Small 310 DC Soap & Foam Pump Motor (3V / 3.7V) — compact selfpriming unit for DIY automatic soap dispensers, hand washers, and small spraying machines. Designed to convert bottles and small tanks into reliable, automatic liquid or foam dispensers. Why you need this Makes touchless dispensing simple and affordable. Ideal for building or repairing automatic soap dispensers, hand washers, and small spraying machines. Selfpriming design eliminates tedious manual priming and keeps liquid flowing after pauses in use. Compact 310size motor assembly fits into small housings and DIY projects where space is limited. Key benefits Versatile: works as a soap pump, foam pump, or liquid pump depending on nozzle and mixture. Easy integration: intended for DIY installations and retrofit applications for automatic soap dispensers. Reliable operation at common low voltages: designed for DC 3V and DC 3.7V power sources. Features and attributes Voltage: DC 3V / 3.7V compatible. Model/Size: Small 310 motor unit suitable for compact dispenser designs. Functionality: Selfpriming pump capable of generating foam or dispensing liquid depending on configuration. Application type: Soap pump, foam pump, liquid pump for DIY hand washers and spraying machines; also suitable as the motor for automatic soap dispensers. Installation: Compact form factor for easy mounting in small enclosures or retrofit kits. Performance and compatibility Optimized for lowvoltage battery or DC power setups where 3V or 3.7V supply is used. Designed for short to moderate duty cycles typical of handwashing and dispensing tasks. Compatible with common liquid soaps, detergents, and diluted solutions when used with appropriate tubing and nozzles. Typical use cases Home automatic soap dispenser: Convert a standard soap bottle into a touchless dispenser by combining the small 310 motor pump with a soap reservoir, tubing, and power source. DIY handwasher project: Build a countertop or wallmounted handwasher that dispenses foam or liquid soap with minimal space and power requirements. Small spraying machine: Use in compact spraying applications for cleaning solutions or diluted liquids where a lowvoltage, selfpriming pump is required. What to expect in a project Compact, easytofit pump motor useful for retrofits and custom housings. Flexible usage as either foam or liquid dispenser depending on nozzle and mixture chosen. Integration requires a compatible 3V or 3.7V DC power source and basic tubing/nozzle components for the intended dispensing method. Notes on selection and safety Confirm your power source matches DC 3V or DC 3.7V operation before installation. Use appropriate tubing, nozzles, and mounting hardware for stable installation and leak prevention. Test with the specific soap or detergent solution you intend to use to ensure compatibility and desired foam quality. This small 310 DC pump motor is a practical component for anyone building or repairing small automatic dispensers and spraying machines, offering selfpriming operation and flexible foam or liquid dispensing at common low voltages.