1. This valve is flange connected in accordance with gb/t12236 standard.
2. This valve is composed of valve body, valve cover, valve disc, rocker and rocker shaft and other parts. The valve disc can automatically prevent fluid backflow. The valve disc of this valve is opened under the action of fluid pressure, and the fluid flows from the inlet side to the outlet side. When the inlet pressure is lower than the outlet pressure, the valve disc automatically closes under the action of fluid pressure difference, its own gravity and other factors to prevent medium backflow.
Part name | Material |
Body,Bonnet | WCB |
Disc | WCB+2Cr13 |
Stem | Q235 |
Rocker shaft | Carbon Steel,Staniless Steel |
H44H-16C | DN | L | D | D1 | D2 | b-f | z-Фd | H |
40 | 200 | 145 | 110 | 85 | 16-2 | 4-Ф18 | 126 | |
50 | 230 | 160 | 125 | 100 | 16-2 | 4-Ф18 | 132 | |
65 | 290 | 180 | 145 | 120 | 18-2 | 4-Ф18 | 151 | |
80 | 310 | 195 | 160 | 129 | 20-2 | 8-Ф18 | 164 | |
100 | 350 | 215 | 180 | 155 | 20-2 | 8-Ф18 | 185 | |
125 | 400 | 245 | 210 | 185 | 22-2 | 8-Ф18 | 202 | |
150 | 480 | 280 | 240 | 210 | 24-2 | 8-Ф23 | 223 | |
200 | 550 | 340 | 295 | 266 | 24-2 | 12-Ф23 | 350 | |
250 | 650 | 405 | 355 | 319 | 26-2 | 12-Ф26 | 331 | |
300 | 750 | 460 | 410 | 370 | 28-2 | 12-Ф26 | 432 |
1. The fluid resistance is small, and the sealing surface is less brushed and eroded by the medium.
2. Simple shape, good manufacturing technology and wide application range.
3. The limit device in the inner cavity of the valve body prevents the valve disc from being opened too high and cannot be closed, making the service performance of the whole machine more stable
4. During installation, the medium flow direction is consistent with the arrow direction on the valve body.