Swing Check Valve

  • Swing check valves ensure one-way flow and prevent backflow in the pipeline
  • Regulate fluid flow
  • Ability to maintain equipment integrity
  • Unrestricted flow path

Product Description

The swing check valve is a mechanical device designed to allow fluid flow in one direction while preventing reverse flow. Its design comprises a hinged disc or “flap” that swings freely on a hinge or pivot within the valve body. When fluid flows in the desired direction, the pressure pushes the disc open, allowing the fluid to pass through. However, when the flow reverses, the disc swings back to its closed position, creating a tight seal and preventing backflow.

Product Parameters

  • Temperature Range: -25~450℃
  • Body Materials: Carbon steel
  • Bonnet material: Carbon steel
  • Disc material: Carbon steel
  • Stem material: Stainless steel

Key Components and Operation

Swing type check valve consist of several key components, including the valve body, disc, hinge or pivot, seat, and optional features such as a counterweight or spring. The hinge allows the disc to pivot, facilitating smooth movement between the open and closed positions. The seat provides a sealing surface against which the disc rests when closed, ensuring leak-tight closure and preventing fluid leakage.

Swing Check Valve

Advantages of Swing Check Valves

1. Swing Disc Design: The defining feature of swing check valves is their swing disc mechanism, which allows the disc to swing freely on a hinge or pivot as fluid flows through the valve.

2. Unrestricted Flow Path: Wafer swing check valve offer an unobstructed flow path when the valve is fully open, minimizing pressure drop and ensuring smooth fluid passage through the pipeline.

3. Simple Design and Maintenance: The simplicity of the swing check valve’s design translates into easy installation, operation, and maintenance.

5. Effective Backflow Prevention: One of the primary functions of swing check valves is to prevent backflow, protecting equipment and pipelines from damage and contamination.