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Forged 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:

Cast 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 Features
1. Bolted bonnet or welded bonnet;
2. Diameter reduction;
3. Tapered valve disc or needle valve disc;
4. Flanged connection or butt-welded connection.

 

Technical Specification

Design Standards Pressure-temperature rating Structural length Flange Type Dimensions Butt-welded end connection Inspection and Testing
GB/T12235 GB/T12224 GB/T12221 GB/T9113 GB/T12224 JB/T9092
GB/T12224 JB/T96-95 JB/T82.1~82.4

 

Main external connection dimensions and weight

Nominal pressure Specifications Valve size Weight (kg)
mm in. d (reduction in diameter) L-RF L-BW H W
PN1.6/2.5 15 1/2 10 130 130 158 100 3.8/4.0
20 3/4 13 150 150 163 100 4.5/1.7
25 1 19.1 160 160 193 125 5.6/5.8
32 1¼ 24 190 190 250 160 6.3/6.5
40 1½ 31.8 200 200 250 160 9.1/10.7
50 2 38.1 230 230 291 180 13.7/15.3
65 2½ 48.5 290 290 350 240 24.5/26.3
PN4.0 15 1/2 10 130 130 158 100 4.3
20 3/4 13 150 150 163 100 5
25 1 19.1 160 160 193 125 6.3
32 1¼ 24 190 190 250 160 7
40 1½ 31.8 200 200 250 160 12.3
50 2 38.1 230 230 291 180 18.8
65 2½ 48.5 290 290 350 240 27.7
PN6.4 15 1/2 10 170 170 158 100 4.8
20 3/4 13 190 190 163 100 5.6
25 1 19.1 210 210 193 125 8
32 1¼ 24 230 230 250 160 9.4
40 1½ 31.8 260 260 250 160 13.7
50 2 38.1 300 300 291 180 23.7
65 2½ 48.5 340 340 350 240 32
PN10.0 15 1/2 10 170 170 158 100 5.4
20 3/4 13 190 190 163 100 6.6
25 1 19.1 210 210 193 125 9.8
32 1¼ 24 230 230 250 160 10.5
40 1½ 31.8 260 260 250 160 18.6
50 2 38.1 300 300 291 180 27.6
65 2½ 48.5 340 340 350 240 35

Note: H is the valve’s full-open height.

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