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Hydraulic Slow Closing Butterfly Check Valve

Short Description:

  • Nominal Size: NPS 12"~NPS 160"
  • Pressure Class: ANSI Class 125-150LB
  • Operating Temperature: -10℃~+100℃
  • Design Standard: API 609, ASME B16.34
  • End Connection: Flange
  • Operation: Hydraulic Actuator
  • Body / Bonnet Material: WCB, CF8/CF8M, LCB/LCC, A890 4A, A890 5A, A890 6A and Monel
  • Test Standard: API 598
  • Product Detail

    Product Tags

    Product Description

    1. Hydraulic Slow Closing Butterfly Check Valve adopts butterfly check structure with hydraulic drive cushioning mechanism.

    2. Automatically opens under forward flow, closes in fast close and slow close two stages upon pressure loss and backflow, reducing water hammer surge.

    3. Can be equipped with oil pump station to achieve control logic, mainly for pump system protection.

    4. Widely used in water supply, pump stations and power plant circulating water pipelines.

    Features & Benefits

    1. Two stage fast and slow closing effectively suppresses water hammer, protecting pump and pipeline.

    2. Hydraulic cushioning drive ensures smooth opening and closing.

    3. Built in check function prevents medium backflow.

    4. Lighter weight than traditional swing check valve in large sizes.

    5. Local manual operation available for maintenance.

    6. Suitable for large size water supply and drainage pump station systems.


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