Vacuum, Low/High Temperatures [Classic 21 Series] 2153A3913

- 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 | 3/2 Single Pilot |
| Default Position | Normally Closed |
| Return | Spring |
| Thread Type | NPT |
| Inlet Pipe Size | 3/8 |
| Outlet Pipe Size | 3/8 |
| Exhaust Pipe Size | 1/2" |
| Construction | Poppet |
| Mounting | Inline |
| Pilot Type | External |
| Manual Override | Not Included |
| Size | 3/8 |
| Cv (1-2) | 3.4 |
| Cv (2-3) | 4.4 |
| 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 | 3.09 in (78 mm) |
| Width (mm) | 78 |
| Height | 3.96 in (101 mm) |
| Height (mm) | 101 |
| 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 |
