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  • 供暖固定式全焊接球阀1.jpg
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Fixed fully welded ball valve for heating

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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Cast steel 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.

◆ Main outline connection dimension

DN(mm) Pressure PN D2 L H H1
100 16/25 150 450 200 200
200 16/25 201 650 225 251
250 16/25 252 650 293 299
300 16/25 303 750 339 349
350 16/25 334 850 370 388
400 16/25 385 950 410 435
450 16/25 436 1050 492 500
500 16/25 487 1150 562 567
600 16/25 589 1350 640 663
700 16/25 684 1550 650 720
800 16/25 779 1750 775 796
900 16/25 874 1950 896 905
1000 16/25 976 2150 970 975
1200 16/25 1166 2350 1135 1133
1400 16/25 1366 2850 1345 1310

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