Q – What is the difference between Absolute and Gauge pressure?

A- Gauge pressure is relative to the pressure surrounding the measuring devise or atmospheric pressure, whereas Absolute pressure is the total pressure exerted on a liquid or gas. Assuming we are at sea level under standard conditions then the atmospheric pressure would be 1013mbarA or 0mbarg.


Q – Why is my side channel blower operating at excessive temperature?

A – The location of the blower could dictate that it is getting insufficient cooling, alternatively there is no pressure safety relief valve or it is not operating correctly. Additionally, the inlet filter maybe blocked which increases the pumps differential operating pressure.


Q – How often should I change my blower inlet filter element?

A – This is dependable upon the installation and the environmental conditions which vary between installations. Though as a general rule it should be serviced / changed every 6 months and its best to monitor the filter upon initial installation to establish a specific regime for your installation.


Q – I want to reduce the service costs and down time of my dry running vane pumps?

A – Eurovacuum Products offers improved pumping technology which does not have blades or contacting rotary components within the pumping chamber, making them virtually maintenance free. See our page on Claw Pumps.


Q – What protection does my pump motor need?

A – All motor should be suitable fused and fitted with thermal overload protection and its setting compatible with the details on the motor nameplate.


Q – How can I get technical details concerning your products?

A – We are always pleased to discuss your requirements and where possible provide you with tailored information. Contact us


Q – I have an application which does not fall in line with your standard products?

A – Bespoke pumps have been supplied to customer’s specifications and we have the flexibility to provide unique pumps and systems as a solution.


Q – Which way around do I install my relief valve?

A – Ensure the valve is teed into pumps  connecting line and free to draw or relieve to atmosphere.  There is an arrow on the label of the valve showing the direction of flow through the valve,  for a vacuum installation the arrow will be pointing down.  If it is being used on a blower then the arrow should be pointing up.