American-standard wedge gate 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:
Cast 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 Overview
American‑standard wedge gate valves are control components in fluid‑transport systems, providing functions such as shut‑off, regulation, flow diversion, backflow prevention, pressure stabilization,分流 (diversion), or overflow and pressure relief. Valves used in fluid‑control systems range from the simplest American‑standard globe valves to the highly complex varieties employed in automated control systems, with an extensive array of types and specifications. These valves can be used to regulate the flow of a wide variety of fluids, including air, water, steam, corrosive media, slurry, petroleum products, liquid metals, and radioactive substances.
◆Product Features
1. The product is designed and manufactured in compliance with advanced international standards, featuring reliable sealing and excellent performance.
2. The structural design is compact and well-organized, with an aesthetically pleasing appearance.
3. It adopts a wedge-type elastic gate plate structure, with rolling bearings installed in medium and large-diameter valves, ensuring smooth opening and closing.
4. The valve body is available in a wide range of materials, and the packing and gaskets can be appropriately selected based on the actual operating conditions or user requirements, making it suitable for various pressure, temperature, and fluid‑service applications.
◆Implementation Standard
| Design and Manufacturing | Structural length | Connection flange | Butt-welded connection dimensions | Pressure-Temperature | Testing and Inspection |
| API 600, API 6D | ANSI B16.10 | ASME B16.5/B16.47 | ANSI B16.25 | ANSI B16.34 | API 598, API 6D |
◆Main Performance Specifications
| Nominal Pressure (Lb) | Strength test | Water-tightness test | Air-tightness test | |||
| MPa | Lbf/in² | MPa | Lbf/in² | MPa | Lbf/in² | |
| 150 | 3.1 | 450 | 2.2 | 315 | 0.5~0.7 | 60~100 |
| 300 | 7.8 | 1125 | 5.6 | 815 | ||
| 600 | 15.3 | 2225 | 11.2 | 1630 | ||
| 900 | 23.1 | 3350 | 16.8 | 2440 | ||
| 1500 | 38.4 | 5575 | 28.1 | 4080 | ||
| 2500 | 64.0 | 9367 | 46.8 | 6873 | ||
◆Materials of Main Components
| Valve Body/Valve Bonnet/Valve Disc | Valve stem | Sealing surface | Gasket (Ring) | Filler | Operating Temperature (°C) | Applicable medium |
| WCB | 20Cr13 | 13Cr STL Body material PTFE Nylon |
Enhanced Flexible Graphite 13Cr Flexible Graphite SFB-2 08 Mild Steel F304 F316 F304L F316L |
NBR/FPM flexible graphite Enhanced Flexible Graphite SFB/260 SFP/260 PTFE |
≤425 | Water, steam, and oil products |
| WC1 | 38CrMoAl 25Cr2Mov |
≤450 | ||||
| WC6 | ≤540 | |||||
| WC9 | ≤570 | |||||
| C5 C12 | ≤540 | |||||
| CF8 | F304 | ≤600 | Nitric acid, acetic acid, urea | |||
| CF3 | F316 | |||||
| CF8M | F304L | |||||
| CF3M | F316L |
◆Main External Connection Dimensions
| Pound class | NPS | L | D | D1 | D2 | b-f | Z-Фd | H | D0 |
| Class 150Lb | 2 | 178 | 150 | 120.7 | 92.1 | 14.3-2 | 4-19 | 310 | 200 |
| 2-1/2 | 190 | 180 | 139.7 | 104.8 | 15.9-2 | 4-19 | 380 | 220 | |
| 3 | 203 | 190 | 152.4 | 127 | 17.5-2 | 4-19 | 412 | 240 | |
| 4 | 229 | 230 | 190.5 | 157.2 | 22.3-2 | 8-19 | 471 | 280 | |
| 5 | 254 | 255 | 215.9 | 185.7 | 22.3-2 | 8-22 | 516 | 300 | |
| 6 | 267 | 280 | 241.3 | 215.9 | 23.9-2 | 8-22 | 588 | 300 | |
| 8 | 292 | 345 | 298.5 | 269.9 | 27-2 | 8-22 | 741 | 350 | |
| 10 | 330 | 405 | 362 | 323.8 | 28.6-2 | 12-25 | 903 | 400 | |
| 12 | 356 | 485 | 431.8 | 381 | 30.2-2 | 12-25 | 1054 | 500 | |
| 14 | 381 | 535 | 476.3 | 412.8 | 33.4-2 | 12-29 | 1295 | 600 | |
| 16 | 406 | 595 | 539.8 | 469.9 | 35-2 | 16-29 | 1435 | 600 | |
| 18 | 432 | 635 | 577.9 | 533.4 | 38.1-2 | 16-32 | 1626 | 650 | |
| 20 | 457 | 700 | 635 | 584.2 | 41.3-2 | 20-32 | 1859 | 650 | |
| Class 300Lb | 2 | 216 | 165 | 127 | 92.1 | 20.7-2 | 8-19 | 353 | 250 |
| 2-1/2 | 241 | 190 | 149.2 | 104.8 | 23.9-2 | 8-22.5 | 377 | 250 | |
| 3 | 282 | 210 | 168.3 | 127 | 27-2 | 8-22.5 | 397 | 300 | |
| 4 | 305 | 255 | 200 | 157.2 | 30.2-2 | 8-22.5 | 482 | 300 | |
| 5 | 381 | 280 | 235 | 185.7 | 33.4-2 | 8-22.5 | 568 | 350 | |
| 6 | 403 | 320 | 269.9 | 215.9 | 35-2 | 12-22.5 | 625 | 350 | |
| 8 | 419 | 380 | 330.2 | 269.9 | 39.7-2 | 12-25.5 | 776 | 400 | |
| 10 | 457 | 445 | 387.4 | 323.8 | 46.1-2 | 16-29 | 958 | 500 | |
| 12 | 502 | 520 | 450.8 | 381 | 49.3-2 | 16-32 | 1135 | 600 | |
| 14 | 762 | 585 | 514.4 | 412.8 | 52.4-2 | 20-32 | 1205 | 600 | |
| 16 | 838 | 650 | 571.5 | 469.9 | 55.6-2 | 20-35 | 1367 | 650 |
Note: In this table, flange dimensions are in accordance with ASME B16.5/B16.47, and the face-to-face length is in accordance with ASME B16.10.
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