For application of changesOSHA StandardPressure Relief 3 Port Valve with Locking Hol

esExisting Series VHS20~50 (Discontinued)

New Series VHS20~50-A,B

For application of changes1. Main differences 　　　　　　　　　　　　　　　　　　　　　　

1. Energy saving / Improved flow-rate characteristics (P5 and 6)　　　 The max. 45% increased effective area shortens supply and exhaust tim

es.

　　　 Resin handle and bonnet are available to reduce the weight.

　　　 No air bleed when the handle switches reduces energy consumption.

2. White external color (P7)　　　 External color changed from silver to white.

3. Additional variations (P8 and 9)　　　 Applicable sizes to the double action type expanded and options added.

4. Specifications and performance (P10)　　　 No change from the existing series.

5. Mounting interchangeability (P12 and 13)　　　 Mounting (face-to-face) dimensions are interchangeable, but the product

height varies for specific models.

　　　　

Main differences from the existing series

For application of changes2. How to Order (New Series) (1) Single Action Type　　　　　　　　　　　　　　　　　　　　

VHS 40 – 04 A – BS – –

Body size

20

30

40

50

Thread type

Nil Rc

F G

N NPT

Port size Body size

Symbol Size 20 30 40 50

01 1/8 ● - - -

02 1/4 ● ● ● -

03 3/8 - ● ● -

04 1/2 - - ● -

06 3/4 - - ● ●

10 1 - - - ●

Handle / Bonnet material

A Flame resistant PBT

B Aluminum

Made-to-order

X1 Red body

*1) Available only for the NPT thread type.

How to Order: No change from the existing series. The new series has the "A" or "B" identification symbol added after the port size.

Option

Symbol Content

B With bracket

S Silencer built-in (EXH port)

Semi-standard

Symbol Content

K Black handle

R Reverse flow: Right to leftZ *1 Units on product label: psi

Identification symbol for new se

ries

For application of changes2. How to Order (New Series) (2) Double Action Type　　　　　　　　　　　　　　　　　　　　

VHS 4 510 – 04 A – BS – –

Body size

2

3

4

5

Thread type

Nil Rc

F G

N NPT

Port size Body size

Symbol Size 2 3 4 5

01 1/8 ● - - -

02 1/4 ● ● ● -

03 3/8 - ● ● -

04 1/2 - - ● -

06 3/4 - - ● ●

10 1 - - - ●

Handle / Bonnet material

A Flame resistant PBT

B Aluminum

Option

Symbol Content

B With bracket

S Silencer built-in (EXH port)

Semi-standard

Symbol Content

K Black handle

R Reverse flow: Right to leftZ *1 Units on product label: psi

Made-to-order

X1 Red body

Double action

*1) Available only for the NPT thread type.

How to Order: No change from the existing series. The new series has the "A" or "B" identification symbol added after the port size.

Identification mark for new series

For application of changes3. Features (2) Lower Lower air consumptionair consumptionNo air bleed when the handle switches reduces energy consumption.No air bleed when the handle switches reduces energy consumption.

Existing seriesPoppet

Valve

IN OUT

EX

H

Seating surface

New seriesSpool

Spool

Seating surface

O-ring

IN, OUT and EXH ports are connected during the valve moving.= Bleeding air

O-ring

IN, OUT and EXH ports are NOT connected during the valve moving.= Not bleeding air

For application of changes3. Features (1)

Weight reduction with material chWeight reduction with material change to resinange to resin

Max 60% down

Model Existing series

New series

Reduction

VHS20 190g 76g -60%

VHS30 250g 127g -49%

VHS40 350g 247g -29%

VHS50 770g 532g -31%

Improved flow-rate characteristicsImproved flow-rate characteristics

Model

C (dm3/S ・ bar)

Improvement

Existing series

New series

VHS20 1.99 2.41 +21%

VHS30 6.20 8.32 +34%

VHS40 11.0 14.2 +29%

VHS50 16.4 23.8 +45%

Max. 45% up

Resin handle and bonnet

Supply and exhaust times can be shortened.

For application of changes3. Features (3) Improved flow-rate characteristicsImproved flow-rate characteristics

BBrright color with urban white baseight color with urban white base

New seriesExisting series

Urban whitePlatinum silver

With locking holes[Prevents accidents caused by unintentional air supply]

For application of changes3. Features (4) Variations expandedVariations expanded

Applicable models

Size 2510 addedSize 3510 added

Size Existing series

New series

2510 ●

3510 ●

4510 ○ ○

5510 ○ ○

Double action

Push and turn, 2 step mechanism to prevent incorrect operation of the handle

Turn the handle.

Push down the handle

For application of changes3. Features (5) Variations expandedVariations expanded

Options added"-B": With bracket“-S”: Built-in silencer (EXH port)

Exhaust air

Options

Element coverO-ring

With bracket

Cross recessed round head screw

Bracket

Built-in silencer (EXH port) Element

Element cover

For application of changes4. Specifications

* Platinum silver for the existing series.

ModelVHS20 VHS30 VHS40 VHS40-06 VHS50

VHS2510 VHS3510 VHS4510 VHS4510-06 VHS5510

Fluid Air

Ambient and fluid temperature

-5~60oC (No freezing)

Proof pressure 1.5 MPa

Operating pressure range 0.1~1.0 MPa

Handle switching angle 90o

External color (Standard)Handle: Red

Body: Urban white

Standard specifications

For application of changes5. Construction

No. DescriptionMaterial

RemarksVHS20~50-A VHS20~50-B

1 Body ADC12 Urban white

2 Bonnet PlateFlame resistant PBT (Equivalent to V-0)

ADC12 Urban white

3 HandleFlame resistant PBT (Equivalent to V-0)

ADC12 Red

4 Cam ring POM -

5 Spool PBT -

6 Spool O-ring H-NBR -

7 Spool spring Stainless steel -

8 Sleeve POM -

- Measure for low concentration ozone standardized: HNBR.

- No use of copper (Cu)

For application of changes6. Dimensions (1)

Face-to-face dimensions interchangeable

Values in ( ) are dimensions of the existing series.

P1 P2 C E G H J K L M　 　 VHS20 1/ 8 1/ 4・ 1/ 8 66.4 (59.2) 22 (19.8) 40 37.5 (34) 14 46.6 (45) 33.6 28 37.5 (45) 24 4.5 14.8 9　 　 VHS30 1/ 4 3/ 8・ 1/ 4 80.3 (78.2) 29.4 53 49 (46) 19 52 (55) 38 30 49 (55) 30 4.5 19 9　 　 VHS40 1/ 4 3/ 8 1/ 2・ ・ 3/ 8 105 (107) 38.5 70 63 22 58 44 36 63 38 5.5 24 10　 　 VHS40-06 3/ 4 1/ 2 110.4 42 75 63 (67) 22 58 (65) 44 44 63 (69) 43 5.5 26 10　 　 VHS50 3/ 4 1・ 1/ 2 134.3 53 90 76 (78) 26 76 61 53 81 50 6.5 31 12

型式 標準仕様A B D F I

Unit (mm)Dimensions

Values in ( ) are dimensions of the existing series. Dimensions in red have changed for the new series.

Model Standard specification

For application of changes6. Dimensions (2)

Face-to-face dimensions interchangeable

N Q R S T U V W X Y AA BB　 　 VHS20 5.4 8.4 27 40 75.4 31.3 25.3 53.3 30 2.3 3 12　 　 VHS30 6.5 10 36.5 53 90.9 40 33 67 41 2.3 3 14　 　 VHS40 8.5 19 43.5 70 119.4 53 44 79 50 2.8 3 19　 　 VHS40-06 8.5 19 43.5 70 123.4 55 46 79 50 2.8 4 22　 　 VHS50 11 27.5 49.5 90 152.3 71 60 108 70 3.2 4 22

型式オプション仕様

ブラケット付 サイレンサ内蔵

Unit (mm)Dimensions

ModelOption

With bracket Built-in silencer