First, Z45 cast iron dark bar valve main features and uses
1, Compact structure, reasonable design, good valve rigidity, smooth passage, small flow resistance coefficient.
2, the sealing surface of stainless steel and carbide, long life.
3, Flexible graphite packing, reliable sealing, light and flexible operation.
4, the driving mode sub-manual, electric, pneumatic, gear drive,
structure type: elastic wedge single gate, rigid wedge single gate and
double gate model.
5, Widely used in petroleum chemical industry, thermal power plants
and other oil products, water vapor pipeline for access or cut off the
medium pipeline opening and closing devices.
Second , Z45 cast iron dark bar gate valve main technical parameters
| Model | Nominal pressure MPa | Test pressure MPa | Operating temperature | Use media | |
| seal | strength | ||||
| Z45H-10 | 1.0 | 1.1 | 1.5 | ≤200 ℃ | Water, steam, oil |
| Z45T-10 | |||||
| Z45W-10 | ≤100 ℃ | Oil, gas | |||
Third, Z45 cast iron dark rod valve main parts and materials
| model | Body, bonnet, gate | gate | Sealing ring | Stem nut | Valve stem | filler |
| Z45H-10 |
Gray cast iron, cast steel |
Carbon steel + alloy steel |
Stainless steel, alloy steel |
bronze |
Carbon steel, stainless steel |
Oil impregnated asbestos packing |
| Z45W-10 | grey cast iron | grey cast iron | brass | Carbon steel | ||
| Z45T-10 | grey cast iron |
Gray cast iron + brass |
brass | Carbon steel, brass |
Fourth, Z45 cast iron dark bar gate valve main dimensions and weight
| DN (mm) | Size (mm) |
Weight (kg) |
|||||||
| L | D | D1 | D2 | b | Zd | H | D0 | ||
| 50 | 180 | 160 | 125 | 100 | 20 | 4-18 | 345 | 180 | 17 |
| 65 | 195 | 180 | 145 | 120 | 20 | 4-18 | 376 | 180 | 20 |
| 80 | 210 | 195 | 160 | 135 | 22 | 4-18 | 417 | 200 | 27 |
| 100 | 230 | 215 | 180 | 155 | 22 | 8-18 | 460 | 200 | 50 |
| 125 | 255 | 245 | 210 | 185 | 24 | 8-18 | 525 | 240 | 70 |
| 150 | 280 | 280 | 240 | 210 | 24 | 8-23 | 567 | 240 | 95 |
| 200 | 330 | 335 | 295 | 265 | 26 | 8-23 | 705 | 320 | 150 |
| 250 | 380 | 390 | 350 | 320 | 28 | 12-23 | 800 | 320 | 200 |
| 300 | 420 | 440 | 400 | 368 | 28 | 12-23 | 886 | 400 | 280 |
| 350 | 450 | 500 | 460 | 428 | 30 | 16-23 | 968 | 400 | 360 |
| 400 | 480 | 565 | 515 | 482 | 32 | 16-25 | 1090 | 500 | 500 |
| 450 | 510 | 615 | 565 | 538 | 32 | 20-25 | 1175 | 500 | 590 |
| 500 | 540 | 670 | 620 | 585 | 34 | 20-25 | 1414 | 720 | 680 |
| 600 | 600 | 780 | 725 | 685 | 36 | 20-30 | 1593 | 720 | 951 |
| 700 | 660 | 895 | 840 | 800 | 40 | 24-30 | 1812 | 800 | 1950 |
