Vacuum, Low/High Temperatures [Classic 21 Series] 2153A9903
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- Poppet construction for high dirt tolerance
- ROSS vacuum valves have larger orifices, allowing greater flow and easing the transport of air even though there is a small differential between the vacuum within the valve and atmospheric pressure outside the valve
- Can be mounted close to actuator, reducing length of pipe to be pressurized/exhausted on each cycle
- Internal/external pilot supply
- Near zero leakage
Product Information
Valve Type | Directional Control |
Series | 21 |
Application | Vacuum |
Actuation | Pneumatic |
Default Position | Normally Closed |
Return | Spring |
Thread Type | NPT |
Construction | Poppet |
Mounting | Inline |
Pilot Type | External |
Manual Override | Not Included |
Ambient Temperature | -40 to 175 F (-40 to 80 C) |
Media Temperature | -40 to 175 F (-40 to 80 C) |
Fluid Media | Filtered air |
Operating Pressure | Vacuum to 150 psig (vacuum to 10 bar) |
Pilot Supply Minimum | Equal to or greater than inlet pressure |
Valve Body Material | Aluminum |
Poppet/Spool Material | Aluminum and Stainless Steel |
Seal Material | Fluorocarbon |
Function | 3/2 Single Pilot |
Exhaust Pipe Size | 2-1/2" |
Size | 2 |
Length | 8.62 in (219 mm) |
Width | 6.33 in (161 mm) |
Weight | 15.3 lb (6.9 kg) |
Inlet Pipe Size | 2 |
Outlet Pipe Size | 2 |
Height | 9.46 in (240 mm) |
Cv (2-3) | 71.0 |
Cv (1-2) | 70.0 |