球阀的安装和维护
2019年11月21日
安装前球阀准备确保球阀安装位置的管路处于同轴位置。管道上的两个法兰应平行,并确认管道能承受球阀的重量。2.检查管道内是否有杂质和焊渣,调节阀必须对管道进行清洗。3.检查球阀铭牌,将球阀全开、全关数次,确认球阀能正常工作,并彻底检查球阀的所有细节,确保球阀完好无损。4.取下阀门两端的保护罩,检查阀体是否清洁,清洗阀体腔体,因为球阀的密封面为球型,即使是很小的杂物也可能对密封面造成损坏。球阀的安装 Any section of the ball valve can be installed in the upstream end, Shanghai nimei ball valve handle ball valve can be installed in any position of the pipeline, if equipped with actuator (such as gear box, electric-pneumatic actuator) ball valve, it must be installed vertically, valve inlet and outlet in a horizontal position. 2. Between the ball valve flange and the pipeline flange according to the design requirements of the pipeline with sealing gasket. 3. Bolts on the flange shall be tightened symmetrically, successively and uniformly. 4. If the ball valve with pneumatic, electric and other actuators, according to the manual to complete the installation of air source, power supply. Inspection After Installation Of Ball Valve 1.After installation, start the ball valve open and close several times, should be flexible, uniform force, ball valve work normally. 2. According to the design requirements of pipeline pressure, test the sealing performance of the joint surface of ball valve and pipeline flange after passing through pressure. Ball Valve Maintenance 1. Only by removing the pressure before and after the ball valve can the ball valve be disassembled and decomposed. 2. In the decomposition and reassembly process of the ball valve, it is necessary to protect the sealed parts, especially non-metallic parts, such as o-ring and other parts, with special tools. 3. Bolts must be tightened symmetrically, step by step and evenly when the ball valve body is reassembled. 4. Cleaning agent should be compatible with rubber parts, plastic parts, metal parts and working medium (such as gas) in the ball valve.When the working medium is gas, gasoline (gb484-89) can be used to clean the metal parts.Clean nonmetallic parts with purified water or alcohol. 5. The decomposed individual parts can be cleaned by immersion washing.The metal parts that have not been decomposed can be cleaned by a clean and fine dip silk cloth with cleaning agent (to avoid fiber falling off and sticking to the parts).When cleaning, remove all the grease, dirt, glue, dust etc. 6, non-metallic parts should be imm...
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