It adopts corrosion-resistant valve body and corrosion-resistant diaphragm, no stuffing box structure, elastic diaphragm for throttling element, smooth flow passage of valve body, so pneumatic diaphragm diaphragm valve has small female force, large flow, no leakage, convenient and reliable, The advantages of fire and explosion protection are widely used in the flow adjustment of weak acid, weak alkali, weak corrosion, high viscosity, glume-containing, fiber-containing, and toxic and non-contaminated media in industrial automation systems.
Main material
| NO. | Name | Material |
| 1 | Body | UPVC |
| 2 | Bonnel | UPVC |
| 3 | Diaphragm | EPDM+F46 |
| 4 | Disc | UPVC |
| 5 | Cylinder | Aluminum alloy |
| 6 | Piston | Aluminum alloy |
| 7 | Stem | Stainless steel304/45# |
| 8 | Connection method | Flange |
Shape controltable
| DN | L | D | D1 | n | φd | A | H | KG | |||
| HG | JIS | DIN | ANSI | ||||||||
| 15 | 125 | 95 | 65 | 70 | 65 | 50 | 4 | 14 | 110 | 215 | 2 |
| 20 | 135 | 105 | 75 | 75 | 75 | 70 | 4 | 14 | 110 | 220 | 2.3 |
| 25 | 145 | 115 | 85 | 90 | 85 | 80 | 4 | 14 | 110 | 225 | 2.5 |
| 32 | 160 | 135 | 100 | 4 | 18 | 140 | 240 | 3 | |||
| 40 | 180 | 145 | 110 | 105 | 110 | 100 | 4 | 18 | 170 | 285 | 5 |
| 50 | 210 | 160 | 125 | 120 | 125 | 120 | 4 | 18 | 170 | 307 | 8 |
| 65 | 250 | 180 | 145 | 140 | 145 | 140 | 4 | 18 | 200 | 327 | 13 |
| 80 | 300 | 195 | 160 | 150 | 160 | 152 | 8 | 18 | 230 | 390 | 16 |
| 100 | 350 | 215 | 180 | 175 | 180 | 190 | 8 | 18 | 260 | 470 | 24 |
| 125 | 400 | 245 | 210 | 210 | 210 | 216 | 8 | 18 | 310 | 637 | 30 |
| 150 | 460 | 280 | 240 | 240 | 240 | 240 | 8 | 23 | 370 | ||
| 200 | 570 | 335 | 295 | 290 | 290 | 298 | 8 | 23 | 490 | ||
