Hydraulic Pilot Operated Pressure Relief Holding Valve for Fire Protection System

Hydraulic Pilot Operated Pressure Relief Holding Valve for Fire Protection System. Hydraulic Dual-Purpose Function: Operates as both pressure relief and pressure holding valve automatically. No External Energy Required: Hydraulic pilot control system operates without external power source. Customization Supported: Offers full, minor, and flexible customization from samples or designs. Stainless Steel Material: Constructed from stainless steel for durability in water systems. ISO9001 Certified: Manufacturing process meets ISO9001 quality standards. Fire Protection Application: Specifically designed for fire protection and water supply systems. Spring Structure Design: Upgraded replacement for traditional spring-loaded safety valves. 100% Product Inspection: Every finished product undergoes visual and function inspection.