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真空闸阀连接形式分法兰、焊接两种,驱动方式有手动、电动两种。真空闸阀适用于工作温度≤425℃和≤550℃,工作介质为水、蒸汽或空气的管路上,作为启闭装置;真空闸阀尤其适用于火电厂汽机冷凝和真空负压系统,起真空隔离密封作用。
■主要性能规范 Chief property and specification ■试验压力 Test pressure
公称通径 DN/mm Nominal diameter |
试验压力/MPa Seal test |
壳体强度试验 Sheli strength |
上密封试验 Back seal |
密封试验 Seal test |
2.5 |
3 8 |
2 8 |
2 8 |
4 O |
6 0 |
4 4 |
4 4 |
6 4 |
9.6 |
7.0 |
7.0 |
10.0 |
15.0 |
11.0 |
110 | ■试验压力 Test pressure
产品类型 Product type |
适用介质 Applicable medium |
适用温度/℃ Applicable temperature |
NKZ61H NKZ64H NKZ964H NKZ961H |
H-C型 | |
水、蒸汽、空气 Water,Stram.Air |
≤425 |
NKZ61H NKZ64H NKZ964H NKZ961H |
Y-I型 | |
水、蒸汽、空气 Water,Stram.Air |
≤550 | ■主要零件材料 Materials main parts
零件名称 Part name |
阀体、阀盖 Body Bonnet |
阀杆 Valve stem |
阀板 Wedge gate |
密封面 Sealing face |
阀杆螺母 Yoke nut |
填料 Packing |
紧固件 Fastener |
NKZ61H NKZ64H NKZ964H NKZ961H |
H-C型 | |
WCB |
2Gr13 |
25 |
H:合金钢 H:alloy steel |
铝青铜 Al bronze |
膨胀复合石墨 Expanding compound graphite |
优质碳钢 High-grade carbon steel |
NKZ61H NKZ64H NKZ964H NKZ961H |
Y-I型 | |
铬钼钢 Cr.Mo steel |
20Cr1Mo1VA |
铬钼钢 Cr.Mo steel |
Y:硬质合金 Y:carbide alloy |
铬钼钢 Cr.Mo steel | ■主要尺寸及重量 Main dimensions and weight
公称通径 DN/mm Nominal diameter |
公称压力 DN/mm Nominal pressure |
主要外形尺寸和连接尺寸/mm Main external and connecting dimensions |
电动装置 Electric dowice |
L |
H |
D |
Do |
∝ |
W |
50 |
2.5 |
250 |
618 |
64 |
49 |
37°30’ |
562 |
DZW10 |
65 |
270 |
670 |
82 |
66 |
37°30’ |
562 |
DZW10 |
80 |
280 |
700 |
95 |
78 |
37°30’ |
562 |
DZW10 |
100 |
300 |
785 |
117 |
100 |
37°30’ |
607 |
DZW15 |
125 |
325 |
845 |
144 |
125 |
37°30’ |
607 |
DZW20I |
150 |
350 |
990 |
172 |
151 |
37°30’ |
607 |
DZW20I |
200 |
400 |
1080 |
223 |
201 |
37°30’ |
607 |
DZW30 |
250 |
450 |
1150 |
278 |
253 |
37°30’ |
607 |
DZW30 |
300 |
500 |
1415 |
330 |
303 |
37°30’ |
755 |
DZW45 |
350 |
550 |
1665 |
380 |
351 |
37°30’ |
755 |
DZW60 |
400 |
600 |
1815 |
432 |
398 |
37°30’ |
825 |
DZW90 |
450 |
650 |
1920 |
484 |
450 |
37°30’ |
825 |
DZW120 |
500 |
700 |
2080 |
535 |
498 |
37°30’ |
825 |
DZW120 |
600 |
800 |
2380 |
638 |
600 |
37°30’ |
925 |
DZW180 |
50 |
4 O |
250 |
618 |
64 |
49 |
37°30’ |
562 |
DZW15 |
65 |
270 |
670 |
82 |
66 |
37°30’ |
562 |
DZW15 |
80 |
280 |
700 |
95 |
78 |
37°30’ |
607 |
DZW15 |
100 |
300 |
785 |
117 |
100 |
37°30’ |
607 |
DZW20I |
125 |
325 |
845 |
144 |
125 |
37°30’ |
607 |
DZW20I |
150 |
350 |
990 |
172 |
151 |
37°30’ |
607 |
DZW30 |
200 |
400 |
1080 |
223 |
199 |
37°30’ |
607 |
DZW30 |
250 |
450 |
1150 |
278 |
251 |
37°30’ |
755 |
DZW45 |
300 |
500 |
1415 |
330 |
301 |
37°30’ |
755 |
DZW60 |
350 |
550 |
1685 |
382 |
349 |
37°30’ |
825 |
DZW90I |
400 |
600 |
1815 |
432 |
396 |
37°30’ |
825 |
DZWl20 |
50 |
6.4 |
250 |
625 |
64 |
49 |
37°30’ |
562 |
DZWlO |
65 |
280 |
693 |
82 |
66 |
37°30’ |
562 |
DZWl5 |
80 |
310 |
712 |
95 |
76 |
37°30’ |
607 |
DZW20I |
100 |
350 |
790 |
117 |
98 |
37°30’ |
607 |
DZW20I |
125 |
400 |
855 |
150 |
128 |
37°30’ |
607 |
DZW30 |
150 |
450 |
1000 |
172 |
149 |
37°30’ |
607 |
DZW30 |
200 |
550 |
1185 |
223 |
197 |
37°30’ |
755 |
DZW45 |
250 |
650 |
1255 |
278 |
245 |
37°30’ |
755 |
DZW60 |
300 |
750 |
1445 |
330 |
293 |
37°30’ |
825 |
DZW90I |
350 |
850 |
1715 |
382 |
341 |
37°30’ |
825 |
DZW120I |
400 |
950 |
1985 |
432 |
386 |
37°30’ |
925 |
DZW180 |
50 |
10.O |
250 |
625 |
64 |
49 |
37°30’ |
562 |
DZW1O |
65 |
280 |
693 |
82 |
66 |
37°30’ |
562 |
DZW15 |
80 |
310 |
712 |
95 |
74 |
37°30’ |
607 |
DZW20I |
100 |
350 |
790 |
117 |
97 |
37°30’ |
607 |
DZW30I |
125 |
400 |
855 |
150 |
124 |
37°30’ |
607 |
DZW30 |
150 |
450 |
1000 |
172 |
144 |
37°30’ |
755 |
DZW45 |
200 |
550 |
1185 |
223 |
189 |
37°30’ |
755 |
DZW60 |
250 |
650 |
1255 |
278 |
235 |
37°30’ |
825 |
DZW90I |
300 |
750 |
1445 |
330 |
281 |
37°30’ |
825 |
DZW120I |
350 |
850 |
1715 |
382 |
333 |
37°30’ |
925 |
DZW180 |
400 |
950 |
1985 |
432 |
376 |
37°30’ |
925 |
DZW250 | |
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