China Marine Center Double Flanged Worm Manual Butterfly Valve:
Marine Marine Center Double Flanged Worm Manual Butterfly Valve is operated by worm gear, and connected by flanges, used to adjust the flow rate, open and close the pipe system in the marine pipe system.
Technical Specification:
Design Standard: GB/T3036-1994 Type C/CS
Test Standard: GB600
Applicable Medium: sea water, fresh water, air, crude/refined oil (t≤70℃)
Main Material:
1-Body: Cast Iron, Ductile Iron, Cast Steel, Bronze, Aluminum Alloy
2-Disc: WCB with galv, Stainless Steel, Bronze
3-Pin: Stainless Steel
4-Seat: NBR, EPDM,CR,FPM,VITION,PTFE
5-Stem: Stainless Steel
Main Size:
| Nominal Pressure Mpa | Norminal diameter | Structure& Flange Dimension (ISO) | |||||||||
| H | H1 | L1 | D0 | L | D | D1 | D2 | n | d | ||
| 1.0 | 50 | 280 | 80 | 160 | 160 | 108 | 165 | 125 | 102 | 4 | 18 |
| 65 | 295 | 90 | 160 | 160 | 112 | 185 | 145 | 122 | 4 | 18 | |
| 80 | 340 | 120 | 160 | 160 | 114 | 200 | 160 | 133 | 8 | 18 | |
| 100 | 360 | 130 | 160 | 160 | 127 | 220 | 180 | 158 | 8 | 18 | |
| 125 | 395 | 150 | 160 | 160 | 140 | 250 | 210 | 184 | 8 | 18 | |
| 150 | 430 | 165 | 180 | 220 | 140 | 285 | 240 | 212 | 8 | 22 | |
| 200 | 485 | 195 | 180 | 220 | 152 | 340 | 295 | 268 | 8 | 22 | |
| 250 | 570 | 225 | 210 | 300 | 165 | 395 | 350 | 320 | 12 | 22 | |
| 300 | 630 | 250 | 210 | 300 | 178 | 445 | 400 | 370 | 12 | 22 | |
| 350 | 730 | 280 | 275 | 380 | 190 | 505 | 460 | 430 | 16 | 22 | |
| 400 | 800 | 310 | 275 | 380 | 216 | 565 | 515 | 482 | 16 | 26 | |