Super quick exhaust valves outperform flat-disk-type diaphragms by using a molded shuttle. Valves stop lubricant back-flow through control valve on exhaust cycle, allowing progressive oil flow to small-bore cylinders. Shuttle's full-formed seating surface provides long cycle life and eliminates need for flow restricting metal body webbing. They are available in port sizes from #10-32 to 3⁄4 in., for speeds to 600 cycles/min. They operate in pressures to 150 psig and temperatures from –25° to 180° F.

Humphrey Products Co., (269) 381-5500, www.humphrey-products.com