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Three-piece high platform 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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Classification:

Screw thread 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 performance specifications

Product specification: NPS 1/4 "~ 3"(DN 6~80)
Nominal pressure: PN 1.0/1.6MPa
Applicable medium: water, air, oil, acid
Applicable temperature:-20~280 ℃
Thread standard: according to BSPT/BSP/NPT/DIN/JIS/RC/G
Design and manufacture: GB/T 12237/ANSI B16.34
Inspection and test: GB/T 13927/API 598





◆ Material of main components

Component Name Material
Valve body CF8M CF8
Bonnet CF8M CF8
Sphere SS316 SS304
Stem SS316 SS304
Valve seat RTFE
Stem seal PTFE
Middle Head Pad PTFE
Packing sleeve SS316/SS304
elastic washer 17-7PH
Nut A194 8M/A1948
Bolt A193 B8M/A193 B8

 

◆ Main outline connection dimension

NPS DN L D H E
1/4" 6 72 11 51 100
3/8" 10 72 12 51 100
1/2" 15 62 15 57 105
3/4" 20 71 20 63 118
1" 25 77 25 77 128
1-1/4" 32 92 32 80 137
1-1/2" 40 101 38 92 170
2" 50 122 48 102 170
2-1/2" 65 162 64 115 215
3" 80 200 80 136 235

 

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