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English
Views: 14 Author: hong Publish Time: 2020-10-28 Origin: TFW VALVE
Features
1. Compact structure, reasonable design, good valve rigidity, smooth passage, small flow coefficient
2. The sealing surface is made of stainless steel and carbide, with long life
3. Flexible graphite packing, reliable sealing, light and flexible operation
4. The driving mode is manual, pneumatic, electric, gear drive.
5. The structure is elastic wedge single gate, rigid wedge single gate and double gate.
Gate valve drawing and gate valve weight
Performance parameters
Nominal pressurePN（MPa) | case | test pressure（MPa) | Sealed | |
Sealed (liquid) | Seal (gas) | |||
1.6 | 2.4 | 1.8 | 0.6 | 1.8 |
2.5 | 3.8 | 2.8 | 0.6 | 2.8 |
4.0 | 6.0 | 4.4 | 0.6 | 4.4 |
6.4 | 9.6 | 7.0 | 0.6 | 7.0 |
10.0 | 15.0 | 11.0 | 0.6 | 11.0 |
16.0 | 24.0 | 18.0 | 0.6 | 18.0 |
Suitable medium and applicable temperature
Shell material | Suitable media | Applicable temperature (℃) |
Carbon steel (C type) | Water, steam, oil | ≤425 |
Chromium nickel titanium steel (P type) | Nitric acids | ≤200 |
Chrome nickel molybdenum titanium steel (R type) | Acetic acid | ≤200 |
Chrome-molybdenum steel (type I) | Water, steam, oil | ≤550 |
The main part material
Body, bonnet | Valve plate, seat | Valve stem | Stem nut | filler | Handwheel |
Carbon steel | High-quality carbon steel + carbide or stainless steel | Chrome stainless steel | Aluminum bronze | Graphite asbestos packing | Malleable iron |
Chromium nickel titanium steel | Stainless steel, stainless steel + cemented carbide | Chrome nickel-titanium stainless steel | Aluminum bronze | Teflon | Malleable iron |
Chromium nickel molybdenum titanium steel | Stainless steel, stainless steel + cemented carbide | Chrome nickel-titanium stainless steel | Aluminum bronze | Teflon | Malleable iron |
Chrome-molybdenum steel | Alloy steel + Carbide | Chrome-molybdenum steel | Aluminum bronze | Flexible asbestos | Malleable iron |
| Nominal diameter | The main dimensions and connection dimensions | |||||||
L | D | D1 | D2 | b | Z-d | H | D0 | |
Z41H-16C | ||||||||
15 | 130 | 95 | 65 | 45 | 14-2 | 4-Φ14 | 170 | 120 |
20 | 150 | 105 | 75 | 55 | 14-2 | 4-Φ14 | 190 | 140 |
25 | 160 | 115 | 85 | 65 | 14-2 | 4-Φ14 | 205 | 160 |
32 | 180 | 135 | 100 | 78 | 16-2 | 4-Φ18 | 270 | 180 |
40 | 200 | 145 | 110 | 85 | 16-3 | 4-Φ18 | 310 | 200 |
50 | 250 | 160 | 125 | 100 | 16-3 | 4-Φ18 | 358 | 240 |
65 | 265 | 180 | 145 | 120 | 18-3 | 4-Φ18 | 373 | 240 |
80 | 280 | 195 | 160 | 135 | 20-3 | 8-Φ18 | 435 | 280 |
100 | 300 | 215 | 180 | 155 | 20-3 | 8-Φ18 | 500 | 300 |
125 | 325 | 245 | 210 | 185 | 22-3 | 8-Φ18 | 614 | 320 |
150 | 350 | 280 | 240 | 210 | 24-3 | 8-Φ23 | 674 | 360 |
200 | 400 | 335 | 295 | 265 | 26-3 | 12-Φ23 | 811 | 400 |
250 | 450 | 405 | 355 | 320 | 30-3 | 12-Φ25 | 969 | 450 |
300 | 500 | 460 | 410 | 375 | 30-3 | 12-Φ25 | 1145 | 580 |
350 | 550 | 520 | 470 | 435 | 34-4 | 16-Φ25 | 1280 | 640 |
400 | 600 | 580 | 525 | 485 | 36-4 | 16-Φ30 | 1452 | 640 |
Z41H-25 | ||||||||
15 | 130 | 95 | 65 | 45 | 16-2 | 4-Φ14 | 170 | 120 |
20 | 150 | 105 | 75 | 55 | 16-2 | 4-Φ14 | 190 | 140 |
25 | 160 | 115 | 85 | 65 | 16-2 | 4-Φ14 | 205 | 160 |
32 | 180 | 135 | 100 | 78 | 18-2 | 4-Φ18 | 270 | 180 |
40 | 200 | 145 | 110 | 85 | 18-3 | 4-Φ18 | 310 | 200 |
50 | 250 | 160 | 125 | 100 | 20-3 | 4-Φ18 | 358 | 240 |
65 | 265 | 180 | 145 | 120 | 22-3 | 8-Φ18 | 373 | 240 |
80 | 280 | 195 | 160 | 135 | 22-3 | 8-Φ18 | 435 | 280 |
100 | 300 | 230 | 190 | 160 | 24-3 | 8-Φ23 | 500 | 300 |
125 | 325 | 270 | 220 | 188 | 28-3 | 8-Φ25 | 614 | 320 |
150 | 350 | 300 | 250 | 218 | 30-3 | 8-Φ25 | 674 | 360 |
200 | 400 | 360 | 310 | 278 | 34-3 | 12-Φ25 | 811 | 400 |
250 | 450 | 425 | 370 | 332 | 36-3 | 12-Φ30 | 969 | 450 |
300 | 500 | 485 | 430 | 390 | 40-4 | 16-Φ30 | 1145 | 580 |
350 | 550 | 550 | 490 | 448 | 44-4 | 16-Φ34 | 1280 | 640 |
400 | 600 | 610 | 550 | 505 | 48-4 | 16-Φ34 | 1452 | 640 |
