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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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Q & A – What is the best option for pumping solids?

Q & A – What is the best option for pumping solids?

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

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Q & A – What is the difference between NPSHa and NPSHr ?

Q & A – What is the difference between NPSHa and NPSHr ?

What is the difference between NPSHa and NPSHr ? Nett Positive Suction Head AVAILABLE (NPSHa) is the absolute pressure at the pump inlet and is calculated by the system designer. Nett Positive Suction Head REQUIRED (NPSHr) is the minimum pressure required by the pump...

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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 are built with a design life of 25 years but how long should a chemical pump last can vary considerably depending upon the application it has been built for. The 3 most important factors to consider are:...

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How does a magnetic drive pump work?

How does a magnetic drive pump 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 is driven by two rotating magnets rather than being...

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We are recruiting for a new Pump design engineer.

We are recruiting for a new Pump design engineer.

We are recruiting for a Pump Design Engineer   About Crest Did you know that pumps account for 10% of the world's electricity consumption and that up to 90% of them are inefficient? If every single one of these pumps was replaced and installed effectively, the...

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Q & A – What is your zero pressure guarantee?

Q & A – What is your zero pressure guarantee?

Q - What is your zero pressure guarantee?   A - It’s quite simple really, every pump supplied by Crest comes with our ”Zero-Pressure” Guarantee – should, for any reason, you have an issue with a Crest Pump, we guarantee to take all necessary action until the pump...

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Q & A – What is Cavitation?

Q & A – What is Cavitation?

Q - What is Cavitation?   A - If your pump is operating and it sounds like a "bag of spanners"* or "marbles rattling around"* then it is highly likely your pump is cavitating. Pump cavitation is a result of the pump not receiving enough flow of liquid through the...

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Q & A – What Are Life Cycle Costs?

Q & A – What Are Life Cycle Costs?

Q - What are life cycle costs?   A - Life Cycle Cost or LCC analysis is a management tool that can help companies minimize waste and maximize energy efficiency for many applications, not just pumping systems. By understanding the life cycle costs of a pump, we...

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Q & A – What is a centrifugal pump & how do they work?

Q & A – What is a centrifugal pump & how do they work?

Q - What is a centrifugal pump and how does it work?   A - Centrifugal pumps have been relied upon as an industry workhorse since the 17th century and are the most commonly used type of pump for the transfer of liquids. A centrifugal pump operates through a...

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Q & A – How much does a chemical pump cost?

Q & A – How much does a chemical pump cost?

Q -     How much does a centrifugal chemical resistant pump cost?   A-      Unfortunately, the answer is as clear as how long a piece of string is. There are many varying factors including (but not limited to) the size of pump required for the flowrate and...

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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 – Win a Christmas Hamper

Crest Pumps – Win a Christmas Hamper

Happy 1st week of December! To celebrate the festive period Crest are giving you the chance to win a festive hamper to enjoy over Christmas. If you place an order with us between 2nd - 16th December you will be put into a draw for a chance to win a big hamper. Winner...

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Crest Pumps New Heavy-Duty Mag Drive Range

Crest Pumps New Heavy-Duty Mag Drive Range

Crest is pleased to introduce the new AME range of heavy-duty magnetic drive process pumps. Constructed from a high purity PFA lining makes these pumps suitable for the most corrosive of applications even up to temperatures of 150degC. But two new design features are...

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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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ChemUK 2019 – Crest Pumps will be exhibiting Stand E15

ChemUK 2019 – Crest Pumps will be exhibiting Stand E15

We are pleased to announce that we shall be exhibiting at the UK’s new chemical industry exhibition, ChemUK 2019 With some 2,500+ specialist businesses contributing to the UK’s chemical industry – embracing raw materials, chemicals, intermediates & consumables,...

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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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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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My Pump Can’t Run Dry!

My Pump Can’t Run Dry!

With over 40 years of experience in the pump industry we have seen a few instances where a pump has seemingly run dry but the customer has insisted this could never have happened. When a mechanically sealed or magnetic drive pump runs dry (i.e. with no liquid in the...

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How does a Magnetic Drive Pump Work?

How does a Magnetic Drive Pump Work?

Magnetic drive pumps have been available for many years and are ideal for use with clean liquids, their obvious advantage in chemical applications is that they eliminate the need for potentially expensive mechanical seals. Magnetic drive refers to the coupling between...

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What is a centrifugal pump and how do they work?

What is a centrifugal pump and how do they work?

What is a centrifugal pump and how do they work? A centrifugal pump is essentially quite a simple machine. An impeller rotates at speed within a casing so creating a centrifugal force on the liquid which is discharged through a port on the periphery of the casing, it...

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Plastic Pumps and their use in Industry

Plastic Pumps and their use in Industry

Plastic Pumps Use in Industry - Thermoset plastics have been used in making pumps and pipelines for well over 50 years. Traditionally when faced with selecting pumps for handling corrosive liquids engineers were faced with using pumps made from high nickel content...

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Introducing the New AMX86 Pump

Introducing the New AMX86 Pump

We would like to let you know about the   NEW AMX86    size of Mag Drive pump. This new AMX has the following features: 85mm inlet 65mm outlet 5.5kw and 7.5kW Larger flowrates < 1250 L/min (75m3/hr) and head <33m Same innovative AMX design of running dry and...

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Crest Pumps prepare for GDPR

Crest Pumps prepare for GDPR

You may have recently read and be already aware that there is due to be a few changes regarding EU data protection regulations – namely GDPR (General Data Protection Regulations). This affects the way companies use customer data to market to them.  We send some of our...

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Crest Pumps Celebrates 45 years with Exciting News!

Crest Pumps Celebrates 45 years with Exciting News!

It’s been 45 years since Les Dashwood founded the Crest Pumps Group!  His son Tony is now moving to semi-retirement, whilst Tony’s son, the third generation of the Dashwood family, James is taking over the helm. James has a new strategic plan for Crest Pumps, planning...

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Be environmentally-friendly and save money? Of course!

Be environmentally-friendly and save money? Of course!

If we told you that we could save you money while reducing your carbon footprint at the same time, you might think it was fake news, to coin a current phrase, but you would be wrong. The AVF range of seal-less, magnetic drive pumps do just that. The AVF features a...

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