Silencing check valve
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  • Silencing check valve

Silencing check valve

Model:

Hc42B

Specifications:

DN40-DN600

Applicable temperature:

0-80 ℃

Applicable medium:

Water, sewage, oil


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  • Product Description
  • Detailed parameters
  • The muffler check valve is mainly used for water supply, drainage, fire protection, HVAC system, can be installed at the pump outlet to prevent the media back and water hammer damage to the pump.

    The muffler check valve is mainly composed of valve body, valve seat, reverse fluid, valve disc, bearing and spring and other major parts. The internal design is streamlined and the pressure loss is very small. The opening and closing stroke of the valve is very short, and it can be quickly closed when the pump is stopped, preventing huge water hammer sound, and has the characteristics of silent closing. The muffler check valve is usually installed at the outlet position of the water pump in the pipeline to prevent damage caused by the backflow of the high-speed impact water pump when it stops running. The opening and closing part of the valve is a disc-shaped disc, which belongs to the one-way valve. The valve only allows the medium to flow in the same direction. Its main function is to prevent the medium from backflow and reduce the impact of hydraulic power.

    The muffler check valve is a new type of valve introduced in recent years. The valve flap rotates along the center line of the valve body to complete the closing work. It has novel structure, small size, light weight for installation and maintenance, and is suitable for large-diameter use. It is generally installed on a drainage pipe. When working, the valve flap is opened under the pressure generated by the medium flow in one direction. On the contrary, when the medium flows back in reverse, the pressure coincides with the valve flap to produce a certain effect with the valve seat, cutting off the medium flow and preventing the medium from flowing back. Small fluid resistance, reliable sealing, smooth opening and closing, wear resistance, long service life, oil pressure, slow closing is not affected by the medium, and has the characteristics of good energy saving effect.


    Warm Tip: All text, data and pictures in this article are only for reference. Need to see moreMicro-resistance slow closing check valveFor details of performance parameters, structural size parameters, prices, etc., or for high-quality printed samples, pleaseContact Us


     

  • Outline and connection dimension of silencing check valve

    DN Connection dimensions DN Connection dimensions
    1.0MPa 1.6MPa
    L D K b N-$ D L D L b N-$ D
    40 112 145 110 18 4-18 40 112 145 110 18 4-18
    50 120 160 125 20 4-18 50 120 160 125 20 4-18
    80 150 195 160 22 8-18 80 150 195 160 22 8-18
    100 165 215 180 24 8-18 100 165 215 180 24 8-18
    125 190 145 210 26 8-18 125 190 245 210 26 8-18
    150 210 280 240 26 8-22 150 210 280 240 26 8-22
    200 255 335 295 28 8-22 200 255 335 295 30 12-22
    250 310 390 350 28 12-22 250 310 405 355 32 12-26
    300 320 440 400 28 12-22 300 320 460 410 32 12-26
    350 380 500 460 30 16-22 350 380 520 470 36 16-26
    400 405 565 515 32 16-26 400 405 580 525 38 16-30
    450 430 615 565 32 20-26 450 430 640 585 40 20-30
    500 450 670 620 34 20-26 500 450 715 650 42 20-33
    600 510 780 725 36 20-30 600 510 840 770 48 20-36