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Check Valves (NRV)

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Check Valves (NRV)-image

Check valves (NRV) for preventing backflow and ensuring one-way fluid flow in your system.

Check valves, also known as non-return valves (NRVs), are designed to allow fluid to flow in one direction while preventing backflow. They operate automatically without the need for external control, using a hinged disc or ball mechanism that opens with forward flow and closes to block reverse flow. Ideal for protecting pumps and other equipment from damage caused by backflow, check valves ensure system integrity and operational efficiency by maintaining the correct direction of fluid movement.

Benefits

  • Prevents Backflow: Ensures fluid flows in only one direction, protecting equipment from potential damage caused by reverse flow.

  • Automatic Operation: Functions without the need for external control or manual intervention, providing reliable and hassle-free protection.

  • Enhances System Efficiency: Maintains proper flow direction, which helps in preserving system pressure and optimizing performance.

  • Protects Equipment: Safeguards pumps, compressors, and other components from potential damage and operational issues caused by backflow.

Standards for Check Valves (NRV)

Design Standard Swing Check Valve - BS 1868, Lift Check Valve - BS 1868 / BS 5352 / DIN Std. Wafer Type Check Valve - API 6D, Disc Type Check Valve - DIN EN 558-2
Inspection & Testing Standard BS EN 12266-1 (BS 6755-1) / API 598 / ISO 5208
Face to Face As Per ANSI B 16.10 / API 6D
End Connection Flanged end to ANSI B 16.10 / BS 10
Flanged End To ANSI B 16.5/BS 10 Table JIS / PN / DIN / IS Standard : Screwed End To ANSI B 1.20.1 (BSP/NPT), Socket Weld End To ANSI B 16.11 Buttweld End To ANSI B 16.25, Wafer Type, Flangeless, Sandwich Type
Size Range 1/2" Το 12" (DN15 Το DN600) (If higher sizes required, please do contact us)
Pressure Rating #150, #300, #600, #800, #900, #1500
Temperature Range -196 Deg C (Cryogenic application) to 550 Deg C ( High temperature)
Type of Seating PTFE/EPDM/RPTFE/GFT/PEEK/DEVLON/METAL SEATED (As applicable/As requested)

Category: Check Valves