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 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 | Diaphragm | F46 |
| 2a | Copy | EPDM |
| 3 | Disc | GG40 |
| 4 | Cover | PPH |
| 5 | Stem | 2Cr13 |
| 6 | Stem nut | HPb9-1 |
| 7 | Cylinder | Aluminum alloy |
| 8 | Cap | Ht250 |
Shape control table
| NPS(in) | DN(mm) | PN(Mpa) | size(mm)standard | reference | |||
| L | D1 | A | H1 | W(kg) | |||
| ½ | 15 | 0.6 | 196 | 20 | 110 | 195 | 2 |
| ¾ | 20 | 0.6 | 221 | 25 | 110 | 200 | 2.3 |
| 1 | 25 | 0.6 | 234 | 32 | 110 | 210 | 2.5 |
| 1 ¼ | 32 | 0.6 | 255 | 40 | 140 | 228 | 3 |
| 1 ½ | 40 | 0.6 | 284 | 50 | 140 | 240 | 5 |
| 2 | 50 | 0.6 | 321 | 63 | 170 | 290 | 8 |
