Parallel type double disc gate valve manufacturer
Parallel double gate valve（Description）
Z44 parallel double GATE VALVE IS suitable for the medium of water, sewage pipeline as closed circuit equipment, not allowed to adjust the flow and emptying. This kind of gate valve is widely used in petroleum, chemical, pharmaceutical, electric power and other industries. It is used for opening and closing the pipeline of steam, water, oil and other media with nominal pressure ≤l.0MPa. Our factory can produce parallel double gate valve, parallel single gate valve, open rod parallel double gate valve, open rod parallel single gate valve.
Structural features
- When the system is working normally, the gate is opened and closed at a constant speed of 1.0m/min; When the system is in an accident state such as power failure, the shutdown is divided into two stages: fast and slow. 100-20% open degree is fast closing, time 10 (S). 20-0% open for slow closing, time 40 (S)
- Used in the pump outlet as a cut-off, check valve use, the valve also has a stem locking device. Ensure safe operation.
- Z943T gate valve adopts new electric device, which can be operated locally or controlled remotely, and can meet the requirements of computer program control. The control is accurate, safe and reliable.
| Model | Nominal pressure (MPa) | Test pressure (MPa) | Operating temperature (℃) | Applicable medium | ||
| Strength (water) | Seal (water) | |||||
| Z44T-10 | 1.0 | 1.5 | 1.1 | ≤120 | Steam, water | |
| Z44W-10 | ≤100 | oil, gas |
Material of main parts
| name | Materials | |
| Z44T-110 | Z44W-10 | |
| Valve body、 Valve deck | Gray iron | Gray iron |
| Valve plate | Gray iron+ steel | Gray iron |
| Valve rod | Carbon steel | Carbon steel |
| cast steel | cast steel | |
| Valve rod screw nut | Green steel | Green steel |
Boundary dimension and conncetionsize
| Model | Nominal diameter DN（mm） | Szie | Weight(kg) | |||||||
| L | D | D1 | D2 | b-f | Z-Φd | H | Do | |||
| Z44T-10
Z44W-10 Z44H-10 Z44F-10 |
40 | 165 | 145 | 145 | 85 | 18-3 | 4-18 | 240 | 135 | 16.5 |
| 50 | 180 | 160 | 160 | 100 | 20-3 | 4-18 | 260 | 180 | 20 | |
| 65 | 195 | 180 | 180 | 120 | 20-3 | 4-18 | 300 | 180 | 25.5 | |
| 80 | 210 | 195 | 195 | 135 | 22-3 | 4-18 | 345 | 200 | 31 | |
| 100 | 230 | 215 | 215 | 155 | 22-3 | 8-18 | 395 | 200 | 47 | |
| 125 | 255 | 245 | 245 | 185 | 24-3 | 8-18 | 478 | 240 | 64 | |
| 150 | 280 | 280 | 280 | 210 | 24-3 | 8-23 | 558 | 240 | 100 | |
| 200 | 330 | 335 | 335 | 265 | 26-3 | 8-23 | 720 | 320 | 144 | |
| 250 | 380 | 390 | 390 | 320 | 28-3 | 12-23 | 845 | 320 | ||
| 300 | 420 | 440 | 440 | 368 | 28-4 | 12-23 | 990 | 400 | ||
| 350 | 450 | 500 | 500 | 428 | 30-3 | 16-23 | 1100 | 400 | ||
| 400 | 480 | 565 | 565 | 482 | 32-3 | 16-25 | 1200 | 500 | ||
| 450 | 510 | 615 | 615 | 532 | 32-3 | 20-25 | 1300 | 500 | ||
| 500 | 540 | 670 | 670 | 585 | 34-3 | 20-25 | 1500 | 500 |
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