Use and maintenance of solenoid pneumatic valve

the use and maintenance:, it is recommended to use unit with the designation of personnel responsible for, use and maintenance, - every year Time of preventive maintenance is solenoid pneumatic valve and reliable work and the best way to longevity. Solenoid pneumatic valve inside the following kinds of situation, obstruct electromagnetic pneumatic valve normal work and shorten life. (1), the use of medium change in [2] over the rust, (3), air compressor oil oxidation, carbon grain of tar and other sundry, mixed with the pipe. Pipeline there are impurities such as dust dirt, solenoid pneumatic valve is installed, or again after stopping for a long time when in operation, please try access into the medium action several times working properly rear can officially use pneumatic valve, steam again after long time stop running, should be no net condensate try several times, after working properly rear can put into operation. , before maintenance, must cut off the power and discharge pressure of medium. , coil components should not open it, open solenoid pneumatic valve and clean, can use kerosene ` solution such as trichloroethylene. But should pay attention to the rubber parts may dissolve, so want to change it. When cleaning, apart, all parts are to recover installed in sequence. Equipped with wearing parts, my company, please follow the instructions when necessary and declared in order. And disassembly sequence, wearing parts and other matters have an unknown place, please consult technical department ( Hotline: - ） Reading the use of the product manual carefully before installation, check whether the product completely conform to the requirements of the use, familiar with the key points of installation, ready for work. When installing electromagnetic solenoid coil up, and keep the vertical position, the arrow or mark in the solenoid pneumatic valve should be consistent with the pipe flow, shall not be installed in places with splashing water or water leakage. Over before use. MPa pressure pipe fully flush, the metal powder in the pipeline sealing material residues, completely removed rust scale, etc; Working medium of pneumatic valve should be clean and no impurity particles, suggest to install filters before the pneumatic valve, steam piping installation hydrophobic pneumatic valve; Electromagnetic pneumatic trims on the surface of the dirt and filters, must be clean regularly. In the electromagnetic pneumatic valve failure occurs, in order to timely isolation solenoid pneumatic valve, and ensure the normal operation of the system, the best install bypass device. As shown in figure ( A) 。 When the solenoid pneumatic valve installed in the branch, the calibre of the solenoid pneumatic valve should be smaller than main line of the pneumatic valve diameter, as shown in figure ( 2) Shunt device. Note: the branch on the pneumatic valves must be closed. Don't install the pneumatic valve in pipe dips, in order to avoid steam condensation water, impurities, such as the precipitation in the pneumatic valve and interfere with the action. Normal electromagnetic pneumatic valve cannot be used in inflammable and explosive dangerous places. In the pipes under rigid, recommend to use pneumatic valve and pipe bracket, in case of electromagnetic vibration caused by pneumatic valve work. Electromagnetic air valve on the pipeline before and after the need to install pressure gauge, in order to observe the pipe pressure.
故障分析与排除方法：





故 障

原因分析

处理方法


通电不动作

电源接线接触不良电源电压变动不在允许范围内线圈短路或烧坏

接好电源线调整电压在正常范围内更换线圈


开气动阀时流体不能通过

流体压力或工作压差不符合流体粘度或温度不符合气动阀芯与动铁芯周围混入杂垢、杂质气动阀前过滤器或导气动阀孔堵塞使用时工作频率太高或寿命到期

调整压力或工作压差或更换适合的产品更换适合的产品对内部进行清洗 , 气动阀前必须安装过滤气动阀及时清洗过滤器或导气动阀孔改选产品型号或更换新产品


关气动阀时流体不能切断

流体粘度不符合流体温度不符合弹簧变形或寿命到期气动阀座有缺陷或粘附赃物密封垫脱出 ` 缺陷或变形平衡孔或节流孔堵塞使用时工作频率太高或寿命到期

更换合适的产品更换合适的产品加垫片或更换弹簧清洗、研磨或更新更新、 重新装配及时清洗则改选产品型号或改换新产品


外漏

管道连接处松动管道连接外密封件损坏

拧紧螺栓或接管螺纹更换密封件


内泄漏严重

流体温度不符合导气动阀座与主气动阀座有杂质或缺陷导气动阀与主气动阀密封垫脱出或变形弹簧装配不良、变形或寿命到期使用时工作频率太高

调整流体温度或更换如有则清洗或研磨修复或更换更换密封垫更换弹簧改选产品型号或更换新产品


通电时噪音过大

紧固件松动电压波动 , 不在允许范围内流体压力或工作压差不适合流体粘度不符合衔铁吸合面有杂质

拧紧调整到正常范围内调整压力或工作压差或更换产品更换适合的产品及时清洗