691F Series High Flow Poppet Check Valves
Features & Benefits
- Prevents back flow
- Protects valuable equipment
- 316 stainless steel components
- GYROLOK® compression ends provide leak-free, reusable connections
- Recommended for severe service, including CNG applications
- High Cv flow rates
- Blowout-proof o-ring design
- Withstands high opening shocks without damage
- Special High Tolerance NPT Thread
Technical Data
Body Material: 316 stainless steel
Operating Pressure: 5000 psig @ 70° F [345 bar @ 21° C]
Operating Temperature Range: −65° F to +275° F [−54° C to +135° C]
Differential Cracking Pressures: 1/3 psig to 50 psig [0 to 3 bar]
Cv Factors: 0.620 to 6.0