Bellow Seal Valve
F.R.I Bellow Seal Valves can be either a gate or a globe valve, designed for applications where full stem sealing (Zero Leakage) is required.
Examples of such applications are:
- Vacuum service: where a vacuum pump is continuously extracting air from a pipeline. In this application, the Bellow Seal Valve is the only solution to prevent outside air to leak into the pipeline through the stuffing box.
- Hazardous fluids: like chlorine, hydrogen, ammonia and others
- Costly Fluids: in some applications, leaks need to be avoided simply because of the high cost of the fluid.
- Environment Protection Standards.