Isolate Valve V-025SV
V-025SV isolate valve is to be connected to the inlet of rotary vane pumps.
It is an automatic valve equipped with cut valve and vent valve functions and prevents backflow of pump oil due to power outage or improper operation of the vacuum systems.
Components
Features
- When the rotary vane pump stops, the vacuum system is automatically cut off (vacuum locked).
The pump side is then vented to prevent the pump oil from flowing back into the vacuum system. - Since the valve uses the vacuum created by the pump as the drive source, it does not require compressed air or pipes like conventional automated valves. (The valve does not open when the pump is not operating.)
- This valve does not require any special control circuit. It can be controlled by interlocking the power supply for the built-in solenoid valve with the motor for the pump.
Specifications
| Type | V-025SV-1AC | V-025SV-2AC | |
|---|---|---|---|
| Range of operating pressure | Atmospheric to 10-2Pa | ||
| Leak amount | <5x10-7Pa·m3/sec | ||
| Conductance | 420 L/min (Values for 20℃ air in molecular flow range) | ||
| Maintenance interval | 30,000 cycles or 1 year | ||
| Main material | Fluoro rubber O ring: Main seal, bonnet seal, and shaft Nitryl rubber: Piston, screw seal SUS304: Body, valve, spring Aluminum alloy: Base, piston, air pipe Silicon grease: Shaft seal lubricant |
||
| Connection flange | NW25 flange | ||
| Fluid used | Atmosphere or gas (excluding corrosive gas) | ||
| Usage environment | Ambient temperature 10℃ to 40℃ | ||
| Solenoid | Rated voltage | 100V AC (50/60Hz) | 200V AC (50/60Hz) |
| Starting current | 0.03A | 0.015A | |
| Holding current | 0.03A | 0.015A | |
| Power consumption | 3W | ||
| Coil insulation Class | Class B (130℃) | ||
| Dimensions | See the Dimensions diagram | ||
| Weight | 1kg | ||
Dimensions
Option
Parts Number
| Parts Number | Model | Description | Remarks | Code |
|---|---|---|---|---|
| 0190-12616 | V-025SV-1AC | Isolate Valve | With NW25 flange, 100V AC | 31095 |
| 0190-12624 | V-025SV-2AC | Isolate Valve | With NW25 flange, 200V AC | 31096 |
| Solenoid valve cover | Option (require special arrange) | 31098 |