Common high temperature oil pump gear fault 2)

the air suction is common high temperature oil pump gear fault, the following describes the air inhaled elimination method failure:
. CB - B type heat pump gear pump cover is in direct contact, both sides of the seal, if the contact surface roughness meet the requirements of the regulations, the pump at work to inhale air; Also, the pump side cover and direct contact between the gland, the air is very easy to invade, if it is plastic gland, because of its damage or deformation due to temperature changes, also make the untight seal into the air. Solution is this: when the pump or pump cover less than requirement of flatness requirement, you can use the strip shape line emery grinding back and forth, surface grinding machine, also can grind, so there is no more flatness is greater than the mu m, required, and need to make sure that the vertical plane and the hole in the pump cover and gland leakage, can be coated with epoxy resin adhesive seal.
。 Framing commonly used heat pump shaft sealing seal. If closed lips twist spring, or oil, packaging or torn lips, ageing resistance, often in a passive state of the air pressure to seal the back-end suction, and can replace the new oil seal. This site keywords: pneumatic ball valve pneumatic ball valve pneumatic pneumatic valve pneumatic pneumatic valve