Swing check valve

Swing check valve is a flange‑connected automatic non‑return valve. Its disc swings around the hinge pin. Forward medium pressure opens the disc for flow, while backflow closes the disc by disc self‑weight to prevent reverse flow. With full‑bore passage for low flow resistance, it is available in soft‑seated and metal hard‑seated types. It can be installed horizontally or vertically, widely used in water supply‑drainage, fire‑fighting, oil and steam pipelines to protect pump equipment.
  • Detail
  • Parameters

1.png

This robust swing check valve features a free-swinging disc structure that opens automatically under medium flow pressure and closes

rapidly via gravity and backflow force, effectively safeguarding your pipeline from water hammer damage.


To meet diverse working conditions, our swing check valve series supports a wide range of specifications and customized configurations:


• Large Diameter Capability: We manufacture high-performance swing check valves with nominal sizes up to DN800, perfectly suited for

large-scale water supply and drainage networks.


• Versatile Sealing Options: Both resilient seating (soft seal for zero-leakage water service) and metal-to-metal seating (hard seal for high-

temperature or abrasive media) are available to ensure a reliable sealing effect under various pressures.


• Advanced Accessories for Custom Working Conditions: According to your specific pipeline requirements, we can equip the swing check

valve with a counte weight (to assist closing speed), a protective hood (to shield the counterweight for enhanced safety), a hydraulic

damper/oil cylinder (to eliminate slam and water hammer), or a switch/position sensor (for remote status monitoring and smart control).

2.jpg

Features

  • Free swing flap for sensitive automatic opening & closing

  • Smooth inner channel reduces fluid pressure loss

  • Full bore in full open condition

  • Reliable sealing (Resilient or Metallic) effect blocks reverse water flow steadily

  • Sturdy body structure ensures long service lifespan

  • Easy installation and trouble-free daily operation

3.jpg

Featuring a smooth full-bore flow passage, minimal flow resistance, and exceptionally stable working performance, our

swing check valve is widely utilized in drinking water transmission, municipal sewage treatment, fire protection, and

industrial circulating water systems.




Home
Enquiry