| 產品說明： | | 一、產品[低溫截止（節流）閥]的詳細資料: 產品名稱：低溫截止（節流）閥 產品特點：國標低溫截止閥,國標低溫節流閥,低溫截止閥
二、執行標準： | 設計與制造 | 結構長度 | 浩蘭尺寸 | 壓力-溫度 | 試驗-檢驗 | | JB/T7749 | GB12221 | JB79 | GB9131 | JB/T9092 |
三、壓力試驗：
| 公稱壓力PN | 1.6 | 2.5 | 4.0 | | 強度試驗 | 2.4 | 3.8 | 6.0 | | 水密封試驗 | 1.8 | 2.8 | 4.4 | | 上密封試驗 | 1.8 | 2.8 | 4.4 | | 氣密封試驗 | 0.4-0.7 |
四、主要零件材料及性能：
| 體蓋板 | 閥桿 | 密封面 | 墊片 | 埴料 | 工作溫度℃ | 適用介質 | | LCB | 1Cr17Ni12 | DTL/DTL | 1Cr13/柔性石墨低溫石棉 | PTFE
浸四氟乙
烯石棉繩
柔性石墨 | -46 | 丙烷/丙烯
甲醇,乙烷
煤氣/液氨 | | LC1 | -60 | | LC2 | -73 | | LC3 | 1Cr18Ni9Ti | -101 | | LC4 | -115 | | LC8 | -196 |
五、國標低溫截止閥(節流)閥 PNl.6MPa一4.0MPa 規格主要尺寸：
| 1.6MPa | DN | L | D | D1 | D2 | b | n-Φd | H | D0 | | -46℃ | 4-101℃ | -196℃ | | 凸面法蘭
RF
DJ41Y-16L
DJ41Y-16L C1
DJ41Y-16L C2 DJ41Y-16L C3
DJ41Y-16L C4 DJ41Y-16P
DJ41Y-16R | 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 | 520 | 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 | | 凸面法蘭
RF
DJ41Y-25L
DJ41Y-25L C1
DJ41Y-25L C2 DJ41Y-25L C3
DJ41Y-25L C4 DJ41Y-25P
DJ41Y-25R | 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 | | 凸面法蘭
RF
DJ41Y-40L
DJ41Y-40L C1
DJ41Y-40L C2 DJ41Y-40L C3
DJ41Y-40L C4 DJ41Y-40P
DJ41Y-40R | 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 | | | | |
