The REF Series of large capacity, full flow reservoirs are mounted at an accessible central location to automatically control fluid flow. Designed for gravity flow, can be connected in a series to any number of metering valves or valve brushes to provide an inexpensive, automatic lubrication system. Large reservoir clearly provides 360° visual check of fluid level and condition. Normally closed solenoid is usually wired across machine starting switch to provide automatic off / on full flow fluid control. Compact center solenoid valve and mounting shank combination provides good weight distribution and facilitates mounting. Other commercial voltages available - Please specify. Fill cap with side vent minimizes the possibility of dust and dirt entering the reservoir. Standard Features: 5/8 inch UNF stud end 1/4 PTF female connection Voltages available: 24V, DC 120V/60Hz 1Ph 240V/60Hz 1Ph 480V/60Hz 1Ph Temperature & Pressure Ratings: Maximum working temperature up to 140°F (60°C) Rating is at atmospheric pressure