27 Series Pilot Operated Check Valves 2778D4904W
- Poppet construction for near zero leakage
- Manual or remote trapped pressure release when pressure is removed from the Blowdown Signal Port (BP)
- Inline Mounting
2778D4904W
$598.75
Quantity
Estimated Ship Date: 09/03/2026
*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
| Series | 27 |
| Construction | Poppet |
| Ports 1-2 Flow | 3.2 Cv (3149 Nl/min) |
| Length | 3.38 in (85.9 mm) |
| Width | 2.38 in (60.5 mm) |
| Height | 5.08 in (129 mm) |
| Weight | 4.2 lb (1.9 kg) |
| Valve Function | 2/2 Pneumatic PO Check |
| Default | Normally Closed |
| Actuation | Electrical |
| Pressure Release Type | Remote Pressure Relief |
| Port 1 Size | 1/2" |
| Port 2 Size | 1/2" |
| Thread Type | NPT |
| Voltage | 24 VDC |
| Power Consumption | 4.5 watts |
| Electrical Connection | 4-Pin Micro |
| Mounting | Inline |
| Ambient Temperature Range | 40 to 175 F (4 to 80 C) |
| Media Temperature Range | 40 to 175 F (4 to 80 C) |
| Flow Media | Filtered Air |
| Operating Pressure | 15 to 150 psig (1 to 10 bar) |
| Valve Body Material | Cast Aluminum |
| Poppet Material | Acetal and Stainless Steel |
| Seal Material | Buna-N |
| Safety Category | Category 1 |
| PL Rating | PL c |
| Safety Integrity Level | SIL 2 |
| DGUV Certification | No |
| CE Certification | No |
| EAC Declaration | Yes |
| CSA/UL Certification | No |
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27 Series Pilot Operated Check Valves
2778D4904W
Contact Us for a 3D Model
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27 Series Pilot Operated Check Valves
2778D4904W
Contact ROSS Controls for Ordering Information
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