DZ41Y-低温闸阀-永嘉县明科阀门有限公司

低温闸阀结构紧凑、体积小、刚性好、安全可靠。关闭件（闸板）采用弹性结构，在工作中能自动补偿由于异常负荷或温度引起的阀体变形。因此，密封可靠，并且不会产生闸板楔死。阀座可为更换式阀座，可以任意组合与关闭件密封面材质的配对，以满足工况要求，延长使用寿命

低温闸阀的种类 ,按密封面配置可分为楔式闸板式闸阀和平行闸板式闸阀 , 楔式闸板式闸阀又可分为:单闸极式、双闸板式和弹性闸板式；平行闸板式闸阀可分为单闸板式和双闸板式。按阀杆的螺纹位置划分，可分为明杆闸阀和暗杆闸阀两种。
　开启阀门时，当闸板提升高度等于阀门通径的1：1倍时，流体的通道*畅通，但在运行时，此位置是无法监视的。实际使用时，是以阀杆的顶点作为标志，即开不动的位置，作为它的全开位置。为考虑温度变化出现锁死现象 , 通常在开到顶点位置上 , 再倒回 1/2－1圈 , 作为全开阀门的位置
的安装与维护应注意以下事项：
（1）手轮、手柄及传动机构均不允许作起吊用，并严禁碰撞。
（2）双闸板闸阀应垂直安装（即阀杆处于垂直位置 , 手轮在顶部）。
（3）有旁通阀的闸阀在开启前应先打开旁通阀（以平衡进出口的压差及减小开启力）。
（4）带传动机构的闸阀，按产品使用说明书的规定安装。
（5）如果阀门经常开关使用 , 每月至少润滑一次。

的主体材料及尺寸

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
"订货须知：
　　
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