Hale's Model ESP Environmentally Safe Priming System provides the ultimate in fast priming, high vacuum performance and reliability without the use of a lubricant. Technologically advanced and environmentally safe, the ESP is self lubricating. There is no oil to check, no oil is expelled to the ground. The ESP is a semiautomatic priming system with a single action control valve which simultaneously activates the entire system ensuring fast, consistent air evacuation.

The ESP features an enclosed motor to prevent dust, dirt, and water from entering. all system components, motor/pump unit, group strap, and control valve are supplied ready for assembly.

Single action, push-pull control valve of all bronze construction. Designed for mounting on pump or panel for remote control operation.