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  • 角式法兰截止阀1.jpg
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Angle flange globe 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.

◆Technical parameters

Model J44H/Y/W-16/25C/P/R
Nominal pressure (PN) 16 25
Shell test (MPa) 2.4 3.8
High pressure seal test 1.8 2.8
Low pressure gas seal test 0.6 0.6
Upper seal test 0.6 0.6
Applicable temperature (≤ ℃) C:425P/R:550
Applicable media C: water/steam/oil P: nitric acid R: acetic acid

 

◆ Main parts materials

Part Name Materials
Body/Bonnet Stainless Steel
Disc Stainless Steel
Sealing ring Stainless Steel
Stem Stainless Steel
Packing flexible graphite

 

◆ Main outline connection dimension

DN L D D1 D2 b Z-Fd D0 H (off) H (ON)
PN16 PN25 PN16 PN25 PN16 PN25 PN16 PN25 PN16 PN25
15 90 95 95 65 65 45 45 16 16 4-14 4-14 100 240 265
20 95 105 105 75 75 55 55 16 18 4-14 4-14 100 245 270
25 100 115 115 85 80 65 65 18 18 4-14 4-14 120 250 275
32 105 135 135 100 100 78 78 18 18 4-18 4-18 140 260 290
40 115 145 145 110 110 85 85 18 18 4-18 4-18 140 290 325
50 125 160 160 125 125 100 100 18 20 4-18 4-18 160 300 335
65 145 180 180 145 145 120 120 18 22 8-18 8-18 180 355 400
80 155 195 195 160 160 135 135 20 24 8-18 8-18 240 400 450
100 175 215 230 180 190 155 160 20 24 8-18 8-22 240 455 495
125 200 245 270 210 220 185 188 22 26 8-18 8-26 280 530 560
150 225 280 300 240 250 210 218 22 28 8-23 8-26 320 605 650
200 275 335 360 295 310 265 278 24 30 8-23 12-26 360 650 770

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