H41H锻钢法兰止回阀
一、H41H锻钢法兰止回阀产品概述
H41H锻钢法兰止回阀是指依靠介质本身流动而自动开、闭阀瓣，用来防止介质倒流的阀门
二、H41H锻钢法兰止回阀结构形式如下
1.全通径或缩径；
2.立式止回阀
3.球形止回阀
4.旋启式止回阀
5.可按要求采用弹簧辅助复位
6.采用缠绕式垫片的螺栓型阀盖、螺纹密封焊接型阀盖，或自密封阀盖
7.承插焊接ANSI/ASME B16.11
8.螺纹端(NPT端)按ANSI/ASME B1.20.1
三、H41H锻钢法兰止回阀 主要零部件材料
|
序号NO.
|
名 称
|
美标碳钢CS to ASTM
|
美标合金钢AS to ASTM
|
美标不锈钢钢SS to ASTM
|
|
Part Name
|
Type A 105
|
Type F22
|
Type F304(L)
|
Type F316(L)
|
|
1
|
阀体
|
Body
|
A105
|
A182 F22
|
A182 F304(L)
|
A182 F316(L)
|
|
2
|
立升式阀瓣
|
Piston Disc
|
A276 410
|
A276 304
|
A276 F304(L)
|
A276 F316(L)
|
|
3
|
垫片
|
Gasket
|
Corrugated SS+graphite
|
SS+PTFE
|
|
4
|
阀盖
|
Bonnet
|
A105
|
A182 F22
|
A182 F304(L)
|
A182 F316(L)
|
|
5
|
铭牌
|
Nameplate
|
|
|
6
|
螺栓
|
Bolt
|
A193 B7
|
A193 B16
|
A193 B8M
|
A193 B8M
|
|
7
|
球
|
Ball
|
A182 F304
|
A182 F304
|
A182 F304
|
A182 F304
|
|
适用介质 Suitable Medium
|
(水、油、气等)W.O.G.etc
|
(酸类)HNO3,CH3OOH etc
|
|
适用温度Suitable Temperature
|
-29℃～425℃
|
-29℃～550℃
|
-29℃～180℃
|
四、H41H锻钢法兰止回阀尺寸表
|
通径
|
缩径RB
|
3/8
|
1/2
|
3/4
|
1
|
1 1/4
|
1 1/2
|
2
|
|
|
NPS
|
全径FB
|
|
3/8
|
1/2
|
3/4
|
1
|
1 1/4
|
1 1/2
|
2
|
|
L
|
150～800Lb
|
79
|
79
|
92
|
111
|
120
|
152
|
172
|
200
|
|
900～1500Lb
|
111
|
111
|
111
|
130
|
152
|
172
|
220
|
220
|
|
H(OPEN)
|
150～800Lb
|
61
|
61
|
65
|
79
|
95
|
103
|
118
|
132
|
|
900～1500Lb
|
65
|
79
|
79
|
97
|
104
|
120
|
139
|
215
|
|
Weights
|
Bolted
|
150～800Lb
|
1.4
|
1.2
|
1.5
|
3.1
|
3.9
|
5.6
|
8.9
|
12.5
|
|
900～1500Lb
|
1.6
|
3.4
|
3.3
|
5.5
|
6.0
|
9.2
|
12.9
|
16.2
|
|
Welded
|
150～800Lb
|
1.1
|
1.0
|
1.2
|
2.9
|
3.3
|
4.9
|
8.1
|
10.9
|
|
900～1500Lb
|
1.3
|
3.2
|
3.1
|
4.8
|
5.4
|
8.5
|
11.2
|
14.3
|