耐熱鋼楔式閘閥
閘閥是最常用的截?cái)嚅y之一，主要用來接通或截?cái)喙苈分械慕橘|(zhì)，不適用于調(diào)節(jié)介質(zhì)流量。閘閥適用的壓力、溫度及口徑范圍很大，尤其適用于中、大口徑的管道。
閘閥的主要優(yōu)點(diǎn)：
（1）流體阻力小。閘閥閘體內(nèi)部介質(zhì)通道是直通的，介質(zhì)流經(jīng)閘閥時(shí)不改變其流動(dòng)方向，因而流動(dòng)阻力較小。
（2）啟閉較省力。啟閉時(shí)閘板運(yùn)動(dòng)方向與介質(zhì)流動(dòng)方向相垂直。與截止閥相比，閘閥的啟閉較為省力。
（3）介質(zhì)流動(dòng)方向一般不受限制。介質(zhì)可從閘閥兩側(cè)任意方向流過，均能達(dá)到接通或截?cái)嗟哪康摹１阌诎惭b，適用于介質(zhì)的流動(dòng)方向可能改變的管路中。
主要零件材料及性能規(guī)范
|
主要零部件
|
閥體、閥蓋、閘板
|
WCB
|
ZG1Cr18Ni9Ti
|
ZG1Cr18Ni12Mo2Ti
0Cr18Ni12Mo2Ti
|
ZG2Cr5Mo
|
|
閥桿
|
1Cr13
|
1Cr18Ni9Ti
|
20Cr1Mo1V1
|
|
閥桿螺母
|
ZguAL10Fe3/球墨鑄鐵
|
|
填料
|
柔性石墨、石墨石棉盤根
|
|
主要
參數(shù)
|
適用介質(zhì)
|
蒸汽、油品、水等
|
硝酸類
|
醋酸類
|
蒸汽、油品、水等
|
|
適用適用溫度℃
|
≤425
|
≤200
|
≤200
|
≤425
|
|
型號(hào)
|
公稱
|
|
主要結(jié)構(gòu)尺寸(mm)
|
閥體
材料
|
性能規(guī)范
|
|
通徑 DN(mm)
|
壓力 PN(MPa)
|
D
|
D0
|
L
|
H1
|
H2
|
適用溫度℃
|
適用
介質(zhì)
|
|
Z410Y-16I
|
50
|
1.6
|
160
|
200
|
250
|
185
|
240
|
ZGCr5Mo
|
≤550
|
蒸汽、油品、水
|
|
"
|
65
|
"
|
180
|
200
|
270
|
240
|
20
|
"
|
"
|
"
|
|
"
|
80
|
"
|
195
|
250
|
280
|
350
|
395
|
"
|
"
|
"
|
|
"
|
100
|
"
|
215
|
250
|
300
|
370
|
480
|
"
|
"
|
"
|
|
"
|
150
|
"
|
280
|
300
|
350
|
560
|
720
|
"
|
"
|
"
|
|
"
|
200
|
"
|
335
|
350
|
400
|
735
|
955
|
"
|
"
|
"
|
|
"
|
250
|
"
|
405
|
400
|
450
|
880
|
1150
|
"
|
"
|
"
|
|
"
|
300
|
"
|
460
|
450
|
500
|
1050
|
1375
|
"
|
"
|
"
|
|
"
|
350
|
"
|
520
|
500
|
550
|
1195
|
1565
|
"
|
"
|
"
|
|
"
|
400
|
"
|
580
|
550
|
600
|
1335
|
1760
|
"
|
"
|
"
|
|
"
|
500
|
"
|
705
|
600
|
700
|
1720
|
2270
|
"
|
"
|
"
|
|
"
|
600
|
"
|
840
|
650
|
800
|
1830
|
2480
|
"
|
"
|
"
|
|
"
|
700
|
"
|
910
|
|
900
|
|
|
"
|
"
|
"
|
|
Z410Y-25I
|
50
|
2.5
|
160
|
200
|
250
|
185
|
240
|
ZGCr5Mo
|
≤550
|
蒸汽、油品、水
|
|
"
|
65
|
"
|
180
|
200
|
270
|
240
|
320
|
"
|
"
|
"
|
|
"
|
80
|
"
|
195
|
250
|
280
|
305
|
395
|
"
|
"
|
"
|
|
"
|
100
|
"
|
230
|
250
|
300
|
370
|
480
|
"
|
"
|
"
|
|
"
|
150
|
"
|
300
|
300
|
350
|
560
|
720
|
"
|
"
|
"
|
|
"
|
200
|
"
|
360
|
360
|
400
|
735
|
955
|
"
|
"
|
"
|
|
"
|
250
|
"
|
425
|
425
|
450
|
880
|
1160
|
"
|
"
|
"
|
|
"
|
300
|
"
|
485
|
485
|
500
|
1080
|
1405
|
"
|
"
|
"
|
|
"
|
350
|
"
|
550
|
550
|
550
|
1210
|
1580
|
"
|
"
|
"
|
|
"
|
400
|
"
|
610
|
610
|
600
|
1345
|
1780
|
"
|
"
|
"
|
|
"
|
500
|
"
|
730
|
730
|
700
|
1740
|
2290
|
"
|
"
|
"
|
|
"
|
600
|
"
|
840
|
650
|
800
|
1850
|
2500
|
"
|
"
|
"
|
|
"
|
700
|
"
|
955
|
|
900
|
|
|
"
|
"
|
"
|
|
Z410Y-40I
|
50
|
4.0
|
160
|
250
|
250
|
220
|
295
|
ZGCr5Mo
|
≤550
|
蒸汽、油品、水
|
|
"
|
65
|
"
|
180
|
250
|
280
|
290
|
365
|
"
|
"
|
"
|
|
"
|
80
|
"
|
195
|
300
|
310
|
360
|
450
|
"
|
"
|
"
|
|
"
|
100
|
"
|
230
|
300
|
350
|
450
|
570
|
"
|
"
|
"
|
|
"
|
150
|
"
|
300
|
350
|
450
|
620
|
790
|
"
|
"
|
"
|
|
"
|
200
|
"
|
375
|
400
|
550
|
830
|
1050
|
"
|
"
|
"
|
|
"
|
250
|
"
|
445
|
450
|
650
|
950
|
1235
|
"
|
"
|
"
|
|
"
|
300
|
"
|
510
|
500
|
750
|
1120
|
1450
|
"
|
"
|
"
|
|
"
|
350
|
"
|
570
|
550
|
850
|
1560
|
1940
|
"
|
"
|
"
|
|
"
|
400
|
"
|
655
|
600
|
950
|
1770
|
2200
|
"
|
"
|
"
|
|
"
|
500
|
"
|
755
|
680
|
1050
|
1880
|
|
"
|
"
|
"
|
|
Z410Y-64I
|
50
|
6.4
|
175
|
300
|
250
|
240
|
320
|
ZGCr5Mo
|
≤550
|
蒸汽、油品、水
|
|
"
|
65
|
"
|
200
|
300
|
280
|
310
|
390
|
"
|
"
|
"
|
|
"
|
80
|
"
|
210
|
350
|
310
|
380
|
470
|
"
|
"
|
"
|
|
"
|
100
|
"
|
250
|
350
|
350
|
470
|
590
|
"
|
"
|
"
|
|
"
|
150
|
"
|
340
|
400
|
450
|
640
|
810
|
"
|
"
|
"
|
|
"
|
200
|
"
|
405
|
450
|
550
|
850
|
1070
|
"
|
"
|
"
|
|
"
|
250
|
"
|
470
|
500
|
650
|
1000
|
1270
|
"
|
"
|
"
|
|
Z410Y-64I
|
300
|
6.4
|
530
|
550
|
750
|
1210
|
1550
|
ZGCr5Mo
|
≤550
|
蒸汽、油品、水
|
|
Z410Y-100I
|
50
|
10.0
|
195
|
300
|
250
|
260
|
340
|
ZGCr5Mo
|
≤550
|
蒸汽、油品、水
|
|
"
|
65
|
"
|
220
|
300
|
280
|
330
|
410
|
"
|
"
|
"
|
|
"
|
80
|
"
|
230
|
350
|
310
|
400
|
490
|
"
|
"
|
"
|
|
"
|
100
|
"
|
265
|
350
|
350
|
490
|
610
|
"
|
"
|
"
|
|
"
|
150
|
"
|
350
|
400
|
450
|
660
|
830
|
"
|
"
|
"
|
|
"
|
200
|
"
|
430
|
450
|
550
|
1100
|
1320
|
"
|
"
|
"
|
|
"
|
250
|
"
|
500
|
500
|
650
|
1300
|
1580
|
"
|
"
|
"
|
|
"
|
300
|
"
|
585
|
550
|
750
|
1480
|
1810
|
"
|
"
|
"
|
注：法蘭尺寸標(biāo)準(zhǔn)按JB/T79-1994。