Gost Standard 4 Gate Valve Flanged Double Disc Brass Seat Dn200
GOST Standard Cast Iron Rising Stem Double Disc Brass Seat Flanged Gate Valve
Usage
The valve can be used for opening and closing on pipelines and equipment with non corrosive media, and generally not for throttling.
Action principle
The valve rotates the valve stem nut by rotating the hand wheel to make the valve stem move up and down, so as to drive the ram to rise or fall and make a linear displacement perpendicular to the fluid to achieve the purpose of opening and closing.
Valve features
1. Simple shape, good manufacturing process, wide application range and easy installation.
2. The fluid resistance is small. The medium channel inside the valve body of the gate valve is straight. The medium does not change its flow direction when flowing through the gate valve, so the flow resistance is small.
3. The medium can flow in any direction from both sides of the gate valve, which can be connected or cut off
Measurement size
| DN | L | D | D1 | D2 | D3 | b-f | Z-Φd | Hmin | Hmax | W |
| 50 | 180 | 160 | 125 | 100 | 50 | 17-2 | 4-Φ18 | 238.6 | 289 | 169 |
| 80 | 210 | 195 | 160 | 135 | 78 | 19-2 | 8-Φ18 | 310 | 404 | 190 |
| 100 | 230 | 215 | 180 | 155 | 97 | 19-2 | 8-Φ18 | 326 | 427 | 190 |
| 150 | 280 | 280 | 240 | 210 | 150 | 21-3 | 8-Φ23 | 466 | 616 | 240 |
| 200 | 330 | 340 | 295 | 265 | 200 | 23-3 | 8-Φ23 | 628 | 840 | 320 |
| 250 | 450 | 395 | 350 | 320 | 234 | 26-3 | 12-Φ23 | 735 | 986 | 350 |
| 300 | 500 | 445 | 400 | 368 | 290 | 26-3 | 12-Φ23 | 862.5 | 1159.5 | 350 |
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