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8/10/2019 Merla FCV series
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FCV SERIE
FCV-seriesvalve also available in high-
temperature configuration.
FCV Flow Control ValveInline-Threaded
FCV Flow Control Valve- Angle-Flanged
Applications
Oil, gas, and water service
Steam injection and high-
temperature service.
Benefits
Internal component replac
without removing valve fro
line.
Features
Valve adjusting handle is
to provide repeatable sett
Valve trims, seats, and bo
available in various mater
Operates in any installatio
Cold Service.
H2S Sour Gas.
Redress and Repair Kits a
alignment.
Manually lockable handle.
handle that is calibrated in 64 of an inch
increments for accurate setting. The
valve stem packing gland adapter is equipped
with Teflon
packing for a positive seal and
requires minimum maintenance. Threaded and
buttweld connections are rated for 5000 psiworking pressure [34,475 kPa] and socketweld
connections are rated for 3600 psi [24,822 kPa]
FCV Series valves are designed to
operate in any installation position and
resist the effects of vibration on the selected
setting. Their construction allows easy
inspection or replacement of internal
components without removing valve body from
line. Type 316 & 410 stainless steel
bodies, stainless steel handles and stainless
steel valve setting indicator rings are availablefor corrosive service.
Valve trim and seats are available in
stainless steel, tungsten carbide materials or other
The valve stem and seat sizes
6.35, 9.52,
FCVT high-temperature valves are designed
for steam injection or other high-temperaturegas or liquid service. Rated for 3500-psi
25.4 mm] stainless steel and/or tungsten carbide trimand high-temperature packing.
The FCVT high-temperature valves are available
with flanged, threaded, socket weld and butt-welded end
connections.
1 in.and 2 in. [25.4and 50.8mm] bodysizes and a wide range trim configurations.These valves feature a valve adjusting
FCV Series valves are available in
12.7, 19.05, 25.4mm]
3/8, 1/2 , 3/4, or 1in. [3.17, 6.35, 9.52, 12.7, 19.05,
th
working pressure. Flanged end connections
ranging from 1 in. to 3 in. are also available.
[24.133-kPa] working pressure at 700 F [371 C],
these 2 in [50.8mm] angle body valves feature 1/8, 1/4,
coatings as required.
are available in 1/8, 1/4, 3/8, 1/2 ,3/4, &1 in. [3.17,
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8/10/2019 Merla FCV series
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Flanged Angle Body 2A Through Body 2T
End Connections(Type)
B(in. [mm])
C(in. [mm])
D(in. [mm])
Schedule 80 butt weld
Threaded3.370 [85.6] 10.000 [254.0] 1.720 [43.7]
FCVT DIMENSIONAL DATA
C
B
BD
B
A
B
D
C
A
D
C
A
B
D
FCV-2T FCV-Flanged 2T FCV- 2A OR 2T
Threaded Angle Body 2A
Note: For Custom/API Standard Dimensions Please C
Dimensions (in. [mm])
A B C D
Approximate We(lbm [kg])
EndConnectionsType/Size)
1 2 3 1 2 3 1 2 3 1 2 3 1 2
Threaded 6.300[160.0] 7.800[198.1]OUTLET 2.978
3.790 [96.27] 7.900 [200.7] 8.810 [223.8]
Butt weld 160
5.000[127.0] 7.450[189.2]
8.650[219.7]
Socketweld 6.750 [171.5] 2.500 [63.5] 3.370 [85.6] 8.650[219.7]
1.720 [43.7] 20 [9.1]
Series150RF 11.849[300.96]7.720[196.08] 3.000[76.2]
Series150RJ
9.615[244.22]
11.724[297.79] 4.750[120.65]
5.923[150.44]6.785[172.34]
1.060[26.9]
2.125[53.96]
10[4.5]
32[14.5]
Series600RF 13.104[332.84] 14.544[369.32] 6.552[166.42]7.970[202.44]
Series600RJ 10.130[257.30] 12.604[320.14]
5.320[135.12]
6.302[160.07]2.440 [62.0] 3.250 [82 .6] 18 [8.2] 40 [18.1]
Series1500RF 15.344[389.74]
7.422[188.52]8.970[227.84]
Series1500RJ 14.844[377.04]
17.284[439.01]
7.672[194.87]
7.100[180.34]
2.94[74.67]Series900RF 16.044[407.52]
7.422[188.52]
70[ 31.8]
Series900RJ
API 3000
API 5000
11.010[279.654] 15.544[394.82]
5.070[128.77]
5.862[148.89]
7.600[193.04]
4.250[108.0] 30
[13.6]
90 [40.8]
FCV-2T, AND FCV-2A/2T VALVES DIMENSIONA
9.490[241.05]
10.630[270.00]
11.510[292.35]
11.510[292.35]
11.010[279.654]
15.464[392.79]
13.044[331.32]
12.981[329.72]
14.044[356.72]
16.784[426.31]
16.164[410.57]
17.424[442.57]
5.760[146.30]
5.510[139.95]
5.760[146.30]
5.510[139.95]
4.810[122.17]
7.672[194.87]
7.732[196.39]
15.344[389.74]
14.844[377.04]
INLET 2.850
www.merla.comCopyright Merla LLC, 2010. All Rights Reserved. - Rev.2
8/10/2019 Merla FCV series
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FCV Series Design
Design Overview
Design Principle
Valve Features
FCV Series valves are designed for a variety of oil, gas, and water services. Valvesare available in two body styles depending on application: Angle Body Through Body (Inline)
The through-body design is used primarily to control gas flow into a gas liftinstallation; while the angle body can also be used for fluid flow control. An indicatring and handle arrangement allows the valve to be set to a known flow area.
The primary components of an FCV valve are the body, packing gland adapter, valvestem, and seat. A handle is attached to the valve stem and an indicator ring is attacheto the packing gland adapter.
Counter clockwise rotation of the handle opens the valve. A notch on the handle
shows the valves position on the indicator ring. The flow area is represented by anorifice diameters in 1/64 in increments on the indicator ring.
Once the valve stem is in the desired position, it can be manually locked in place.This is accomplished by screwing the set screw on top of the handle down.
The valve design directs flow away from the valve and toward the seat. The valve isdesigned to be readily repairable in the field. Removal of the packing gland adapterallows all internal components to be removed and replaced.(See maintenance section
The body comes in a variety of end connections, including threaded, buttweld, sockeweld, and flanged. The end connections range from 1 to 3 inches.
The valve trim comes in a variety of materials and sizes (1/8, 3/8, 1/4, 1/2, 3/4, and 1inch). The handle is available in either aluminum or stainless steel.
The Teflon packing is spring energized to enhance low pressure sealing integrity. Th
packing gland spacer holds the seat in place and provides space for the packing sprin
The 1 in body is available in ASTM 216 WCB material. The 2 in Through-body isoffered in ASTM 216 WCB, while the 2 in Angle-body is offered in ASTM 350 Lf2,forged alloy. The 2 in and 3 in are available in 316L casting.
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8/10/2019 Merla FCV series
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Removing the Trim
Note:
Figure 1
0
NOTCH
RO or
sed Mark
Handle has a notch for setting and reading the adjustment of the valve. By placingnotch at -0- the valve will be in a closed position (Figure 1). Directly above andbelow notch are located the indicator and handle set screws (Detail 1).
1. Open valve by rotating handle two full turns in a counter-clockwise rotation.
2. Bleed pressure from valve by loosening NPT plug located on valve body.
Caution:Escaping gas under pressure. Wear ear and eye protection.
3. Remove locking set screw from handle and loosen the remaining set screwith 3/16 allen wrench.
4. The primary set screw should be loosened three full turns to clear stem.Handle is now free to be removed. Once handle is removed, the flow indicring is easily able to be removed. (Figure 8)
5. Use adjustment spanner wrench P/N 102200 to loosen and remove thepacking gland adapter.(Detail 2/Figure 2)
6. Once packing gland adapter is removed, the seat is accessible and can nobe removed.
7. Inspect seat sealing surface area and set o-ring for any surface damage. Irecommended to replace seat and/or o-ring upon any damage finding.(Figu
FCV Series Maintenance
Handle
NPTPlug
DETAIL 1
Set Screws
DETAIL 2
Insert SpanneWrench here
P/N 102200
Packing Gland
Adapter
Spanner Wrench P/N 102200
Figure 2
acking glanddapter
Insert SpannerWrench here.
P/N 102200
Set o-ring
Seat
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8/10/2019 Merla FCV series
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nstalling NEW Packing Set
Removing Packing Set
1. Unscrew the stem and remove from the packing gland adapter. The packinggland spacer, spring, and washers will now be free for removal.
2. Push the packing out of the packing gland adapter with a flat headscrewdriver. Remove one or two packing ring seals at time until all areremoved.
Caution: Use care not to scratch the packing bore surface.
Note: Use P/N 102100 tool to install packing set. Tool is customized forprecise fit with packing.
1. Inspect packing gland adapter bore surface for any scratches or pitting. If any surffinish damage is found, replacing packing gland adapter is recommended.
2. Grease packing gland adapter bore with Lubriplate multi-purpose grease P/N 1020Provided with repair kit.
3. Put Lubriplate grease between each packing ring seal. Place packing gland adapterupside down, insert packing washer with beveled edge down.
4. Using P/N 102100 tool insert each packing ring seal one at a time. The Lubriplate the packing ring seal will aid in attaching to tool. (See figure 5)
Note: The first packing ring seal pushed into the packing gland adaptermust have a flat bottom. (See figure 6)
5. Once all packing ring seals are in place, fit spring washer with spring on top. Placepacking gland spacer on next. Spring should easily fit on spacer. (See figure 7)
6. Grease stem sealing surface with Lubriplate P/N 102000. This will facilitate matinwith packing gland spacer, spring, washers and packing gland adapter assembly.Push stem through assembly keeping stem tip face-up.
7. Take care not to damage stem sealing surface. Turn stem into assembly using handMild tapping with mallet might be needed for proper engagement. Continue untistem sits properly on packing gland spacer and packing gland adapter have coupproperly. The stem will now be at the full open position.
8. If seat is being replaced, coat seat o-ring with Lubriplate grease P/N 102000. Instaseat into body with the o-ring side down.
9. Grease packing gland adapters thread. Using P/N 102200 spanner wrench tightenpacking gland adapter onto valve body.
Note: Packing gland adapter OD o-ring should not be visible at properthread engagement. Do not over tighten packing gland adapter.
Figure 7
Figure 5
Lubricate betweentool & packing ring.
02100
Figure 4
Figure 6
Packing glandadapter
st packingg sealshed intond must
ve flat
ackingasher
Stem
Springwasher Spring
Packingglandspacer
www.merla.comCopyright Merla LLC, 2010. All Rights Reserved. - Rev.2
8/10/2019 Merla FCV series
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8/10/2019 Merla FCV series
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ISOMETRIC VIEW
FOR REFERENCE ONLY
NOTE: PARTS MAY VARY DEPENDING ON ACTUAL VALVE SPECS.
BILL OF MATERIALS
7 165
11
196 14128
1
5
2
3 13
4
Parts Included in Repair Kit or Redress Kit. (All kits are provided with Lubriplate grease P/N 102000)
MATERIALDESCRIPTIONPART NUMBERQTYITEM
ASTM 2162" THREADED THRU BODY10263011
VITONO-RING, SERIES 2-216102124-21612
VITONO-RING, SERIES 2-220102124-22013
316 SSNAMEPLATE10268414
PACKING GLAND ADAPTER10257915
ALLOY STEELSET SCREW, HALF DOG POINT10265536
410 SS3/4" VALVE STEM10258817
410 SSPACKING WASHER10258218
18-8 SSSET SCREW CUP POINT10265619
PTFEFCV .875 SEAL STACK ASSEMBLY102589110
Aluminum or 3033/4" TRIM INDICATOR RING102904111
410 SSSPRING WASHER102583112
316 SSPACKING SPRING103024113
316 SSPACKING GLAND SPACER102580114
Aluminum or 303HANDLE102631115
316 SS3/4" VALVE SEAT102585116
410 SS
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8/10/2019 Merla FCV series
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FCV Trimsize 1/4 inch
DischargeCoefficientCV
Valve Setting n/64ths
www.merla.com
0
1
2
3
4
5
6
7
8
9
FCV with 1/8 Trim
Valve Setting n/64ths
0 1.6 3.2 4.8 6.4 80.8 2.4 7.25.64
0
1
2
3
4
5
6
7
8
9
FCV with 3/8 Trim
Valve Setting n/64ths
0 4.8 9.6 14.4 19.2 242.4 7.2 21.616.812
DischargeCoefficientC
DischargeCoef
ficientCV
Copyright Merla LLC, 2010. All Rights Reserved. - Rev.2
8/10/2019 Merla FCV series
9/9Copyright Merla LLC, 2010. All Rights Reserved. - Rev.2c www.merla.com
0
0 12 26 38 52 64
1
2
3
4
5
6
7
8
9
FCV with 1 Trim
Valve Setting n/64ths
6 18 584432
DischargeCoefficientCV
FCV Trimsize 1/2 inch
DischargeCoefficientC
V
Valve Setting n/64ths
FCV Trimsize 3/4 inch
DischargeCoefficientCV
Valve Setting n/64ths