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American standard floating 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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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 overview

American standard floating ball valve opening and closing parts (ball) driven by the valve stem, and around the axis of the valve stem for rotational movement of the valve. It is mainly used to cut off or connect the medium in the pipeline, and can also be used for fluid regulation and control. It can no longer be used for cutting off after adjustment. Floating ball between itself compact structure, reliable sealing, simple structure, convenient maintenance, sealing surface and spherical surface often closed state, not easy to be medium erosion, easy operation and maintenance, suitable for water, solvent, acid and natural gas and other general working medium, but also suitable for working conditions of poor media, such as oxygen, hydrogen peroxide methane and ethylene, etc., in various industries have been widely used.

◆ Product overview

1. The valve is an excellent product produced by our company on the basis of digesting and absorbing advanced technology at home and abroad. It has updated design features and can meet the safety and convenience needs of general industrial standards.
2, the sphere is floating, under the action of the medium pressure, the sphere can produce a certain displacement and press on the sealing surface of the outlet end to ensure the seal of the outlet end.
3, the valve rotation 90 ° can be fully closed fully open, open and close quickly. Compared with the gate valve and globe valve of the same specification, the ball valve is small in size and light in weight, which is convenient for pipeline installation.
4, in a variety of valves, the ball valve flow resistance is the smallest, full diameter ball valve is opened, the ball channel, valve body channel and connecting pipe diameter is equal and a diameter, the medium can flow through almost without loss.
5. The valve has simple structure, compact structure and good sealing performance. The sealing surface and ball valve are often closed and are not easily eroded by the medium.



◆Main technical parameters

Design Criteria API608、API 6D
Pressure-Temperature Rating ASME B16.34
Structure length ASME B16.10 → API6D
Flange connection size ASME B16.5
Welding end connection ASME B16.25
Inspection and test API598
Nominal pressure (Lb) 150 300 600
Shell test 3.0 7.5 16.5
Test pressure (MPa) High pressure seal test 2.2 5.5 12.1
Low pressure gas seal test 0.6 0.6 0.6
Applicable temperature -29 ℃ ~ 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 Valve seat PTFE, metal materials
Stud A193 B8、B8M Stem A182 F304
Nut A1942H、2HM Packing PTFE, Graphite
Gasket PTFE, Graphite Packing gland A351 CF8
Bonnet A351 CF8/CF8M Handle A216 WCB
Sphere A182F304、F316 - -

 

◆ Main parts materials

Pressure rating Class DN NPS L D D1 D2  f   b Z-fd H W
Class150Lb 15 1/2 108 90 60.3 34.9 2 8 4-16 188 120
20 3/4 117 100 69.9 42.9 2 8.9 4-16 202 120
25 1 127 110 79.4 50.8 2 9.6 4-16 225 140
32 1-1/4 140 115 88.9 63.5 2 11.2 4-16 252 160
40 1-1/2 165 125 98.4 73 2 12.7 4-16 277 180
50 2 178 150 120.7 92.1 2 14.3 4-19 323 200
65 2-1/2 190 180 139.7 104.8 2 15.9 4-19 347 240
80 3 203 190 152.4 127 2 17.5 4-19 383 240
100 4 229 230 190.5 157.2 2 22.3 8-19 457 280
125 5 356 255 215.9 185.7 2 22.3 8-22.5 580 300
150 6 394 280 241.3 215.9 2 23.9 8-22.5 635 300
200 8 457 345 298.5 269.9 2 27 8-22.5 762 350
250 10 533 405 362 323.8 2 28.6 12-25.5 910 400
300 12 610 485 431.8 381 2 30.2 12-25.5 1080 500
Class300Lb 15 1/2 140 95 66.7 35 2 12.7 4-16 155 140
20 3/4 152 115 82.6 43 2 14.3 4-19 160 140
25 1 165 125 88.9 50.8 2 15.9 4-19 186 160
32 1-1/4 178 135 98.4 63.5 2 17.5 4-19 216 180
40 1-1/2 190 155 114.3 73 2 19.1 4-22.5 250 200
50 2 216 165 127 92 2 20.7 8-19 330 220
65 2-1/2 241 190 149.2 104.8 2 23.9 8-22.5 368 250
80 3 283 210 168.3 127 2 27 8-22.5 400 300
100 4 305 255 200 157.2 2 30.2 8-22.5 473 300
125 5 381 280 235 185.7 2 33.4 8-22.5 660 350
150 6 403 320 269.9 215.9 2 35 12-22.5 711 400
200 8 502 380 330.2 269.9 2 39.7 12-25.5 813 450

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