How to Select Piston Pumps and Plunger Pumps   Image Credit: Binks Haskel International, Inc.Clark Solutions   Piston pumps and plunger pumps are reciprocating positive displacement pumps that use a plunger or piston to move media through a cylindrical chamber. They are also called well service pumps, high pressure pumps, or high viscosity pumps because they can deliver high pump pressures and are capable of handling both viscous and...
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Q & A on Piston Pumps and Plunger Pumps

We asked our users for their input on Piston Pumps and Plunger Pumps. Here are the results of 130 users familiar with Piston Pumps and Plunger Pumps.

Who Took Our Poll? | Design Trends | Applications and Use | Features | Buying Advice |

Who Took Our Poll?Top

Design TrendsTop

Q:
What new technologies are influencing piston pump and plunger pump design?
16 answers
Answers:
New technologies pumps seem to apply high rpm and high pressure which is okay in some applications. Not much in the low rpm designs for other applications.
~Peter S, Engineer, Wootton, Australia
Increase the pressure, Stabilize the water flow rate, Reduce the working temperature.
~Giano Yip, Manufacturer, Hong Kong, Chian
Advances in membrane and sealant materials for gaskets (elastomers)
~Engineering, Design, Miami, FL
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Q:
From your perspective, which companies are creating the most innovative piston pumps and plunger pumps?
18 answers
Answers:
Vickers, Flow serve, Weir pumps, Worthington, Sulzer. So many good manufactures came across my carrier but I can't remember all.
~Purushothamdas C, Maintenance Engineer, Trichur, India
There are no innovations the pump technologies have been around for a long time.
~Tom W, Marketing/Sales, MPLS, MN
For my applications Conergy 24v solar force piston pumps.
~Peter S, Engineer, Wootton, Australia
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Applications and UseTop

Q:
What are some of the applications you have used piston pumps and plunger pumps for?
38 answers
Answers:
Mold making machines (foundry), Core making machines(foundry), High pressure hydraulic system for integrated sand molding line. Hydraulic systems for machining engine parts ( Engine plant), coolant supply systems (Engine plant)
~Manufacturing, WINDSOR, Canada
Process (Chemical, petro chemical, food & beverage, non woven fabrics etc.), industrial cleaning, water jet machining, deburring, parts washing, decoring, descaling, surface preparation.
~Marketing/Sales, Oelde, Germany
Steam cleaner, Steam Mop, Steam Iron/station/press, Portable Air-conditioner, Coffee makers, Steam Oven/micro oven, Steam generator, Tea pot, Hot water dispenser, etc..
~Giano Yip, Manufacturer, Hong Kong, Chian
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Q:
Please share with us any “non-standard” applications that piston pumps and plunger pumps have been used for.
12 answers
Answers:
Many engineers built their own circuit/design for their end products, thus, they want manufacturers to be able to build based on their specifications. So, not so many company use "Standard" pumps.
~Giano Yip, Manufacturer, Hong Kong, Chian
I used them to cut up bombs and war heads when the Soviet Union broke up after the cold war.
~Dana N, Business Owner, Minneapolis, MN
Jet rodding lines, purging pipes, volume wash downs, pressurize welds on pipe.
~Steve B, General Management, Tampa, FL
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Q:
Do you know of any disastrous mistakes that occurred due to the incorrect usage of piston pumps and plunger pumps?
11 answers
Answers:
In this occasion there was damage to a belt on a piston pump that was trying to push water above its maximum head and resulted in burning the belts due to not having a limit pressure switch and wrong pump for the application. Other occasions no filter on the suction side resulted in piston failure due to abrasives being sucked up.
~Peter S, Engineer, Wootton, Australia
1. Offer wrong information regarding what flow media that the pump had to be used. 2. No room for cooling the pump, the temperature in the house kept raising and caused the pump to over heat. 3. Thermostat failed, the pump burned.
~Giano Yip, Manufacturer, Hong Kong, Chian
1) Pump running without proper filters and punctured filters. 2) Dry run and cavitation. 3) Wrong material selection for the medium to be pumped.
~Purushothamdas C, Maintenance Engineer, Trichur, India
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FeaturesTop

Q:
What would your design or feature "wish list" be for this product?
13 answers
Answers:
High temperature capabilities for boiler feed, as they can be very energy efficient. Should be capable of handling condensate mixed water. Economy vs size of pump balance needs to be achieved to counter disadvantages of centrifugal pumps.
~Narinder K, Marketing/Sales, Mumbai, India
1) Trouble free functioning with minimum or no maintenance. 2) Efficient to carryout prescribed product line features. 3) Materials and function to suit application.
~Purushothamdas C, Maintenance Engineer, Trichur, India
A build in variable speed, torque and stroke length controller on an electric piston pump.
~Engineering, Design, Miami, FL
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Buying AdviceTop

Q:
Do you have any advice for people relative to buying or using piston pumps and plunger pumps?
11 answers
Answers:
The people who want to buy are using piston pumps for their product. The most important is to give a detail specification and requirements to their supplier. Also, they need to explain what they want and how to operate their product. After getting samples from their supplier, they need to test it individually and also fix the sample in the product to do testing separately. Base on the result, normally, the specification are requirement to adjust and do sample again. With number of adjustment to the specification and number of testing. They may fix the specification and the supplier is able to do trial production. After the trial production from both parties, they may success to built such pump that they need.
~Giano Yip, Manufacturer, Hong Kong, Chian
1) Choose the pump according to the requirement and applications. 2) Find the best manufactures who comply with your requirements 3) Choose economically viable and easily maintainable units.
~Purushothamdas C, Maintenance Engineer, Trichur, India
Please weigh operating costs vs capital costs when deciding against piston/ plunger pumps. Lubricant used must have friction busters in them.
~Narinder K, Marketing/Sales, Mumbai, India
The pump is very efficient but poor maintenance will cost heavily.
~Sundaram Mahalingam, Technical Support, Chennai, India
Make sure their hrsp is rated for plunger size at lower RPMs
~Steve B, General Management, Tampa, FL
We are user (Technical administration) on behalf of end user
~Budiono Sritunggal, Technical Administration, Balikpapan, Indonesia
To apply the correct pump for the right application.
~Peter S, Engineer, Wootton, Australia
Buy quality, not the cheapest thing out there.
~Eric Wanstrom, Design Engineer, Dallas, GA
Know your NPSHA and fluid solids.
~Dana N, Business Owner, Minneapolis, MN
Buy on quality not price
~Company owner, The Leap, Australia
Buy Hydra-Cell
~Tom W, Marketing/Sales, MPLS, MN

Q:
Is there any advice you want to share with users to help them avoid common errors in selection or usage of piston pumps and plunger pumps?
11 answers
Answers:
Many people complain to the supplier with a simple reason: the pressure dropped, the flow rate not stable, the pump not work,etc. They do not try to analyze the root cause even they bought the pumps with over 100K or 1M. Any changes in engineers or other materials may cause certain key technical data changed. The pump is not working individually, it works with heater, PCB controller, water filter, etc. We've had many experiences that the pump, a very mature pump, was complained about by our long-term customer. But, what caused the pump to not work and high reject rate? Finally, we found their engineer changed the design/material/supplier with certain reason. Testing procedure are also very important. Both parties should discuss this topic in advance for against getting different testing result and requirements.
~Giano Yip, Manufacturer, Hong Kong, Chian
- 1st, the air power supply line shall be installed oiled - 2nd, always apply of O-Rings with "Viton" type product - 3rd, Use O-ring teflon i/o rubber/nitrile
~Budiono Sritunggal, Technical Administration, Balikpapan, Indonesia
Please design suction side luxuriously for NPSH and evaluate suction and temperature conditions closely so as to arrive at correct speed and size of pump
~Narinder K, Marketing/Sales, Mumbai, India
Understanding what volume and pressure needed and the type of liquid to be pumped for the purpose, so as to select the right pump.
~Peter S, Engineer, Wootton, Australia
Select the pump considering the Flow Rate, Maximum Pressure, Operating Power, and also the Medium used.
~VARA PRASAD, Engineer, KAKINADA, INDIA
Make sure to use quality water filters ,and packing and plungers .
~Steve B, General Management, Tampa, FL
1) Choose the pump which spares and services easily available.
~Purushothamdas C, Maintenance Engineer, Trichur, India
Know your operating requirements.
~Dana N, Business Owner, Minneapolis, MN
As mentioned earlier
~Sundaram Mahalingam, Technical Support, Chennai, India
Don't go too small.
~Eric Wanstrom, Design Engineer, Dallas, GA
Same as 8
~Tom W, Marketing/Sales, MPLS, MN


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