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Why eccentric reducers are used in suction lines and not concentric? where does it say that eccentric reducers in suctions lines are mandatoy and why?

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Question ajoutée par ANDREA MEDINA
Date de publication: 2016/08/22
Ramazan oral
par Ramazan oral , SALES MANAGER , EG PRES İN TURKEY

it was needed for cavitaıons  thats why we are usıng  for suctıons sıde eccentric reducer . Because due to cavitatıons problem.

 

siamak bahmani
par siamak bahmani , startup area manager , Oil Industries’ Commissioning and Operation Company (OICO)

for  Preventing  of any cavitation, normally we are using Eccentric reducer to remove entrap air in the suction line  

samson oriedo
par samson oriedo , ENGINEER - MECHANICAL , KENYA PETROLEUM REFINERY LTD

to check on pump cavitation

Muhammad Mairaj Ahmed
par Muhammad Mairaj Ahmed , Sr. Rotating Equipment Engineer , Rangeland Engineering

Eccentric reducers are used at the suction side of pumps to ensure that air does not accumulate in the pipe. In a concentric reducer, air gradually accumulates and form a large bubble that could eventually cause the pump to stall or cause cavitation when drawn into the pump.

Suction piping design recommendations are listed in ANSI/HI 9.8 shall be be referred while designing pump suction piping. for e.g;  straight pipe run, fluid velocity limit, etc.

 

Muhammad Nadeem
par Muhammad Nadeem , Mechanical Technician , Hub power Station Ltd Pakistan

eccentric reducer are used at pump suction .

to avid the pump cavtation. 

 

Ahmad  Yousef
par Ahmad Yousef , SALES ENGINEER - Water pumps , Al Nakheel

Eccentric reducers in suctions lines are mandatoy when the load on pump is relatively high. It is used to prevent the air bubble from forming because it may break the impeller.

Srihari Guttula
par Srihari Guttula , Technical Lead- Mechanical , Abj Engineering And Contracting

Cavitation & reduce the pressure drop of liquid

 

Martin Thomas vaz
par Martin Thomas vaz , Senior Mechanical Engineer- Supervision consultant , ALKASHAF INTERNATIONAL-DESIGN AND ENGINEERING CONSULTANCY

Eccentric reducers are used to avoid cavitation.

Muhammad Bilal Aslam
par Muhammad Bilal Aslam , Mechanical Maintenance Technician , FFBL Karachi

1-due to cavitation problems 

Muhammad Arsalan Sheeraz
par Muhammad Arsalan Sheeraz , Mechanical Supervisor , Shiraz Chemical Industries

in eccentric reduser liquid flow is direct into impeller eye as compare to concentric, and cavitations problems comes if concentric reducer use at section side.

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