ZE1014 - 2 Vane Polypropylene Rotary Pump (1 Gallon Per 16 Revolutions) is an accessory designed for dependable use with Goat Pumps fluid-transfer equipment and compatible setups. About This Item:. This two-vane rotary hand pump was built with professionals in mind and is constructed from polypropylene and fluorinated hydrocarbons, making this pump ideal for petroleum based products, water-based chemicals, chlorinated solvents, and more. This pump dispenses at a rate of 1 gallon per 16 revolutions or 1 quart per 4 revolutions and includes a 1-inch hose barb spout.