|
工作溫度
|
適用介質(zhì)
|
|
≤85℃
|
空氣、水
|
三、主要零件的材料：
|
名稱
|
材料
|
|
閥體
|
鑄鐵、不銹鋼、球鐵
|
|
閥蓋
|
不銹鋼
|
|
閥瓣
|
不銹鋼
|
|
手輪
|
鑄鐵
|
|
隔膜
|
天然膠、乙丙膠等
|
|
閥桿
|
不銹鋼
|
四、測試：
|
公稱通徑
|
公稱壓力
|
L
mm |
D
mm/in |
D1
mm/in |
n-Φd
in |
F
mm |
|
|
DN
|
NPS
|
||||||
|
15
|
1/2
|
150
|
108/125
|
89/31/2
|
60.5/23/8
|
4-5/8
|
2
|
|
20
|
3/4
|
117/135
|
98/37/8
|
70/23/4
|
4-5/8
|
2
|
|
|
25
|
1
|
127/145
|
108/41/4
|
79.5/31/8
|
4-5/8
|
2
|
|
|
32
|
11/4
|
146/160
|
117/45/8
|
89/31/2
|
4-5/8
|
2
|
|
|
40
|
11/2
|
159/180
|
127/5
|
98.5/37/8
|
4-5/8
|
2
|
|
|
50
|
2
|
190/210
|
152/6
|
120.5/43/4
|
4-3/4
|
2
|
|
|
65
|
21/2
|
216/250
|
178/7
|
139.5/51/2
|
4-3/4
|
2
|
|
|
80
|
3
|
254/300
|
190/71/2
|
152.5/6
|
4-3/4
|
2
|
|
|
100
|
4
|
305/350
|
229/9
|
1901.5/71/2
|
4-3/4
|
2
|
|
|
125
|
5
|
356/400
|
254/10
|
216/81/2
|
8-7/8
|
2
|
|
|
150
|
6
|
406/460
|
279/11
|
241.5/91/2
|
8-7/8
|
2
|
|
|
200
|
8
|
521/570
|
343/131/2
|
298.5/113/4
|
8-7/8
|
2
|
|
|
250
|
10
|
635/680
|
406/16
|
362/141/4
|
12-1
|
2
|
|
|
300
|
12
|
749/790
|
483/19
|
432/17
|
12-1
|
2
|
|
|
350
|
14
|
787/900
|
533/21
|
476/183/4
|
12-11/8
|
2
|
|
|
400
|
16
|
914/1000
|
597/231/2
|
540/211/4
|
16-11/8
|
2
|
|
