL

DN Inch mm 6 ARRAY 5 ARRAY 4 ARRAY 3 ARRAY mm

HF600

Full Size

50 2 50

150-600

51 46 38 1.1 25

80 3 80 109 97 1.5 50

100 4 100 188 175 157 131 2.0 50

150 6 150 410 379 336 278 4.2 65

200 8 200 684 626 549 449 6.4 80

Reduced

80 3 65 78 71 60 1.1 40

50 64 55 44 1.1 25

100 4 80 129 112 1.5 50

65 82 74 62 1.1 40

150 6 100 227 208 183 150 2.0 50

80 136 117 1.5 50

200 8 150 482 440 385 317 4.2 65

100 233 213 186 152 2.0 50


■ Cv Range : 38 ~ 8,900




■ Features : for Noise, Light Caviting, Flashing

TRIM Construction

Single Seat Multi Hole

6 ARRAY 5 ARRAY 4 ARRAY 3 ARRAY

Cage Hole Arrangement

HEST-I Trim




.

VALVE BODY STYLE


TRIM

TRIM SIZE CLASS

Cv MINIMUM

CONTROLLA-BLE Cv

STEM TRAVEL VALVE SIZE

DN inch mm 6 ARRAY 5 ARRAY 4 ARRAY 3 ARRAY mm

HF900

Full Size

50 2 50

900-1500

49 44 37 1.1 25

65 2 1/2 65 63 58 50 1.1 40

80 3 80 100 90 1.5 50

100 4 100 200 187 168 142 2.0 50

150 6 150 376 352 317 267 4.2 65

200 8 200 630 584 520 433 6.4 80

250 10 250

150-1500

969 869 744 593 9.5 80

250 1144 1058 940 779 9.5 100

300 12

300 1130 993 833 651 10.8 80

300 1431 1301 1133 918 10.8 100

300 1608 1501 1349 1133 10.8 125

50 2 20

2500

39 36 32 1.1 25

65 2 1/2 65 53 50 45 1.1 40

80 3 80 82 76 1.5 50

100 4 100 150 144 135 120 2.0 50

150 6 150 357 336 305 260 4.2 65

200 8 200 582 545 492 416 6.4 80

250 10 250 916 830 719 580 9.5 80

250 1058 989 891 751 9.5 100

300 12

300 1084 961 814 641 10.8 80

300 1339 1231 1086 892 10.8 100

300 1481 1396 1271 1086 10.8 125

Reduced

65 2 1/2 50

900-1500

60 52 43 1.1 25

80 3 65 76 69 59 1.1 40

50 62 54 44 1.1 25

100 4 80 129 112 1.5 50

65 82 74 62 1.1 40

150 6 100 219 202 179 148 2.0 50

80 131 113 1.5 50

200 8 150 466 428 377 310 4.2 50

100 224 206 182 150 2.0 50

250 10 200

150-1500

762 695 608 495 6.4 80

150 480 439 384 314 4.2 65

300 12

250 1135 1003 846 665 9.5 80

250 1380 1256 1096 890 9.5 100

200 784 712 619 501 6.5 80

65 2 1/2 50

2500

51 46 39 1.1 25

80 3 65 67 62 54 1.1 40

50 57 61 42 1.1 25

100 4 80 112 101 1.5 50

65 77 70 59 1.1 40

150 6 100 215 199 177 147 2.0 50

80 130 113 1.5 50

200 8 150 446 412 366 304 4.2 65

100 222 204 180 149 2.0 50

250 10 200 735 675 594 487 6.4 80

150 473 433 381 312 4.2 65

300 12

250 1088 970 826 655 9.5 80

250 1297 1193 1063 867 9.5 100

20 768 700 611 496 6.5 80




HF900

Full Size

50 2 50

900-1500

41 37 31 1.1 25

65 2 1/2 65 53 49 42 1.1 40

80 3 80 85 76 1.5 50

100 4 100 170 159 143 142 2.0 50

150 6 150 320 299 269 227 4.2 65

200 8 200 535 496 442 368 6.4 80

250 10 250

150-1500

823 738 632 504 9.5 80

250 972 899 799 662 9.5 100

300 12

300 960 844 708 553 10.8 80

300 1216 1106 963 780 10.8 100

300 1367 1276 1146 963 10.8 125

50 2 50

2500

33 30 27 1.1 25

65 2 1/2 65 45 42 38 1.1 40

80 3 80 70 64 1.5 50

100 4 100 127 122 115 102 2.0 50

150 6 150 303 285 259 221 4.2 65

200 8 200 495 463 418 353 6.4 80

250 10 250 778 705 611 493 9.5 80

250 899 840 757 638 9.5 100

300 12

300 921 817 692 545 10.8 80

300 1138 1046 923 758 10.8 100

300 1259 1186 1080 923 10.8 125

Reduced

65 2 1/2 50

900-1500

51 44 36 1.1 25

80 3 65 64 58 50 1.1 40

50 53 46 37 1.1 25

100 4 80 109 95 1.5 50

65 70 63 53 1.1 40

150 6 100 186 172 152 126 2.0 50

200 8 150 396 364 320 263 4.2 65

250 10 200

150-1500 648 591 517 421 6.4 80

300 12 250 965 852 719 565 9.5 80

250 1173 1067 931 756 9.5 100

65 2 1/2 50

2500

43 39 33 1.1 25

80 3 65 57 53 46 1.1 40

50 48 52 36 1.1 25

100 4 80 95 86 1.5 50

65 65 59 50 1.1 40

150 6 100 183 169 150 125 2.0 50

200 8 150 379 350 311 258 4.2 65

250 10 200 625 574 505 414 6.4 80

300 12 250 925 824 702 557 9.5 80

250 1102 1014 903 737 9.5 100

■ KGC series valves - HEST-I Trim Design Cv : Equal Percentage Characteristic

VALVE BODY STYLE


TRIM

VALVE SIZE TRIM SIZE CLASS

Cv MINIMUM CONTROLLABLE

Cv

STEM TRAVEL

DN inch mm 6 ARRAY 5 ARRAY 4 ARRAY 3 ARRAY mm

HF600

Full Size

50 2 50

150-600

43 39 32 1.1 25

80 3 80 92 82 1.5 50

100 4 100 160 149 133 111 2.0 50

150 6 150 348 322 285 236 4.2 65

200 8 200 581 532 466 381 6.4 80

Reduced

80 3 65 66 60 51 1.1 40

50 54 47 37 1.1 25

100 4 80 109 95 1.5 50

65 70 63 53 1.1 40

150 6 100 193 177 155 127 2.0 50

200 8 150 410 374 327 269 4.2 65




■ KGC series valve - HEST-II Trim Design Cv

VALVE SIZE HEST-II/3 HEST-II/4 HEST-II/5 HEST-II/6 VALVE

TRAVEL (mm) EQ% LINEAR EQ% LINEAR EQ% LINEAR EQ% LINEAR

DN50 (2") 18.3 9.6 5.8 - 25

DN80 (3") 34.1 19.8 12.5 8.2 50

DN100 (4") 58.4 36.1 23.7 15.6 65

DN150 (6") 125.9 79.2 47.4 29.3 80

DN200 (8") 208.6 132 80.1 50.4 80

DN250 (10") 312.6 205.4 135 86.2 100

HEST-II TRIM CFD MODEL Flow Velocity Field at 2m/sec Pressure Field at 2m/sec

HEST-II

Hi-Fluidic Multi-Stage

CFD (Computational Fluid Dynamics) Analysis Model : HEST-ll Trim Valves


■ Cv Range : 5.8 ~ 1,173



■ Rangeability : Per Application

■ Features : for Noise & Cavitating Condition

TRIM Construction

HEST-II Trim Cage




■ KGC series valve - HEST-III Trim Design Cv

VALVE SIZE HEST-III/2 HEST-III/3 HEST-III/4 HEST-III/5 VALVE

TRAVEL (mm) EQ% LINEAR EQ% LINEAR EQ% LINEAR EQ% LINEAR

DN40 (1 1/2") All 20 30 8 10 40

DN50 (2”) ~2500 20 30 8 10 40

DN80 (3") ~1500 38 42 16 20 6 8 50

DN100 (4") ~2500 73 95 40 44 18 20 10 12 65

DN150 (6") ~1500 110 140 60 80 32 41 15 21 80

CAVITROL-III Trim 상단부 케비테이션 예측

HEST-III TRIM

HEST-III

Hi-Fluidic

CFD (Computational Fluid Dynamics) Analysis Model : HEST-lll Trim Valves

HEST-III TRIM CFD MODEL Velocity Pressure


■ Cv Range : 6 ~ 1,750




■ Features : for Noise & Cavitating Condition

TRIM Construction




HEST-IV TRIM

HEST-IV

Hi-Fluidic Labyrinth

CFD (Computational Fluid Dynamics) Analysis Model : HEST-lV Trim Valves


■ Cv Range : 5.4 ~ 1,150




■ Features : for Velocity & Cavitating Condition

TRIM Construction

HEST-IV TRIM Mass Fraction of Vapour (1/12)

Pressure (1/12) Velocity (1/12)





■ Cv Range : 75 ~ 2,750

■ Flow Direction : Over the Web

■ Leakage Class : Ⅴ


■ Features : Tight Shut off and High Pressure

■ Cv Value : 90% of the maximum capacity of

the applicable trim

TRIM Construction

Inner Pilot Trim

Soft Seat - Balanced

Inner Pilot Trim - Balanced

TRIM Construction

SOFT SEAT


■ Cv Range : 40 ~ 1,900


■ Leakage Class : ⅤI


■ Features : General Service, Level Control,

Feedwater Control

■ Cv Value : 80% of the maximum capacity of

the applicable trim

Trim Options

The pilot balanced plug design incorporates two plugs, the main larger diameter plug used for control and smaller

pilot situated inside the main plug significantly reduces fluid forces acting on the main plug. The design produces a

high integrity metal temperature where a resilient seal would be unsuitable. Opening of the valve is by the pilot plug,

which lifts from its seat prior to the main plug head. This produces a flow passage to equalize the pressure above and

below the valve plug, thereby significantly reducing the fluid forces acting on the valve plug. In the close position the

inlet pressure is admitted above the plug to produce a high downward seat load and the only leakage path is across

metal to metal seating.

Soft seat is specified on applications where it is desirable to have a maximum closure on the control valve. The soft

seat design consists of a resilient seal ring clamped into the plug by a face ring. When the soft seal contacts the valve

seat, a lip on the seat bites into the face of the seal and effectively prevents leakage through the seat. The soft seat

design can be specified in both balanced and un-balanced designs.




Steam Conditioning Valves

Steam Conditioning Valves Steam Pressure (Reducing) and Temperature (Desuperheating) Valves

A steam conditioning valve converts steam from an incoming state (pressure and temperature) to predetermined required outlet state (pressure and temperature).

Many industries, such as power plants, pulp and paper, petro-chemical facilities, require steam at a temperature very close to saturation. If the steam is supplied at a temperature too high the product or equipment can be damaged. If the temperature is too low there will be excess water. If the required control is lost, severe damage to piping and downstream equipment will occur, resulting in expensive maintenance cycles and loss of production.

Temperature Field Velocity Vector & Path

COMBINED PRESSURE REDUCING AND DESUPERHEATING ENSURE MAXIMUM

PERFORMANCE AND RELIABILITY.

TURBINE BYPASS VALVES RESIST THERMAL SHOCK AND FATIGUE.

HIGH RANGEABILITY DESIGNS MAXIMIZE OUTPUT IN STEAM CONDITIONING APPLI-

CATIONS.

Main applications – high pressure system

• Pressure control/turbine bypass

• Controlled pressure build-up in the boiler

Main applications – low pressure system

• Controlled pressure build-up in the reheater

• Pressure control/bypass of the intermediate and low pressure section of the

turbine

This will assist in avoiding release of the safety valves, and consequently helps to pre-

vent large condensate losses.

• Protection of the condenser in case of disturbances

Pressure and Temperature Conditioning Valve




SAMO : Spring Assist Multiple Orifice Desuperheater

VAD : Variable Nozzle Spray Desuperheater

MNCD : Multi Nozzle Control Desuperheater

– No need spray water control valve

PTCV : Pressure & Temperature Conditioning Control Valve

■ Design Parameters of PTCV

Steam Inlet Steam Outlet Cooling Water Parameter Unit

P1 P2 Pw Pressure barg

T1 T2 Tw Temp. ℃

Q1 Q2 = Q1 + Q3 Q3 Flow rate Kg/hr

Pressure Distribution Velocity Vector

High Pressure Turbine Bypass Valve DN150xDN350, 2500#, WC9

Analytical tools such as com-putational fluid dynamics (CFD) verify the superior spray pattern by the Turbine Bypass Valve’s injection devices.




Valve Size inch 1/2" 3/4" 1" 1-1/2" 2" 2-1/2" 3" 4" 6" 8" 10" 12" 14" 16"

DN (10) (20) (25) 40 50 65 80 100 150 200 250 300 350 400

FACE-TO-FACE DIMENSION

(END-TO-END DIMENSION)

A (RF

FLANGED TYPE)

150LB CF CF CF 222 254 276 298 352 451 543 673 737 889 1016

300LB CF CF CF 235 267 292 318 368 473 568 708 775 927 1057

600LB CF CF CF 251 286 311 337 394 508 610 752 819 972 1108

900LB 273 311 340

CF 387 464 600 781 864 1016 CF CF

1500LB CF 406 483 692 838 991 1130 CF CF

2500LB 308 359 CF CF 498 575 819 CF 1270 1321 CF CF

B (BUTT WELD TYPE)

150LB

187 222 254 292 318 368 451 543 673 737 851 1016 300LB

600LB

900LB 194 197 235 292 292 318 368 508 610 762 914

CF CF

1500LB CF CF

2500LB 216 260 318 318 381 406 610 762 1016 1118 CF CF

C (SOCKET

WELD TYPE)

150LB

165 197 235 267 318 368

300LB

600LB

900LB 194 197 235 292 292 318 368

1500LB

2500LB 260 318 318 381 406 216

CENTER-TO-SURFACE OF THE YOKE AT-

TACHMENT DIMENSION

D

150LB

185 215 220

230 245 345 390 455 560 570

CF CF

300LB CF CF

600LB CF CF

900LB 280 270 360 450 490 600 610

CF CF

1500LB CF CF

2500LB 250 295 325 390 495 530 635 645 CF CF

# RF = Raised Face. # CF = Consult Factory.

■ KGC series valve Dimensions

RF FLANGED TYPE BUTT WELD TYPE SOCKET WELD

KGC VALVES DIMENSIONS




Diaphragm Actuators

ACTUATORS

Multi-Spring Type Diaphragm Actuators P500-Series

Model No. 500-23 500-42 500-74 500-145 500-202

Rated Stroke (mm) 15 25 38 50 75

Maximum Stroke (mm) 25 38 50 75 100

Diaphragm Area (cm2) 150 237 471 844 1300

Max. Volume of Diaphragm Chamber (cm³) 850 1,500 3,400 10,000 14,000

Max. Operating Force Required at Handle (kg) -Top Mounted

16 19 26 41 56

Operating Direction Direct or Reverse Acting

Spring Range (kgf / cm2) 0.2 ~ 1.0 / 0.4 ~ 2.0 / 0.8 ~ 2.4

Diaphragm Material Ethylene Propylene Rubber Reinforced Nylon

Air Connection PT 1/4” Female Tap (Option 3/8”, 1/2”, NPT Female Tap)

Hand wheel No Hand wheel, Top Mounted, Top-side Mounted Hand wheel

Accessory Option

Positioner Electric Per Pneumatic (E/P), Pneumatic Per Pneumatic (P/P)

Air Set Filter & Regulator

Solenoid V/V 3 Way 2 Port Type Explosion Proof or Weather Proof

Limit S/W Single Pole Double Throw (SPDT), Double Pole Double Throw (DPDT)

Type Explosion Proof or Weather Proof

Other Option Air Lock Valve, Volume Booster Relays, Position Transmitter,

Current to Pressure (E/P) Transmitter, Other

Approx. Weight (kg) 7 16 27 47 72

Temperature Rating -30 °C ~ +70 °C

■ Specifications




Diaphragm Actuators

DA Type (Direct Action Type)

RA Type (Reverse Action Type)

* Consult factory for Side Mounted Hand wheel and Top-Side Mounted Hand wheel.

DA Type (Direct Action Type)

RA Type (Reverse Action Type)

Application of Control Valves

Multi-Spring Type Diaphragm Actuator

Model No. 500-23 500-42 500-74 500-145 500-202

L 105+15

95+25

102+38

172+75

100+100

H 260 334 407 612 712

Φd 56 56 70 90 120

t 22 22 26 35 40

ΦB 220 270 365 450 620

Top Mounted Hand wheel

H1 MAX. 507 580 722 998 1148

ΦD 150 200 250 400 500

Top Mounted Hand wheel

ACTUATORS

Multi-Spring Type Diaphragm Actuators P500-Series

■ Dimensions




Cylinder Actuators

Cylinder Type Actuators - P200 Series

Air Supply 4 Bar ~ 10 Bar

Spring Range Available application

Operating Direction Direct, Reverse, Double Acting

Material

Cylinder BLACK AMALGAM

Cover Carbon Steel

Piston AL. Alloy

Stem STS 410 ( Ni-Plating)

Air Connection PT 1/4” ~ 1” Female Tap

Hand wheel No Hand wheel, Top Mounted, Top-side Mounted Hand wheel

Accessory Option

Positioner Electric Per Pneumatic (E/P), Pneumatic Per Pneumatic (P/P)

Air Set Filter & Regulator

Solenoid V/V 3 Way 2 Port Type Explosion Proof or Weather Proof

Limit S/W Single Pole Double Throw (SPDT), Double Pole Double Throw (DPDT)

Type Explosion Proof or Weather Proof

Other Option Air Lock Valve, Volume Booster Relays, Position Transmitter,

Current to Pressure (E/P) Transmitter, Other

Temperature Rating -20 °C ~ +120 °C

■ Specifications




Cylinder Actuators

# Consult factory for proper selection.


1 1. Double Acting

2. Direct Acting

3. Direct Acting with Top-mounted Hand wheel

4. Tandem Piston with Bevel Geared Top-side mounted Hand wheel

5. Reverse Acting

6. Reverse Acting with Top-mounted Hand wheel

7. Reverse Acting with Bevel Geared Top-side mounted Hand wheel

2 3 4

5 6 7




Cylinder Actuators

Model No. A B C

(Max. Stroke)

Approx. H1 H2

DA RA

P200-300 300 350 100 700 600 310

P200-350 350 350 120 840 720 370

P200-400 400 450 150 870 720 400

P200-450 450 500 150 1100 950 400

P200-500 500 500 150 - - 400

P200-550 550 500 150 - - 400

P200-600 600 500 150 - - 400

■ CYLINDER ACTUATOR DA / RA TYPE

■ CYLINDER ACTUATOR DB TYPE

A C

(Max. Stroke) H1 H2

P200-300 300 100 245 150

P200-350 350 120 283 180

P200-400 400 150 350 225

P200-450 450 150 520 225

P200-500 500 150 540 240

P200-550 550 150 540 240

P200-600 600 150 560 265


[ DA Type Actuator ] [ RA Type Actuator ]




Information Required to Quote Cylinder or Diaphragm Actuators

1. Valve size, figure number or description.

2. Operating conditions (pressure, temperature, flow rate and fluid).

3. Maximum differential (shut-off) pressure.

4. Primary power supply-air or hydraulic-available maximum and minimum

pressure and source.

5. Failure mode (open, closed, as is)

6. Control voltage and enclosure designations (NEMA, etc.)

7. Auxiliary equipment :

a) limit switches

b) solenoids

c) positioners

d) manual over-rides

8. Valve orientation.

9. Preference for specific manufacturer, if any.

Cylinder Actuators


KVT MODEL P200-450TA TANDEM PISTON ACTUATOR

THRUST FORCE=152kN




Electric Actuators In many applications, operation of valves may require the use of electric, pneumatic or hydraulic actuators. Such applications include those where the valve (1) is too large or has too high a differential shut-off

pressure for manual operation; (2) is not accessible for manual operation; (3) is part of a system requiring simultaneous operation

of many valves; (4) must be triggered from a remote location, as is often

essential for emergency shut-off in hazardous areas. We will gladly furnish any type or make of actuator you specify, or make recommendations for your particular service conditions. All KVT’s gate, globe and non-return valves can be supplied with electric, air, gas or hydraulic driven motor actuators or cylinder actuators.

Motor Actuators Motor actuators for moving the stem of the valve can be powered by air, gas, hydraulic or electric power. The most common method of actuation is the electric motor actuator, as it is generally the most cost effective. Electric motor actuated valves can be provided to meet the broadest range of requirements including operating cycle time, use of integral or remote controls, starters and indicators, and a wide range of power sources. They are less readily adaptable to fail-safe operation than cylinder actuators because they generally require more stored energy. Air motor actuators are often specified in very hazardous locations where electric power is not available or permit-ted. The major disadvantage of this type of actuator is air consumption, particularly when applied to large valves. The combination of high gear ratio and long stroke can drain an entire air system unless the air supply system is specially designed to accommodate this type of actuator. Like electric motor actuators, these are not readily adapt-able for a fail-safe mode.

Information Required to Quote Motor Actuators

1. Valve size, figure number or description. 2. Valve operating conditions (pressure, temperature, flow rate

and fluid). 3. Maximum differential (shut-off) pressure. 4. Primary power supply:

a) electric-voltage, phase cycles b) gas or hydraulic-fluid, available flow rate, maximum and minimum pressure

5. Control voltage. 6. Valve stem position. 7. Closing time and frequency. 8. Required construction (NEMA, etc.) or local environment. 9. Auxiliary equipment:

a) push-button stations b) reversing controllers c) position indicators d) other (i.e., stem covers, etc.)

10. Special requirements (i.e., radiation, seismic, etc.)

Electric Actuators




Actuator - Pneumatic Instrumentation Diagram

POSITIONING CONTROL FOR SINGLE ACTING ACTUATOR

Arrangement S#1

FAST OPENING, SINGLE ACTING ACTUATOR

Arrangement S#3

ON-OFF CONTROL FOR SINGLE ACTING ACTUATOR

Arrangement S#4

Actuator Single Acting

Arrangement S#2

AIRLESS LOCK FOR SINGLE ACTING ACTUATOR




Arrangement P#1

POSITIONING CONTROL FOR DOUBLE ACTING ACTUATOR

Arrangement P#3

ON-OFF CONTROL FOR DOUBLE ACTING ACTUATOR

Actuator - Pneumatic Instrumentation Diagram

Actuator Double Acting

AIRLESS LOCK FOR DOUBLE ACTING ACTUATOR

Arrangement P#2

Arrangement P#4

AIRLESS CLOSE FOR DOUBLE ACTING ACTUATOR

Arrangement P#5

AIRLESS OPEN FOR DOUBLE ACTING ACTUATOR




ENGINEERING DATA

* Options for Stellite face or full Stellite available for most materials.

CAGE TRIM VALVES Hi-Fluidic KGC SERIES

■ Body Materials

Material Service Service Material

A216-WCB A105, SCPH2 -5 °C to 425 °C A351-CF3M F316L, SCS19A -253 °C to 454 °C

A217-WC6 F11, SCPH21 -5 °C to 593 °C A351-CF8C F347 -253 °C to 538 °C

A217-WC9 F22 -5 °C to 593 °C B26/B26M Aluminum -198 °C to 204 °C

A215-C5a F5A, SCPH61 -5 °C to 593 °C B61/B62 Bronze -198 °C to 287 °C

A217-C12A A182-F91 -29 °C to 650°C B168 Inconel -256 °C to 648 °C

- A182-F92 -29 °C to 650°C A494-M35-1 Monel 400 -256 °C to 482 °C

A352-LCB LF1/LF2, SCPH61 -45 °C to 343 °C A494-N-12MV Hastelloy B -253 °C to 537 °C

A352-LC3 LF3, SCPL3 -126 °C to 343 °C A494(CW-12MW) Hastelloy C -253 °C to 537°C

A351-CF8 F304, SCS13A -253 °C to 815 °C B367 Titanium -198 °C to 315°C

A351-CF8M F316, SCS14A -253 °C to 538 °C A494-CZ-100 Nickel -253 °C to 315°C

A351-CF3 F304L, SCS16A -253 °C to 538 °C A296-CN7M Alloy 20 -253°C to 148°C

■ Materials of Construction

Cage Plug Plug Stem Seat Service

420 SS. Hardened 410 SS. Hardened 431 SS. / 410 SS. Hardened / -35 °C to 399 °C

410 SS. / 316 SS. / -30 °F to 750 °F

316 SS. / 316 SS. with Chrome

Plated 316 SS. / 316 + Stellite NACE MR-01-75

17- 4PH SS./ Guide Diameter 17-4 PH -35 °C to 232 °C

410 SS Hardened -30 °F to 450 °F

420 SS. Hardened 17-4PH SS. 316 ST.ST. -35 °C to 232 °C

Hardened with PTFE

Face -30 °F to 450 °F

420 SS. Hardened 420 SS. Hardened 431 SS. 420 SS. Hardened 400 °C to 565 °C

With Super hard With Super hard 750 °F to 1050 °F

Monel K500 Monel 400 Monel 400 / Integral with Cage / -35 °C to 500 °C

Monel K500 Monel K500 -30 °F to 932 °F

Hastelloy C Hastelloy C Hastelloy C Integral with Cage/

Hastelloy C

Duplex Duplex Duplex Integral with cage/Duplex

Ceramic / 420 SS. 316 SS. + Ceramic 316 SS. 316 SS. + Ceramic




■ Recommended Limiting of Medium Flow Velocities

Metric Units Imperial Units

Body Size (mm) Liquid (m/s) Steam or Gas (m/s) Body Size (Inch) Liquid (ft/s) Steam or Gas (ft/s)

40, 50 13.5 150 1 1/2, 2 44 490

80, 100 13.5 150 3, 4 44 490

150, 200, 250, 300 13.5 150 6, 8, 10, 12 44 490

350, 400, 450, 500 12 130 14, 16, 18, 20 39 425

≥600 8.5 120 ≥24 28 390

* Note: Maximum outlet velocity (steam or gas) = 0.65 x sonic

■ Control Valve Seat Leakage Classification

Leakage Class Designation Maximum Leakage

Allowable Test Medium Test Pressure

I - - -

II 0.5% of rated capacity Air or water at 50-125°F

(10-52°C) 40-50 psig or max.

operating differential, whichever is lower

III 0.1% of rated capacity As above As above

IV 0.01% of rated capacity As above As above

V 0.0005 ml per minute of water per inch

of port diameter per psi differential water at 50-125°F(10-52°C)

Max, service pressure drop across valve plug, not to exceed ANSI body rating.

(100 psi pressure drop minimum)

VI Not to exceed amounts shown in fol-lowing table based on port diameter

Air or water at 50-125°F (10-52°C)

50 psig or max. rated differential pressure across valve plug, whichever is lower

■ Class Ⅵ Maximum Seat Leakage Allowable (In accordance with ANSI / FCI 70-2)

Nominal Port Diameter Bubbles per Minute ¹

in mm Ml per minute Bubbles per minute

1 25 0.15 1

1-1/2 38 0.30 2

2 51 0.45 3

2-1/2 64 0.60 4

3 76 0.90 6

4 102 1.70 11

6 152 4.00 27

8 203 6.75 45

¹ Bubbles per minutes as tabulated are a suggested alternative based on suitably calibrated measuring device, in this case a 1/4 inch(6.3mm)

O.D. x 0.032 inch(0.8mm) wall tube submerged in water to a depth of from 1/8 to 1/4 inch (3 to 6mm). The tube end shall be cut square and smooth with no champers or burrs, and the tube axis shall be perpendicular to the surface of the water. Other apparatus may be constructed and the number of bubbles per minute may differ from those shown as long as they correctly indicate the flow in ml per minute.




■ Sealing Materials according to Leakage Class and Temperature

Leakage Class Seal Material Temperature

Class III Carbon Graphite -35 °C(-30 °F) to 565 °C(1050 °F)

Class Ⅳ & V Carbon PTFE ‘U’ Seal -35 °C(-30 °F) to 260 °C(500 °F)

Class Ⅳ & V High Temp ‘U’ Seal 260 °C(500 °F) to 315 °C(600 °F)

Class Ⅳ & V Virgin PTFE ‘U’ Seal Cryogenic to -35 °C(-30 °F)

Class IV Carbon Triple Seal 315 °C(600 °F) to 565 °C(1050 °F)

Class V Inner Pilot Balanced -35 °C(-30 °F) to 565 °C(1050 °F)

Class Ⅵ Soft Face Seat -35 °C(-30 °F) to 232 °C(450 °F)

Class III, Ⅳ & V None (un-balanced) Cryogenic to 565 °C(1050 °F)

Class III, Ⅳ & V Metal ‘C’ Seal Cryogenic to 870 °C(1598 °F)

Linear

This characteristic provides a flow rate which is di-

rectly proportional to the valve lift. The proportional

relationship produces a characteristic with a constant

slope, so that with constant pressure drop the valve

gain will be the same at all flows.

Equal Percentage

Equal increments of valve lift produce equal percent-

age changes in the fluid flow. The change in flow rate

is always proportional to the flow rate just before the

change in plug position is made. The equal percent-

age characteristic is generally used on pressure con-

trol applications, and on other applications where a

large percentage of pressure drop is normally ab-

sorbed by the system itself.

Modified Equal Percentage

The Modified Equal Percentage Characteristic is designed to lie some where between linear and equal

percentage, having a low gain at the bottom, or opening condition, and becoming linear in the upper half

of its opening. It is mainly used when turn-down ratio in high.

Control Valve Flow Characteristics

Quick Opening

This provides for maximum change in flow rate at low valve lifts with a fairly linear relationship. Additional

increases in valve lift give sharply reduced changes in flow rate, when the valve plug nears the wide open

position, the change in flow rate approaches zero.

* Leakage Class of MSS-SP-61 is optional




Data for Calculation of Flow

Temp. (°C) Specific Weight

(kg / m³) Specific Heat (kcal / kg °C)

Coefficient of Viscosity

(kg s / m²)

Coefficient of Kinematic Viscosity

(m² / s) Thermal Conductivity

(kcal / mh °C)

0 999.9 1.008 1.829 x 10ˉ⁴ 1.79 x 10ˉ6 0.476

10 999.7 1.002 1.336 x 10ˉ⁴ 1.31 x 10ˉ6 0.494

20 998.2 0.999 1.029 x 10ˉ⁴ 1.01 x 10ˉ6 0.511

30 995.7 0.998 0.816 x 10ˉ⁴ 0.803 x 10ˉ6 0.526

40 992.3 0.998 0.676 x 10ˉ⁴ 0.668 x 10ˉ6 0.540

50 988.1 0.999 0.569 x 10ˉ⁴ 0.564 x 10ˉ6 0.552

60 973.2 1.000 0.482 x 10ˉ⁴ 0.480 x 10ˉ6 0.562

70 977.8 1.001 0.416 x 10ˉ⁴ 0.417 x 10ˉ6 0.571

80 971.8 1.003 0.365 x 10ˉ⁴ 0.368 x 10ˉ6 0.578

90 965.3 1.005 0.323 x 10ˉ⁴ 0.328 x 10ˉ6 0.583

100 958.4 1.007 0.290 x 10ˉ⁴ 0.297 x 10ˉ6 0.586

120 943.1 1.014 0.238 x 10ˉ⁴ 0.247 x 10ˉ6 0.589

140 926.1 1.023 0.203 x 10ˉ⁴ 0.215 x 10ˉ6 0.588

160 907.3 1.037 0.178 x 10ˉ⁴ 0.192 x 10ˉ6 0.585

180 886.9 1.054 0.158 x 10ˉ⁴ 0.175 x 10ˉ6 0.578

200 864.7 1.075 0.142 x 10ˉ⁴ 0.161 x 10ˉ6 0.568

220 840.3 1.102 0.129 x 10ˉ⁴ 0.150 x 10ˉ6 0.554

Property of Water




Material Comparisons

General Classification ASTM JIS

Temp. Casting Forging Casting Forging

High - Temperature

Cast Iron A126-Class B G5501-FC20 205 °C

Cast Iron A126-Class A G5501-FC25 250 °C

Carbon Steel A216-WCC - 425 °C

Carbon Steel A216-WCB A105 G5151-SCPH2 G3203-SFVC 2A 425 °C

1/2 Mo Steel A217-WC1 A182-F1 G5151-SCPH11 G3203-SFVA F1 455 °C

1 1/4 Cr-1/2 Mo A217-WC6 A182-F11 G5151-SCPH21 G3203-SFVA F11A 593 °C

2 1/4 Cr-1 Mo A217-WC9 A182-F22 G5151-SCPH32 G3203-SFCA F22A 593 °C

5 Cr-1/2 Mo A217-C5 A182-F5a G5151-SCPH61 G3203-SFVA F5D 650 °C

9 Cr-1 Mo-V A217-C12A A182-F91 650 °C

9 Cr-2 W - A182-F92 620 °C

Low - Temperature

AL Steel A352-LCB, LCC A350-LF2 G5121-SCPL1 G3205-SFL2 -46 °C

1/2 Mo Steel A352-LC1 G5121-SCPL11 -59 °C

2 1/2 Ni Steel A352-LC2 G5121-SCPL21 -73 °C

3 1/2 Ni Steel A352-LC3 A350-LF3 G5121-SCPL31 G3205-SFL3 -101 °C

13 Cr-1/2 Mo A217-CA15 A182-F6a G5121-SCS1 G4303-410 550 °C

Stainless Steel

18 Cr-8 Ni (CO.03) A351-CF3 A182-F304L G5121-SCS19A G3214-SUS F304L 800 °C

18 Cr-8 Ni (CO.08) A351-CF8 A182-F304 G5121-SCS13A G3214-SUS F304 800 °C

18 Cr-8 Ni-2Mo(CO.03)

A351-CF3M A182-F316L G5121-SCS16A G3214-SUS F316L 800 °C

18 Cr-8 Ni-2Mo(CO.08)

A351-CF8M A182-F316 G5121-SCS14A G3214-SUS F316 800 °C

18 Cr-8 Ni-Ti A182-F321 G3214-SUS F321 800 °C

18 Cr-8 Ni-Cb A351-CF8C A182-F347 G5121-SCS21 G3214-SUS F347 800°C

22 Cr-12 Ni A351-CH20 G5121-SCS17 1200 °C

23 Cr-19 Ni A351-CK20 G5121-SCS18 1200°C

19 Cr-27Ni-2 Mo-3Cu A351-CN7M G5121-SCS23 1200 °C




Stainless Steel

Monel Stellite 13Cr SS316 SS316L SS317

ASTM A217 A351 A351 A317 CAST #6 #12

Designation CA15 CF8M CF3M CG8M S-MONEL

Com

positio

n, %

Carbon C 0.15 0.08 0.03 0.08 - 0.90~1.4 1.4~1.85

Manganese Mn 1.00 1.50 1.50 1.50 - 1.00 1.0

Phosphorus P 0.04 0.04 0.04 0.04 - - -

Surphur S 0.04 0.04 0.04 0.04 - - -

Silicon Si 1.50 1.50 1.5 1.5 4.00 1.1 1.5

Nickel Ni 1.00 9.0~12.0 9.0~13.0 11.5~13.5 63.0 3.0max 3.0max

Chromium Cr 11.5~14.0 18.0~21.0 17.0~21.0 20.5~23.5 - 27.0~31.0 29.5

Molybdenum Mo 0.50 2.0~3.0 2.0~3.0 3.4 - - -

Titanium Ti - - - - - - -

Copper Cu - - - - 30.0 - -

Vandium V - - - - - - -

Nitrogen N - - - 0.08~0.2 - - -

Niobium Nb(Cb) - - - - - - -

Iron Fe bal bal bal bal bal 3.0max 2.5max

Tungsten W - - - - - 4.5 8.5

Cobalt Co - - - - - bal bal

Heat Treatment HT Solution Anneal Age Hard - -

Tensile( Min.), barg 6200~7930 4830 4830 5170 7590 8970 8970

Yielding (Min.), barg 4480 2070 2070 2410 5520 - -

Elongation( Min.), % 18 30 30 25 - 1 1

Red. Area (Min.), % 30 - - 36 - - -

Hardness, HB 327~381 187 Max 187 Max 185 Max 387 Max 390~451 390~451

Parts Disc Body, Bonnet, Trim Trim Trim, HF Trim, HF

Carbon Steel Alloy Steel

1.25Cr-0.5Mo 5Cr 2.25Cr-1Mo 9Cr 9Cr-V

ASTM A216 (1) A352 A217 A217 A217 A217 A217

Designation WCB LCB WC6 C5 WC9 C12 C12A

Com

positio

n, %

Carbon C 0.30 0.30 0.20 0.20 0.18 0.15max 0.08~0.12

Manganese Mn 1.00 1.00 0.50~0.80 0.40~0.70 0.40~0.70 0.40~0.70 0.3~0.4

Phosphorus P 0.04 0.04 0.04 0.04 0.04 0.04max 0.03

Surphur S 0.045 0.045 0.045 0.045 0.045 0.045max 0.01

Silicon Si 0.60 0.60 0.60 0.75 0.60 0.50~1.00 0.2~0.5

Nickel Ni 0.50 - 0.50 0.50 0.50 - 0.40

Chromium Cr 0.40 - 1.00~1.50 4.00~6.50 2.00~2.75 8.00~10.0 8.0~9.5

Molybdenum Mo 0.25 - 0.45~0.65 0.45~0.65 0.90~1.20 0.90~1.20 0.85~1.05

Titanium Ti - - - - - - -

Copper Cu - 0.50 0.50 0.50 - - -

Vandium V - - - - - - 0.8~0.25

Nitrogen N - - - - - - 0.03~0.07

Niobium Nb(Cb) - - - - - - 0.06~0.1

Iron Fe bal bal bal bal bal bal bal

Tungsten W - - - - - - -

Cobalt Co - - - - - - -

Heat Treatment Anneal Quench Annealed

Tensile (Min.), barg 4830 4480~6200 4830~6200 6200~7930 4830~6200 5860 5860

Yielding (Min.), barg 2480 2410 2760 4140 2760 3790 4140

Elongation (Min.), % 22 24 20 18 20 20 18

Red. Area (Min.), % 35 35 35 35 35 40 45

Hardness, HB 187 Max 197 Max 207 Max 217 Max 207 Max 207 Max 217 Max

Parts Valve Body, Bonnet, Disc

Note : (1) A216 Gr. WCB (CASTING) A105(FORGING)

Material Property




Segments

Fluid Flow Path

Velocity of the Flow Pressure range of the Flow

Globe Control Valve - Flow Dynamics Simulation

Material Test Pressures by Classes, bar

Group No.

Forging Casting 150 300 600 900 1500 2500 4500

Shell Shell Shell Shell Shell Shell Shell

1.1 A105

A216-WCB 79.5 156.5 236.0 392.0 652.5 1172.5 32.0 A350-LF2

1.5 A182-F1 A217-WC1

28.5 74.0 148.0 221.5 367.5 612.0 1099.0 A352-LC1

1.9 A182-F12

A217-WC6 32.0 79.5 158.2 237.5 395.5 659.5 1186.5 A182-F11

1.10 A182-F22 A217-WC9 32.0 79.5 158.2 237.5 395.5 659.5 1186.5

1.13 A182-C5 A217-C5 32.0 79.5 158.2 237.5 395.5 659.5 1186.5

1.14 A182-F9 A217-C12 32.0 79.5 158.2 237.5 395.5 659.5 1186.5

2.1 A182-F316 A351-CF3

30.0 77.5 153.0 229.0 380.0 633.0 1139.5 A182-F304H A351-CF8

2.2

A351-CF3A

30.0 77.5 153.0 229.0 380.0 633.0 1139.5 A182-F316 A351-CF8A

A182-F316H A351-CF3M

A351-CF8M

Hydrostatic Shell Test Pressure




KVT Control Valve on Seismic Simulator

Model Mode-l Mode-lI Mode-lII Mode-VI

Pressure Analysis Stress Analysis (YOKE)

Control Valve Assembly - Eigenvalue Analysis

Flow Characteristic Testing Facility




1 2

K G

3 5 6 7

B 2 B A B B

8

A C

9

W N

1 Code 1

Products K : KVT PRODUCTS

M : MAINTENANCE SERVICE

O : OTHER & OEM PRODUCTS

2 Code 2

Valve Body Types A : ANGLE GLOBE VALVES

B : BALL VALVES

C : CHECK VALVES

D : DIAPHRAGM VALVES

E : INSTRUMENT NEEDLE(BAR STOCK TYPE)

GLOBE OR MANIFOLD VALVES

F : FORGED GLOBE VALVES

G : CAST GLOBE VALVES

H : BELLOWS SEALED GLOBE VALVES

J : FORGED PARALLEL SLIDE GATE VALVES

K : CAST PARALLEL SLIDE GATE VALVES

L : BELLOWS SEALED GATE VALVES

M : AUTOMATIC RECIRCULATION VALVE(ARV)

P : NOZZLE PLUG CHECK VALVES

R : 3-WAY(CAST-GLOBE STYLE) VALVES

T : OTHER TYPES OF GATE VALVES

U : BUTTERFLY VALVES

X : SPECIAL TYPES

Y : Y-GLOBE/STOP CHECK VALVES

3 Code 3

Valve Bonnet Types B : BOLTED BONNET

C : EXTENDED FINNED TYPE BONNET(CRYOGENIC)

S : SCREWED-IN SEAL WELD BONNET

P : PRESSURE SEALED BONNET

W : WELDED BONNET

E : EXTENDED FOR HOT TEMPERATURE SERVICE

F : FLANGED JOINT FOR NOZZLE CHECK VALVES

N : NON-SPECIFIED BONNET SUCH AS BUTTERFLY/BALL VALVES

4 Code 4

Operating Power Types D : DIAPHRAGM-PNEUMATIC POWER

OPERATED

E : MOTOR(ELECTRIC) OPERATED

G : MANUAL - GEARED OPERATED

H : HYDRAULIC-ELECTRIC OPERATED

M : MANUAL OPERATED

P : PISTON - PNEUMATIC POWER OPERATED

R : REGULATING - NO POWER REQUIRED

X : BARE STEM DESIGN

Code 4

P

K G B P 2B AB B A CNW

1. KVT PRODUCTS

2. Valve Body Type ; CAST GLOBE VALVES

3. Bonnet Type ; BOLTED BONNET

4. Operating Power Types ; PISTON - PNEUMATIC POWER

OPERATED

5. Valve Body Size ; 250mm(10")

6. Pressure Rating ; ANSI-250/300

7. Connection Type ; BUTT WELDED

8. Body Construction Materials ; A105N/A216-WCB

9-1. Function ; Flow Modulating or E/P Control

9-2. Function - By-pass & Equalizing ; No Options

9-3. Application; WATER SERVICE

Application Code 9.1

In case Code 2-J, K

Application Code 9.2 Otherwise Code 2-J, K

PRODUCT CODING SYSTEM




5 Code 5

Valve Body Sizes 00 : ALL SIZES COVER

08 : 8mm (1/4")

10 : 10mm (3/8")

15 : 15mm (1/2")

20 : 20mm (3/4")

25 : 25mm (1")

32 : 32mm (1-1/4")

40 : 40mm (1-1/2")

50 : 50mm (2")

65 : 65mm (2-1/2")

80 : 80mm (3")

1A : 100mm(4")

1B : 125mm(5")

1C : 150mm(6")

2A : 200mm(8")

2B : 250mm(10")

3A : 300mm(12")

3B : 350mm(14")

4A : 400mm(16")

4B : 450mm(18")

5A : 500mm(20")

5B : 550mm(22")

6A : 600mm(24")

6B : 650mm(26")

7A : 700mm(28")

7B : 750mm(30")

8A : 800mm(32")

8B : 850mm(34")

6 Code 6

Pressure Rating KA : KS/JIS-10K

KB : KS/JIS-20K

KC : KS/JIS-30K

KD : KS/JIS-43K

AA : ANSI-125/150

AB : ANSI-250/300

AC : ANSI-400

AD : ANSI-600

AE : ANSI-800

AF : ANSI-900 (PN150)

AG : ANSI-1500(PN250)

AH : ANSI-2500(PN420)

AI : ANSI-3500

AJ : ANSI-4500

7 Code 7

End Connection S : SOCKET WELDED

B : BUTT WELDED

R : RAISED FACED

T : RING/TONGUE JOINT

N : NOT SPECIFIED

8 Code 8

Body Construction Materials

A : A105N/A216-WCB

B : A182-F11,F12/A217-WC6

C : A182-F22/A217-WC9

D : A182-F51/DUPLEX, 6% Mo Steel

E : A182-F91/A217-C12A

F : A182-F304/A351-CF8

G : A182-F304L/A351-CF3

H : A182-F316/A351-CF8M

I : 182-F316L/A351-CF3M

J : A182-F317

K : A182-F321

L : A182-F347

M : MONEL

N : INCONEL 625

9 Code 9.1

Option Code per Valve Types

First digit - Function

N : General Purpose Operation

Q : Fast Acting

C : Throttling

Second digit - Function - By-pass & Equalizing

N : INTERNAL EQUALIZING

(OR NO EQUALING HOLE)

ON THE DISC & WITHOUT BY-PASS

1 : INTERNAL EQUALIZING & BY-PASS PIPING

(ONE VALVE) - UNI DIRECTIONAL

2 : BY-PASS PIPING AND EXTERNAL EQUALIZING

LINE(TWO VALVES) - UNI DIRECTIONAL

3 : BY-PASS PIPING AND EXTERNAL EQUALIZING

LINE(THREE VALVES) - BI DIRECTIONAL

4 : OVER PRESSURE PROTECTION

- RELIEF VALVE ONLY - BI DIRECTIONAL

5 : RELIEF VALVE & BY-PASS PIPING

(3-WAY PSGV) - BI DIRECTIONAL

6 : BY-PASS PIPING & DRAIN VALVE

7 : EQUALIZING, BY-PASS PIPING & DRAIN VALVE

Third digit - Application

S : STEAM SERVICE

W : WATER SERVICE

L : LIQUID SERVICE EXCEPT WATER

G : GASEOUS SERVICE

N : NOT SPECIFIED

H : High Temperature

- Extension Bonnet Required (above 600℃)

9 Code 9.2

Option Code per Valve Types

First digit - Function

N : On-Off Control

Q : Fast Acting or Emergency Shut-off Action

C : Flow Modulating or E/P Control

S : Stop Check or Check Valve

- Non-return Check Function

B : Blowdown (Pressure Letdown) Control

E : Instrumentation Purpose

D : Desuperheating Control (PTCV)

T : Double Block & Bleed

Second digit - Function - By-pass & Equalizing

N : No Options

1 : Equalizing piping or Holes

2 : Drains

3 : Explosion Proof

4 : Special Options Required

5 : Orifice Attached in the Valve Outlet

Third digit - Application

S : STEAM SERVICE

W : WATER SERVICE

L : LIQUID SERVICE EXCEPT WATER

G : GASEOUS SERVICE

N : NOT SPECIFIED

H : High Temperature

- Extension Bonnet Required (above 600℃)

* In case 3-Ways Valve, Select Standards with Inlet Diameter

* In case medium class,

Select with low class.

That is, in case 2250#

Select with 1500#.

Parallel Slide Gate Valves Globe Style Control Valves

Key Valve Technologies Ltd. 13, Gongdan 2-daero 139beon-gil, Siheung-si,

Gyeonggi-do, Korea. 429-450

Tel : +82 31 363 0700

Fax : +82 31 432 0752

Email: [email protected]

www.keyvalve.com

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