explain the positive displacement pump?

Answer Posted / deenar satam

positive displacement pumps can be of rotary as well as
piston type. the pps which includes piston can be single
double or multistage .
in rotary type p/ps there are vane p/p,internal gear
p/p,external gear p/p,lobe p/p etc.
in positive displacement pps priming is not required.
they can run dry for some period of time.
can handle multiple types of fluids.
can deliver more head than centrifugal p/p. but discharge
rate is less as compared to centrifugal p/p

Is This Answer Correct ?    15 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Find the area of the disc at 62 C whose diameter is 3?

696


Name different types of marine diesel engines?

690


Define crankshaft explosion?

760


How large marine generator supply power to the msb?

841


Which country level is below low sea level?

675






What is the principal of axial pump?

682


In ship cranes, there is a provision of providing a conveyor for the cable there is no provision of slip ring. Then explain how it is possible ?

942


Name different types of ships?

657


How ships are flooding?

588


Which place causes iron losses?

683


hi, i have completed my b.e. marine could u pls suggest me some job site for marine engineering?

2033


What is the advantage and disadvantages have the small amount of super heat for the refrigerant vapors entering the compressors suctions?

834


Show the sinosoidial effect built in a generator with the help of a diagram. Show all voltages, and currents.

673


What are the different types of ships?

601


Why self closing sounding pipes are used onboard?

607