Troubleshooting, Checklist, And Solution Of Positive Displacement Pump.

Troubleshooting, Checklist, And Solution Of Positive Displacement Pump.


Like other Positive Displacement Pump or reciprocating machines, a reciprocating pump requires proper attention in inspection checklist, monitoring, troubleshooting, solution, and maintenance for smooth operation. Troubleshooters should have to inspect as well as monitor the whole pumps sincerely. Periodical inspection Troubleshooting, Checklist, And Solution Of Reciprocating Pump may increase the lifetime. Periodical Troubleshooting, Checklist, And Solution Of Reciprocating Pump may decrease intercepted production and also increase productivity.

Many problems may crop up during startup, running times, so one needs to know about a reciprocating pump & Troubleshooting. Possible reciprocating pump and troubleshooting and their probable remedies are disguised below:

01. Low Capacity:

Possible Causes:

  • Speed too low.

  • Liquid end valves leaking.

  • The piston ring or liner is worn.

  • Undersized Plungers.

Remedy Or Action:

  • Increase speed.

  • Re-lap or replace the valve.

  • Replace worn parts.

  • Install correct size.

02. Excessive Wear:

Possible Causes:

  • Misalignment.

  • Bent position/ rod/ plunger.

  • Worn bore.

Remedy Or Action:

  • Check alignment.

  • Check for straightness.

  • Replace liner or Re-bore.

03. Overheating:

Possible Causes:

  • Stuffing box overheating.

  • Bearing overheating.

  • Fluid too viscous.

Remedy Or Action:

  • Check that packing is not too tightened or badly fitted.

  • Check packing lubricant.

  • Review the specification of the Pump.

  • Check oil level or lubricant condition.

  • Correct the bearing for misalignment or excessive tightness.

  • Check fitting and condition of oil seals.

  • Reduce fluid viscosity.

04. Pumps Requires Excessive Power:

Possible Causes:

  • Pumps speed or RPM too high.

  • Misalignment of pumps.

  • Internal friction.

  • Tight bearings.

  • Lack of lubrication.

Remedy Or Action:

  • Correct against the recommendation speed.

  • Check the alignment of pump and Driver, also Foundations.

  • Repair the rubbing contact, clogging, etc.

  • Check bearing and packings.

  • Check quantity and quality of lubricant.

05. Vibration And Noise.

Possible Causes:

  • Cavitation.

  • Misalignment.

  • Bent shaft,

  • Faulty Bearings.

  • Excessive fluid viscosity.

  • Improper pump assembly.

Remedy Or Action:

  • Check pump operating conditions.

  • Correct alignment with the driver.

  • Check and replace if necessary.

  • Correct or review product suitability.

  • Check and rectify.

06. Short Packing Life:

Possible Causes:

  • Incorrect packing

  • Misalignment of plunger or piston rod with stuffing box.

  • Worn plunger or piston rod.

  • Worn stuffing box bore.

  • The packing gland is too tight.

  • Too much packing in the box.

  • Abrasive in pumpage.

  • Inadequate packing lubricant.

Remedy Or Action:

  • Install correct packing.

  • Improve alignment.

  • Replace worn parts.

  • Repair or replace the stuffing box.

  • Lossen gland packing.

  • Reduce the number of rings.

  • Strains or filters in-late.

  • Improve lubrication.

07. No Discharge:

Possible Causes:

  • Cavitation.

  • Speed too low.

  • Not Primed.

  • Excessive suction lift.

  • Air Leaks.

Remedy Or Action:

  • Check Priming.

  • Increase speed.

  • Reduce suction lift.

  • Check system and eliminate air leaks by sealing etc.

Please take a look at the following links:

What Is Strainer? Types of the strainer.

What Is Lubricant And Properties Of Lubricant?

The Steam Turbine, And How It Works?

What Is Rupture Disc, How does It Work?

What Is Fire Point, Smoke Point, Freezing Point, Dew Point, Flash Point, Pour Point, Boiling Point, Bubble Point?

Different Type Of Boiler. Boiler Operation And Operation Coefficient.

Pump Cavitation And Prevention.

Pumps & How It Works?

Centrifugal Pump & Troubleshooting.

Let’s We Know About What Is Seal And Types Of Seals.

Personal Protective Equipment (PPE). Types Of PPE.

Safety Measures Associated With Confined Space.

Explosion Hazard And How To Prevent It?

How To Prevent Fire Hazards In The Workplace?

Accident And Its Prevention In Work Place.

Occupational Hazard And Safety Requirements In Industries.

What Is Gas Hydrate? How To Prevent It?

What Is Filter Or Separator? Types Of Filters.

Let’s Know About Plumbing Fittings Or Pipe Fittings.

What is Critical Point, Surge Point, Yield Point, Aniline Point, Triple Point, Triple Point Of Water, Melting Point, Auto Ignition Point?