Mechanical Seal Hydro test vs Pneumatic Test Vs complete pump Hydro Test
Mechanical Seal Hydro test vs Pneumatic Test Vs complete pump Hydro Test
(OP)
Hi,
Would Seal hydro test guaranteed and recommended before
The seal is installed in the pump ?
Would the pneumatic Air leak test on the gland is sufficient to guarantee the seal is free from any leak.
Would hydro test pump at 1.5 design pressurre of the casing is rrcommended. Some advise we should hydro test the cimplete pump eith seal at iperating pressure or at 1.5 of operating but not at 1.5 maximum allowable pump pressure.
Would Seal hydro test guaranteed and recommended before
The seal is installed in the pump ?
Would the pneumatic Air leak test on the gland is sufficient to guarantee the seal is free from any leak.
Would hydro test pump at 1.5 design pressurre of the casing is rrcommended. Some advise we should hydro test the cimplete pump eith seal at iperating pressure or at 1.5 of operating but not at 1.5 maximum allowable pump pressure.





RE: Mechanical Seal Hydro test vs Pneumatic Test Vs complete pump Hydro Test
RE: Mechanical Seal Hydro test vs Pneumatic Test Vs complete pump Hydro Test
Let me rewrite .
I am concerned with a mechanical seal hydrostatic test, seal is going to be installed in internal gear pump ( Plan 11 and 62) having glands, quench and flush without instrument.
1. Is it recommended to do Seal hydrostatic test before installing in the pump ?
2 Is it true that seal hydrostatic test could only be done with the seal installed in the pump ?
3 Would the pneumatic Air leak test on the gland is sufficient to guarantee the seal is free from any leak ?
4 Would hydrostatic test complete pump at 1.5 times pump maximum allowable pressure is recommended ?.Some seal vendor mentioned that we should hydrostatic test the complete pump with seal installed at operating pressure or at 1.5 of operating but not at 1.5 maximum allowable pump pressure.
RE: Mechanical Seal Hydro test vs Pneumatic Test Vs complete pump Hydro Test
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RE: Mechanical Seal Hydro test vs Pneumatic Test Vs complete pump Hydro Test
RE: Mechanical Seal Hydro test vs Pneumatic Test Vs complete pump Hydro Test
Make sure the seal can handle 1.5 times max pressure first.
Sounds like seal is fitted in pump and you want to test the seal. Yes you can using both mediums.
RE: Mechanical Seal Hydro test vs Pneumatic Test Vs complete pump Hydro Test
Keep in mind that any API cartridge seal should already be pressure tested by the vendor. If you want to perform a second integrity check once the seal is installed in the pump, you can use either medium but you shouldn't need a significant amount of pressure to determine if there are any concerns with the seal intergrity.
RE: Mechanical Seal Hydro test vs Pneumatic Test Vs complete pump Hydro Test
I am concerned with unwillingness
Of seal vendor to do hydro test on the seal, due to reasone that they need a pump to do hydro test it. How could seal vendor could hydro test the seal
Without pump ?
Howevet air leak test is done on the gland of the seal by seal vendor
How could the integrity be verified in the case when we going to exaggerate the hydro test on the pump with seal installed to value of maximum allowable pressure 1.5 times.
RE: Mechanical Seal Hydro test vs Pneumatic Test Vs complete pump Hydro Test
RE: Mechanical Seal Hydro test vs Pneumatic Test Vs complete pump Hydro Test
You mentioned " Keep in mind that any API cartridge seal should already be pressure tested by the vendor" .
Do you mean air leak test or hydrostatic test, is pneumatic test is another term of air leak test too ? .
RE: Mechanical Seal Hydro test vs Pneumatic Test Vs complete pump Hydro Test