Which seal is best for screw pump Sealing

[Shaibaj Sayyad 0]

Oil seal or mechanical seal

[mmowafi77 0]

 

In the case of a triple screw pump, shaft seals are only needed on the driving rotor. The other rotors, including their bearings, are encased inside the pumping chamber and do not protrude out. In the case of a two screw pump or a four screw pump, both rotors generally protrude through the pump case, into a gearcase where the timing gears are housed. For this reason, four shaft seals are needed in a screw pump with two rotors.

[Muhammad Asif Rasul 0]

Mechanical Seal

[Rj Faizi 0]

Mechanical seal better then oil seal..

[David Betts 0]

A mechanical seal is better but requires skilled installation.

[Vladimir Gutierrez 0]

All of our screw pumps only use mechanical seals

[kishoreboyapati 0]

mechanical seal

[G B Reid MIMechE, SIMarEST 75]

Okay...I might be misinterpreting this....but a Mechanical one DEFINITELY rather than relying on  "wishful thinking"...

Ahh...did you mean a 'rotary' or 'static'...?  in which case a rotary! That said, it MUST be selected appropriately (there's loads of variations) and installed both properly and carefully!