Check Valve

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Technical Specifications for Check Valves

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Check valves, also known as non-return valves, are designed to allow fluid flow in one direction while a check valve, commonly known as a non-return valve, is specially constructed to allow only one way flow of fluids through a pipeline system while ensuring that there is no occurrence of backflow in the system. Shree Ganesh Valve is among the renowned non return valve manufacturer in India that ensures the safety of operations within industrial pipelines. Our products are produced using high quality raw materials and manufacturing methods that make our valves perform reliably and provide better sealing and longer life.

Our company acts as one of the leading non return valve manufacturers and supplies industrial check valves that allow one way flow of fluids while avoiding any occurrence of backflow in the system. Such type of valves helps in ensuring that the pumps, compressors and other pipeline equipment are protected from possible damage due to reverse flow of fluids.

General Specifications Design & Manufacturing Standards :

  • API 594 (for Wafer and Lug Type)
  • API 6D
  • API 602 (for Forged Steel)
  • BS 1868 (for Swing Check Valves)
  • ASME B16.34

Face-to-Face Dimensions :

  • ASME B16.10
  • End Connections
  • ASME B16.5 (Flanged)
  • ASME B1.20.1 (Threaded - NPT/BSPT)
  • ASME B16.11 (Socket Weld)
  • ASME B16.25 (Butt Weld)
  • Wafer/Lug Type (for installation between flanges)

Key Features :

  • Self-Operating: Check valves operate automatically based on fluid flow direction and pressure.
  • Low-Pressure Drop: Designed to minimize pressure loss in the system.
  • Tight Shut-off: Precision-machined seating surfaces ensure a leak-tight seal against backflow.
  • Non-Slamming Design: Some models (like dual-plate and silent check valves) are designed to close quickly and quietly, preventing water hammer.
  • Vertical & Horizontal Installation: Specify which valves are suitable for vertical, horizontal, or both installation orientations.
  • Materials of Construction (MOC)
  • A table is a great way to present this information clearly.

Types :

  • Swing Check Valve: Features a hinged disc that swings open with forward flow and closes against the seat when flow reverses.
  • Lift Check Valve: Utilizes a piston or ball that lifts off its seat with forward flow and reseats with gravity or a spring to prevent backflow.
  • Wafer Check Valve: A compact, spring-loaded design that fits between two pipe flanges. Includes single-plate, dual-plate, and silent check valve designs.
  • Piston Check Valve: A type of lift check valve where a piston slides within a body to control flow.
  • Ball Check Valve: A lift check valve where a ball is used as the closing mechanism. Ideal for high-pressure or viscous fluid applications.

Testing & Inspection :

  • API 598 (Valve Inspection and Test)
  • Check Valve Types and Features
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