What does an engine drive pump do?

The majority of gasoline powered pumps sold in North America are referred to as general purpose, utility, or transfer. This is simply moving liquid from one point to another. Pump construction can be a variety of materials. Preference is given to lightweight and portability.

Types of Engine Drive Pumps

Agricultural

These pumps are designed to handle agricultural chemicals including fertilizer, herbicides and pesticides. Pump construction is primarily either a poly derivative or cast iron. Aluminum is usually not used as it does not provide strong chemical resistance. Solids handling is not required. The seal elastomer is usually EPDM or fluoroelastomer.

Semi-Trash

Semi-trash pumps have some solids handling capabilities. The pump impeller is typically a semi-open vane, providing clearance to pass 1/2" to 3/4" diameter solids. Mechanical seal faces are usually made from a hard material that provides abrasion resistance. These pumps are used for drainage and construction dewatering.

Trash

Trash pumps provide more aggressive solids handling, often 1” in diameter or greater. Typically, these pumps can handle a solid that is no more than 50% of the unit’s suction port size. Most manufacturers include a removable casing that allows access to internal hydraulics for cleaning and repair.