It adopts corrosion-resistant valve body and corrosion-resistant diaphragm, no stuffing box structure, elastic diaphragm for throttling element, smooth flow passage of the valve body, so the pneumatic diaphragm valve has small female force, large flow, no leakage, convenient and reliable, fireproof and explosion-proof The advantages are widely used in the flow adjustment of strong acid, strong alkali, strong corrosion, high viscosity, glume-containing, fiber-containing, and toxic and non-contaminated media in industrial automation systems.
Main material
| NO. | Name | Material |
| 1 | Body | PPH |
| 2 | Bonnel | PPH |
| 3 | Diaphragm | EPDM+F46 |
| 4 | Disc | UPVC |
| 5 | Cylinder | Aluminum alloy |
| 6 | Piston | Aluminum alloy |
| 7 | Stem | Stainless steel |
| 8 | Connection method | Flange |
Shape control table
| 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 | ||
