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(dòng)而自動(dòng)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
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序號(hào)NO.
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名 稱
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美標(biāo)碳鋼CS to ASTM
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美標(biāo)合金鋼AS to ASTM
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美標(biāo)不銹鋼鋼SS to ASTM
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Part Name
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Type A 105
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Type F22
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Type F304(L)
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Type F316(L)
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1
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閥體
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Body
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A105
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A182 F22
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A182 F304(L)
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A182 F316(L)
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2
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立升式閥瓣
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Piston Disc
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A276 410
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A276 304
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A276 F304(L)
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A276 F316(L)
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3
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墊片
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Gasket
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Corrugated SS+graphite
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SS+PTFE
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4
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閥蓋
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Bonnet
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A105
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A182 F22
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A182 F304(L)
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A182 F316(L)
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5
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銘牌
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Nameplate
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|
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6
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螺栓
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Bolt
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A193 B7
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A193 B16
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A193 B8M
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A193 B8M
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7
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球
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Ball
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A182 F304
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A182 F304
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A182 F304
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A182 F304
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適用介質(zhì) Suitable Medium
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(水、油、氣等)W.O.G.etc
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(酸類)HNO3,CH3OOH etc
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適用溫度Suitable Temperature
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-29℃～425℃
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-29℃～550℃
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-29℃～180℃
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四、H41H鍛鋼法蘭止回閥尺寸表
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通徑
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縮徑RB
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3/8
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1/2
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3/4
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1
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1 1/4
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1 1/2
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2
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|
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NPS
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全徑FB
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3/8
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1/2
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3/4
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1
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1 1/4
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1 1/2
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2
|
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L
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150～800Lb
|
79
|
79
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92
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111
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120
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152
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172
|
200
|
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900～1500Lb
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111
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111
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111
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130
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152
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172
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220
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220
|
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H(OPEN)
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150～800Lb
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61
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61
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65
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79
|
95
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103
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118
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132
|
|
900～1500Lb
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65
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79
|
79
|
97
|
104
|
120
|
139
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215
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Weights
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Bolted
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150～800Lb
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1.4
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1.2
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1.5
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3.1
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3.9
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5.6
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8.9
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12.5
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900～1500Lb
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1.6
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3.4
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3.3
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5.5
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6.0
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9.2
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12.9
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16.2
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Welded
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150～800Lb
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1.1
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1.0
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1.2
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2.9
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3.3
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4.9
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8.1
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10.9
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900～1500Lb
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1.3
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3.2
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3.1
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4.8
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5.4
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8.5
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11.2
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14.3
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