Three-way diaphragm valve uses
three-way diaphragm valve purposes: This valve is designed to control non-corrosive or generally corrosive media, the body cavity surface without lining or covered with a variety of rubber to choose from, suitable for different operating temperatures and fluid pipe road.
Three-way diaphragm valve test
lining: Spark
testing and inspection according to GB / T13297 standard
Nominal pressure: PN (Mpa)
Body: PN × 1.5
Seal: PN × 1.1
Three-way diaphragm
valve Diaphragm valve is a special form Of the globe valve;
1, the elastic seal of the opening and closing pieces to ensure that no internal leakage;
2, streamlined flow channel, making the pressure loss is small;
3, there is no stuffing box, so there is no leakage;
4, spaced above the diaphragm such that the bonnet, the stem parts from erosion of media;
5, the diaphragm can be replaced, low maintenance costs;
6, diversity lining material, may be applied to a variety of media, and has good corrosion resistance .
name | material |
Body | Cast iron, stainless steel |
cap | cast iron |
Disc | cast iron |
Handwheel | cast iron |
Diaphragm | Natural rubber, butyl rubber and so on |
Valve stem | Carbon steel |
Nominal diameter (dn) | Nominal pressure (mpa) | Working pressure (mpa) | l | d | d1 | z-φ | f | h1 | h2 | d0 | Weight (kg) |
20 | 1.6 | 1.6 | 117 | 105 | 75 | 4-14 | 2 | 93 | 103 | 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 | 118 | 10 | ||
65 | 1.0 | 1.0 | 216 | 185 | 145 | 4-18 | 2 | 183 | 213 | 165 | 16 |
80 | 254 | 200 | 160 | 8-18 | 2 | 198 | 273 | 230 | 23.5 | ||
100 | 305 | 220 | 180 | 8-18 | 2 | 266 | 320 | 280 | 34 | ||
125 | 356 | 250 | 210 | 8-18 | 3 | 319 | 386 | 280 | 44 | ||
150 | 406 | 285 | 240 | 8-22 | 3 | 380 | 453 | 368 | 67.5 | ||
200 | 0.6 | 521 | 340 | 295 | 8-22 | 3 | 506 | 626 | 400 | 141.5 | |
250 | 635 | 395 | 350 | 12-22 | 3 | 598 | 734 | 500 | 229 | ||
300 | 0.4 | 749 | 445 | 400 | 12-22 | 3 | 698 | 778 | 560 | 321 | |
350 | 749 | 505 | 460 | 16-22 | 3 | 723 | 883 | 560 | 360 | ||
400 | 0.25 | - | 565 | 515 | 16-26 | 3 | 868 | 1078 | 640 | 584 |