Inline Single Pilot Operated Check Valve (Side Pilot)
Side-pilot inline single pilot operated check valve, covering the widest port range in the single POC range — from 1/4" to 1" BSPP. The pilot connection is always 1/4" BSPP regardless of work port size, simplifying the pilot circuit design across multiple installation sizes.
Note that max pressure reduces on larger port sizes (350 bar at 1/4", down to 220 bar at 1") — refer to the datasheet for per-size ratings.
Key Specifications
- Type: Inline single pilot operated check valve, side pilot port
- Work port sizes (V1-V2): 1/4", 3/8", 1/2", 3/4", 1" BSPP
- Pilot port (PIL): 1/4" BSPP (all sizes)
- Max. pressure: 350 bar (1/4") | 300 bar (3/8"–1/2") | 250 bar (3/4") | 220 bar (1")
- Max. flow: 20 l/min (1/4") up to 120 l/min (1")
- Pilot ratio: 8.5:1 (1/4") down to 3.5:1 (1") — see datasheet
- Cracking pressure: 1 bar (standard) | 3 bar or 8 bar on request
- Seal options: NBR 70 Shore A (standard)
- External finish: Zinc plated
- Fluid temperature: -20°C to +90°C
| Thread V1-V2 | Thread PIL | Max. Pressure (bar) | Max. Flow (l/min) | Pilot Ratio |
| 1/4 BSPP | 1/4 BSPP | 350 | 20 | 8.5:1 |
| 3/8 BSPP | 1/4 BSPP | 300 | 30 | 6:1 |
| 1/2 BSPP | 1/4 BSPP | 300 | 45 | 5.5:1 |
| 3/4 BSPP | 1/4 BSPP | 250 | 80 | 4:1 |
| 1" BSPP | 1/4 BSPP | 220 | 120 | 3.5:1 |
