Small, lowvoltage DC pump designed for soap, foam and liquid dispensing. The DC 3V / 3.7V Small 310 selfpriming pump is built for DIY hand washers, automatic soap dispensers and small spraying machines. It offers a compact, easytointegrate solution for touchless or powered dispensing projects. Key benefits Hygienic and convenient: Enables automatic, touchless soap or foam dispensing when paired with a sensor or switch, reducing contact and crosscontamination. Easy to install and integrate: Selfpriming design removes the need for complex priming routines, speeding up assembly for DIY devices and replacements. Flexible power options: Operates at DC 3V or 3.7V, making it suitable for batterypowered or lowvoltage applications. Compact for tight spaces: Small 310 form factor fits into countertop dispensers, portable washers and compact spraying units without requiring large housings. Key attributes Functionality: Selfpriming liquid pump capable of handling soap, foaming solutions and other liquid cleaners for dispensing or spraying applications. Compatibility: Designed for DC 3V and DC 3.7V power sources; suitable for lowvoltage battery packs and small DC adapters. Size and model: Small 310 pump — compact footprint intended for integration into DIY hand washers, automatic soap dispensers and small spraying machines. Performance: Intended for reliable transfer and dispensing of liquid and foam solutions in small to mediumscale consumer and DIY applications. Typical use cases Automatic soap dispenser: Build or countertop or wallmounted dispensers for kitchens, bathrooms or public spaces. Combine the pump with a sensor, microcontroller or simple switch for touch operation. Portable hand washer or travel unit: Power from a small battery pack (3V or 3.7V) to create a compact, mobile handwashing unit for outdoor activities, workshops or temporary stations. Small spraying or foaming machine: Integrate into DIY sprayers to apply liquid detergents, foaming soaps or cleaning solutions in small cleaning machines or detailing setups. Installation and practical tips Match the pump to a compatible 3V or 3.7V power source and appropriate tubing for your fluid. Secure connections to prevent leaks. For automatic operation, pair with a controller, sensor or switch capable of handling the pump's DC supply. Use with liquid or foaming solutions recommended for soap dispensers; test compatibility with concentrates before longterm operation. Keep accessible for periodic cleaning or flushing when changing fluids to maintain pump performance. Why choose this pump This Small 310 DC 3V / 3.7V selfpriming pump is specifically intended for soap, foam and liquid dispensing tasks in DIY and small automatic devices. Its lowvoltage operation and compact size make it a practical choice for hobbyists, projects and compact dispenser designs where ease of integration and reliable selfpriming behavior are priorities.