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National elevation 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:

Stainless 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 performance specifications

Product specifications: DN15 ~ 200
Applicable temperature:-40~180 ℃
Nominal pressure: PN 1.6/2.5MPa
Applicable medium: water, oil, air, nitric acid, acetic acid
Design and manufacture: GB/T12237
Fire test: API607
Structure length: GB/T 12221
Connecting flange: HG/T20592, GB/T9113
Inspection and test: GB/T13927, JB/T9092, GB/T26480







◆ Material of main components

Component Name Material
Model Q41F-(16~25)P Q41F-(16~25)R
Valve body ZG1Cr18Ni9Ti/CF8 ZG1Cr18Ni12Mo2Ti/CF8M
Bonnet ZG1Cr18Ni9Ti/CF8 ZG1Cr18Ni12Mo2Ti/CF8M
Sphere 1Cr18Ni9Ti/304 1Cr18Ni12Mo2Ti/316
Stem 1Cr18Ni9Ti/304 1Cr18Ni12Mo2Ti/316
Sealing ring PTFE PTFE
Packing PTFE PTFE

 

◆ Main outline connection dimension

DN(mm) L E B C T  f   N-FH H H1 W M
15 130 95 65 46 14 2 4-14 48 80 145 13
20 140/130 105 75 56 16 2 4-14 53 86 145 14
25 150/140 115 85 65 16 2 4-14 63.5 92 165 14
32 165 140 100 76 18 2 4-18 72 99 165 14
40 180/165 150 110 84 18 2 4-18 77 124 200 16
50 200/203 165 125 99 20 2 4-18 85 132 200 22
65 222/220 185 145 118 20 2 4-18 106 160 290 20
80 250/241 200 160 132 20 2 8-18 121 183 290 20
100 280/305 220 180 156 22 2 8-18 143 220 360 24
125 320/356 250 210 184 22 2 8-18 183 231 600 27
150 360/394 285 240 211 24 2 8-22 201 250 800 27
200 400/457 340 295 266 24 2 12-22 252 300 1000 27

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