First, DJ41Y cryogenic shut-off valve Overview:
DJ41Y cryogenic shut-off valve for low temperature liquid storage and transportation equipment management system, with a switch flexible, reliable sealing characteristics can also be used for other low temperature and cryogenic medium management system.
Second, DJ41Y cryogenic shut-off valve structure Photo:
Third, DJ41Y cryogenic valve performance standards:
Design and manufacture | Structure length | Holand size | Pressure - Temperature | Test - test |
JB / T7749 | GB12221 | JB79 | GB9131 | JB / T9092 |
Fourth, DJ41Y cryogenic shut-off valve pressure test:
Nominal pressure | 1.6 | 2.5 | 4.0 |
Strength test | 2.4 | 3.8 | 6.0 |
Water seal test | 1.8 | 2.8 | 4.4 |
Seal test | 1.8 | 2.8 | 4.4 |
Gas seal test | 0.4-0.7 |
Five , DJ41Y cryogenic valve parts material:
Body cover | Valve stem | Sealing surface | Gasket | 埴 material | Operating temperature ℃ | Suitable media |
LCB | 1Cr17Ni12 | DTL / DTL | 1Cr13 / flexible graphite low temperature asbestos | PTFE | -46 | Propane / Propylene |
LC1 | -60 | |||||
LC2 | -73 | |||||
LC3 | 1Cr18Ni9Ti | -101 | ||||
LC4 | -115 | |||||
LC8 | -196 |
Six, DJ41Y cryogenic shut-off valve main dimensions:
1.6MPa | DN | L | D | D1 | D2 | b | n-Φd | H | D0 | ||
-46 ° C | 4 ~ 101 ℃ | -196 ° C | |||||||||
Convex flange | 50 | 230 | 160 | 125 | 100 | 16 | 4-Φ18 | 460 | 480 | 520 | 240 |
65 | 290 | 180 | 145 | 120 | 18 | 4-Φ18 | 475 | 505 | 525 | 280 | |
80 | 310 | 195 | 160 | 135 | 20 | 8-Φ18 | 5, 20 | 550 | 590 | 280 | |
100 | 350 | 215 | 180 | 155 | 20 | 8-Φ18 | 545 | 575 | 615 | 320 | |
125 | 400 | 245 | 210 | 185 | 22 | 8-Φ18 | 590 | 620 | 660 | 360 | |
150 | 480 | 280 | 240 | 210 | 24 | 8-Φ23 | 650 | 680 | 730 | 400 | |
200 | 600 | 335 | 295 | 265 | 26 | 12-Φ23 | 850 | 880 | 930 | 400 | |
250 | 730 | 405 | 355 | 320 | 30 | 12-Φ25 | 956 | 986 | 1036 | 450 | |
300 | 850 | 460 | 410 | 375 | 30 | 12-Φ25 | 1095 | 1125 | 1175 | 500 | |
2.5MPa | 50 | 230 | 160 | 125 | 100 | 20 | 4-Φ18 | 460 | 460 | 520 | 240 |
Convex flange | 65 | 290 | 180 | 145 | 120 | 22 | 8-Φ18 | 475 | 505 | 525 | 280 |
80 | 310 | 195 | 160 | 135 | 22 | 8-Φ18 | 520 | 550 | 590 | 280 | |
100 | 350 | 230 | 190 | 160 | 24 | 8-Φ23 | 545 | 575 | 615 | 320 | |
125 | 400 | 270 | 220 | 188 | 28 | 8-Φ25 | 590 | 620 | 660 | 360 | |
150 | 480 | 300 | 250 | 218 | 30 | 8-Φ25 | 650 | 680 | 730 | 400 | |
200 | 600 | 360 | 310 | 278 | 34 | 12-Φ25 | 850 | 880 | 930 | 400 | |
250 | 730 | 425 | 370 | 332 | 36 | 12-Φ30 | 956 | 986 | 1036 | 450 | |
300 | 850 | 485 | 430 | 390 | 40 | 16-Φ30 | 1095 | 1125 | 1175 | 500 | |
4.0MPa | 50 | 230 | 160 | 125 | 100 | 20 | 4-Φ18 | 483 | 504 | 546 | 240 |
Convex flange | 65 | 290 | 180 | 145 | 120 | 22 | 8-Φ18 | 499 | 530 | 551 | 280 |
80 | 310 | 195 | 160 | 135 | 22 | 8-Φ18 | 546 | 578 | 620 | 280 | |
100 | 350 | 230 | 190 | 160 | 24 | 8-Φ23 | 572 | 604 | 646 | 320 | |
125 | 400 | 270 | 220 | 188 | 28 | 8-Φ25 | 620 | 651 | 693 | 360 | |
150 | 480 | 330 | 2850 | 218 | 30 | 8-Φ25 | 683 | 741 | 767 | 400 | |
200 | 600 | 375 | 320 | 282 | 38 | 12-Φ30 | 893 | 924 | 977 | 400 | |
250 | 730 | 445 | 385 | 345 | 42 | 12-Φ34 | 1004 | 1035 | 1088 | 450 | |
300 | 850 | 510 | 450 | 408 | 46 | 16-Φ34 | 1150 | 1181 | 1234 | 500 |