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截止阀是一种常用的截断阀，主要用来接通或截断管路中的介质，一般不用于调节流量。截止阀适用的压力、温度范围很大，但一般用于中、小口径的管道。
截止阀的主要优点：
1）与闸阀相比，截止阀的结构较简单，制造与维修都较方便。
2）密封面不易磨损、擦伤，密封性较好，寿命较长。
3）启闭时阀瓣行程较小，启闭时间较短，阀门高度较小。
主要零件材料及性能规范
|
主要零部件 |
阀体、阀盖、 |
WCB |
ZG1Cr18Ni9Ti |
ZG1Cr18Ni12Mo2Ti |
ZG1Cr5Mo |
|
阀瓣 |
1Cr13 |
|
1Cr18Ni12Mo2Ti |
1Cr5Mo |
|
阀杆 |
1Cr13 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
1Cr5Mo |
|
阀杆螺母 |
ZguAL10Fe3/球墨铸铁 |
|
填料 |
柔性石墨、石墨石棉盘根 |
|
主要
参数 |
适用介质 |
蒸汽、油品、水等 |
硝酸类 |
醋酸类 |
蒸汽、油品、水等 |
|
适用温度℃ |
≤425 |
≤200 |
≤200 |
≤425 |
|
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 |
L |
H |
适用温度(℃) |
适用
介质 |
|
J63Y-P55170V |
10 |
P5517.0 |
160 |
298 |
180 |
12Cr1MoV |
≤550 |
高温水、蒸汽 |
|
" |
20 |
" |
180 |
313 |
180 |
" |
" |
" |
|
" |
25 |
" |
200 |
315 |
200 |
" |
" |
" |
|
J963Y-P55170V |
10 |
P5517.0 |
160 |
600 |
520 |
12Cr1MoV |
≤550 |
高温水、蒸汽 |
|
" |
20 |
" |
180 |
610 |
520 |
" |
" |
" |
|
" |
25 |
" |
200 |
620 |
520 |
" |
" |
" |
|
J63Y-250 |
10 |
25.0 |
160 |
290 |
180 |
碳钢 |
≤425 |
蒸汽、水等 |
|
" |
20 |
" |
180 |
313 |
180 |
" |
" |
" |
|
" |
25 |
" |
200 |
315 |
200 |
" |
" |
" |
|
J963Y-250 |
10 |
25.0 |
160 |
600 |
520 |
碳钢 |
≤425 |
蒸汽、水等 |
|
" |
20 |
" |
180 |
610 |
520 |
" |
" |
" |
|
" |
25 |
" |
200 |
620 |
520 |
" |
" |
" |
|
J61Y-320 |
10 |
32.0 |
130 |
262 |
160 |
碳钢 |
≤425 |
蒸汽、水等 |
|
" |
20 |
" |
160 |
287 |
180 |
" |
" |
" |
|
" |
25 |
" |
180 |
330 |
180 |
" |
" |
" |
|
" |
32 |
" |
220 |
425 |
220 |
" |
" |
" |
|
" |
50 |
" |
350 |
545 |
400 |
" |
" |
" |
|
" |
80 |
" |
470 |
1050 |
|
" |
" |
" |
|
J961Y-320 |
10 |
32.0 |
130 |
600 |
520 |
碳钢 |
≤425 |
蒸汽、水等 |
|
" |
20 |
" |
180 |
620 |
570 |
" |
" |
" |
|
" |
25 |
" |
180 |
620 |
570 |
" |
" |
" |
|
" |
32 |
" |
220 |
625 |
570 |
" |
" |
" |
|
" |
50 |
" |
350 |
634 |
580 |
" |
" |
" |
|
" |
65 |
" |
340 |
820 |
|
" |
" |
" |
|
" |
80 |
" |
470 |
1250 |
|
" |
" |
" |
|
J961Y-P54195V |
10 |
P5419.5 |
130 |
600 |
520 |
12Cr1MoV |
≤540 |
蒸汽、水 |
|
" |
20 |
" |
160 |
610 |
520 |
" |
" |
" |
|
" |
25 |
" |
180 |
620 |
570 |
" |
" |
" |
|
" |
32 |
" |
220 |
625 |
570 |
" |
" |
" |
|
" |
50 |
" |
350 |
634 |
570 |
" |
" |
" |
|
" |
65 |
" |
340 |
820 |
360 |
" |
" |
" |
|
J61Y-250 |
10 |
25.0 |
130 |
222 |
150 |
碳钢 |
≤425 |
蒸汽、水等 |
|
" |
20 |
" |
160 |
285 |
180 |
" |
" |
" |
|
" |
25 |
" |
180 |
292 |
180 |
" |
" |
" |
|
" |
32 |
" |
220 |
348 |
220 |
" |
" |
" |
|
" |
50 |
" |
350 |
450 |
350 |
" |
" |
" |
|
" |
65 |
" |
340 |
576 |
|
" |
" |
" |
|
" |
100 |
" |
560 |
805 |
560 |
" |
" |
" |
|
J961Y-250 |
10 |
25.0 |
130 |
600 |
520 |
碳钢 |
≤425 |
蒸汽、水等 |
|
" |
20 |
" |
160 |
610 |
520 |
" |
" |
" |
|
" |
25 |
" |
180 |
620 |
570 |
" |
" |
" |
|
" |
32 |
" |
220 |
625 |
570 |
" |
" |
" |
|
" |
50 |
" |
350 |
634 |
570 |
" |
" |
" |
|
" |
65 |
" |
340 |
820 |
|
" |
" |
" |
|
" |
100 |
" |
560 |
1050 |
|
" |
" |
" |
|
J61Y-P55170V |
10 |
P5517.0 |
130 |
222 |
150 |
Cr1MoV |
≤550 |
高温水、蒸汽 |
|
" |
20 |
" |
160 |
285 |
180 |
" |
" |
" |
|
" |
25 |
" |
180 |
292 |
180 |
" |
" |
" |
|
" |
32 |
" |
220 |
348 |
220 |
" |
" |
" |
|
" |
50 |
" |
350 |
450 |
350 |
" |
" |
" |
|
" |
65 |
" |
340 |
575 |
360 |
" |
" |
" |
|
J961Y-P55170V |
10 |
P5517.0 |
130 |
222 |
520 |
Cr1MoV |
≤550 |
高温水、蒸汽 |
|
" |
20 |
" |
160 |
285 |
520 |
" |
" |
" |
|
" |
25 |
" |
180 |
292 |
570 |
" |
" |
" |
|
" |
32 |
" |
220 |
348 |
570 |
" |
" |
" |
|
" |
50 |
" |
350 |
450 |
580 |
" |
" |
" |
|
" |
65 |
" |
340 |
575 |
|
" |
" |
" |
|
" |
100 |
" |
650 |
970 |
|
" |
" |
" |
|
J61Y-P54195V |
10 |
P5419.5 |
130 |
222 |
150 |
Cr1MoV |
≤550 |
高温水、蒸汽 |
|
" |
20 |
" |
160 |
285 |
180 |
" |
" |
" |
|
" |
25 |
" |
180 |
292 |
180 |
" |
" |
" |
|
" |
32 |
" |
220 |
348 |
220 |
" |
" |
" |
|
" |
50 |
" |
350 |
450 |
350 |
" |
" |
" |
|
" |
65 |
" |
340 |
820 |
|
" |
" |
" |
|
SFJ61Y-320V |
550 |
32 |
|
|
|
耐热合金钢 |
≤550 |
蒸汽 |
|
SFJ61Y-100V |
550 |
10 |
|
|
|
耐热合金钢 |
≤550 |
蒸汽 |
|
SFJ61Y-64 |
550 |
6.4 |
|
|
|
耐热合金钢 |
≤550 |
蒸汽 |
|
SFJ61Y-P5420V |
500 |
20 |
|
|
|
耐热合金钢 |
≤540 |
蒸汽 |
|
" |
400 |
20.0 |
|
|
|
耐热合金钢 |
≤540 |
蒸汽 |
|
SFJ61Y-P5416V |
250 |
16 |
|
|
|
耐热合金钢 |
≤540 |
蒸汽 |
|
SFJ61Y-P5412V |
225 |
12 |
|
|
|
耐热合金钢 |
≤540 |
蒸汽 |
注：焊接坡口尺寸按相关标准或按用户要求执行。 |
