The dual isolation and relief valve integrates two independent isolation valves and an intermediate relief port, achieving dual shutoff and safe discharge functions.
○ Port type: flange
○ PTFE packing: -34°C to 120°C (-29°F to 248°F)
○ Graphite packing: -24°C to 480°C (-75℉ to 896℉)
○ Drive mode: straight handle, handwheel
○ Nominal diameter: 1/4"~2"
○ Working pressure: 1500LB (150LB-2500LB)
○ Product material: carbon steel, stainless steel SS316, 304, 321, Hastelloy, Monel, and other alloy materials
○ The valve is made of one-piece forging
○ The valve body process and instrument piping are integrated on the same valve body
○ High-strength valve cap design with anti-blowout valve stem
○ Structure of diverse combinations of needle-shaped design ball valves and needle valves
○ An extended valve body is available for selection to achieve insulation distance. The traceability relief port comes with a plug
○ Each valve undergoes sealing and strength tests before leaving the factory
The double isolation and relief valve integrates two independent isolation valves and an intermediate relief port, achieving dual shutoff and safe discharge functions, effectively preventing medium crossover or leakage. With a compact structure and reliable sealing, it is suitable for high-pressure, toxic, flammable, or corrosive medium conditions. It is widely used in petroleum, chemical, natural gas, and power systems, ensuring safe instrument maintenance and stable system operation, and meeting stringent process and safety specifications.
The dual isolation and relief valve integrates two independent isolation valves and an intermediate relief port, achieving dual shutoff and safe discharge functions.
The single flange isolation and relief valve adopts an integrated structural design, with one end featuring a flange connection for quick installation.
The stainless steel welded flange isolating valve is made of 316 or 304 stainless steel, combining high sealing performance at the welded end and convenient disassembly at the flange end.