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

2020-07-30T10:45:52+01:00 July 30th, 2020|

Q - What is the best option for pumping solids?   A - 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 effectively for many years. It depends upon the size, concentration [...]

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

2020-07-24T12:20:26+01:00 July 24th, 2020|

Q - What is the difference between NPSHa and NPSHr ?   A - 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 in order to operate successfully without [...]

Q & A – How long should a chemical pump last?

2020-07-15T09:43:22+01:00 July 15th, 2020|

Q - How long should a chemical pump last?   A - Crest Pumps are built with a design life of 25 years but the life of a pump can vary considerably depending upon the application it has been built for. The 3 most important factors to consider are:   Material compatibility of the pump [...]

Q & A – How does a magnetic drive pump work?

2020-07-06T17:18:45+01:00 July 6th, 2020|

Q - How does a magnetic drive pump work? A - Magnetically driven pumps are the industry standard when processing harsh and highly corrosive applications. The centrifugal force is driven by two rotating magnets rather than being directly coupled to a motor. This eliminates the need for a mechanical seal and therefore making magnetic drive [...]

Q & A – How do I know which pump is suitable for a corrosive liquid?

2020-06-23T20:58:49+01:00 June 23rd, 2020|

Q - How do I know which pump is suitable for a corrosive liquid?   A - If you are unsure as to the chemical compatibility and material suitability of a liquid, first check the material safety data sheet (MSDS) from the manufacturer of the liquid will give you some guidance. However, this is unlikely [...]

Q & A – What is your zero pressure guarantee?

2020-06-17T08:40:54+01:00 June 17th, 2020|

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 is running effectively as quickly as possible, [...]

Q & A – What Are Life Cycle Costs?

2020-06-03T08:48:44+01:00 June 3rd, 2020|

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 break down all the individual elements of a [...]

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

2020-05-27T19:02:55+01:00 May 27th, 2020|

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 rotating impeller within a casing that [...]

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

2020-05-20T10:54:09+01:00 May 20th, 2020|

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 discharge pressure required. But most importantly [...]