Three-Way Pressure Sustaing/Relief Control Valve: RAF 83B
I.T.G. Innovative Technologies Group Ltd is the exclusive distributor of Raphael Valves Industries Ltd products on the territory of the Republic of Azerbaijan and Georgia.
The RAF 83B are piloted hydraulic valves activated by line pressure. The pilot valve has a spring-loaded membrane, which is exposed to the upstream pressure. The valve is normally closed. Only when the line pressure rises above a preset point, the RAF 83B opens to relieve the excessive pressure downstream without causing surge hazards. When the line pressure drops, the RAF 83B re-closes.
Typical Applications:
Use RAF 83B to maintain constant upstream pressure and to avoid undesirable high pressure. This protection is required for most irrigation devices, domestic and industrial utilities.