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止回阀设计结构和特征
止回阀的设计与制造符合MSSP-118和ASME B16.34.检验与测试按API 598,标记按MSS-SP-25.
采用以下结构
·全径或缩径 ·升降式止回阀 ·球式止回阀
·旋启式止回阀 ·按需求内置弹簧
·螺栓连接、缠绕垫片密封式阀盖,螺纹连接、全焊密封式阀盖以及螺纹连接内压自紧式阀盖
·整体式上密封座
·承插端符合ASME B16.11 ·螺纹连接端(NPT)符合ANSI/ASME B1.20.1 ·阀瓣可变换为节流型、针型、球型
相关压力
·800LB
·900LB~1500LB
·800LB、900LB~1500LB
·900LB~2500LB
·900LB~2500LB
|
|
序号
|
零件名称
|
CS to ASTM
|
AS to ASTM
|
SS to ASTM
|
|
A105
|
F22
|
F304(L)
|
F316(L)
|
||
1
|
阀体
|
A105
|
A182F22
|
A182F304(L)
|
A182F316(L)
|
2
|
阀瓣
|
A276420
|
A276304
|
A276304(L)
|
A276316(L)
|
3
|
密封螺母
|
316夹柔性石墨
|
316夹PTFE
|
||
4
|
密封圈
|
A105
|
A182F22
|
A182F304(L)
|
A193 B8(M)
|
5
|
固定螺母
|
SS
|
|||
6
|
提升螺栓
|
A193B7
|
A193B16
|
A193B8(M)
|
A193B8(M)
|
适用介质
|
水、蒸汽、油品等
|
水、蒸汽、油品等
|
硝酸、醋酸等
|
||
适用温度
|
-29℃~425℃
|
-29℃~550℃
|
-29℃~200℃
|
NPS
|
缩径
|
3/8”
|
1/2”
|
3/4”
|
1”
|
11/4”
|
11/2”
|
2”
|
|
全径
|
|
3/8”
|
1/2”
|
3/4”
|
1”
|
11/4”
|
11/2”
|
2”
|
|
L
|
79
|
79
|
92
|
111
|
120
|
152
|
172
|
200
|
|
W
|
61
|
61
|
65
|
79
|
95
|
103
|
118
|
132
|
|
重量
|
螺栓式
|
1.4
|
1.2
|
1.5
|
3.1
|
3.9
|
5.6
|
8.9
|
12.5
|
焊接式
|
1.1
|
1.0
|
1.2
|
2.9
|
3.3
|
4.9
|
8.1
|
10.9
|
序号
|
零件名称
|
CS to ASTM
|
AS to ASTM
|
SS to ASTM
|
|
A105
|
F22
|
F304(L)
|
F316(L)
|
||
1
|
阀体
|
A105
|
A182F22
|
A182F304(L)
|
A182F316(L)
|
2
|
阀瓣
|
A276420
|
A276304
|
A276304(L)
|
A276316(L)
|
3
|
垫片
|
316夹柔性石墨
|
316夹PTFE
|
||
4
|
阀盖
|
A105
|
A182F22
|
A182F304(L)
|
A193 B8(M)
|
5
|
铭牌
|
SS
|
|||
6
|
螺栓
|
A193B7
|
A193B16
|
A193B8(M)
|
A193B8(M)
|
7
|
球
|
A182F304
|
A182F304
|
A182F304
|
A182F304
|
适用介质
|
水、蒸汽、油品等
|
水、蒸汽、油品等
|
硝酸、醋酸等
|
||
适用温度
|
-29℃~425℃
|
-29℃~550℃
|
-29℃~200℃
|
NPS
|
缩径
|
3/8”
|
1/2”
|
3/4”
|
1”
|
11/4”
|
11/2”
|
2”
|
|
全径
|
|
3/8”
|
1/2”
|
3/4”
|
1”
|
11/4”
|
11/2”
|
2”
|
|
L
|
92
|
111
|
111
|
120
|
152
|
172
|
200
|
220
|
|
W
|
65
|
79
|
79
|
97
|
104
|
120
|
139
|
215
|
|
重量
|
螺栓式
|
1.6
|
3.4
|
3.3
|
5.5
|
6.0
|
9.2
|
12.9
|
16.2
|
焊接式
|
1.3
|
3.2
|
3.1
|
4.8
|
5.4
|
8.5
|
11.2
|
14.3
|
序号
|
零件名称
|
CS to ASTM
|
AS to ASTM
|
SS to ASTM
|
|
A105
|
F22
|
F304(L)
|
F316(L)
|
||
1
|
阀体
|
A105
|
A182F22
|
A182F304(L)
|
A182F316(L)
|
2
|
阀座
|
A276410
|
A276304
|
A276F304(L)
|
A276F316(L)
|
3
|
阀瓣
|
A276420
|
A276304
|
A276F304(L)
|
A27F316(L)
|
4
|
螺母
|
A1942H
|
A1944
|
A1948
|
A1948M
|
5
|
摇杆
|
A105
|
A182F22
|
A182F304(L)
|
A182F316(L)
|
6
|
垫片
|
316夹柔性石墨
|
316夹PTFE
|
||
7
|
阀盖
|
A105
|
A182F22
|
A182F304(L)
|
A182 F316(L)
|
8
|
螺栓
|
A193B7
|
A193B16
|
A193B8(M)
|
A193B8(M)
|
9
|
销钉
|
a276420
|
A182F304
|
A182F316
|
|
适用介质
|
水、蒸汽、油品等
|
水、蒸汽、油品等
|
硝酸、醋酸等
|
||
适用温度
|
—29℃~425℃
|
—29℃~550℃
|
—29℃~200℃
|
NPS
|
3/8”
|
1/2”
|
3/4”
|
1”
|
11/4"
|
11/2"
|
2"
|
|
L
|
800LB
|
79
|
79
|
92
|
111
|
120
|
120
|
140
|
900LB~1500LB
|
92
|
111
|
111
|
120
|
120
|
140
|
178
|
|
W
|
800LB
|
61
|
61
|
78
|
84
|
101
|
120
|
133
|
900LB~1500LB
|
79
|
79
|
79
|
97
|
105
|
120
|
140
|
|
重量
|
800LB
|
1.1
|
1.0
|
1.9
|
3.9
|
4.5
|
7.3
|
10.0
|
900LB~1500LB
|
3.1
|
3.0
|
3.6
|
4.3
|
6.1
|
8.8
|
12.6
|
序号
|
零件名称
|
CS TO ASTM
|
AS TO ASTM
|
SS TO ASTM
|
|
A105
|
F22
|
F304(L)
|
F316(L)
|
||
1
|
阀座
|
A276410
|
A276304
|
A276304(L)
|
A276316(L)
|
2
|
销钉
|
A276420
|
A182F304
|
A182F316
|
|
3
|
密封圈
|
A276304L
|
A276316L
|
||
4
|
密封螺母
|
A105
|
A182F304
|
A182F304(L)
|
A182F316(L)
|
5
|
阀体
|
A105
|
A182F22
|
A182F304(L)
|
A182F316(L)
|
6
|
阀盖
|
A105
|
A182F22
|
A182F304(L)
|
A182F316(L)
|
7
|
提升螺母
|
A1942H
|
A1944
|
A1948
|
A1948M
|
8
|
四开环
|
A276420
|
A182F304
|
A182F316
|
|
9
|
吊桥
|
A193B7
|
A193B16
|
A193B8
|
A193B8M
|
10
|
摇杆
|
A105
|
A182F22
|
A182F304(L)
|
A182F316(L)
|
11
|
阀瓣
|
A276410
|
F304
|
A182F304(L)
|
F316(L)
|
12
|
螺母
|
A1942H
|
A1944
|
A1948
|
A1948M
|
适用介质
|
水、蒸汽、油品等
|
水、蒸汽、油品等
|
硝酸、醋酸等
|
||
适用温度
|
—29℃~425℃
|
—29℃~550℃
|
—29℃~200℃
|
NPS
|
1/2”
|
3/4”
|
1”
|
11/4"
|
11/2"
|
2"
|
|
L
|
900LB~1500LB
|
140
|
140
|
140
|
178
|
178
|
216
|
2500lb
|
186
|
186
|
186
|
232
|
232
|
279
|
|
H
|
117
|
117
|
117
|
152
|
152
|
195
|
|
重量
|
900LB~1500LB
|
8.2
|
7.8
|
7.7
|
19.8
|
19.2
|
21.3
|
2500lb
|
10.0
|
9.6
|
9.4
|
21.5
|
|
序号
|
零件名称
|
CS to ASTM
|
AS to ASTM
|
SS to ASTM
|
|
A105
|
F22
|
F304(L)
|
F316(L)
|
||
1
|
阀体
|
A105
|
A182F22
|
A182F304(L)
|
A182F316(L)
|
2
|
阀瓣
|
A276 420
|
A276304
|
A276304(L)
|
A276316(L)
|
3
|
密封螺母
|
A105+STL
|
F22+STL
|
A182 F304(L)
|
F316(L)
|
4
|
密封圈
|
A276 304L
|
A276 304L
|
A182F304(L)
|
A276 316L
|
5
|
固定螺母
|
A1942H
|
A1944
|
A1948
|
A194 8M
|
6
|
提升螺栓
|
A1942H
|
A1944
|
A1948
|
A194 8M
|
适用介质
|
水、蒸汽、油品等
|
水、蒸汽、油品等
|
硝酸、醋酸等
|
||
适用温度
|
—29℃~425℃
|
—29℃~550℃
|
—29℃~200℃
|
NPS
|
1/2"
|
3/4"
|
1"
|
1/4"
|
11/2"
|
2"
|
|
L
|
900LB~1500LB
|
140
|
140
|
140
|
178
|
178
|
216
|
2500LB
|
186
|
186
|
186
|
232
|
232
|
279
|
|
H
|
117
|
117
|
117
|
152
|
152
|
195
|
|
重量
|
900LB~1500LB
|
7.5
|
7.0
|
6.8
|
18.5
|
18.1
|
20.3
|
2500LB
|
9.0
|
7.6
|
8.4
|
19.5
|
20.1
|
21.8
|