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American Standard Stainless Steel 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.

◆ Product use

American standard stainless steel globe valve is suitable for Class150 ~ 2500, working temperature ≤ 550 ℃ of petroleum, chemical industry, thermal power station and other working conditions of the pipeline, cut off or connected to the pipeline medium.

◆Product features

1. The product is designed and manufactured according to ASME B16.34 and API623 standards, with reasonable structure, reliable sealing, excellent performance and beautiful appearance;
2, the sealing surface surfacing Co-based hard alloy, wear resistance, corrosion resistance, anti-scratch performance is good, long service life;
3. The valve stem has good corrosion resistance and abrasion resistance after tempering and surface nitriding treatment;
4. The pressure ≥ Class1500 cavity adopts self-tightening sealing structure, and the sealing performance increases with the increase of internal pressure, which ensures the reliability of sealing;
5. The valve is equipped with an inverted sealing structure, which is reliable in sealing;
6. The material of the parts and the size of the flange butt welding end can be reasonably selected according to the actual working conditions or user requirements to meet various engineering needs.




◆Main technical parameters

Design Criteria ASME B16.34 the API 623
Pressure-Temperature Rating ASME B16.34
Structure length ASME B16.10
Flange connection size ASME B16.5
Welding end connection ASME B16.25
Inspection and test API598
Nominal pressure (Lb) 150 300 600
Test pressure (MPa) Shell test 2.93 7.55 15.0
High pressure seal test 2.07 5.52 11.03
Low pressure gas seal test 0.6 0.6 0.6
Upper seal test 0.6 0.6 0.6
Applicable temperature -196 ℃ ~ 550 ℃ (different materials for different working conditions)
Applicable media Water, oil, steam and all kinds of corrosive media (different media use different materials)

 

◆ Main parts materials

Part Name Material Part Name Material
Valve body A351 CF8/CF8M Nut A1948、8M
Disc A182F304、F316 Packing Graphite
Stem A182F304、F316 Packing sleeve A182F304、F316
Disc Cover A182F304、F316 Packing press plate CF8
Winding gasket 304/316 Graphite Stem Nut Copper alloy
Bonnet A351 CF8/CF8M Handwheel KTH300-8
Bolt A193 B8、B8M - -

 

◆ Main outline connection dimension

Pound Class NPS L D D1 D2 b-f Z-Fd H D0
Class 150Lb 2 203 150 120.7 92.1 14.3-2 4-19 350 220
2-1/2 216 180 139.7 104.8 15.9-2 4-19 370 240
3 241 190 152.4 127 17.5-2 4-19 385 280
4 292 230 190.5 157.2 22.3-2 8-19 454 280
5 356 255 215.9 185.7 22.3-2 8-22 472 350
6 406 280 241.3 215.9 23.9-2 8-22 541 350
8 495 345 298.5 269.9 27-2 8-22 590 450
10 622 405 362 323.8 28.6-2 12-25 780 500
12 698 485 431.8 381 30.2-2 12-25 870 550
14 787 535 476.3 412.8 33.4-2 12-29 900 600
16 914 595 539.8 469.9 35-2 16-29 1250 600
Class 300Lb 2 267 165 127 92.1 20.7-2 8-19 345 240
2-1/2 292 190 149.2 104.8 23.9-2 8-22.5 377 280
3 318 210 168.3 127 27-2 8-22.5 464 280
4 356 255 200 157.2 30.2-2 8-22.5 490 350
5 400 280 235 185.7 33.4-2 8-22.5 614 400
6 444 320 269.9 215.9 35-2 12-22.5 700 450
8 559 380 330.2 269.9 39.7-2 12-25.5 777 500
10 622 445 387.4 323.8 46.1-2 16-29 935 450
12 711 520 450.8 381 49.3-2 16-32 997 500
14 838 585 514.4 412.8 52.4-2 20-32 1058 600
16 864 650 571.5 469.9 55.6-2 20-35 1320 600
18 978 710 628.6 533.4 58.8-2 24-35 1420 700
20 1016 775 685.8 584.2 62-2 24-35 1510 800

Note: The flange size in this table is in accordance with GB/T 9113-2010, and the structure length is in accordance with GB/T 12221-2005.

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