J41H高压法兰截止阀一、高压法兰截止阀概述J41H高压法兰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）。高压法兰截止阀只适用于全开和全关，不允许作调节和节流。二、规格主要尺寸和重量4.0MPaDNLDD1D2bHD0重量凹凸法兰MFMJ41HJ41YJ41WJ41FJ41N4040P40R40I201501057551162751407251601158558162851609321801351006618302180124020014511076183552001750230160125882037324024652901801451102240828033803101951601212243632044100350230190150244803606012540027022017628588400901504803002502043061140010020053337532026038720400190)