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.
Key words:
Classification:
Stainless steel valve series
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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