截止阀(GlobeValve)的启闭件是塞形的阀瓣,密封面呈平面或锥面,阀瓣沿流体的中心线作直线运动。阀杆的运动形式,有升降杆式(阀杆升降,手轮不升降),也有升降旋转杆式(手轮与阀杆一起旋转升降,螺母设在阀体上)。截止阀只适用于全开和全关,不允许作调节和节流。主要特点及用途1.结构紧凑、设计合理,阀门刚性好,通道流畅,流阻系数小。2.密封面采用不锈钢和硬质合金,使用寿命长3.采用柔性石墨填料、密封可靠、操作轻便灵活4.驱动方式分手动、电动、气动、齿轮传功,结构型式:弹性楔式单闸板、刚性楔式单闸板和双闸板型式。5.广泛适用于石油化工,火力发电厂等油品、水蒸汽管路上作接通或截断管路中介质的启闭装置。主要性能规范试验压力公称压力PN(MPa)实验压力(MPa)壳体密封(液)密封(气)上密封1.62.41.80.61.82.53.82.80.62.84.06.04.40.64.46.49.67.00.67.010.015.011.00.611.016.024.018.00.618.0适用范围壳体材料适用介质适用温度(℃)碳素钢(C型)水、蒸汽、油品≤425硝酸类≤200醋酸类≤200水、蒸汽、油品≤550主要零件材料阀体、阀盖阀板、阀座阀杆阀杆螺母填料手轮碳素钢优质碳钢+硬质合金或不锈钢铬不锈钢铝青铜石墨石棉盘根可锻铸铁铬镍钛钢不锈钢、不锈钢+硬质合金铬镍钛不锈钢铝青铜浸聚四氟乙可锻铸铁铬镍钼钛钢不锈钢、不锈钢+硬质合金铬镍钼钛不锈钢铝青铜烯石棉盘根可锻铸铁铬钼钢合金钢+硬质合金铬钼铝钢铝青铜柔性石墨可锻铸铁主要尺寸及重量公称通径主要外形尺寸和连接尺寸(mm)电动装置重量LDD1D2bfz-dHZ940H-16CZ940Y-16PZ940Y-16RZ940W-16PZ940W-16RZ940Y-16IZ941YZ941Z941Z941Z941Z94140200145110851634-18595DZW1556502501601251001634-18653DZW2059652651801451201834-18665DZW2062802801951601352038-18725DZW20741003002151801552038-18787DZW20921503502802402102438-23955DZW3016120040033529526526312-231105DZW3021925045040535532030312-251343DZW4537630050046041037530412-251516DZW6048435055052047043534416-251678DZW6069540060058052548536416-301849DZW9097745065064058554540420-301937DZW90103350070070565060844420-342234DZW120108760080084077071848520-412432DZW180135770090091084078850524-412489DZW25014818001000102095089852524-412643DZW3501845注:DN700、DN800的型号为Z942型NOTE:DN700、DN800typeisZ942.主要尺寸及重量公称通径主要外形尺寸和连接尺寸(mm)电动装置重量(kg)LDD1D2bfz-dHZ940H-25CZ940Y-25PZ940Y-25RZ940W-25PZ940W-25RZ940Y-25IZ941YZ941Z941Z941Z941Z94140200145110851834-18595DZW1560502501601251002034-18653DZW2064652651801451202238-18665DZW2065802801951601352238-18725DZW20791003002301901602438-23787DZW20981253252702201882838-25902DZW301541503503002502183038-25955DZW3016820040036031027834312-251105DZW4521925045042537033236312-301343DZW4539030050048543039040412-301516DZW6050535055055049044844416-301678DZW6073640060061055050548416-341849DZW90102745065066060055550416-341937DZW90113950070073066061052420-342234DZW120122860080084077071856520-412432DZW180150270090095587581560520-412489DZW25016178001000107099093064524-482643DZW3501923DN700、DN800的型号为Z942型NOTE:DN700、DN800typeisZ942.主要尺寸及重量Maindimensionsandweight公称通径主要外形尺寸和连接尺寸(mm)电动装置重量(kg)LDD1D2D6bz-dff2HZ940H-40Z940Y-40PZ940Y-40RZ940W-40PZ940W-40RZ940Y-40IZ941YZ941Z941Z941Z941Z941402001451108576184-1834617DZW15465025016012510088204-1834665DZW205865280180145120110228-1834680DZW206880310195160135121228-1834752DZW2080100350230190160150248-2334.5846DZW30108150450300250218204308-2534.51087DZW452582005503753202822603812-3034.51243DZW453662506504453853453134212-3434.51429DZW604723007505104504083644616-3444.51608DZW906733508505705104654225216-34451738DZW908044009506555855354745816-41451897DZW120108145010506806105605246020-41452104DZW180125950011507556706125766220-48452401DZW1801348主要尺寸及重量公称通径主要外形尺寸和连接尺寸(mm)电动装置重量(kg)LDD1D2D6bz-dff2HZ940H-64Z940Y-64PZ940Y-64RZ940W-64PZ940W-64RZ940Y-64IZ941YZ941Z941Z941Z941Z941502501
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