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Gas direct buried ball 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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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

Pound Class NPS(in) L D H1 H W WT(kg)
Class150~300Lb 2" 216 51 100 165 460 40
3" 283 76 110 190 460 70
4" 305 100 130 200 460 95
6" 457 150 176 270 460 180
8" 521 201 218 330 460 280
10" 559 252 270 380 600 440
12" 635 303 300 420 600 570
14" 762 337 340 450 600 800
16" 838 387 395 530 600 1480
20" 991 489 470 600 600 2400
24" 1143 591 580 680 600 4050
28" 1346 686 640 760 600 6460
32" 1524 781 730 870 600 7200
36" 1727 876 980 980 600 8700
40" 1956 978 1010 1040 600 12500

Note: The structure length in this table is in accordance with ASME B16.10.

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