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Pneumatic sanitary diaphragm valve

Product Overview

The pneumatic sanitary diaphragm valve has the advantages of simple structure, beautiful appearance, quick disassembly, flexible operation, small fluid resistance, safe and reliable use. It is suitable for the control of water, gas, oil and corrosive medium in chemical industry, petroleum industry, metallurgy industry, water heating industry, food industry and pharmaceutical industry. The reason of structure design of pneumatic sanitary diaphragm valve is especially suitable for ultra pure medium or heavily polluted, very viscous liquid, gas, corrosive or inert medium. When combined with control equipment, pneumatic sanitary diaphragm valve can replace other traditional control systems, especially for solid and easily polluted inert media.

Structural characteristics

1. The inner cavity of the lower valve body is separated from the inner cavity of the upper valve cover with a diaphragm, so that the valve stem, valve disc and other parts placed on the diaphragm will not be corroded by medium, and the medium leakage will not occur, so the packing box sealing structure is omitted.
2. The diaphragm is made of soft sealing materials such as rubber or plastic, which has good sealing performance. As the diaphragm is a vulnerable part, it should be replaced regularly according to the working condition and medium characteristics.
3. Limited by diaphragm material, diaphragm valve is suitable for low pressure and low temperature.
4. The variety of lining materials can be used in various media with good corrosion resistance.
5. The diaphragm can be replaced and the maintenance cost is low.

Execution standard

Connection size:BS4504、DIN2532、JIS B2212、ANSI B16.1、ISO2004

Performance parameter

Main materials: gray iron, ductile iron, carbon steel
Nominal diameter: DN50~1200mm
Nominal pressure: PN1.0~ 2.5mpa
Applicable temperature: < 80℃
Applicable medium: water and medium with physical and chemical properties similar to water

Product Dimensions

DN Nominal pressure
MPa
working pressure
MPa
L
mm
D
mm
D1
mm
n-Фd
mm
f
mm
H1
mm
b
mm
D0
mm
Weight
Kg/kilos
15 1.6 1.6 108 95 65 4-14 2 84 92 66 2
20 117 105 75 4-14 2 93 105 66 3
25 127 115 85 4-14 2 100 112 66 4
32 146 140 100 4-18 2 127 144 96 6.5
40 159 150 110 4-18 2 136 156 96 7.5
50 190 165 125 4-18 2 151 177 96 10.5
65 1.0 1.0 216 185 145 4-18 2 183 213 165 17.5
80 254 200 160 8-18 2 190 230 230 25.5
100 305 220 180 8-18 2 242 285 280 36
125 356 250 210 8-18 3 285 348 280 47.5
150 406 285 240 8-22 3 353 431 368 74
200 0.6 521 340 295 8-22 3 445 537 483 143

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