H41H鍛鋼法蘭止回閥
一、H41H鍛鋼法蘭止回閥產(chǎn)品概述
H41H鍛鋼法蘭止回閥是指依靠介質(zhì)本身流動而自動開、閉閥瓣，用來防止介質(zhì)倒流的閥門
二、H41H鍛鋼法蘭止回閥結(jié)構(gòu)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(fù)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(biāo)碳鋼CS to ASTM | 美標(biāo)合金鋼AS to ASTM | 美標(biāo)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(zhì) 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 | ||
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