The Cla-Val Model 100-31 Powercheck Valve is a hydraulically operated diaphragm valve with a built-in check feature to prevent return flow. Available in globe or angle pattern, it consists of four major components: the body, intermediate chamber, diaphragm assembly and cover. The diaphragm assembly is the only moving part.

The Model 100-31 Powercheck Valve is recommended on system applications where a positive check feature is necessary to prevent reverse flow.