Swing Check Valve

Swing check valves use the flow of the medium to open and close automatically. The disc rotates on a hinge pin, lifting into the valve body cavity when flow moves forward and sealing back onto the seat when flow stops or reverses. It is typically installed on horizontal pipelines.
Specific Applications
Swing check valves work in oil and gas pipelines, refinery systems, petrochemical plants, boiler feedwater lines, HVAC circulation, water treatment equipment, and industrial fluid transfer systems where backflow protection is required.
Key Features
Automatic Backflow Prevention – This swing check valve's disc rotates on a hinge pin, lifting open with forward flow and sealing shut when flow stops or reverses. No external controls needed.
Piping‑Ready Design – Low pressure drop. Typically installed on horizontal pipelines. The piping swing check valve configuration ensures reliable operation in long‑distance and plant piping systems.
Durable Swing‑Arm Construction – Spherical connection between arm and disc allows 360° position compensation. No external leakage except the gasketed middle flange. Sealing surfaces hardfaced with iron‑based alloy or Stellite – excellent wear, heat, and corrosion resistance.
Material & Connection Flexibility – Body in carbon steel, stainless steel (A105N, F304, F316, F316L), or special alloys. End connections: flanged, threaded, or welded to DIN, ANSI, JIS, BS, or GB.
Tested – Optional factory tests include backflow sealing, pressure resistance, and full performance checks before shipment.
Quality Certification
We hold ISO 9001, ISO 14001, and ISO 45001 certifications, plus a special equipment production license (TS). Our products are made to API, ANSI, JIS, ISO, BS, JB, and GB standards. This covers material checks, non‑destructive testing, precise measurements, and valve strength/sealing performance.
Custom Manufacturing Services
You send us a drawing or sample, and we review the requirements. Then we confirm the drawing and give you a quote — faster if you provide a 3D model. After order confirmation, we schedule batch production.