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H41H碳钢升降式止回阀产品概述
止回阀又称为逆流阀、逆止阀、背压阀、单向阀。这类阀门是靠管路中介质本身的流动产生的力而自动开启和关闭的，属于一种自动阀门。止回阀用于管路系统，其主要作用是防止介质倒流、防止泵及其驱动电机反转，以及容器内介质的泄放。止回阀还可用于给其中的压力可能升至**过主系统压力的辅助系统提供补给的管路上。
H41H碳钢升降式止回阀执行标准
|
类 型
|
设计与制造
|
结构长度
|
法兰尺寸
|
压力温度
|
试验-检验
|
|
旋启式止回阀
|
GB12236
|
GB12221
|
GB9113
JB79
|
GB9131
|
GB/T13927
JB/9092
|
|
升降式止回阀
|
GB12235
|
H41H碳钢升降式止回阀压力试验
|
公称压力
|
1.6
|
2.5
|
4.0
|
6.4
|
10.0
|
16.0
|
|
强度试验
|
2.4
|
3.8
|
6.0
|
9.6
|
15.0
|
24.0
|
|
水密封试验
|
1.8
|
2.8
|
4.4
|
7.0
|
11.0
|
18.0
|
|
气密封试验
|
0.5-0.7
|
H41H碳钢升降式止回阀主要零件材料及性能
|
体、盖、板
|
阀 杆
|
密封面
|
垫 片
|
密封面
|
工作温度℃
|
适用介质
|
|
WCB
|
WCB
|
1Cr13
|
增强柔性石墨
1Cr13/
柔性石墨
PTFE
齿轮垫片
|
13Cr
STL
本体材料
尼龙
|
≤425
|
水蒸汽油品
|
|
WC6
|
WC6
|
≤540
|
|
WC9
|
WC9
|
≤570
|
|
ZGCr5Mo
|
ZGCr5Mo
|
≤550
|
|
ZG1Cr18Ni9Ti
|
ZG1Cr18Ni9Ti
|
ZG1Cr18Ni9Ti
|
≤200
|
硝酸类
|
|
ZG1Cr18Ni12Mo9Ti
|
ZG1Cr18Ni12Mo9Ti
|
ZG1Cr18Ni12Mo9Ti
|
≤200
|
醋酸类
|
H41H碳钢升降式止回阀PN l.6MPa ～l0.0MPa主要尺寸
|
1.6MPa
|
DN
|
L
|
D
|
D1
|
D2
|
b
|
n-Φd
|
H
|
|
凸面法兰
RF
H41H
H41Y
H41W
H41N
16C
16P
16R
|
15
|
130
|
95
|
65
|
45
|
14
|
4-14
|
58
|
|
20
|
150
|
105
|
75
|
55
|
14
|
4-14
|
63
|
|
25
|
160
|
115
|
85
|
65
|
14
|
4-14
|
71
|
|
32
|
180
|
135
|
100
|
78
|
16
|
4-18
|
84
|
|
40
|
200
|
145
|
110
|
85
|
16
|
4-18
|
96
|
|
50
|
230
|
160
|
125
|
100
|
16
|
4-18
|
115
|
|
65
|
290
|
180
|
145
|
120
|
18
|
4-18
|
145
|
|
80
|
310
|
195
|
160
|
135
|
20
|
8-18
|
156
|
|
100
|
350
|
215
|
180
|
155
|
20
|
8-18
|
170
|
|
125
|
400
|
245
|
210
|
185
|
22
|
8-18
|
201
|
|
150
|
480
|
280
|
240
|
210
|
24
|
8-23
|
238
|
|
2.5MPa
|
15
|
130
|
95
|
65
|
45
|
16
|
4-14
|
60
|
|
凸面法兰
RF
H41H
H41Y
H41W
H41N
25
25P
25R
|
20
|
150
|
105
|
75
|
55
|
16
|
4-14
|
64
|
|
25
|
160
|
115
|
85
|
65
|
16
|
4-14
|
68
|
|
32
|
180
|
135
|
100
|
78
|
18
|
4-18
|
79
|
|
40
|
200
|
145
|
110
|
85
|
18
|
4-18
|
98
|
|
50
|
230
|
160
|
125
|
100
|
20
|
4-18
|
110
|
|
65
|
290
|
180
|
145
|
120
|
22
|
8-18
|
160
|
|
80
|
310
|
195
|
160
|
135
|
22
|
8-18
|
170
|
|
100
|
350
|
230
|
190
|
160
|
24
|
8-23
|
195
|
|
125
|
400
|
270
|
220
|
188
|
28
|
8-25
|
225
|
|
150
|
480
|
300
|
250
|
210
|
30
|
8-25
|
255
|
H41H碳钢升降式止回阀 PN 4.0MPa～10.0MPa主要尺寸
|
4.0MPa
|
DN
|
L
|
D
|
D1
|
D2
|
b
|
n-d
|
H
|
|
凹凸法兰
MFM
H41H
H41Y
H41W
H41N
40
40P
40R
40I
|
15
|
130
|
95
|
65
|
40
|
16
|
4-14
|
100
|
|
20
|
150
|
105
|
75
|
51
|
16
|
4-14
|
105
|
|
25
|
160
|
115
|
85
|
58
|
16
|
4-14
|
120
|
|
32
|
180
|
135
|
100
|
66
|
18
|
4-18
|
130
|
|
40
|
200
|
145
|
110
|
76
|
18
|
4-18
|
135
|
|
50
|
230
|
160
|
125
|
88
|
20
|
4-18
|
149
|
|
65
|
290
|
180
|
145
|
110
|
22
|
8-18
|
164
|
|
80
|
310
|
195
|
160
|
121
|
22
|
8-18
|
169
|
|
100
|
350
|
230
|
190
|
150
|
24
|
8-23
|
194
|
|
125
|
400
|
270
|
220
|
176
|
28
|
8-25
|
225
|
|
150
|
480
|
300
|
250
|
204
|
30
|
8-25
|
255
|
|
6.4MPa
|
15
|
210
|
105
|
75
|
40
|
18
|
4-14
|
100
|
|
凹凸法兰
MFM
H41H
H41Y
H41W
H41N
64
64P
64R
64I
|
20
|
230
|
125
|
90
|
51
|
20
|
4-18
|
110
|
|
25
|
230
|
135
|
100
|
58
|
22
|
4-18
|
125
|
|
32
|
260
|
150
|
110
|
66
|
24
|
4-23
|
152
|
|
40
|
260
|
165
|
125
|
76
|
24
|
4-23
|
168
|
|
50
|
300
|
175
|
135
|
88
|
26
|
4-23
|
170
|
|
65
|
340
|
200
|
160
|
110
|
28
|
8-23
|
188
|
|
80
|
380
|
210
|
170
|
121
|
30
|
8-23
|
205
|
|
100
|
430
|
250
|
200
|
150
|
32
|
8-25
|
230
|
|
125
|
500
|
295
|
240
|
176
|
36
|
8-30
|
245
|
|
150
|
550
|
340
|
280
|
204
|
38
|
8-34
|
265
|
|
10.0MPa
|
15
|
210
|
105
|
75
|
40
|
20
|
4-14
|
100
|
|
凹凸法兰
MFM
H41H
H41Y
H41W
H41N
100
100P
100R
100I
|
20
|
230
|
125
|
90
|
51
|
22
|
4-18
|
110
|
|
25
|
230
|
135
|
100
|
58
|
24
|
4-18
|
125
|
|
32
|
260
|
150
|
110
|
66
|
24
|
4-23
|
140
|
|
40
|
260
|
165
|
125
|
76
|
26
|
4-23
|
168
|
|
50
|
300
|
195
|
145
|
88
|
28
|
4-25
|
170
|
|
65
|
340
|
200
|
170
|
110
|
32
|
8-25
|
188
|
|
80
|
380
|
230
|
180
|
121
|
34
|
8-25
|
205
|
|
100
|
430
|
265
|
210
|
150
|
38
|
8-30
|
230
|
|
125
|
500
|
310
|
250
|
176
|
42
|
8-34
|
245
|
|
150
|
550
|
350
|
290
|
204
|
46
|
12-34
|
265
|
|
160
160P
160R
160I
|
32
|
260
|
165
|
115
|
85
|
30
|
4-25
|
170
|
|
40
|
260
|
175
|
125
|
92
|
32
|
4-27
|
190
|
|
50
|
300
|
215
|
165
|
132
|
36
|
8-25
|
300
|
|
65
|
340
|
245
|
190
|
152
|
44
|
8-30
|
300
|
|
80
|
380
|
260
|
205
|
168
|
46
|
8-30
|
370
|
|
100
|
430
|
300
|
240
|
200
|
48
|
8-34
|
410
|
|
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