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Webinar: Liquid handling Event by Festo UK & Ireland

On-line webinar

01/12/2020(10:00-11:00)

How pressure-over-liquid provides precise, accurate and cost-effective throughput Precise and accurate (more)

Southern Manufacturing

Farnborough, Hants(GU14 6TQ)

20/04/2021 - 22/04/2021

Southern Manufacturing and Electronics is the most comprehensive annual industrial exhibition in the (more)

PPMA Show 2021

NEC, Birmingham(B40 1NT)

28/09/2021 - 30/09/2021

PPMA Show 2021 will be the UK’s largest ever event dedicated to state-of-the-art processing and (more)

Advanced Engineering 2021

NEC Birmingham(B40 1NT)

03/11/2021 - 04/11/2021

Join us in our 12th and most important edition to date, as we invite engineers and management from all (more)

Festo offers free advice on pneumatic valve selection

Festo offers free advice on pneumatic valve selection

Festo, the leading supplier of automation equipment, is offering free advice to help engineers designing and specifying pneumatic systems to select the best valve for their application. The intention is to give confidence when choosing from the company's Blue Star Core Range of products, which are available for next day delivery and combine proven Festo quality with attractive pricing.

Andy Parker-Bates, Product Manager for pneumatics at Festo, says: "Production demands have led to an extension of the range of available technologies and valve types, models, and their properties, so choosing the best fit for your application has become increasingly complex in recent years. We felt it was time to share our expertise and help our customers to choose the best valve for the job."

Included in the guidance are descriptions of poppet and piston spool valves (the most commonly used valves in pneumatics applications), their operation and respective pros and cons. For example, poppet valves are lower cost and offer good switching times, but provide lower flow and can be noisier than other alternatives. Hard-sealed spool valves will also experience leakage and lower flow rates but are more durable and do not stick after long periods of inactivity.

Soft-sealed spool valves have traditionally been relatively expensive due to seal wear, but now normally come with a cartridge which holds the gaskets and sealing rings. This greatly reduces wear and increases their working life; as well as enabling the valve to operate at up to 16 bar and with vacuum. If you are looking for a valve with low leakage, the option of vacuum and ejector pulse, or if you require higher operating pressures, the most suitable option is probably a piston spool valve with cartridge sealing technology.

In addition to valve operation, Festo's guidance also covers associated topics such as connectivity, mounting and correct sizing of valves. "Oversizing valves can lead to connectors, tubing and sometimes actuators being larger than necessary, which adds additional component cost as well as using more air and therefore energy," says Andy Parker-Bates. "Undersized valves on the other hand cause restrictions in the circuit and can seriously impair the performance of the system."

Festo’s guidance is available free online in a number of formats, including a series of short videos as well as top tips and, for those seeking more in-depth information, a white paper giving a technical comparison of available solenoid valves.

 

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