the performance and application of bottom valve:

bottom valve is a kind of energy saving valve, usually installed in the bottom of the suction pump water. Restrictions on the fluid pump tube return water sources, plays not only the function. cover has a lot of water and stiffener, has played a difficult clogging, mainly used in the pipeline pump. The waterway and supporting role. Diameter have single, double disc, disc type. With flanges connection and screw connection

at the bottom of valve by valve, valve, valve cover, bushings, seals and other parts, as shown in the picture below the water from the valve cover into the body of water. Under the effect of fluid pressure, the valve disc to open water, after the stop in export pressure tube to the disc to close rapidly, the liquid will not fall back into the water, the flow pumping water and reduce water loss.

1, in order to prevent medium counter-current, shall be installed in equipment, devices and pipeline check valve;

2, the check valve generally applies to clean medium, should not be used in medium containing solid particles and viscosity is bigger;

3, usually on the level of nominal menstruation 50 mm pipe should be choose vertical lift check valve;

lift performance specification

nominal pressure: PN0. 25 mpa

nominal diameter: DN15 ~ DN350

applicable medium: water, oil, and the corrosive medium executive standard: Q/NJ3583-12 2001

test standard: GB/T13927 - 1992

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