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Gas gate valve is devoted to natural gas, qualified gas, coal gas. The valve has unique design, novel structure, highly improving service life and sealing, realizing non-leakage.
Characteristic:
1. Adopting forging structure;
2. Base adopts O-ring and floating structure, realizing two-way seal. Torque is only 1/2 of general valve.
3. PTFE is set in seal face. Seal face can clean dunghill on disc.
4. Seal face is protected from direct washing out of medium, no mater disc is closed or not, highly improving service life.
5. The channel is a line when valve opened completely. For that, valve has low coefficient of flow resistance and no pressure losses.
Standards
Design: API 600
Flange: ANSI B 16.5
Length: ANSI B 16.10
Pressure-temperature: ANSI B 16.34
Testing & inspection: API 598
Parameter
Pressure | Ordinary temperature testing pressure(MPa) | Applicable temperature | Applicable medium | |||||
Shell testing | Left sealing | Right sealing | Low pressure sealing | Common type | Sulfur resistant type | |||
Nominal Pressure PN(MPa) | 1.6 | 2.4 | 1.76 | 1.76 | 0.6 | -29~121℃ or base on requirements | Non corrosive medium | Petroleum, gas |
2.5 | 3.75 | 2.75 | 2.75 | 0.6 | ||||
4.0 | 6.0 | 4.4 | 4.4 | 0.6 | ||||
6.4 | 9.6 | 7.04 | 7.04 | 0.6 | ||||
Class(Lb) | 150 | 3.0 | 2.2 | 2.2 | 0.6 | |||
300 | 7.5 | 5.5 | 5.5 | 0.6 | ||||
Dimensions
DN | NPS | Flange | Butt welding | Manual | Gear operated | Gear device | Electric | ||||||
L | L1 | H | H1 | D0 | H | H1 | D0 | H | H1 | D0 | |||
25 | 1 | 165 | - | 85 | 228 | 180 | - | - | - | - | - | - | - |
32 | 11/4 | 165 | - | 103 | 231 | 180 | - | - | - | - | - | - | - |
40 | 11/2 | 178 | - | 115 | 240 | 250 | - | - | - | - | - | - | - |
50 | 2 | 178 | 216 | 130 | 255 | 250 | - | - | - | - | - | - | - |
65 | 21/2 | 190 | 241 | 160 | 355 | 300 | - | - | - | - | - | - | - |
80 | 3 | 203 | 283 | 180 | 360 | 300 | - | - | - | - | - | - | - |
100 | 4 | 229 | 305 | 214 | 400 | 300 | - | - | - | - | - | - | - |
125 | 5 | 254 | 381 | 257 | 460 | 350 | - | - | - | - | - | - | - |
150 | 6 | 267 | 403 | 300 | 500 | 350 | - | - | - | - | - | - | - |
200 | 8 | 292 | 419 | 388 | 570 | 350 | - | - | - | - | - | - | - |
250 | 10 | 330 | 457 | 475 | 680 | 400 | 475 | 700 | 350 | 0 type | 475 | 710 | 500 |
300 | 12 | 356 | 502 | 547 | 750 | 450 | 547 | 870 | 350 | 0 type | 547 | 880 | 305 |
350 | 14 | 381 | 572 | 625 | 875 | 450 | 625 | 995 | 450 | 1 type | 625 | 1015 | 305 |
400 | 16 | 406 | 610 | 712 | 1000 | 500 | 712 | 1120 | 450 | 1 type | 712 | 1130 | 305 |
450 | 18 | 432 | 660 | 785 | 1130 | 500 | 785 | 1280 | 450 | 1 type | 785 | 1360 | 305 |
500 | 20 | 457 | 711 | 880 | 1200 | 600 | 880 | 1350 | 450 | 1 type | 880 | 1430 | 305 |
600 | 24 | 508 | 813 | 1045 | 1420 | 800 | 1045 | 1570 | 500 | 2 type | 1045 | 1650 | 305 |
700 | 28 | 610 | 914 | 1190 | 1650 | 800 | 1190 | 1800 | 500 | 2 type | 1190 | 1910 | 305 |
800 | 32 | 660 | 914 | 1360 | 1880 | 1000 | 1360 | 2040 | 500 | 2 type | 1360 | 2140 | 305 |
900 | 36 | 771 | 1016 | 1510 | 2100 | 1000 | 1510 | 2280 | 600 | 3 type | 1510 | 2390 | 458 |
1000 | 40 | 811 | - | 1715 | 2300 | 1200 | 1715 | 2480 | 600 | 3 type | 1715 | 2590 | 458 |
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