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H71 clamp lift check valve
H71 clamp lift check valveH71 clamp lift check valveH71 clamp lift check valveH71 clamp lift check valveH71 clamp lift check valve
  • H71 clamp lift check valve
  • H71 clamp lift check valve
  • H71 clamp lift check valve
  • H71 clamp lift check valve
  • H71 clamp lift check valve

H71 clamp lift check valve

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Overview of the H71 clamp lift check valve: the valve
is composed of the valve body, valve disc, spring, etc., horizontally or vertically installed in the pipeline system to prevent the backflow of the medium, with short structure, small volume, light weight; The valve flap closes quickly, and the water hammer pressure is small; Smooth flow channel, small fluid resistance; Sensitive action, good sealing performance.
1 Design specifications according to JB/T8937 API594 API6D2
structural length according to JB/T8937 API594 API6D DIN32023
4 Valve inspection and experiment according to GB/T13927 JB/T9092 API598 Two
, H71 clamp lift type check valve main technical parameters:

Model NumberNominal pressure PN(MPa)Test pressure PS(MPa)Operating temperature (° C)Applicable medium
HousingSeal
H71W-16T1.62.41.76200 or lessWater, steam, oil products, etc
H71H-25Q2.53.752.75235 or less
H71W-25H300 or less
H71W-25P200 or lessCorrosive media such as nitric acid
H71W-40H4.06.04.4300 or lessWater, steam body, oil products, etc
H71W-40P200 or lessCorrosive medium such as nitric acid

H71 pair clamp lift check valve main parts materials:

Specification ModelBodyFlapSpring
H71H-16Q, H71H-25QQT400-152550CrCA
H71W-25H, H71W-40H2Cr131Cr131Cr18Ni9Ti
H71W-16P, H71W-25PZG1Cr18Ni9Ti1Cr18Ni9Ti1Cr18Ni9Ti

Hydromechanical properties: fluid resistance coefficient, flow coefficient and opening pressure of H71 clamp lift check valve:

Nominal diameterFluid resistance coefficient when valve is fully openThe coefficient of water flow when the valve is fully opened at room temperatureFlow direction of fluid
DNNPSKvm3= / hCVU.SCVU.Kwriteleft-
Open pressure approximation KPa
151/26.42.63.02.5322.5
20Three quarters of5.16.47.56.3322.5
2544.112.614.812.3322.5
321 1/44.119.723.119.3322.5
401 1/23.829.563.928.9322.5
5023.554.699.963.5322.5
652 1/23.585.415083.7322.5
8033.2128286125322.5
10042.8244286249322.5
12552.9375439368312.2
15063.1522611512312.2
20083.29151070897312.2

H71 clamp lift check valve main connection size

Nominal diameter DN1520253240506580100125150200
Structural lengthLong series2531.535.5404556637180110125160
Short Series1619222831.54046506090105140


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Product Description

H71 clamp lift check valve

H71 clamp lift check valve

H71 clamp lift check valve

H71 clamp lift check valve

H71 clamp lift check valve

H71 clamp lift check valve

H71 clamp lift check valve

H71 clamp lift check valve

H71 clamp lift check valve

H71 clamp lift check valve


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