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Pneumatic pilot solenoid valve installation precautions 1, can not be used in explosive hazardous situations, if the operating conditions, please select the explosion-proof coil 2, before installing the solenoid valve, the pipeline must be clean. It is advisable to install filters in front of the valve and steam traps to install traps. 3, in the solenoid valve failure, in order to promptly isolate the solenoid valve, and to ensure the normal operation of the system, it is best to install a bypass device. 4, the installation solenoid valve coil up, and maintain the vertical position, the solenoid valve arrow or mark should be consistent with the flow of the pipeline shall not be installed in a place splashing water or water leakage. 5, before installation, pay attention to see the product signs, read the manual carefully to determine whether the product meets the conditions of use. 6, the valve can not be installed in the pipeline depression, so as to avoid steam condensate, impurities and other precipitation in the valve and impede the action. 7, in the pipeline system, the diameter of the solenoid valve installed in the branch should be smaller than the diameter of the main pipeline valve. 8, in the case of inadequate pipeline rigidity, it is recommended to pre-valve pipe with a fixed bracket, so as to avoid vibration caused by the solenoid valve work. 9, the solenoid valve working medium should be clean without particulate impurities, solenoid valve on the surface of the dirt and filters on the need to regularly clean. 10, before and after the solenoid valve to be installed on the pipeline pressure gauge in order to observe the pipeline pressure.