Gear pump in operation should be no abnormal sound, to see whether the seal has run, run, drop, leakage, pressure gauge, control valve work reliably, the performance indicators to meet the specification of rated capacity or to meet the production requirements. But due to normal wear and tear or parts material aging, failure will occur.
Gear pump pressure is insufficient or rising fault reasons and treatment:
1, pneumatic gear pump pressure regulating valve improper regulation; Adjust pressure valve to desired pressure
2, pressure control valve failure; Overhaul pressure regulation wide 3 pressure gauge ling; Overhaul or replace the pressure gauge
Gear pump bearing gear pump pressure drop fault reason and treatment:
1. Insufficient oil replenishment of gear oil replenishment valve; To repair the valve
2. Insufficient feed or leakage of feed valve; Inspect the feed condition and feed valve
3. The plunger seals oil leakage; Maintenance seal
4. The oil level of the storage tank is too low; Inject new oil
5. Leakage of pump body or damage of diaphragm; Check for replacement of gasket or diaphragm.
Gear pump pneumatic gear pump is driven by compressed air, through the diaphragm reciprocating deformation caused by volume change of displacement pump, its working principle is similar to gear pump.
What happens to the pressure system that you need to pay attention to?
1. The inlet pressure shall not exceed the higher allowable pressure of the pump. The compressed air above the rated pressure may cause personal injury and property loss and damage the performance of the pump.
2. Ensure that the pipeline system of pump pressure can withstand higher output pressure, and ensure the cleanness and normal working conditions of the driving gas system.
3. Electrostatic spark may cause explosion, which may lead to casualties and property losses. Use the lead with sufficient cross-sectional area as required to properly and reliably ground the grounding screw on the pump.
4. Tighten the pump and the connecting pipe joints to prevent electrostatic spark caused by vibration, impact and friction. Use antistatic hose.
5, check the sealing parts of the centrosome, if serious wear, it can not achieve the sealing effect, and the air will be discharged from the air outlet end. Because of its special construction, use only GLYD circles.
6. Check the type of lubricating oil. If the lubricant added is higher than the recommended viscosity, the piston may become stuck or operate improperly. It is recommended to use light and frost resistant lubricating oil.
This series of pneumatic gear pump is placed in various special occasions, used for pumping various conventional pump can not pump medium, have achieved satisfactory results. Pneumatic gear pump is a new type of transmission machinery, is a relatively new type of pump at home.
