The Samson MC8 OG Series Mechanical Dispense Valve is a metered control valve used at the end of a hose assembly for measured dispensing of lubricants and antifreeze solutions in tough, intensive use applications. Ideal for synthetic and mineral based oil, transmission fluid, gear oil, hydraulic oil and fluids, and ATF. The valve offers a high precision machined measuring chamber with tight tolerances, quality gears, and a stainless steel shaft to eliminate the need for calibration to adjust for fluid viscosity. It has a maximum free flow rate of 8 gallons/minute and a maximum working pressure of 1,000 psi.