Pressure Safety Valve with Changeover Valve (Double Control)
A dual-control overpressure protection system consisting of a changeover valve paired with two spring-type safety valves. The double-control configuration allows both inlet and outlet switching to be managed simultaneously through linked valve group control, enabling safe replacement, repair, or inspection of either safety valve without interrupting equipment operation. Suitable for a wide range of media and service conditions, with flange connections available to national or international standards.
- Three-way flow path design with two identical safety valves — one active, one on standby
- Double switching valve group linkage control for simultaneous inlet and outlet management
- Hot-swap switching with no shutdown required, ensuring continuous overpressure protection
- Low flow resistance to maintain sufficient discharge capacity at all times
- Relief valve installed beneath each safety valve for safe medium discharge prior to disassembly
- Balance valve included for high pressure classes (≥ 600 lb) for light and easy operation
- Reliable sealing integrity maintained even after repeated switching cycles
- Simple, fast, and safe reversing system operation
- Wide operating temperature range covering both cryogenic and high-temperature service
A dual-control overpressure protection system consisting of a changeover valve paired with two spring-type safety valves. The double-control configuration allows both inlet and outlet switching to be managed simultaneously through linked valve group control, enabling safe replacement, repair, or inspection of either safety valve without interrupting equipment operation. Suitable for a wide range of media and service conditions, with flange connections available to national or international standards.
- Three-way flow path design with two identical safety valves — one active, one on standby
- Double switching valve group linkage control for simultaneous inlet and outlet management
- Hot-swap switching with no shutdown required, ensuring continuous overpressure protection
- Low flow resistance to maintain sufficient discharge capacity at all times
- Relief valve installed beneath each safety valve for safe medium discharge prior to disassembly
- Balance valve included for high pressure classes (≥ 600 lb) for light and easy operation
- Reliable sealing integrity maintained even after repeated switching cycles
- Simple, fast, and safe reversing system operation
- Wide operating temperature range covering both cryogenic and high-temperature service