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  • 水泵控制阀1.jpg
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Water pump control valve

A valve is a mechanical device that controls the flow rate, flow direction, pressure, temperature, etc. of a flowing fluid medium. Valves are the basic components in piping systems. Valve fittings, like pumps in technology, are often discussed as a separate category.

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Classification:

Ductile iron valve series

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Description


A valve is a mechanical device that controls the flow rate, flow direction, pressure, temperature, etc. of a flowing fluid medium. Valves are the basic components in piping systems. Valve fittings, like pumps in technology, are often discussed as a separate category. The valve may be operated manually or with a hand wheel, handle or pedal, and may also be controlled to vary the pressure, temperature and flow rate of the fluid medium. The valve can perform continuous or repeated operations on these changes, such as safety valves installed in hot water systems or steam boilers. In more complex control systems, automatic control valves are used as required by external inputs (I. e., to adjust the changing set point of the flow through the pipeline). The automatic control valve does not need to be manually operated according to its input and setting, so that the valve can accurately control the various requirements of the fluid medium. Valves can also be divided into cast iron valves, cast steel valves, stainless steel valves, chromium molybdenum steel valves, chromium molybdenum vanadium steel valves, dual phase steel valves, plastic valves, non-standard customized valve materials, etc.

◆ Product overview

700X pump control valve, is a kind of installed in high-rise buildings and other water supply system of the pump outlet, to prevent the backflow of the medium backflow valve. When the water pump is about to stop the water supply, the valve will slowly close about 90% to prevent the water hammer and water hammer caused by the sudden stop of the pump. When the pump is completely stopped, the valve is completely closed again to prevent the backflow of the pumped water and effectively protect the pump from the impact of backflow and reverse. The product is an essential protection device for the pump outlet. The valve is streamlined design, through the solenoid valve to achieve accurate opening and closing, the use of safe and reliable, effectively prevent water hammer and water hammer sound, long service life, easy installation and maintenance.

◆ Typical installation diagram

◆ Main outline connection dimension

Nominal diameter DN 50 65 80 100 125 150 200 250 300 350 400 450 500 600 700 800
 L     PN1.0MPa 215 240 255 290 310 360 430 510 600 630 700 742 775 925 1100 1210
PN1.6MPa 215 240 255 290 310 360 430 510 600 630 700 742 775 925 1100 1210
H1 152 145 167 232 288 342 413 502 600 600 685 685 880 1050 1225 1400
H 250 250 271 375 455 502 636 781 913 913 1035 1035 1300 1535 1793 2022

Note: The structure length in this table is based on CJ/T 167 standard.

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