Wilden Pump Air Valve Systems Go with the Flo - Revolutionary Technology You require specific features and benefits depending on your pumping requirements and the mandates set by industry norms. You require a total solution and are not willing to compromise. To this end, Wilden has revolutionised air distribution technology by developing its own unique solutions below. Each has it's own individual characteristic designed to benefit the end user, from variable flow valves to minimalist valves utilising zero moving parts. Feel free too browse the links below to find out a little more about the various ADS (air distribution systems):