Parker developed the HASV Air Saver Module that generates pulsed air whilst also minimising pressure reduction during the short (30ms) off time to maintain the same efficiency as continuous air blow technology. 

HASV, which is the latest addition to the company’s pneumatic Air Saver product range introduced in 2015, is a compact unit that is able to generate high power. In addition, it represents safe, easy-to-control, environmentally friendly technology. Any factory or plant can move from continuous to pulsed air blow as an easy entry point for adopting greener credentials.

At a customer trial plant in the US, installing the Air Saver Module on 50 blowguns located across the production lines provided strong returns. At a pressure of 5 Bar (0.5Mpa), operating for a total of 120min/day, the factory calculates that it will save the equivalent of about €5500 on its annual electricity bill based on 240 days’ usage. 

Further advantages of HASV Air Saver Modules, which do not require a regulator, include a reduction in compressor operating time and noise, plus lower compressor load and maintenance costs; this is achieved without compromising blow pressure or flow volume. Pulse frequency is adjustable between 5 and 15Hz. 

Typical applications expected to benefit include any plants needing to remove metal chips or swarf from blind and tapped holes in machined parts such as manifolds, engine blocks and die-cast components, as well as facilities that need to remove water or liquid detergents from parts or products after cleaning processes.