Hydraulic Oil Seal Failure
Hydraulic Oil Seal Failure
(OP)
Hi Everyone
I am facing a frequent failure of Oil seal of Hydraulic Motor, which is used to run LPG pump in bobtail. I tried flushing the line, increasing the pipe size, checking the relief valve. What could be the reasons for this failure? Kindly do share your views.
I am facing a frequent failure of Oil seal of Hydraulic Motor, which is used to run LPG pump in bobtail. I tried flushing the line, increasing the pipe size, checking the relief valve. What could be the reasons for this failure? Kindly do share your views.
RE: Hydraulic Oil Seal Failure
That being the case, then it's worth checking the casing drain line and this again is assuming that you have an piston motor, not a gerotor type.
So, in essence, what I am saying is...we need more information to help you.
RE: Hydraulic Oil Seal Failure
Pressure on the seal too high; return line too small, return goes through a valve that closes when the motor is valved off (cylinfer valve instead of a motor valve), blocked case drain if one exists, no case drain if one is required.
Shaft defect under the seal.
Seal gland bore defect allowing leak past the seal OD.
Wrong seal.
Improperly installed seal.
Ted
RE: Hydraulic Oil Seal Failure
Thanks for your replies, I am sorry for responding late. Pump details as below
Motor:1
Make: Hydrocar
Model: 200FZ0043DS
Type: Gear
Motor:2
Make: OMFB
Model: HDS 47 D (R)
Type: Piston
RE: Hydraulic Oil Seal Failure
RE: Hydraulic Oil Seal Failure
What's the life of the pump?
has anyone checked the pump shaft for any defect?
any excessive vibration during operation?
What about the bearing? is it still ok?
System is clean? Meaning flushing found no contaminant?
RE: Hydraulic Oil Seal Failure
@ BEMPE16524: it is 2years old, and there is no unusual vibrations during operation. I inspected the shaft while it has some thermal stress marks (blue and black) on the edges and root of the rotor. We flushed the system and there was no contamination observed.
Oil leak starts immediately when we start the operation.
RE: Hydraulic Oil Seal Failure
Ted
RE: Hydraulic Oil Seal Failure
Have you tried change the pump?
RE: Hydraulic Oil Seal Failure
RE: Hydraulic Oil Seal Failure