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美標(biāo)鑄鋼閘閥


優(yōu)點(diǎn):

1.美標(biāo)閘閥流體阻力小。閘閥閘體內(nèi)部介質(zhì)通道是直通的,介質(zhì)流經(jīng)閘閥時(shí)不改變其流動(dòng)方向,因而流動(dòng)阻力較小。
2.啟閉較省力。啟閉時(shí)閘板運(yùn)動(dòng)方向與介質(zhì)流動(dòng)方向相垂直。與截止閥相比,API閘閥的啟閉較為省力。
3.介質(zhì)流動(dòng)方向一般不受限制。介質(zhì)可從閘閥兩側(cè)任意方向流過,均能達(dá)到接通或截?cái)嗟哪康摹1阌诎惭b,適用子介質(zhì)的流動(dòng)方向可能改變的管路中。

工作原理:
美標(biāo)閘閥的啟閉件是閘板,閘板的運(yùn)動(dòng)方向與流體方向相垂直,閘閥只能作全開和全關(guān),不能作調(diào)節(jié)和節(jié)流。楔式閘閥的閘板可以做成一個(gè)整體,叫做剛性閘板,也可以做成能產(chǎn)生微量變形的閘板,以改善其工藝性,彌補(bǔ)密封面角度在加工過程中產(chǎn)生的偏差,這種閘板叫做彈性閘板。閘閥關(guān)閉時(shí),密封面可以只依靠介質(zhì)壓力來密封,即依靠介質(zhì)壓力將閘板的密封面壓向另一側(cè)的閥座來保證密封面的密封,這就是自密封。大部分閘閥是采用強(qiáng)制密封的,即閥門關(guān)閉時(shí),要依靠外力強(qiáng)行將閘板壓向閥座,以保證密封面的密封性。                                

設(shè)計(jì)與制造結(jié)構(gòu)長度法蘭尺寸對(duì)焊連接尺寸壓力—溫度試驗(yàn)—檢驗(yàn)
APl6D、600ANSI B16.10ANSI B16.5ANSIBl6.25ANSIBl6.34APl598、APl6D

主要部件材料:

Z41H、Z41Y 型 150(Lb)~600(Lb) 鋼制楔式閘閥零部件材料
型號(hào)材料
閥體,閥蓋,閘板閥桿密封面填料
Z41Y-150(Lb)碳素鋼鉻不銹鋼堆焊硬質(zhì)合金石棉石墨或柔性石墨
Z41Y-300(Lb)I鉻鉬鋼鉻不銹鋼堆焊硬質(zhì)合金石棉石墨或柔性石墨
Z41Y-150(Lb)P鉻鎳鈦鋼鉻鎳鈦鋼
Z41Y-150(Lb)R鉻鎳鉬鈦鋼鉻鎳鉬鈦鋼
Z41Y-300(Lb)碳素鋼鉻不銹鋼堆焊硬質(zhì)合金石棉石墨或柔性石墨
Z41Y-300(Lb)I鉻鉬鋼鉻不銹鋼堆焊硬質(zhì)合金石棉石墨或柔性石墨
Z41Y-300(Lb)P鉻鎳鈦鋼鉻鎳鈦鋼
Z41Y-300(Lb)R鉻鎳鉬鈦鋼鉻鎳鉬鈦鋼
Z41Y-600(Lb)碳素鋼鉻不銹鋼堆焊硬質(zhì)合金石棉石墨或柔性石墨
Z41H-600(Lb)I鉻鉬鋼鉻不銹鋼堆焊硬質(zhì)合金石棉石墨或柔性石墨
Z41H-600(Lb)P鉻鎳鈦鋼鉻鉬釩鋼

Z41Y-600(Lb)R鉻鎳鉬鈦鋼鉻鎳鉬鈦鋼堆焊硬質(zhì)合金石棉石墨或柔性石墨

零部件材料:                            

主要
零件
材料
閥體閥蓋閘板WCBZG1Cr18Ni9TiCF8(304)CF3(304L)ZG1Cr18Ni12Mo2TiCF8M(316)CF3M(316L)
密封面Cr13或硬質(zhì)合金本體或硬質(zhì)合金
閥桿及內(nèi)件2Cr131Cr18Ni9TiOCr18Ni9
(304)
O0Cr18Ni11
(304)
1Cr18Ni12Mo2Ti0Cr17Ni12Mo2
(316)
00Cr17Ni14Mo2
(316L)
填料低壓油浸石墨石棉盤根浸聚四氟乙烯石棉盤根、柔性石墨
中高壓夾不銹鋼石墨石棉盤根
墊片低壓橡膠石棉板耐蝕石棉板
中高壓纏繞墊片不銹鋼纏繞墊片
適用工況適用介質(zhì)水蒸汽油品等銷酸等腐蝕性介質(zhì)強(qiáng)氧化介質(zhì)醋酸等腐蝕性介質(zhì)尿酸等腐蝕性介質(zhì)
適用溫度(℃)-29~425-40~200(超出該溫度范圍,請(qǐng)?jiān)谟嗀洉r(shí)注明)

主要外形尺寸及連接尺寸:

美標(biāo)(ANSI)150LB
DNDN/inLDD1D2bzxфdH≈Do≈
151/21089060.3359.64xф1618890
203/4117100704311.24xф1620290
25112711079.55112.74xф16225100
321 1/41401158963.514.34xф16252100
401 1/216512598.57315.94xф16277140
50178150120.59214.34xф19323200
652 1/2190180139.510515.94xф19347250
803203190152.512717.54xф19383250
1004229230190.5157.222.38xф19457280
1255254255216185.722.38xф22.5580300
1506267280241.521623.98xф22.5635300
2008292345298.5270278xф22.5762350
2501033040536232428.612xф25.5910400
3001235648543238130.212xф25.51080500
35014381535476.341333.412xф28.51295600
400164065955404703516xф28.51435600
45018432635578533.438.116xф321626650
50020457700635584.241.320xф321829650
60024508815749.5692.246.120xф352175700
75030610985914.585773.128xф352692700
800326601060978914.479.428xф413681
9003671111701085.910228932xф413921
美標(biāo)(ANSI)300LB
DNDN/inLDD1D2bzxфdH≈Do≈
151/21409566.73512.74xф15150100
203/415211582.64314.34xф19160100
2511651258950.815.94xф19186125
321 1/417813598.563.517.54xф19216160
401 1/2190155114.37319.14xф22.5250160
502161651279220.78xф19330250
652 1/2241190149.2104.823.98xф22.5368250
803283210168.3127278xф22.5400300
1004305255200157.230.28xф22.5473300
1255381280235185.733.48xф22.5660350
15064033202702163512xф25.5711350
2008419380330.227039.712xф25.5813400
25010457445387.4323.846.116xф28.5995500
30012502520450.838149.316xф321090600
35014762585514.4412.852.420xф321205600
40016838650571.547055.620xф351367650
45018914710628.6533.458.824xф352077838
50020991775685.8584.26224xф352310889
600241143915812.8692.268.324xф4128101092
美標(biāo)(ANSI)600LB
DNDN/inLDD1D2bzxфdH≈Do≈
151/21659566.73514.34xф15155100
203/419012082.64315.94xф19160100
2512161258950.817.54xф19186125
321 1/422913598.563.520.74xф19216160
401 1/2241155114.37322.34xф22250160
5029216512792.125.48xф19513254
652 1/2330190149.2104.828.68xф22425254
803356210168.312731.88xф22475305
1004432275216157.238.18xф25568356
1255508330266.7185.744.58xф29610406
1506559355292.121647.712xф29730508
2008660420349.227055.612xф32874610
25010787510431.8323.863.516xф35995686
3001283856048938166.720xф351140686
35014889605527412.866.920xф381630762
40016991685603.247076.220xф412032889
450181092745654533.482.620xф442186889
500201194815724584.288.924xф4424201000
600241397940838692.2101.624xф5228451000



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