TOBO STEEL GROUP CHINA
TOBO STEEL GROUP CHINA
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Material:
Valve Body/Bonnet:CF8;
Valve Stem:304,316;
Packing:flexible graphite;
Screw Nut:aluminum bronze;
Suitable Medium:water,steam,oil,etc
Suitable Temparature:-29~425℃
Design and Manufacture:Conform to GB/T 12235
Face-to-face:conform to GB/T 12221
Flange connection:conform to JB/T 179.1
Testing:Conform to GB/T 26480
| DN | L | D | D1 | D2 | D6 | b | n-Φd | H | D0 |
|---|---|---|---|---|---|---|---|---|---|
| 15 | 130 | 95 | 65 | 45 | 40 | 16 | 4-Φ14 | 134 | 120 |
| 20 | 150 | 105 | 75 | 55 | 51 | 16 | 4-Φ14 | 188 | 140 |
| 25 | 160 | 115 | 85 | 64 | 58 | 16 | 4-Φ14 | 206 | 140 |
| 32 | 180 | 135 | 100 | 78 | 66 | 18 | 4-Φ18 | 272 | 180 |
| 40 | 200 | 145 | 110 | 85 | 76 | 18 | 4-Φ18 | 322 | 180 |
| 50 | 250 | 160 | 125 | 100 | 88 | 20 | 4-Φ18 | 370 | 240 |
| 65 | 280 | 180 | 145 | 120 | 110 | 22 | 8-Φ18 | 394 | 280 |
| 80 | 310 | 195 | 160 | 135 | 121 | 22 | 8-Φ18 | 455 | 300 |
| 100 | 350 | 230 | 190 | 160 | 150 | 24 | 8-Φ23 | 550 | 320 |
| 125 | 400 | 270 | 220 | 188 | 176 | 28 | 8-Φ25 | 636 | 350 |
| 150 | 450 | 300 | 250 | 218 | 204 | 30 | 8-Φ25 | 706 | 400 |
| 200 | 550 | 375 | 320 | 282 | 260 | 38 | 12-Φ30 | 859 | 450 |
| 250 | 650 | 445 | 385 | 345 | 313 | 42 | 12-Φ34 | 1016 | 560 |
| 300 | 750 | 510 | 450 | 408 | 364 | 46 | 16-Φ34 | 1200 | 640 |
| 350 | 850 | 570 | 510 | 465 | 422 | 52 | 16-Φ34 | 1340 | 640 |
| 400 | 950 | 655 | 585 | 535 | 474 | 58 | 16-Φ41 | 1495 | 720 |
| 450 | 1050 | 680 | 610 | 560 | 524 | 60 | 20-Φ41 | 1581 | 800 |
| 500 | 1150 | 755 | 670 | 612 | 576 | 62 | 20-Φ48 | 1790 | 950 |
| 600 | 1350 | 890 | 695 | 730 | 678 | 62 | 20-Φ54 | 2035 | 950 |
working principle
The opening and closing part of the gate valve is a gate. The movement direction of the gate is perpendicular to the fluid direction. The gate valve can only be fully opened and fully closed, and cannot be adjusted and throttled. The gate has two sealing surfaces. The two sealing surfaces of the most commonly used gate valves form a wedge shape. The wedge angle varies with the valve parameters, usually 5 °, and 2 ° 52 'when the medium temperature is not high.
| NO. | Part name | WCB | LCB | WC6 | WC9 |
| 05 | Bolt and nut | A193 Gr B7/A194 Gr 2H | A320 Gr L7/A194 Gr 4 | A193 Gr B16/A194 Gr 4/7 | A193 Gr B16/A194 Gr 4/7 |
| 04 | Gland Packing | Graphite | Graphite | Graphite | Graphite |
| 03 | Gasket | Spiral wound/Soft lron | Spiral wound/Soft lron | Spiral wound/SS304 | Spiral wound/SS304 |
| 02 | Bonnet | A216 Gr WCB | A352 Gr LCB | A271 Gr WC6 | A271 Gr WC9 |
| 01 | Body | A216 Gr WCB | A352 Gr LCB | A271 Gr WC6 | A271 Gr WC9 |
| NO. | Part name | C5 | C12 | CF8 | CF8M |
| 05 | Bolt and nut | A193 Gr B16/A194 Gr 4/7 | A193 Gr B16/A194 Gr 4/7 | A193 B8/A194 8 | A193 B8M/A194 B8 |
| 04 | Gland Packing | Graphite | Graphite | Graphite | Graphite |
| 03 | Gasket | Spiral wound/Soft lron | Spiral wound/Soft lron | Spiral wound/SS304 | Spiral wound/SS316 |
| 02 | Bonnet | A217 Gr C5 | A217 Gr C12 | A351 Gr CF8 | A351 Gr CF8M |
| 01 | Body | A217 Gr C5 | A217 Gr C12 | A351 Gr CF8 | A351 Gr CF8M |
