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Transfer Pump… What is it?

A transfer pump is a general term for a pump that’s sole purpose is to move liquid from one place to another. Such as from a bulk storage tank to a day storage tank. They can take many forms depending upon the liquid to be transferred and the discharge pressure...

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Wishing Tony a very happy retirement!

Today marks Tony Dashwood's official retirement from Crest Pumps after 46 years service in our family business. We want to thank him for his tireless dedication to our business and the pump industry in supplying the highest quality and service. He has set a very high...

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Selecting Pumps for Fume Scrubber Applications

Selecting Pumps for Fume Scrubber Applications

Wet fume scrubbers are in use in a number of industries. As well as on board to remove pollutants from gas streams, but they provide some challenges to selecting suitable pumps. Depending on the scrubber liquor used it can go from acid to alkaline or vice versa. And,...

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Chemical Pumps – Find your solution now!

Find your chemical pump solution now!Pump failure creates the wrong kind of pressure! Here at Crest Pumps you can trust us for reliable and corrosion resistant chemical pumps. Plus lifetime support for every pump! What does lifetime support mean? Well, no matter how...

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Introducing the NEW EOV Pump Range!

Introducing the NEW EOV Pump Range!

INTRODUCING THE NEW EOV PUMP RANGE!   Based on our very popular ECC Range. The EOV pump range based on a radically redesigned volute casing and impeller featuring an improved vane design that improve efficiencies by up to 35%, not only are flow rates and...

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Pump Performance Curve & System Curve

Pump Performance Curve & System Curve

We recently wrote an article on how to read the information presented on a standard centrifugal pump performance curve and to develop this further we need to examine how this relates to the system curve. So, what is the system curve? This plots the head in terms of...

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Utilising Inverters with Industrial Pumps

Utilising Inverters with Industrial Pumps

Utilising Inverters with Industrial Pumps Utilising inverters with industrial pumps. In the commercial building services sector, inverters are widely accepted however it would seem the industrial sector still have reservations when it comes to using Inverters to...

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How to read a Centrifugal Pump Performance Curve

How to read a Centrifugal Pump Performance Curve

This may seem a basic topic but if new to selecting centrifugal pumps it is an essential skill to know. Pump manufacturers will supply a performance curve detailing the following information: flow, head, power absorbed, efficiency and NPSH required. On all curves some...

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Common Terms Used In The Pump Industry

Common Terms Used In The Pump Industry

Common terms used in the pump industry.  Absolute pressure: The absolute pressure is the sum of the gauge or dial pressure and the atmospheric pressure (14.7psi). If your pump gauge reads 150 psi, then the absolute pressure will be 164.7 psi. Absorbed Power: This is...

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Pump Affinity Laws

Pump Affinity Laws

What are the Affinity Laws? The pump affinity laws are a set of formulas that help predict flow, head, power absorbed at different shaft speeds. If you know the shape of a pump performance curve at a certain speed or with a certain impeller diameter, you can use the...

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A guide to Centrifugal Impellers

A guide to Centrifugal Impellers

A guide to Centrifugal Impellers Centrifugal pump impellers come in many shapes and sizes, each having their own uses and advantages. There are two aspects of the impeller, regardless of the type, that are worth remembering: Impeller Diameter: The diameter of a...

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Commonly Pumped Chemicals

Commonly Pumped Chemicals

Commonly Pumped Chemicals During a recent survey of all enquiries we received for chemical applications we found that around 50% were for a very small number of chemicals, so we thought it would be useful to run through these chemicals and list the suitable pump...

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Mechanical Seal Selection

Mechanical Seal Selection

Mechanical seal selection - A technical briefing Crest offers many types of pumps with a variety of arrangements including magnetic drive, seal less and mechanical seals. There are several types of mechanical seal and whilst Crest can fit specific seal if required, it...

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Understanding Viscosity – Technical Briefing

Understanding Viscosity – Technical Briefing

Understanding Viscosity When people talk about understanding viscosity, they are talking about one of two things: dynamic (also known as absolute) viscosity or kinematic viscosity. How to measure Viscosity One way is to measure a fluid’s resistance to flow when an...

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Head v Pressure – Technical Briefing

Head v Pressure – Technical Briefing

Head v Pressure A History Lesson Around 400 years BC the Greek Philosopher Aristotle proposed a theory that, if dropped from the same height, a 10 kg rock would fall twice as fast as a 5 kg rock or, indeed, 10 times faster than a 1 kg rock. Seems logical? Well, he had...

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Pumping solids? What is the best option.

Pumping solids? What is the best option.

What are the best options for pumping solids? Whilst pumping solids can create greater complications with pump reliability and longevity. Fortunately, there are many options available to you. And If specified correctly, the correct installation should work reliably...

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What is the difference between NPSHa and NPSHr ?

What is the difference between NPSHa and NPSHr ?

What is the difference between NPSHa and NPSHr ? Let's start with what NPSHa and NPSHr mean. NPSHa stands for Nett Positive Suction AVAILABLE and NPSHr stands for Nett Positive Suction Head REQUIRED. Now, what is the difference between NPSHa and NPSHr? Well, firstly...

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How long should a chemical pump last?

How long should a chemical pump last?

How long should a chemical pump last?   Crest Pumps built with a design life of 25 years. However, how long a chemical pump should last varies considerably dependant upon the application it has been built for. The 3 most important factors to consider are:...

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Magnetic drive pump. How does it work?

Magnetic drive pump. How does it work?

How does a magnetic drive pump work? Magnetically driven pumps are the industry standard when processing harsh and highly corrosive applications. So, how does a magnetic drive pump work? The centrifugal force driven by two rotating magnets rather than being directly...

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What is Cavitation in centrifugal pumps?

What is Cavitation in centrifugal pumps?

What is pump cavitation? Definition Cavitation occurs in centrifugal pumps when the Nett Positive Suction Head Available (NPSHa) is lower than the Nett Positive Suction Head Required (NPSHr) causing the formation and accumulation of bubbles around the impeller eye...

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Life Cycle Costs, What are they?

Life Cycle Costs, What are they?

What are life cycle costs? Life Cycle Cost or LCC analysis is a management tool that can help companies minimize waste and maximize energy efficiency. This can be for many applications, not just pumping systems. To analyse Lifecycle Costs we break down all the...

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What is a centrifugal pump & how do they work?

What is a centrifugal pump & how do they work?

What is a centrifugal pump and how does it work? Centrifugal pumps rely upon as an industry workhorse since the 17th century. These are the most commonly used type of pump for the transfer of liquids. A centrifugal pump operates through a rotating impeller within a...

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COVID-19 Update

COVID-19 Update

Firstly, and most importantly, I hope you are well and keep as healthy as possible through this whole unprecedented episode. As of 27th March, our office team are all working remotely from home and our manufacturing team are still working hard to build and despatch...

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The most important goal in our 47 year history?

The most important goal in our 47 year history?

With the terrible news of fires in Australia and flooding in Indonesia, the terrible impact of climate change is inescapable. As pumps are said to account for 10% of the world’s electricity consumption, our industry has a huge opportunity to help reduce the world’s...

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Crest Pumps New Heavy-Duty Mag Drive Process Pumps

Crest Pumps New Heavy-Duty Mag Drive Process Pumps

Crest Pumps New Heavy-Duty Mag Drive Process Pumps Crest is happy to introduce the new AME range of heavy-duty magnetic drive process pumps. Constructed from a high purity PFA lining. This makes them suitable for the most corrosive of applications even up to...

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Top 5 Tips to Increase a Pumps Life

Top 5 Tips to Increase a Pumps Life

Top 5 Tips to increase a pumps life, whilst reducing your running costs and increasing profit margins. Material Compatibility Using the correct pump materials of construction are essential if the pump is to have a long life. This is especially so when handling...

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Pump Export Services

Pump Export Services

At Crest Pumps, our aim is to make working with us as simple as possible and that is just as true when it comes to exporting. In our 45 year history we have exported across the globe as far as New Zealand and even the Antarctic! Approximately 30% of our business is...

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How to increase your efficiency with our chemical pumps

How to increase your efficiency with our chemical pumps

How to increase your pump efficiency with our UK built chemical pumps. When selecting larger pumps for capacities over 100m3/hr there are many factors to take into consideration to ensure that you have the most efficient option. With an anticipated life of several...

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The Flexible Design of Vertical Pumps

The Flexible Design of Vertical Pumps

Crest Pumps has the ability to supply specialist pumps at competitive prices on short lead times. This is particularly true of its range of vertical pumps which can be easily adapted to fit into customers’ installation constraints without compromising efficiency or...

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