This valve is specially used to control non-corrosive or strongly corrosive media. The surface of the inner cavity of the valve is not lined or covered with various fluoroplastics to choose from. It is suitable for different working temperatures and fluid pipelines.
Applicable temperature: ≤85℃, ≤100℃, 4120℃, ≤150℃ (according to lining and diaphragm material)
Main material
| NO. | Name | Material |
| 1 | Body | Carbon steel,stainless steel |
| 2 | Bonnel | Carbon steel,stainless steel |
| 3 | Lining | Unlined, rubber |
| 4 | Diaphragm | Rubber |
| 5 | Valve petal | Fluoroplastic |
| 6 | Stem | Carbon steel,stainless steel |
| 7 | Handwheel | Cast iron |
Test
| 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 |
| 15 | 1.6 | 1.6 | 108 | 95 | 65 | 4—14 | 2 | 90 | 99 | 66 | 2 |
| 20 | 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 | 5 | 598 | 734 | 500 | 229 | ||
| 300 | 0.4 | 749 | 445 | 400 | 12—22 | 5 | 698 | 778 | 560 | 321 | |
| 350 | 787 | 505 | 460 | 16—22 | 5 | 723 | 883 | 560 | 360 | ||
| 400 | 0.25 | 914 | 565 | 515 | 16—26 | 5 | 868 | 1078 | 640 | 584 |
