| Working pressure: | |
|---|---|
| Working temperature: | |
| Impact/Vibration resistance: | |
| Type of actuation: | |
| Port size: | |
| Thread type: | |
Product Description
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.
Product 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 |
| 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) | |
| 1→2(P→A) | 2→3(A→P) | |
| 1 | 210 | 235 |
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
| Fluide passage/Port | P | A | R |
| N.C. | Inlet side | Outlet side | EXH side (2 port: Plug) |
| N.O. | EXH side (2 port: Plug) | Outlet side | Inlet side |
Take sufficient precations and confirm safety when changing the flow path and restarting after the changes.
2. Other
M5 size hole at the left side of the adapter plate is a breathing port for spool valve. Do not plug or tighten it.
Main Dimensions
Catalogue PDF
English
