Lab Manual | Working Principle of Reciprocating Pump

Reciprocating Pump

PRINCIPLE: Reciprocating pump operates on the principle of pushing of liquid by a piston that executes a reciprocating motion in a closed fitting cylinder.

DIAGRAM:

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CONTRUCTION DETAILS OF A RECIPROCATIN PUMP:

Components of reciprocating pumps:-

a) Piston or plunger: – a piston or plunger that reciprocates in a closely fitted cylinder.

b) Crank and Connecting rod: – crank and connecting rod mechanism operated by a power source. Power source gives rotary motion to crank. With the help of connecting rod we translate reciprocating motion to piston in the cylinder.

c) Suction pipe: – one end of suction pipe remains dip in the liquid and other end attached to the inlet of the cylinder.

d) Delivery pipe: – one end of delivery pipe attached with delivery part and other end at discharge point.

e) Suction and Delivery value: – suction and delivery values are provided at the suction end and delivery end respectively. These values are non-return values.

WORKING OF RECIPROCATING PUMP

Operation of reciprocating motion is done by the power source (i.e. electric motor or i.c engine, etc). Power source gives rotary motion to crank; with the help of connecting rod we translate reciprocating motion to piston in the cylinder (i.e. intermediate link between connecting rod and piston). When crank moves from inner dead centre to outer dead centre vacuum will create in the cylinder. When piston moves outer dead centre to inner dead centre and piston force the water at outlet or delivery value.

EXPRESSION FOR DISCHARGE OF THE PUMP:-

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Where: –

Q: – discharge in m3/sec

A: – cross-section of piston or cylinder in m2

L: – length of stroke in meter

N: – speed of crank in r.p.m

18 Responses to “Lab Manual | Working Principle of Reciprocating Pump”

  1. RAMON PEREZ

    i need to know if the piston air compressor pump would could run clockwise

  2. bhargav

    whoever did it…… ist of all i’d like to say thanks
    a great effort

  3. admin

    Thanks

  4. anubha

    thnkx a ton…. u saved my day sumhow!!! 😀

  5. RAVI TYAGI

    thanx for such a useful info .

  6. Dipu

    thank you

  7. Rahul Chopra

    thats so useful. So many thank yous for this

  8. admin

    Thanks

  9. Zaheer ALi

    Thanx in tons buddy, who so did it!!!!

  10. admin

    Thanks for the appreciation.

  11. MURTY B S

    Excellent details.
    Many many thanks.
    Can we get a DIY Kit ? If so, contact details pl.

  12. shubham

    i just copied this article in my exam fluid mechanics lab via my fon. thanx to the writer of this.

  13. admin

    Dear Shubham..

    This is not fair.. This is the site meant for studying.. Not for Cheating.

    Anyway.. Thanks for liking our site.

  14. Anand Shinde

    Very useful information,please provide this kind of information in future as well.

  15. unais nrg

    now i am ready for exam…♥♥

  16. shipar

    nice post

  17. radhakrushna swain

    Thank you I know from reciprocating pump.

  18. Adesh kumar

    Nice

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