Vacuum, Low/High Temperatures [Classic 21 Series] 2151A2901
- 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 |
Function | 2/2 Single Pilot |
Default Position | Normally Closed |
Return | Spring |
Thread Type | NPT |
Inlet Pipe Size | 1/4 |
Outlet Pipe Size | 1/4 |
Construction | Poppet |
Mounting | Inline |
Pilot Type | External |
Manual Override | Not Included |
Size | 3/8 |
Cv (1-2) | 2.1 |
Ambient Temperature | -40 to 175 F (-40 to 80 C) |
Ambient Temperature (Celsius) | -40 to 80 |
Media Temperature | -40 to 175 F (-40 to 80 C) |
Media Temperature (Celsius) | -40 to 80 |
Fluid Media | Filtered air |
Operating Pressure | Vacuum to 150 psig (vacuum to 10 bar) |
Operating Pressure (bar) | Vacuum to 10 |
Pilot Supply Minimum | Equal to or greater than inlet pressure |
Length | 3.56 in (90 mm) |
Length (mm) | 90 |
Width | 3.11 in (79 mm) |
Width (mm) | 79 |
Height | 3.71 in (94 mm) |
Height (mm) | 94 |
Weight | 1.8 lb (0.8 kg) |
Weight (kg) | 0.8 |
Valve Body Material | Aluminum |
Poppet/Spool Material | Aluminum and Stainless Steel |
Seal Material | Fluorocarbon |