• SJM744X, SJM644XX * Quick-opening mud valve
  • SJM744X, SJM644XX * Quick-opening mud valve
  • SJM744X, SJM644XX * Quick-opening mud valve
SJM744X, SJM644XX * Quick-opening mud valve
SJM744X, SJM644XX * Quick-opening mud valve
SJM744X, SJM644XX * Quick-opening mud valve
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SJM744X, SJM644XX * Quick-opening mud valve

SJM744X, SJM644X diaphragm type hydraulic, pneumatic angle type quick opening mud valve, is a kind of hydraulic source or pneumatic source for the actuator of the angle type cut-off valve. It is usually installed in rows on the outer wall of the bottom of the sedimentation tank to remove the sediment and dirt from the bottom of the tank. The valve is divided into two chambers by nylon reinforced rubber diaphragm, which is connected to hydraulic or pneumatic source, and controlled by electric or manual two-position four-way reversing valve to realize rapid mud discharge. The valve will replace the piston diaphragm, no movement friction, more suitable for mud and other granular media, greatly improving the service life of the valve.

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Product Details


SJM744X, SJM644XX * Quick-opening mud valve

Product overview

SJM744X, SJM644X diaphragm type hydraulic, pneumatic angle type quick opening mud valve, is a kind of hydraulic source or pneumatic source for the actuator of the angle type cut-off valve. It is usually installed in rows on the outer wall of the bottom of the sedimentation tank to remove the sediment and dirt from the bottom of the tank. The valve is divided into two chambers by nylon reinforced rubber diaphragm, which is connected to hydraulic or pneumatic source, and controlled by electric or manual two-position four-way reversing valve to realize rapid mud discharge. The valve will replace the piston diaphragm, no movement friction, more suitable for mud and other granular media, greatly improving the service life of the valve.

Technical parameters

Nominal pressure 0.6MPa、1.0MPa
Nominal diameter 80~400mm
Minimum driving pressure 0.15MPa
Applicable media Water, sewage
Drive medium Clear water, gas
Applicable temperature 0~80℃
Flange standard Gb/t 17241.6 gb/t 9113
Test standard GB/T 13927 API598

Typical Installation Schematic

Main Parts and Components Materials

Part Name Valve body, bonnet Diaphragm pressure plate, valve disc Stem Diaphragm
Materials Cast iron, ductile iron, carbon steel Ductile iron, bronze Stainless Steel Nylon reinforced rubber

Main connection dimension unit mm

DN 100 150 200 250 300 350 400
H 370 440 530 615 785 880 970
L1 160 190 225 260 280 315 340
L2 120 150 190 220 260 300 340

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