Product Usage
The cryogenic gate valve is suitable for low temperature media such as methane, liquid natural gas, hexene, carbon dioxide, liquid ammonia, liquid oxygen, liquid nitrogen, liquid hydrogen, etc.
Features
1. In order to prevent abnormal pressure increase in the cavity, a pressure relief hole is provided on the inlet side of the gate.
2. According to the working temperature of the valve to determine the length of the top of the valve cover to ensure reliable sealing of the stem packing.
3. Reasonable selection of materials for fillers, gaskets and other parts according to working temperature.
4. Strictly control the chemical composition of the material and mechanical properties such as low temperature, impact and toughness.
5. Adopting a variety of pipe flange standard and sealing surface type, suitable for various engineering needs.
Performance Parameters
| model | DZ40Y-16 | DZ40Y-25 | |
| Work pressure（MPa) | 1.6 | 2.5 | |
| proper temperature（℃） | LC3≥-101，LCB≥-46，LCC≥-46,1Cr18Ni9Ti≥-196 | ||
| material | filler | Baptist tetrafluoroethylene asbestos rope | |
| Handwheel | QT450-10 | ||
| Stem nut | ZCuA110Fe3 | ||
| Valve stem | 1Cr18Ni9Ti | ||
| Gasket | Low temperature asbestos | ||
The main shape and connection dimensions
| Nominal diameter | The main dimensions and connection dimensions | |||||||
| L | D | D1 | D2 | b | Z-d | H | D0 | |
| Z40Y-16L | ||||||||
| 20 | 150 | 105 | 75 | 55 | 14-2 | 4-Φ14 | 320 | 140 |
| 25 | 160 | 115 | 85 | 65 | 14-2 | 4-Φ14 | 350 | 160 |
| 32 | 180 | 135 | 100 | 78 | 16-2 | 4-Φ18 | 385 | 180 |
| 40 | 200 | 145 | 110 | 85 | 16-3 | 4-Φ18 | 420 | 200 |
| 50 | 250 | 160 | 125 | 100 | 16-3 | 4-Φ18 | 540 | 240 |
| 65 | 265 | 180 | 145 | 120 | 18-3 | 4-Φ18 | 610 | 240 |
| 80 | 280 | 195 | 160 | 135 | 20-3 | 8-Φ18 | 690 | 280 |
| 100 | 300 | 215 | 180 | 155 | 20-3 | 8-Φ18 | 780 | 300 |
| 125 | 325 | 245 | 210 | 185 | 22-3 | 8-Φ18 | 930 | 320 |
| 150 | 350 | 280 | 240 | 210 | 24-3 | 8-Φ23 | 980 | 360 |
| 200 | 400 | 335 | 295 | 265 | 26-3 | 12-Φ23 | 1180 | 400 |
| 250 | 450 | 405 | 355 | 320 | 30-3 | 12-Φ25 | 1390 | 450 |
| 300 | 500 | 460 | 410 | 375 | 30-3 | 12-Φ25 | 1620 | 580 |
| 350 | 550 | 520 | 470 | 435 | 34-4 | 16-Φ25 | 1810 | 640 |
| 400 | 600 | 580 | 525 | 485 | 36-4 | 16-Φ30 | 1970 | 640 |
| Z40Y-25 | ||||||||
| 20 | 150 | 105 | 75 | 55 | 16-2 | 4-Φ14 | 320 | 140 |
| 25 | 160 | 115 | 85 | 65 | 16-2 | 4-Φ14 | 350 | 160 |
| 32 | 180 | 135 | 100 | 78 | 18-2 | 4-Φ18 | 385 | 180 |
| 40 | 200 | 145 | 110 | 85 | 18-3 | 4-Φ18 | 420 | 200 |
| 50 | 250 | 160 | 125 | 100 | 20-3 | 4-Φ18 | 540 | 240 |
| 65 | 265 | 180 | 145 | 120 | 22-3 | 8-Φ18 | 610 | 240 |
| 80 | 280 | 195 | 160 | 135 | 22-3 | 8-Φ18 | 690 | 280 |
| 100 | 300 | 230 | 190 | 160 | 24-3 | 8-Φ23 | 780 | 300 |
| 125 | 325 | 270 | 220 | 188 | 28-3 | 8-Φ25 | 930 | 320 |
| 150 | 350 | 300 | 250 | 218 | 30-3 | 8-Φ25 | 980 | 360 |
| 200 | 400 | 360 | 310 | 278 | 34-3 | 12-Φ25 | 1180 | 400 |
| 250 | 450 | 425 | 370 | 332 | 36-3 | 12-Φ30 | 1390 | 450 |
| 300 | 500 | 485 | 430 | 390 | 40-4 | 16-Φ30 | 1620 | 580 |
| 350 | 550 | 550 | 490 | 448 | 44-4 | 16-Φ34 | 1810 | 640 |
| 400 | 600 | 610 | 550 | 505 | 48-4 | 16-Φ34 | 1970 | 640 |
Structure picture
All text, data and pictures in this article are for reference only. If you need to see more product performance, structure size, price and other details. Please contact us.
