產品概述：
襯氟立式止回閥能自動阻止流體倒流的閥門，止回閥的閥瓣在流體壓力作用下開啟，流體從進口側流向出口側。當進口側壓力低于出口側時，閥瓣在流體壓差、本身重力等因素作用下自動關閉以防止流體倒流。
主要型號有H42S型、H72S型、H40S型，其中H40S型是一種新型結構，閥瓣為球型，共同特點是閥瓣沿閥體通路軸線做升降運動，一般應安裝在垂直管路。
零部件材料：
|
序號
|
零件名稱
|
灰鑄鐵
|
鑄鋼
|
不銹耐酸鑄鋼
|
超低碳不銹耐酸鑄鋼
|
|
Z
|
C
|
P
|
R
|
PL
|
RL
|
|
1
|
閥體/閥蓋
|
HT250
|
WCB
|
CF8
|
CF8M
|
CF3
|
CF3M
|
|
2
|
閥瓣/閥桿
|
35
|
1Cr13
|
1Cr18Ni9
|
1Cr18Ni12Mo2Ti
|
00Cr18Ni10
|
00Cr17Ni14Mo2
|
|
3
|
襯里/閥座
|
PCTEF(F3),FEP(F46),PFA(可溶F4),PP,PO
|
|
4
|
緊固螺栓
|
WCB
|
1Cr17Ni2
|
1Cr18Ni9Ti
|
|
5
|
螺母
|
PTFE(F4)
|
CF8
|
CF8
|
連接尺寸：
|
公稱通經
|
L
|
D
|
D1
|
D2
|
f
|
b
|
Z-φd
|
|
DN(mm)
|
NPS(inch)
|
PN1.0MPa
|
|
15
|
1/2
|
108
|
95
|
65
|
45
|
2
|
14
|
4-φ14
|
|
20
|
3/4
|
117
|
105
|
75
|
55
|
2
|
16
|
4-φ14
|
|
25
|
1
|
127
|
115
|
85
|
65
|
2
|
16
|
4-φ14
|
|
32
|
5/4
|
140
|
135
|
100
|
78
|
2
|
18
|
4-φ18
|
|
40
|
3/2
|
165
|
145
|
110
|
85
|
3
|
18
|
4-φ18
|
|
50
|
2
|
203
|
160
|
125
|
100
|
3
|
20
|
4-φ18
|
|
65
|
5/2
|
216
|
180
|
145
|
120
|
3
|
20
|
4-φ18
|
|
80
|
3
|
241
|
195
|
160
|
135
|
3
|
22
|
4-φ18
|
|
100
|
4
|
292
|
215
|
180
|
155
|
3
|
22
|
8-φ18
|
|
150
|
6
|
356
|
280
|
240
|
210
|
3
|
24
|
8-φ23
|
|
200
|
8
|
495
|
335
|
295
|
265
|
3
|
26
|
8-φ23
|
|
250
|
10
|
622
|
390
|
350
|
320
|
3
|
28
|
12-φ23
|
|
300
|
12
|
698
|
440
|
400
|
368
|
4
|
28
|
12-φ23
|
|
350
|
14
|
787
|
500
|
460
|
428
|
4
|
30
|
16-φ23
|
|
400
|
16
|
914
|
565
|
515
|
482
|
4
|
32
|
16-φ25
|
|
450
|
18
|
978
|
615
|
565
|
532
|
4
|
32
|
20-φ25
|
|
500
|
20
|
978
|
670
|
620
|
585
|
4
|
34
|
20-φ25
|
|
PN1.6MPa
|
|
15
|
1/2
|
108
|
95
|
65
|
45
|
2
|
14
|
4-φ14
|
|
20
|
3/4
|
117
|
105
|
75
|
55
|
2
|
16
|
4-φ14
|
|
25
|
1
|
127
|
115
|
85
|
65
|
2
|
16
|
4-φ14
|
|
32
|
5/4
|
140
|
135
|
100
|
78
|
2
|
18
|
4-φ18
|
|
40
|
3/2
|
165
|
145
|
110
|
85
|
3
|
18
|
4-φ18
|
|
50
|
2
|
203
|
160
|
125
|
100
|
3
|
20
|
4-φ18
|
|
65
|
5/2
|
216
|
180
|
145
|
120
|
3
|
20
|
4-φ18
|
|
80
|
3
|
241
|
195
|
160
|
135
|
3
|
22
|
8-φ18
|
|
100
|
4
|
292
|
215
|
180
|
155
|
3
|
24
|
8-φ18
|
|
150
|
6
|
356
|
280
|
240
|
210
|
3
|
28
|
8-φ23
|
|
200
|
8
|
495
|
335
|
295
|
265
|
3
|
30
|
12-φ23
|
|
250
|
10
|
622
|
405
|
355
|
320
|
4
|
32
|
12-φ25
|
|
300
|
12
|
698
|
460
|
410
|
375
|
4
|
34
|
12-φ25
|
|
350
|
14
|
787
|
520
|
470
|
435
|
4
|
38
|
16-φ25
|
|
400
|
16
|
914
|
580
|
525
|
485
|
4
|
40
|
16-φ30
|
|
PN2.5MPa
|
|
15
|
1/2
|
108
|
95
|
65
|
45
|
2
|
16
|
4-φ14
|
|
20
|
3/4
|
117
|
105
|
75
|
55
|
2
|
16
|
4-φ14
|
|
25
|
1
|
127
|
115
|
85
|
65
|
2
|
16
|
4-φ14
|
|
32
|
5/4
|
140
|
135
|
100
|
78
|
2
|
18
|
4-φ18
|
|
40
|
3/2
|
165
|
145
|
110
|
85
|
3
|
18
|
4-φ18
|
|
50
|
2
|
203
|
160
|
125
|
100
|
3
|
20
|
4-φ18
|
