when pump is maitaind throughly and installed perfectly
then why pump vibrates on above standard vibration level?
Answers were Sorted based on User's Feedback
Answer / mohan tayade
Cavitation
Cavitation also can cause pump vibration. It occurs when the
system's available net-positive suction head (NPSHa) is less
than the pump's requirement (NPSHr). Indications of a
cavitating pump can include noise, fluctuating flow rates, a
decrease in discharge pressure, and vibration.
Cavitation-induced vibration is caused by imploding vapor
bubbles that introduce shock waves in a pump, shortening the
life cycle of all of the pump's mechanical components. The
components that commonly fail prematurely are impellers,
wear rings, and casings. If cavitation is present, NPSHa
should be increased above NPSHr by making changes in the
system design or operation to reduce or eliminate
cavitation. Cavitation does not always produce pump
vibration, and the induced vibration often is random and
unmeasurable.
| Is This Answer Correct ? | 12 Yes | 0 No |
Answer / umesh parmar
Please check operating conditions,It shall be as per
Manufacturer's catalouge.
| Is This Answer Correct ? | 1 Yes | 1 No |
My rotary kiln die 2mtrs x 36 mtrs long bauxite calcination .PL suggest ld fan cap.and pressure.
difference between 1st angle and 3rd angle projection
what roal of balancing disk in boiler high preesure feed pump.
Is OHNS steel is equivalent to O1 tool steel? Suppliers give OHNS material for AISI O1 STEEL telling that both are equivalent materials. Is this correct?
what is the pressure and how to calculate it?
List two effects of manganese in plain carbon steels?
give me an example of time when u something u tried to accomplish and failed.
I am a mechanical student.And have cleared the written for NTPC. Please suggest what and how to prepare for the interview.i have got only 2-3 weeks in hand.
what are the causes of small two-stroke engine wear?
RRB JE GR-II OLD QESTION PAPER WITH ANSER
type of bearing used in conveyor pulley
What is wet bulb and dry bulp temp. in air conditioner, why we use it.
4 Answers AG Technologies, College School Exams Tests,
Civil Engineering (5086)
Mechanical Engineering (4453)
Electrical Engineering (16638)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)