美标止回阀
详细介绍
止回阀特点
①产品的设计制造符合美国国家标准ANSIB16.34，美国石油协会标准APl6D要求。②阀瓣为旋启式，流道为直通式，水平管道、垂直管道均可安装。③摇杆销轴采用内装式结构，减少了外泄漏缺点。④阀体，阀盖为螺栓连接，高压情况下(PN≥10MPa)。中法兰采用内压自密封结构，使得产品体积小，重量轻，密封可靠。
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名称
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止回阀
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设计标准
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APl6D．JlS B2074-2084
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结构长度
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ANSIB16.10,JISB2002
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配管法兰
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ANSI B16.5、JISB2212-2214
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对焊端尺寸
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ANSlB16.25
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检验与试
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APl6D或APl598,JlSB2003
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试压规范
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压力等级或公称压力
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壳体试验
(Mpa) |
密封试验 (MPa)
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高压液密封
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低压气密封
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||
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150Lb．PN2.0MPa
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2.94
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2.16
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0.6
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300Lb．PN5．OMPa
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7.67
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5.62
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600Lb．PNl O.OMPa
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15.3
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11.23
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JISlOK
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2.1
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1.6
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JIS20K
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5.1
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3.8
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主要零件材料及性能规范
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零件名称
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材料
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||||||||
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阀体
阀盖 阀瓣 摇杆 |
ASTM A216
WCB |
ASTM A351
CFB |
ASTM A351
CF8M |
ASTM A351
CF3 |
ASTM A351
CF3M |
||||
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销轴
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1Crl3
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OCrl8Ni9
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OCrl7Nil2M02
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OOCrl9Nil0
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OOCrl7Nil4M02
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||||
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F6a
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304
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316
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304L
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316L
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|||||
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阀瓣
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密封面
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13Cr
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13Cr
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STL
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本体 本体 STL
本体 STLR STL |
||||
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阀座
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13Cr
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STL
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STL
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||||||
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阀瓣螺母
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1Crl3
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0Crl8Ni9
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OCrl7Nil2M02
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00Crl9NilO
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OOCrl7Ni4M02
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||||
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410
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304
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316
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304L
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316L
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|||||
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防松销
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OCCr8Ni9
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0Crl7Nil2M02
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00Crl9NilO
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00Crl7Nil4M02
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304
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316
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304L
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316L
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||||||
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垫片
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柔性石墨复合垫 (芯板：碳钢或不锈钢)不锈钢带，柔性石墨缠绕垫
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||||||||
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中法兰螺栓
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350CrM0
ASTM A193 B7 |
OCr18Ni9 ASTMA193 B8
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|||||||
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中法兰螺母
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45
ASTM A1 94 2H |
OCr18Ni9 ASTM A194 8
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适用
工况 |
适用介质
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水、蒸汽、油品等
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硝酸等腐蚀介质
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醋酸等腐蚀介质
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强氧化性介质
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尿素等腐蚀性介质
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|||
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适用温度 (℃)
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-29～425
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-40～200(超出该温度范围、请在订货时注明)
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注： 1如法兰密封面采用凸面以外的型式。请在订货时注明。
[H44]主要连接与外形尺寸及重量
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磅级
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公称通径(DN)
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主要连接尺寸 (mm)
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H44外形尺寸
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重量
(kg) |
|||||||
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in
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mm
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L
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D
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D1
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D2
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b
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f
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z-φd
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H
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||
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150Lb
(2.0Mpa) (10K) |
2
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50
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203
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152
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120.5
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92
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16
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1.6
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4-19
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165
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17
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21/2
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65
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216
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178
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139.5
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105
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17.5
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1.6
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4-19
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175
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25
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3
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80
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241
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190
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152.5
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127
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19.5
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1.6
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4-19
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190
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29
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4
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100
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292
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229
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190.5
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157
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24
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1.6
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8-19
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215
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50
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5
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125
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330
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254
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216
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186
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24
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1.6
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8-22
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245
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75
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6
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150
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356
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279
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241.5
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216
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25.5
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1.6
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8-22
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265
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85
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8
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200
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495
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343
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298.5
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270
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29
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1.6
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8-22
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320
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150
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10
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250
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622
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406
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362
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324
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30.5
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1.6
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12-25
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365
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240
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12
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300
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698
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483
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432
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381
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32
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1.6
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12-25
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415
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350
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|
|
14
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350
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787
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533
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476
|
413
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35
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1.6
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12-29
|
460
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460
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16
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400
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864
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597
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540
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470
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37
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1.6
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16-29
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495
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580
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20
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500
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978
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698
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635
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584
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43
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1.6
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20-32
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590
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840
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24
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600
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1295
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813
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749.5
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692
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48
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1.6
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20-35
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650
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1140
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28
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700
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1448
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927
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863.5
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800
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71.5
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1.6
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28-35
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300Lb
(5.0MPa) (20K) |
2
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50
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267
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165
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127
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92
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22.5
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1.6
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8-19
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190
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28
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21/2
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65
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292
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190
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149
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105
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25.5
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1.6
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8-22
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205
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33
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3
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80
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318
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210
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168
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127
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28 5
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1.6
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8-22
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220
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45
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4
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100
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356
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254
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200
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157
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32
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1.6
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8-22
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245
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70
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5
|
125
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400
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279
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235
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186
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35
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1.6
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8-22
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275
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110
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6
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150
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444
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318
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270
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216
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36.5
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1.6
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12-22
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295
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150
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8
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200
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533
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381
|
330
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270
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41.5
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1.6
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12.25
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330
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230
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10
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250
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622
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444
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387.5
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324
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48
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1.6
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16-29
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420
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390
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12
|
300
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711
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521
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451
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381
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51
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1.6
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16-32
|
480
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520
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|
14
|
350
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838
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584
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514.5
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413
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54
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1.6
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20-32
|
535
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710
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|
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16
|
400
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864
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648
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571.5
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470
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57.5
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1.6
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20-35
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585
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890
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20
|
500
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1016
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775
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686
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584.5
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63.5
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1.6
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24-35
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685
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1360
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24
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600
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1364
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914.5
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813
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692.5
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70
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1.6
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24-41
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785
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2040
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600Lb
(10.0MPa) |
2
|
50
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292
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165
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127
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92
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26
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6.4
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8-19
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210
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32
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21/2
|
65
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330
|
190
|
149
|
100
|
29
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6.4
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8-22
|
230
|
42
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|
|
3
|
80
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356
|
210
|
168
|
127
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32
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6.4
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8-22
|
255
|
60
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|
|
4
|
100
|
432
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273
|
216
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157
|
38
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6.4
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8-25
|
295
|
95
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|
|
5
|
125
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508
|
330
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266.5
|
186
|
45
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6.4
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8-29
|
310
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120
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6
|
150
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559
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355.5
|
292
|
216
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47.5
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6.4
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12-29
|
365
|
220
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|
|
8
|
200
|
660
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419.5
|
349
|
270
|
56
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6.4
|
12-32
|
420
|
390
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|
|
10
|
250
|
787
|
508
|
432
|
324
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63.5
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6.4
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16-35
|
505
|
630
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|
12
|
300
|
838
|
559
|
489
|
381
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66.5
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6.4
|
20-35
|
545
|
870
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|
|
14
|
350
|
889
|
603.5
|
527
|
413
|
710
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6.4
|
20-38
|
600
|
940
|
|
|
16
|
400
|
991
|
686
|
603
|
470
|
76.5
|
6.4
|
20-41
|
650
|
1100
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