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傳真：0577-67366162
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產(chǎn)品展示
API焊接截止閥
截止閥是一種常用的截?cái)嚅y，主要用來(lái)接通或截?cái)喙苈分械慕橘|(zhì)，一般不用于調(diào)節(jié)流量。截止閥適用的壓力、溫度范圍很大，但一般用于中、小口徑的管道。
截止閥的主要優(yōu)點(diǎn)：
1）與閘閥相比，截止閥的結(jié)構(gòu)較簡(jiǎn)單，制造與維修都較方便。
2）密封面不易磨損、擦傷，密封性較好，壽命較長(zhǎng)。
3）啟閉時(shí)閥瓣行程較小，啟閉時(shí)間較短，閥門高度較小。
截止閥的主要優(yōu)點(diǎn)：
1）與閘閥相比，截止閥的結(jié)構(gòu)較簡(jiǎn)單，制造與維修都較方便。
2）密封面不易磨損、擦傷，密封性較好，壽命較長(zhǎng)。
3）啟閉時(shí)閥瓣行程較小，啟閉時(shí)間較短，閥門高度較小。
主要零件材料及性能規(guī)范
|
主要零部件
|
閥體
閥蓋
|
碳鋼
|
鉻鎳鈦不銹鋼
|
鉻鎳鉬鈦不銹鋼
|
超低碳不銹鋼
|
鉻鉬合金鋼
|
低溫碳鋼
|
||
|
閥瓣
閥座
|
碳鋼堆焊硬質(zhì)合金或不銹鋼
|
鉻鎳鈦不銹鋼
堆焊硬質(zhì)合金
|
鉻鎳鉬鈦不銹鋼
堆焊硬質(zhì)合金
|
超低碳不銹鋼
|
鉻鉬合金鋼
堆焊硬質(zhì)合金
|
不銹鋼堆焊硬質(zhì)合金
|
|||
|
閥桿
|
鉻不銹鋼
|
鉻鎳鈦不銹鋼
|
鉻鎳鉬鈦不銹鋼
|
超低碳不銹鋼
|
鉻鉬合金鋼
|
不銹鋼
|
|||
|
填料
|
石墨石棉盤根
|
浸聚四氟乙烯石棉盤根
|
柔性石墨石棉盤根
|
浸聚四氟乙烯石棉盤根
|
|||||
|
墊片
|
石棉墊片
|
不銹鋼帶四氟乙烯纏繞墊片
|
柔性石墨+不銹鋼
|
聚四氟乙烯
|
|||||
|
閥桿螺母
|
高鎳球鐵/ZguAL10Fe3
|
||||||||
|
主要參數(shù)
|
適用介質(zhì)
|
水、蒸汽、油品
|
硝酸類
|
醋酸類
|
尿素、甲銨液等
|
水、蒸汽、石油及石油產(chǎn)品
|
氨氣、液氨
|
||
|
適用溫度℃
|
≤425
|
≤200
|
≤200
|
≤200
|
≤550
|
-45～150
|
|||
|
型號(hào)
|
公稱
通徑
NPS(in)
|
壓力級(jí)
Class
|
主要結(jié)構(gòu)尺寸(mm)
|
閥體
材料
|
性能規(guī)范
|
||||
|
Do
|
D
|
L
|
H
|
適用溫度(℃)
|
適用介質(zhì)
|
||||
|
SFJ-61C150C
|
2"
|
150
|
200
|
|
203
|
380
|
WCB
|
≤425
|
蒸氣、油品、水等
|
|
"
|
3"
|
"
|
250
|
|
241
|
465
|
"
|
"
|
"
|
|
''
|
4"
|
"
|
300
|
|
292
|
530
|
"
|
"
|
"
|
|
"
|
6"
|
"
|
350
|
|
406
|
650
|
"
|
"
|
"
|
|
"
|
8"
|
"
|
400
|
|
495
|
760
|
"
|
"
|
"
|
|
"
|
10"
|
"
|
500
|
|
622
|
860
|
"
|
"
|
"
|
|
"
|
12"
|
"
|
600
|
|
699
|
1000
|
"
|
"
|
"
|
|
"
|
14"
|
"
|
600
|
|
787
|
1050
|
"
|
"
|
"
|
|
"
|
16"
|
"
|
750
|
|
914
|
1150
|
"
|
"
|
"
|
|
SFJ-61C300C
|
2"
|
300
|
200
|
|
267
|
425
|
WCB
|
≤425
|
蒸氣、油品、水等
|
|
"
|
3"
|
"
|
250
|
|
318
|
530
|
"
|
"
|
"
|
|
"
|
4"
|
"
|
300
|
|
356
|
610
|
"
|
"
|
"
|
|
"
|
6"
|
"
|
400
|
|
445
|
790
|
"
|
"
|
"
|
|
"
|
8"
|
"
|
500
|
|
559
|
870
|
"
|
"
|
"
|
|
"
|
10"
|
"
|
500
|
|
622
|
1040
|
"
|
"
|
"
|
|
"
|
12"
|
"
|
600
|
|
711
|
1140
|
"
|
"
|
"
|
|
"
|
14"
|
"
|
750
|
|
838
|
1200
|
"
|
"
|
"
|
|
"
|
16"
|
"
|
850
|
|
864
|
1400
|
"
|
"
|
"
|
|
SFJ-61C600C
|
2"
|
600
|
250
|
|
292
|
475
|
WCB
|
≤425
|
蒸氣、油品、水等
|
|
"
|
3"
|
"
|
300
|
|
356
|
585
|
"
|
"
|
"
|
|
"
|
4"
|
"
|
350
|
|
432
|
675
|
"
|
"
|
"
|
|
"
|
6"
|
"
|
450
|
|
559
|
885
|
"
|
"
|
"
|
|
"
|
8"
|
"
|
500
|
|
660
|
945
|
"
|
"
|
"
|
|
"
|
10"
|
"
|
600
|
|
787
|
1040
|
"
|
"
|
"
|
|
"
|
12"
|
"
|
750
|
|
838
|
1280
|
"
|
"
|
"
|
|
"
|
14"
|
"
|
850
|
|
889
|
1350
|
"
|
"
|
"
|
|
"
|
16"
|
"
|
960
|
|
991
|
1550
|
"
|
"
|
"
|
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