| 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) |
| 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 |
| LENGTH |
3.56 in (90 mm) |
| WIDTH |
3.09 in (78 mm) |
| HEIGHT |
3.96 in (101 mm) |
| WEIGHT |
1.8 lb (0.8 kg) |
| VALVE BODY MATERIAL |
Aluminum |
| POPPET/SPOOL MATERIAL |
Aluminum and Stainless Steel |
| SEAL MATERIAL |
Fluorocarbon |
