This valve is specially used to control general corrosive or powdery granular media. The inner cavity surface of the valve is not lined or covered with various rubbers to choose from. It is suitable for different working temperatures and fluid pipelines.
Applicable temperature: ≤85℃. Sensing 100℃. ≤120℃, ≤150℃ (according to lining and diaphragm material)
Main material
| NO. | Name | Material |
| 1 | Body | Cast iron，Carbon steel,stainless steel |
| 2 | Bonnel | Cast iron，Carbon steel,stainless steel |
| 3 | Lining | Unlined, rubber |
| 4 | Diaphragm | Rubber |
| 5 | Valve petal | Cast iron，Carbon steel |
| 6 | Stem | Cast iron，Carbon steel |
| 7 | Handwheel | Cast iron |
Tests
| Lining layer | Electric spark detection |
| Test and inspection | BS6755 |
| Nominal pressure | Body：PNx1.5 |
| Seal：PNx1.1 |
Shape controltable
| DN | Nominal pressure(Mpa) | Work pressure(Mpa) | L | D | D1 | n-φ | f | H1 | H2 | D0 | KG |
| 20 | 117 | 105 | 75 | 4—14 | 2 | 150 | 162 | ||||
| 25 | 127 | 115 | 85 | 4—14 | 2 | 150 | 162 | 120 | 3.5 | ||
| 32 | 146 | 140 | 100 | 4—18 | 2 | 152 | 180 | 120 | 5 | ||
| 40 | 159 | 150 | 110 | 4—18 | 2 | 152 | 180 | 120 | 6 | ||
| 50 | 190 | 165 | 125 | 4—18 | 2 | 163 | 198 | 120 | 8.5 | ||
| 65 | 216 | 185 | 145 | 4—18 | 2 | 205 | 227 | 230 | 16 | ||
| 80 | 254 | 200 | 160 | 8—18 | 2 | 220 | 252 | 230 | 22 | ||
| 100 | 305 | 220 | 180 | 8—18 | 2 | 262 | 300 | 280 | 32 | ||
| 125 | 0.6 | 356 | 250 | 210 | 8—18 | 3 | 290 | 335 | 280 | 43.5 | |
| 150 | 406 | 285 | 240 | 8—22 | 3 | 368 | 427 | 368 | 65 | ||
| 200 | 521 | 340 | 295 | 8—22 | 3 | 410 | 470 | 483 | 112.5 | ||
| 250 | 0.4 | 635 | 395 | 350 | 12—22 | 5 | 479 | 569 | 483 | 192.5 | |
| 300 | 749 | 445 | 400 | 12—22 | 5 | 550 | 650 | 560 | 296 | ||
| 350 | 787 | 505 | 460 | 16—22 | 5 | 550 | 650 | 560 | |||
| 400 | 0.25 | 914 | 565 | 515 | 16—26 | 5 | 640 |
