- 品牌/商標：中國東錦
- 企業類型：制造商
- 原產地：溫州龍灣
截止閥是一種常用的截斷閥，主要用來接通或截斷管路中的介質，一般不用于調節流量。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。
截止閥的主要優點：
1）與閘閥相比，截止閥的結構較簡單，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。
3）啟閉時閥瓣行程較小，啟閉時間較短，閥門高度較小。
主要零件材料及性能規范
|
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 |
碳鋼堆焊硬質合金或不銹鋼 |
鉻鎳鈦不銹鋼 堆焊硬質合金 |
鉻鎳鉬鈦不銹鋼 堆焊硬質合金 |
超低碳不銹鋼 |
鉻鉬合金鋼 堆焊硬質合金 |
不銹鋼堆焊硬質合金 | |||
|
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 |
適用介質 |
水、蒸汽、油品 |
硝酸類 |
醋酸類 |
尿素、甲銨液等 |
水、蒸汽、石油及石油產品 |
氨氣、液氨 | ||
|
適用溫度℃ |
≤425 |
≤200 |
≤200 |
≤200 |
≤550 |
-45～150 | |||
|
型號 |
公稱 通徑 NPS(in) |
壓力級 Class |
主要結構尺寸(mm) |
閥體 材料 |
性能規范 | ||||
|
Do |
D |
L |
H |
適用溫度(℃) |
適用介質 | ||||
|
SFJ |
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 |
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 |
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 |
" |
" |
" |
