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VGA342 Series 3 Port Air Operated Valve

Series VGA342 3 port air operated valve and can be used as a selector or divider valve (external pilot). Actuation is changeable between Normally Closed, Normally Open, or external pilot types.

Model:
VGA342
Brand:
VPC Pneumatic

Working pressure:	0.2 to 0.9 MPa
Working temperature:	-10 to 50 ℃
Impact/Vibration resistance:	150/50 m/s²
Type of actuation:	Normally open/Normally closed (Changeable)
Port size:	1/2, 3/4, 1
Thread type:	Rc, G, NPT, NPTF
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Product Description

■ Product Feature

Series VGA342 3 port air operated valve and can be used as a selector or divider valve (external pilot). Actuation is changeable between Normally Closed, Normally Open, or external pilot types.

VGA342 is possible to use in a vacuum or under low pressure. No lubrication is required.

■ Symbol

pneumatic pilot valve

Product Specification

■ Specification

Acting type	Air operated type
Type of actuation	N.C./N.O. (Changeable)
Return mechanism	Air + Spring
Working medium	Air
Working pressure	0.2 to 0.9 MPa
Pilot pressure	Same as operating pressure
Working temperature	–10 to 50°C (No freezing)
Lubrication	Not required (Use turbine oil Class 1 lSO VG32, if lubricated.)
Impact/Vibration resistance	150/50 m/s²

■ Flow Characteristics

Port size	Flow Characteristics
	1→2(P→A)			2→3(A→R)			2→1(A→P)			3→2(R→A)
	C[[dm³/(s·bar)]	b	Cv	C[[dm³/(s·bar)]	b	Cv	C[[dm³/(s·bar)]	b	Cv	C[[dm³/(s·bar)]	b	Cv
1/2	26	0.38	7	27	0.37	7.4	27	0.36	7.3	25	0.37	6.8
3/4	38	0.3	9.8	38	0.32	9.8	40	0.22	9.8	40	0.2	9.6

Port size	Effective area (mm²)
Port size	1→2(P→A)	2→3(A→P)
1	210	235

▲ Caution

1. Change of fluid passage

Please note that the pressure in the valve should be exahusted when changing the fluid passage. Loosen the hexagon socket head cap screw M4 x 0.7. Rotate the NC/NO switching plate and align the desired passage symbol NO/NC with the ◀ mark on the adapter plate. However, the X symbol is not applicable. For piping, refer to the table below.

Screw tightening torque M4: 1.4 N·m

VGA342 3 Port Air Operated Valve