Gauge pressure is relative to the pressure surrounding the measuring device 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.

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 may be blocked which increases the pump’s differential operating pressure.

This depends on the installation and environmental conditions which vary between installations. Though as a general rule it should be serviced/changed every 6 months. It is best to monitor the filter upon initial installation to establish a specific regime.

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.

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

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

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

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.