Vacuum, Low/High Temperatures [Classic 21 Series] 2151B4904
- 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
2151B4904
Quantity
Estimated Ship Date: 12/03/2024
*Estimated Ship Date based on standard manufacturing times for quantities of 10 or less. Shipments will be made anywhere in the United States.
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 |
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 |
Width | 3.11 in (79 mm) |
Valve Body Material | Aluminum |
Poppet/Spool Material | Aluminum and Stainless Steel |
Seal Material | Fluorocarbon |
Size | 3/4 |
Inlet Pipe Size | 1/2 |
Outlet Pipe Size | 1/2 |
Length | 4.56 in (116 mm) |
Height | 4.42 in (112 mm) |
Weight | 4.5 lb (2.0 kg) |
Cv (1-2) | 6.9 |