J44H高压角式截止阀J44H高压角式截止阀产品概述：截止阀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。截止阀属于强制密封式阀门，所以在阀门关闭时，必须向阀瓣施加压力，以强制密封面不泄漏。当介质由阀瓣下方进入阀六时，操作力所需要克服的阻力，是阀杆和填料的磨擦力与由介质的压力所产生的推力，关阀门的力比开阀门的力大，所以阀杆的直径要大，否则会发生阀杆顶弯的故障。近年来，从自密封的阀门出现后，截止阀的介质流向就改由阀瓣上方进入阀腔，这时在介质压力作用下，关阀门的力小，而开阀门的力大，阀杆的直径可以相应地减少。同时，在介质作用下，这种形式的阀门也较严密。我国阀门“三化给”曾规定，截止阀的流向，一律采用自上而下。截止阀开启时，阀瓣的开启高度，为公称直径的25%～30%时，流量已达到***大，表示阀门已达全开位置。所以截止阀的全开位置，应由阀瓣的行程来决定。设计与制造标准：●设计与制造：HG/T3156●法兰尺寸：GB9113●结构长度：GB12221●检验与实验：GB/T13927性能与规范公称压力1632Mpa壳体试验2448密封试验17.635.2气密封试验0.5-0.7适用介质CPR水、油品、蒸汽氮氢混合气碱液、液氨适用温度(℃)≤200主要连接与外形尺寸：型号通径DN(mm)主要连接尺寸外形尺寸LDD1MD2bZ-фdLOHH1AJ44H-320AL44H-3203607042M14×1.510153-1610071776607042M14×1.510153-161508094J44Y-160L44Y-16010909560M24×210203-18200260275151059560M24×216203-18200268288J44Y-320L44Y-32010909560M24×210203-182002682751510510568M33×217203-18200268288J44Y-160L44Y-1602512010268M33×228203-183002252453213511580M42×237224-1830022224840165165115M52×247286-2635026530050190165115M64×359326-26400303345J44Y-320L44Y-3202512011580M42×235224-183002252453213513595M48×241254-2230022224840165165115M64×358326-2635026530050190200145M80×370406-29400303345GJ44H-160GL44H-16065215200145M80×373406-2971043049080260225170M100×393506-33810520600100290260195M125×4115606-36850595685GJ44H-320GHJ44H-32065215225170M100×390506-3371043049080260260195M125×4112606-36810520600100290300235M155×4130758-39850595285型号通径DN(mm)主要连接尺寸外形尺寸LDD1MD2bZ-фdLOHH1AJ44H-320AL44H-3203607042M14×1.510153-1610071776607042M14×1.510153-161508094J44Y-160L44Y-16010909560M24×210203-18200260275151059560M24×216203-18200268288J44Y-320L44Y-32010909560M24×210203-182002682751510510568M33×217203-18200268288J44Y-160L44Y-1602512010268M33×228203-183002252453213511580M42×237224-1830022224840165165115M52×247286-2635026530050190165115M64×359326-26400303345J44Y-320L44Y-3202512011580M42×235224-183002252453213513595M48×241254-2230022224840165165115M64×358326-2635026530050190200145M80×370406-29400303345GJ44H-160GL44H-16065215200145M80×373406-2971043049080260225170M100×393506-33810520600100290260195M125×4115606-36850595685GJ44H-320GHJ44H-32065215225170M100×390506-3371043049080260260195M125×4112606-36810520600100290300235M155×4130758-39850595285公称压力1632Mpa壳体试验2448密封试验17.635.2气密封试验0.5-0.7适用介质CPR水、油品、蒸汽氮氢混合气碱液、液氨适用温度(℃)≤200本公司经营高压角式截止阀，质量保证，欢迎咨询洽谈。)