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Back-presure valves


MAIN FEATURES
This series safety valve is diaphragm valve.
It works only when the fluid pressure is over than setting pressure of the valve, which makes sure the fluid can not go
to the discharge piping due to inertia of fluid or siphon when the metering pump is at suction stroke.


Model Material Dia (mm) Pressure (Mpa) Dimension Connection size
D(mm) H(mm)
ALP-S20/10 304/316 20 2.5-10 89 200 Rc3/4"
ALP-S25/10 304/316 25 2.5-10 89 205 Rc1"
ALP-S32/10 304/316 32 2.5-10 124 260 Rc1 1/4"
ALP-S40/10 304/316 40 2.5-10 155 315 Rc1 1/2"
ALP-S50/10 304/316 50 2.5-10 165 385 Rc2"


Model Material Dia (mm) Pressure (Mpa) Dimension Connection size
D(mm) H(mm)
ALP-BBS10/0.3 304/316 10 0.1-0.7 65 95 Welding
ALP-BBS15/0.3 304/316 15 0.1-0.7 65 95 Welding
ALP-BBS25/0.3 304/316 25 0.1-0.7 65 95 Welding
ALP-BBS40/0.3 304/316 40 0.1-0.7 65 115 Welding

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