Check Valves
Fullows Check valve - FSCV series
Features
- Fixed cracking pressure
- Pressure rating up to 6000 psig @70℉(21℃)
- Temperature rating up to 375℉(191℃)with viton o-ring
- Variety of end connections
- Each and every valves are tested at the factory
Back pressure
Back pressure may be required to reseal the valves with nominal cracking pressure of 5psi or lower.
Example: For a valve with a spring having a rated cracking pressure of 25 psig (1.72 bar), the actual cracking pressure ranges between 22 and 28 psig (1.52 to 1.93bar). The re-seal pressure range would be 16 to 22 psig (1.10 to 1.52 bar).
Check valves having springs with rated crack pressure of 3 psig (0.21bar) or less may required up to 4 psig (0.28 bar) back pressure to re-seal bubble-tight.
Testing
Every check valve is factory tested for crack and reseal performance.
