低温闸阀
闸阀是最常用的截断阀之一，主要用来接通或截断管路中的介质，不适用于调节介质流量。闸阀适用的压力、温度及口径范围很大，尤其适用于中、大口径的管道。
闸阀的主要优点：
（1）流体阻力小。闸阀闸体内部介质通道是直通的，介质流经闸阀时不改变其流动方向，因而流动阻力较小。
（2）启闭较省力。启闭时闸板运动方向与介质流动方向相垂直。与截止阀相比，闸阀的启闭较为省力。
（3）介质流动方向一般不受限制。介质可从闸阀两侧任意方向流过，均能达到接通或截断的目的。便于安装，适用于介质的流动方向可能改变的管路中。
主要零件材料及性能规范
|
主要零部件 |
阀体
阀盖 |
碳钢 |
铬镍钛不锈钢 |
铬镍钼钛不锈钢 |
超低碳不锈钢 |
铬钼合金钢 |
低温碳钢 |
|
闸板
阀座 |
碳钢堆焊硬质合金或不锈钢 |
铬镍钛不锈钢
堆焊硬质合金 |
铬镍钼钛不锈钢
堆焊硬质合金 |
超低碳不锈钢 |
铬钼合金钢
堆焊硬质合金 |
不锈钢堆焊硬质合金 |
|
阀杆 |
铬不锈钢 |
铬镍钛不锈钢 |
铬镍钼钛不锈钢 |
超低碳不锈钢 |
铬钼合金钢 |
不锈钢 |
|
填料 |
石墨石棉盘根 |
浸聚四氟乙烯石棉盘根 |
柔性石墨石棉盘根 |
浸聚四氟乙烯石棉盘根 |
|
垫片 |
石棉垫片 |
不锈钢带四氟乙烯缠绕垫片 |
柔性石墨+不锈钢 |
聚四氟乙烯 |
|
阀杆螺母 |
高镍球铁/ZguAL10Fe3 |
|
主要参数 |
适用介质 |
水、蒸汽、油品 |
硝酸类 |
醋酸类 |
尿素、甲铵液等 |
水、蒸汽、石油及石油产品 |
氨气、液氨 |
|
适用温度℃ |
≤425 |
≤200 |
≤200 |
≤200 |
≤550 |
-45～150 |
|
型号 |
公称 |
主要结构尺寸(mm) |
阀体
材料 |
性能规范 |
|
通径 DN(mm) |
压力 PN(MPa) |
D |
D0 |
L |
H |
适用温度(℃) |
适用介质 |
|
SFD46Z-40C150C |
1/2" |
150 |
89 |
140 |
108 |
345 |
LCB |
≥-46 |
NH3、丙烷 |
|
" |
3/4" |
" |
98 |
150 |
117 |
355 |
" |
" |
" |
|
" |
1" |
" |
108 |
150 |
127 |
454 |
" |
" |
" |
|
" |
2" |
" |
152 |
200 |
178 |
481 |
" |
" |
" |
|
" |
3" |
" |
190 |
230 |
203 |
574 |
" |
" |
" |
|
" |
4" |
" |
229 |
280 |
229 |
708 |
" |
" |
" |
|
" |
6" |
" |
279 |
330 |
267 |
946 |
" |
" |
" |
|
" |
8" |
" |
343 |
380 |
292 |
1118 |
" |
" |
" |
|
" |
10" |
" |
406 |
460 |
330 |
1312 |
" |
" |
" |
|
" |
12" |
" |
483 |
510 |
356 |
1547 |
" |
" |
" |
|
" |
14" |
" |
533 |
560 |
381 |
1811 |
" |
" |
" |
|
" |
16" |
" |
597 |
560 |
406 |
2002 |
" |
" |
" |
|
" |
18" |
" |
635 |
610 |
432 |
2256 |
" |
" |
" |
|
" |
20" |
" |
698 |
760 |
457 |
2532 |
" |
" |
" |
|
" |
24" |
" |
813 |
810 |
508 |
3000 |
" |
" |
" |
|
SFD101Z-40C150C |
1/2" |
150 |
89 |
140 |
108 |
405 |
LC3 |
≥-101 |
乙烯等 |
|
" |
3/4" |
" |
98 |
150 |
117 |
415 |
" |
" |
" |
|
" |
1" |
" |
108 |
150 |
127 |
514 |
" |
" |
" |
|
" |
2" |
" |
152 |
200 |
178 |
591 |
" |
" |
" |
|
" |
3" |
" |
190 |
230 |
203 |
634 |
" |
" |
" |
|
" |
4" |
" |
229 |
280 |
229 |
768 |
" |
" |
" |
|
" |
6" |
" |
279 |
330 |
267 |
1006 |
" |
" |
" |
|
" |
8" |
" |
343 |
380 |
292 |
1128 |
" |
" |
" |
|
" |
10" |
" |
406 |
460 |
330 |
1372 |
" |
" |
" |
|
" |
12" |
" |
483 |
510 |
356 |
1607 |
" |
" |
" |
|
" |
14" |
" |
533 |
560 |
381 |
1871 |
" |
" |
" |
|
" |
16" |
" |
597 |
560 |
406 |
2062 |
" |
" |
" |
|
" |
18" |
" |
635 |
610 |
432 |
2316 |
" |
" |
" |
|
" |
20" |
" |
698 |
760 |
457 |
2592 |
" |
" |
" |
|
" |
24" |
" |
813 |
810 |
508 |
3060 |
" |
" |
" |
|
SFD196Z-40C150P |
1/2" |
150 |
89 |
140 |
108 |
405 |
ZGOCr18Ni9 |
≥-196 |
液氨、乙烯、液化天然气等 |
|
" |
3/4" |
" |
98 |
150 |
117 |
415 |
" |
" |
" |
|
" |
1" |
" |
108 |
150 |
127 |
514 |
" |
" |
" |
|
" |
2" |
" |
152 |
200 |
178 |
591 |
" |
" |
" |
|
" |
3" |
" |
190 |
230 |
203 |
634 |
" |
" |
" |
|
" |
4" |
" |
229 |
280 |
229 |
768 |
" |
" |
" |
|
" |
6" |
" |
279 |
330 |
267 |
1006 |
" |
" |
" |
|
" |
8" |
" |
343 |
380 |
292 |
1128 |
" |
" |
" |
|
" |
10" |
" |
406 |
460 |
330 |
1372 |
" |
" |
" |
|
" |
12" |
" |
483 |
510 |
356 |
1607 |
" |
" |
" |
|
" |
14" |
" |
533 |
560 |
381 |
1871 |
" |
" |
" |
|
SFD196Z-40C150P |
16" |
150 |
597 |
560 |
406 |
2062 |
ZGOCr18Ni9 |
≥-196 |
液氨、乙烯、液化天然气等 |
|
" |
18" |
" |
635 |
610 |
432 |
2316 |
" |
" |
" |
|
" |
20" |
" |
698 |
760 |
457 |
2592 |
" |
" |
" |
|
" |
24" |
" |
813 |
810 |
508 |
3060 |
" |
" |
" |
|
SFD46Z-540C150C |
16" |
150 |
597 |
560 |
406 |
2002 |
LCB |
≥-46 |
NH3、丙烷 |
|
" |
18" |
" |
635 |
610 |
432 |
2256 |
" |
" |
" |
|
" |
20" |
" |
698 |
760 |
457 |
2532 |
" |
" |
" |
|
" |
24" |
" |
813 |
810 |
508 |
300 |
" |
" |
" |
|
SFD101Z-540C150C |
16" |
150 |
597 |
560 |
406 |
2062 |
LC3 |
≥-101 |
乙烯等 |
|
" |
18" |
" |
635 |
610 |
432 |
2316 |
" |
" |
" |
|
" |
20" |
" |
698 |
760 |
457 |
2592 |
" |
" |
" |
|
" |
24" |
" |
813 |
810 |
508 |
3060 |
" |
" |
" |
|
SFD196Z-540C150P |
16" |
150 |
597 |
560 |
406 |
2062 |
ZGOCr18Ni9 |
≥-196 |
液氨、乙烯、液化天然气等 |
|
" |
18" |
" |
635 |
610 |
432 |
2316 |
" |
" |
" |
|
" |
20" |
" |
698 |
760 |
457 |
2592 |
" |
" |
" |
|
" |
24" |
" |
813 |
810 |
508 |
3060 |
" |
" |
" |
|
SFD46Z-40C300C |
1/2" |
300 |
|
|
|
|
LCB |
≥-46 |
NH3、丙烷 |
|
" |
3/4" |
" |
|
|
|
|
" |
" |
" |
|
" |
1" |
" |
|
|
|
|
" |
" |
" |
|
" |
2" |
" |
165 |
230 |
216 |
501 |
" |
" |
" |
|
" |
3" |
" |
210 |
280 |
283 |
603 |
" |
" |
" |
|
" |
4" |
" |
254 |
330 |
305 |
727 |
" |
" |
" |
|
" |
6" |
" |
318 |
380 |
403 |
969 |
" |
" |
" |
|
" |
8" |
" |
381 |
460 |
419 |
1175 |
" |
" |
" |
|
" |
10" |
" |
444 |
510 |
457 |
1426 |
" |
" |
" |
|
" |
12" |
" |
521 |
510 |
502 |
1611 |
" |
" |
" |
|
" |
14" |
" |
584 |
560 |
762 |
2014 |
" |
" |
" |
|
" |
16" |
" |
648 |
610 |
838 |
2230 |
" |
" |
" |
|
" |
18" |
" |
|
|
|
|
" |
" |
" |
|
" |
20" |
" |
|
|
|
|
" |
" |
" |
|
" |
24" |
" |
|
|
|
|
" |
" |
" |
|
SFD101Z-40C300C |
1/2" |
300 |
|
|
|
|
LC3 |
≥-101 |
乙烯等 |
|
" |
3/4" |
" |
|
|
|
|
" |
" |
" |
|
" |
1" |
" |
|
|
|
|
" |
" |
" |
|
" |
2" |
" |
165 |
230 |
216 |
561 |
" |
" |
" |
|
" |
3" |
" |
210 |
280 |
283 |
673 |
" |
" |
" |
|
" |
4" |
" |
254 |
330 |
305 |
797 |
" |
" |
" |
|
" |
6" |
" |
318 |
380 |
403 |
1039 |
" |
" |
" |
|
" |
8" |
" |
381 |
460 |
419 |
1245 |
" |
" |
" |
|
" |
10" |
" |
444 |
510 |
457 |
1496 |
" |
" |
" |
|
SFD101Z-40C300C |
12" |
300 |
521 |
510 |
502 |
1671 |
LC3 |
≥-101 |
乙烯等 |
|
" |
14" |
" |
584 |
560 |
762 |
2084 |
" |
" |
" |
|
" |
16" |
" |
648 |
610 |
832 |
2300 |
" |
" |
" |
|
" |
18" |
" |
|
|
|
|
" |
" |
" |
|
" |
20" |
" |
|
|
|
|
" |
" |
" |
|
" |
24" |
" |
|
|
|
|
" |
" |
" |
|
SFD196Z-40C300P |
1/2" |
300 |
|
|
|
|
ZGOCr18Ni9 |
≥-196 |
液氨、乙烯、液化天然气等 |
|
" |
3/4" |
" |
117 |
150 |
152 |
497 |
" |
" |
" |
|
" |
1" |
" |
124 |
150 |
165 |
522 |
" |
" |
" |
|
" |
2" |
" |
165 |
230 |
216 |
561 |
" |
" |
" |
|
" |
3" |
" |
210 |
280 |
283 |
673 |
" |
" |
" |
|
" |
4" |
" |
254 |
330 |
305 |
797 |
" |
" |
" |
|
" |
6" |
" |
318 |
380 |
403 |
1039 |
" |
" |
" |
|
" |
8" |
" |
381 |
460 |
419 |
1245 |
" |
" |
" |
|
" |
10" |
" |
444 |
510 |
457 |
1496 |
" |
" |
" |
|
" |
12" |
" |
521 |
510 |
502 |
1671 |
" |
" |
" |
|
" |
14" |
" |
584 |
560 |
762 |
2084 |
" |
" |
" |
|
" |
16" |
" |
648 |
610 |
838 |
2300 |
" |
" |
" |
|
" |
18" |
" |
|
|
|
|
" |
" |
" |
|
" |
20" |
" |
|
|
|
|
" |
" |
" |
|
" |
24" |
" |
|
|
|
|
" |
" |
" |
|
SFD46Z-40C600C |
1/2" |
600 |
|
|
|
|
LF1 |
≥-46 |
NH3、丙烷 |
|
" |
3/4" |
" |
35 |
140 |
92 |
382 |
" |
" |
" |
|
" |
1" |
" |
41 |
180 |
111 |
447 |
" |
" |
" |
|
" |
11/2" |
" |
57 |
180 |
141 |
499 |
" |
" |
" |
|
" |
2" |
" |
165 |
250 |
292 |
580 |
" |
" |
" |
|
" |
3" |
" |
210 |
300 |
356 |
790 |
" |
" |
" |
|
" |
4" |
" |
273 |
350 |
432 |
946 |
" |
" |
" |
|
" |
6" |
" |
356 |
510 |
559 |
1255 |
" |
" |
" |
|
SFD101Z-40C600C |
3/4" |
600 |
38 |
140 |
92 |
422 |
LC3 |
≥-101 |
乙烯等 |
|
" |
1" |
" |
55 |
180 |
127 |
497 |
" |
" |
" |
|
" |
11/2" |
" |
70 |
180 |
200 |
560 |
" |
" |
" |
|
" |
2" |
" |
165 |
250 |
292 |
640 |
" |
" |
" |
|
" |
3" |
" |
210 |
300 |
356 |
860 |
" |
" |
" |
|
" |
4" |
" |
273 |
350 |
432 |
1010 |
" |
" |
" |
|
" |
6" |
" |
356 |
510 |
559 |
1320 |
" |
" |
" |
|
SFD196Z-40C600P |
1/2" |
600 |
20 |
150 |
92 |
400 |
OCr18Ni9 |
≥-196 |
液氨、乙烯、液化天然气等 |
|
" |
3/4" |
" |
35 |
150 |
92 |
422 |
" |
" |
" |
|
" |
1" |
" |
41 |
180 |
133 |
497 |
" |
" |
" |
|
SFD196Z-40C600P |
11/2" |
600 |
57 |
180 |
152 |
560 |
OCr18Ni9 |
≥-196 |
液氨、乙烯、液化天然气等 |
|
" |
2" |
" |
165 |
250 |
292 |
640 |
" |
" |
" |
|
" |
3" |
" |
210 |
300 |
356 |
860 |
" |
" |
" |
|
" |
4" |
" |
273 |
350 |
432 |
1010 |
" |
" |
" |
|
" |
6" |
" |
356 |
510 |
559 |
1320 |
" |
" |
" | |
产品详细信息
