Answer / soman nair

The wear rings have three purposes to serve, 1. To decrease
the discharge fluid leak to the suction area and maintain
the pumps efficiency. 2. It acts as a bearing in a
multistage centrifugal pumping system. 3. It is economical
to replace the wear rings rather than replacing the
expensive impellers in case of any mechanical damage such
as, wear and tear due to abrassion or any other reasons.

Answer / bibhudatta behera

Wear rings can be defined as a device used to seal the
pressure leakage of the liquid between the inlet of the
impeller and the pump casing. Wear rings are typically
found on pumps with closed impellers. A similar device that
serves the same function called a wear plate can be found
on some pumps with a semi-open impeller.
The typical reason for using a wear ring is to decrease the
amount of leakage loss around the impeller. Due to more
work available to push the pumped liquid out the discharge
there is a slight improvement in pump efficiency.

Answer / mahesh kumar pachauri

Wear ring is act as a boundary in a centrifugal pumps
between low pressure (Vacuum) area and high pressure area.
Its also supports impeller's load after bearing failure or
damage and save other parts of pumps

Answer / jerry

wearing ring is found to the impeller and the pump casing to allow the pumps running with a small clearance between the impeller and the pump casing to minimize the internal leakage of fluid. and to avoid the actual damage of the impeller and pump casing.

Answer / vasanth

Wear rings is to segregate the suction and discharge side of the pump.they save the impeller and casing from wearings so they called wear rings.

dear sir, pls provide me a previous paper for hpcl engineers trainee exam for mechanical engg. this is a request pls do the needful as early as possible.

0 Answers   HPCL,

Disposal of radioactive waste materials and spent fuel is a major and important technology. How the waste radioactive material is disposed off ?

0 Answers  

When repacking a valve the rings of packing should be oriented so that the packing ends are installed ____________.

0 Answers  

What is the purpose of engine preheating?

1 Answers   RRB,

how to calculate transformer conservator size

0 Answers  

what is mean by TMT STEEL

1 Answers   TATA,

How the F.W.C. system of diesel engine circulate?

0 Answers   RRB,

What is a diaphragm?

0 Answers  

mechanical efficiency is high in petrol engines compared to diesel engines but why diesel engines are preferred in heavy duty vehicles

6 Answers   Valeo Lighting Systems India Private Limited,

What are the causes of troubles in boiler during operations?

0 Answers   ABC Inc, RRB, Siemens,

how determine the capacity of refrigeration system? how we use condenser coils, compressor, capillarity,compressor

1 Answers   AirTech,

Examples of good conductors of electricity.

1 Answers   RRB,