译文：
安装与维护 1．安装前应仔细核对管路的运行条件是否与本阀规定的适用范围相符，并应清洗内腔，以防污物卡阻或损伤密封部件。 2．橡胶衬里层合橡胶隔膜表面切勿涂刷油脂类物品，以防橡胶溶胀，影响阀门使用寿命。 3．安装时不得将线索系结在手轮或阀杆上起吊阀门。 4．手动操作阀门时，不得借助于辅助杠杠，以防扭力过大而损伤驱动部件或密封部位。 5．阀门应存放在干燥通风的室内，严禁堆放，库存阀门的两端通道必须封口，且启闭件应处于微开启状态。 故障与xx 可能产生的故障 原因 xx方法 手轮操作不灵活 1．阀杆变曲 2．螺纹损伤 1更换阀杆 2．修整螺纹并加润滑油 气动时阀门不能自动启闭 1．气源压力过低 2．弹簧预紧力过大 3．橡胶隔膜损坏 1．调高供气压力 2．减少弹簧预紧力 3．更换隔膜 阀体与阀盖连接处渗漏 1．连接螺栓松动 2．阀体衬胶层破裂 1．紧固连接螺栓 2．更换阀体

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原文：
Installation and Maintenance 1. Prior to installation pipe run should be carefully checked whether the conditions of application of the provisions of this scope of valves in line and should be cleaned cavity to prevent dirt jamming or damage sealing components. 2. Rubber lining the surface of laminated rubber diaphragm items not brushing fats and oils to prevent the rubber swelling, affecting valve life. 3. Installation shall not be binding clues in hand wheel or stem valve on the lifting. 4. Manual operation valve shall not be by means of auxiliary bars bars to prevent excessive torque while the injury-driven components or sealed position. 5. Valves should be stored in dry and well ventilated room, is strictly prohibited stacking, inventory, access must be sealed at both ends of the valve, and open and close cases should be in slightly open. Fault and the eradication of Cause of the malfunction that may arise from the elimination method Handwheel operation is not flexible and 1. Stem bending 2. Thread damage a replacement stem 2. Trimming thread and add oil Pneumatic valves can not automatically open and close when 1. Air pressure too low 2. Spring preload is too large 3. Rubber Diaphragm damaged 1. Increase in gas pressure 2. Reduce spring preload 3. Replacement diaphragm Body junction leakage and the valve cover 1. Connecting bolt loose 2. Body Lining-layer breakdown 1. Connecting bolt fastening 2. Valve Replacement