Plastic foot valves can be categorized primarily into two main types: Flapper Type and Sprint Type, each offering unique functionalities and features. Flapper Type Plastic Foot Valves utilize a hinged flapper mechanism that opens with water flow, allowing liquid to enter the pump while preventing backflow when the flow ceases. Variants within this category include standard flapper valves for general use, heavy-duty flapper valves designed for higher pressure applications, and adjustable flapper valves that allow for flow rate modifications.

On the other hand, Sprint Type Plastic Foot Valves are engineered for quick operation and efficient sealing, making them ideal for dynamic fluid systems. Sub-variants in this type include high-flow sprint valves for applications requiring increased flow rates, compact sprint valves for installations in limited spaces, and suction sprint valves that enhance pump efficiency in suction applications. Additionally, there are other variants like screened plastic foot valves with integrated mesh strainers for debris filtration, threaded versus slip-on designs for secure connections, and check foot valves that prevent backflow.