Pulsed solenoid valve installed Cautions 

 A solenoid valve installation is perpendicular to the horizontal pipe, coil up. Conditions do not permit, allow ± 30 ° tilt. Otherwise, we can not guarantee normal use. 

 2, the solenoid valve on the nameplate parameters should be consistent with the actual requirements. 

 3, the arrow on the solenoid valve body is the medium flow. 

 4, in order to ensure the normal use of solenoid valves, solenoid valve before the installation of oil-water separator. 

 5, in a hazardous environment in order to prevent the occurrence of the spark may lead to explosions and other accidents should be explosion-proof solenoid valves. 

 6, prior to installation, please thoroughly purge the air bag and piping in order to avoid foreign body injury in the diaphragm caused by the solenoid valve failure. 

 7, when the solenoid valve failure, the device isolation and ease of maintenance, the recommended installation of bypass (bypass). 

 Temporarily install the solenoid valve can be stored at 0 ~ 40 ° C, relative humidity ≤ 80%, but non-corrosive gases indoors, if possible, avoid open storage. 
 The technical requirements of the electromagnetic pulse valve 
 1, the working pressure of 0.1MPa ~ 0.7MPa media after degreasing, in addition to water treatment air. 
 2, in the state of the product's nominal gas supply pressure, 85 percent of the solenoid valve rated voltage electromagnetic pulse valve opening response time should be less than 0.03s. 
 3, gas supply pressure is 0.1MPa, the pulse valve is closed. 
 4, the product should be able to withstand the pressure of 0.8MPa gas source. 
 In the specified environmental conditions, the electromagnetic coil of the shell insulation resistance should be greater than 1MΩ. 
 At room temperature 5 degrees to 35 degrees, under the conditions of relative humidity of not more than 85% of the electromagnetic coil on the outer shell can withstand 50Hz, 250V voltage, lasting 1min no breakdown. 
 7, the valve of the electromagnetic pulse under frequency is 20Hz, the whole amplitude of 2mm, which lasted for 30 min vibration should be able to work properly. 
 8, under normal use conditions, the diaphragm cumulative life should be more than 80 million times. 
 The appearance of the valve no obvious coating flaking, scratches, burrs and other damage. 
 Test methods 
 Test environment 
 a) ambient air relative humidity does not exceed 85%; 
 b) the ambient air in corrosive media; 
 c) gas source medium temperature of 1 degree to 50 degrees. 
 Appearance inspection by visual observation. 
 Performance test: 
 1, open voltage test 
 85% of the nominal voltage in clean air access to the inlet air supply pressure of the electromagnetic pulse valve nominal pressure, the solenoid valve input width 0.03s electrical signals, check the electromagnetic pulse valve is open is normal. 
 2, close the air pressure test 
 In the clean air of the electromagnetic pulse valve inlet access of air supply pressure is 0.1MPa, the input signal to close the valve, and check the reliability of electromagnetic pulse valve shut down. 
 3, the pressure resistance test 
 Access to gas supply pressure is 0.8MPa, the clean air in the electromagnetic pulse valve inlet, continuous 60min, check the electromagnetic pulse valve, part of the sealing of the leakage of gas. 
 4, insulation resistance test 
 (1) 500V, range 0MΩ ~ 500MΩ, the accuracy of a megger, under specified environmental conditions, measuring the electromagnetic coil insulation resistance of the shell. 
 (2) the valve is placed in temperature & humidity box, setting it at 35 degrees, relative humidity of 85% under the conditions applied to the electromagnetic coil and valve 50Hz, 250V sinusoidal AC voltage, which lasted 1min, check whether there is a breakdown phenomenon. 
 5, anti-vibration test 
 The valve is fixed on the vibration test workbench to withstand the vibration frequency of 20Hz, the full amplitude is 2mm the lasted 30min vibration, the check valve fasteners loosening is working properly. 
 6, diaphragm life test 
 TMF,-T (DFM-T) electromagnetic pulse valve for straight-through electromagnetic pulse valve, 180 ° angle between its import and export, usually with the air box pulse bag filter matching. Before the diaphragm to electromagnetic pulse valve into the chamber after two, when connected to compressed air, compressed air through the orifice into the chamber, then the chamber pressure diaphragm components close to the output port of the valve electromagnetic pulse valve in the "off" state. Pulse jet control device of electrical signals to the electromagnetic pulse valve armature moved bleed hole to open the chamber after the valve, the post-chamber rapid loss of pressure, the diaphragm assembly shifted blowing compressed air through the valve outlet, electromagnetic pulse valve in the "open" state. Pulse jet control device signals disappear, the electromagnetic pulse valve armature reset, after the chamber put stomatal closure and post-chamber pressure to the diaphragm assembly close to the output port of the valve, electromagnetic pulse valve in the "off" state.