3-Port Valve for Releasing Residual Pressure With Keyhole (Single Action) VHS20/30/40/50

Brand :

SMC

Caution

Refer to the catalog for details on product specifications.
The products shown in the image are representative. CAD data is not supported for some model numbers.

Product Description

Conforming To OSHA Standard, Pressure Relief 3-Port Valve (Single Action) With Locking Holes by SMC.
[Features]
· The safety-measure manually operated valve can be used to prevent accidents caused by residual pressure in pneumatic lines.
· Designed so that the supply and exhaust status of the air flow can be checked at a glance.
· When residual pressure is being released, the valve handle can be locked in position to prevent accidental operation.

Conforming To OSHA Standard, Pressure Relief 3-Port Valve (Single Action) With Locking Holes VHS20/30/40/50 Series Details

Conforming To OSHA Standard, Pressure Relief 3-Port Valve (Single Action) With Locking Holes VHS20/30/40/50 Series: product images

Conforming To OSHA Standard, Pressure Relief 3-Port Valve (Single Action) With Locking Holes VHS20/30/40/50 Series Specifications

Model Number Notation

Model number example

Standard specification

Model		VHS20	VHS30	VHS40	VHS40-06	VHS50
Applicable fluids		Air
Ambient temperature and working fluid temperature		-5 to +60°C (no freezing)
Proof pressure		1.5 MPa
Operating pressure range		0.1 to 1.0 MPa
Handle switching angle		90°
Color of exterior (standard)		Handle: red Body: urban white
Weight	A (Handle, bonnet: flame-retardant PBT)	76 g	127 g	247 g	293 g	532 g
Weight	B (Handle, bonnet: aluminum)	92 g	156 g	301 g	349 g	630 g

Flow rate characteristics

Model	Piping connection port diameter		Flow rate characteristics
	IN, OUT	EXH	IN → OUT			OUT → EXH
	IN, OUT	EXH	C (dm³/(s-bar)	b	Cv	C (dm³/(s-bar)	b	Cv
VHS20	1/8	1/8	2.4	0.43	0.65	2.5	0.39	0.69
VHS20	1/4	1/8	3.3	0.40	0.88	3.1	0.51	0.84
VHS30	1/4	1/4	6.4	0.45	1.7	6.2	0.38	1.7
VHS30	3/8	1/4	8.3	0.41	2.3	7.0	0.41	1.9
VHS40	1/4	3/8	7.3	0.49	2.0	8.5	0.35	2.3
	3/8		10.9	0.45	3.0	11.6	0.40	3.1
	1/2		14.2	0.39	3.8	13.3	0.43	3.6
VHS40-06	3/4	1/2	18.3	0.31	5.0	17.7	0.37	4.8
VHS50	3/4	1/2	23.8	0.41	6.4	21.8	0.41	5.9
VHS50	1	1/2	31.9	0.33	8.6	23.5	0.44	6.4

Structural Drawings

VHS20-A to VHS50-A structural drawings

VHS20-B to VHS50-B structural drawings

Built-in silencer (option): structural drawing

Component Parts

Number	Part name	Materials		Additional notes
Number	Part name	VHS20 to 50-A	VHS20 to 50-B	Additional notes
1	Body	ADC12		Urban white
2	Bonnet	Flame-retardant PBT (UL-94 standard V-0 equivalent)	ADC12	Urban white
3	Handle	Flame-retardant PBT (UL-94 standard V-0 equivalent)	ADC12	Red
4	Cam ring	POM		-
5	Spool	PBT		-
6	Spool O-ring	H-NBR		-
7	Spool spring	Stainless steel		-
8	Sleeve	POM		-

*The VHS Series cannot be disassembled.

Option part numbers

Model	Bracket assembly part no. ^{Note 1)}	Silencer assembly part no. ^{Note 2)}
VHS20	VHS20PW-180AS	VHS20PW-190AS
VHS30	VHS30PW-180AS	VHS30PW-190AS
VHS40	VHS40PW-180AS	VHS40PW-190AS
VHS40-06	VHS40PW-180-06AS	VHS40PW-190-06AS
VHS50	VHS50PW-180AS	VHS50PW-190AS

*Note 1) Bracket: 1 pc., Mounting screws: 2 pcs.
*Note 2) Element (11), element O-ring (12), element cover (13) 1 pc. of each

Conforming To OSHA Standard, Pressure Relief 3-Port Valve (Single Action) With Locking Holes VHS20/30/40/50 Series Dimensions

(Unit: mm)

Conforming To OSHA Standard, Pressure Relief 3-Port Valve (Single Action) With Locking Holes VHS20/30/40/50 Series: dimensional drawing

External Dimensions

Model	Standard specification
	P1	P2	A	B	C	D	E	F		G	H	I	J	K	L	M
	P1	P2	A	B	C	D	E	A type	B type	G	H	I	J	K	L	M
VHS20	1/8, 1/4	1/8	66.4	22.3	40	37.5	14	46.6	47.2	33.6	28	43	24	4.5	14.8	9
VHS30	1/4, 3/8	1/4	80.3	29.4	53	49	19	52		38	30	49	30	4.5	19	9
VHS40	1/4, 3/8, 1/2	3/8	104.9	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	22	58		44	44	63	43	5.5	26	10
VHS50	3/4, 1	1/2	134.3	53	90	76	26	76		61	53	81	50	6.5	31	12

Model	Option specification
	With Bracket										Built-in silencer
	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