|Place of Origin:||NINGBO|
|Model Number:||QG - Z - 20A|
|Minimum Order Quantity:||1 PC|
|Packaging Details:||Plastic Bags , Boxes , Carton , Pallet Or As Customer Advice|
|Payment Terms:||L/C, T/T, Western Union|
|Pressure:||0 . 3 - 0 . 6MPa||Temperature:||- 25 ~ 60 ℃|
|Relative Humidity:||≤ 85 %||Medium:||Clean Air|
|Voltage:||AC220V / DC24V / AC110V / AC24V Customized||Body:||ADC 12 Die Cast|
QG-Z-20A Series Pneumatic Pulse Valve Right Angle Type 220VAC / 24VDC / 110VAC GOYEN Type
|Ambient Temperature||-25~60℃ Customized for lower or higher temperature|
|Working Medium||Clean Air|
|Diaphragm Life||Over One Million Cycles|
|Cv/Kv||Call us for detail|
Body : ADC12 die cast
Armature : 430 FR stainless steel
Diaphragm : Nitrile or Viton
Spring : 321 stainless steel
Fasteners : 302 stainless steel
Good quality membranes shall be selected and used for all the valves , with each part checked in each manufacturing procedure , and put into the assembly ling conforming to all the procedures . Every finished valve shall be taken the electriferous blowing test .
During installation and commissioning
1 . The valves cannot all be opened, but the leading part does act.
2 . Some valves do not work, but the others are normal.
3 . The valves cannot all be closed. There is leakage. There is no way to establish a gas dome.
4 . Some valves cannot be closed. There is leakage.
5 . A valve closing is slowly.
1 . Check the gas dome pressure to see if it is too low.
2 . Check the valve coil connection and coil
3 ( 1 ) . Y-valve. Some valves for the same gas dome are leaking, thus causing leakage for all the valves.
3 ( 2 ) . Z-valve. The valve inlet and blowing muzzle are installed backwards.
4 . There is some dirt or debris on the membrane, ii is blocking the moving iron core.
5 . The membrane orifice is blocked.
1 . Check the leakage
2 . Replace the accessories
3 ( 1 ) . Check the leakage
3 ( 2 ) . Re-install
4 . Clean the membrane and check that the membrane is complete. Check the moving iron core and air lock.
5 . Dredge the membrane orifice
During use period
1 . Some valves are leaking. The membrane cannot close tightly and the valve is always open a
2 . Coil is hot and burned out.
3 . Voltage exists but the valve does not operate.
4 . Ambient temperature is below -20℃. The valve is leaking and cannot open.
1 . There is some dirt or debris on the membrane, the leading part is damaged. Moving iron core is blocked.
2 . It has been turned on for too long.
3 . Membrane is damaged and the orifice is blocked.
4 . Ambient temperature is too low and here is frost in the valve.
1 . Clean the membrane and check that the membrane piece is complete. Check the moving iron core and the air lock. Replace the accessories if necessary.
2 . Check the working condition of the control system.
3 . Replace the accessories in time.
4 . Pay attention to insulation and maintaining proper temperatures.