H41H鍛鋼法蘭止回閥
一、H41H鍛鋼法蘭止回閥產品概述
H41H鍛鋼法蘭止回閥是指依靠介質本身流動而自動開、閉閥瓣，用來防止介質倒流的閥門
二、H41H鍛鋼法蘭止回閥結構形式如下
1.全通徑或縮徑；
2.立式止回閥
3.球形止回閥
4.旋啟式止回閥
5.可按要求采用彈簧輔助復位
6.采用纏繞式墊片的螺栓型閥蓋、螺紋密封焊接型閥蓋，或自密封閥蓋
7.承插焊接ANSI/ASME B16.11
8.螺紋端(NPT端)按ANSI/ASME B1.20.1
三、H41H鍛鋼法蘭止回閥 主要零部件材料
|
序號NO.
|
名 稱
|
美標碳鋼CS to ASTM
|
美標合金鋼AS to ASTM
|
美標不銹鋼鋼SS to ASTM
|
|
Part Name
|
Type A 105
|
Type F22
|
Type F304(L)
|
Type F316(L)
|
|
1
|
閥體
|
Body
|
A105
|
A182 F22
|
A182 F304(L)
|
A182 F316(L)
|
|
2
|
立升式閥瓣
|
Piston Disc
|
A276 410
|
A276 304
|
A276 F304(L)
|
A276 F316(L)
|
|
3
|
墊片
|
Gasket
|
Corrugated SS+graphite
|
SS+PTFE
|
|
4
|
閥蓋
|
Bonnet
|
A105
|
A182 F22
|
A182 F304(L)
|
A182 F316(L)
|
|
5
|
銘牌
|
Nameplate
|
|
|
6
|
螺栓
|
Bolt
|
A193 B7
|
A193 B16
|
A193 B8M
|
A193 B8M
|
|
7
|
球
|
Ball
|
A182 F304
|
A182 F304
|
A182 F304
|
A182 F304
|
|
適用介質 Suitable Medium
|
(水、油、氣等)W.O.G.etc
|
(酸類)HNO3,CH3OOH etc
|
|
適用溫度Suitable Temperature
|
-29℃～425℃
|
-29℃～550℃
|
-29℃～180℃
|
四、H41H鍛鋼法蘭止回閥尺寸表
|
通徑
|
縮徑RB
|
3/8
|
1/2
|
3/4
|
1
|
1 1/4
|
1 1/2
|
2
|
|
|
NPS
|
全徑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
|