CJWP08 DC 3V / 3.3V / 3.7V Suction Vacuum Pump — M20 Selfpriming Diaphragm Water Pump Overview The CJWP08 is a compact DC diaphragm pump designed for lowvoltage suction and selfpriming water applications. Built around a diaphragm mechanism and fitted with M20 threaded ports, this pump delivers reliable suction/vacuum performance from common 3V, 3.3V and 3.7V DC supplies. It is intended for straightforward integration into batterypowered and lowvoltage systems where controlled water transfer or vacuum generation is required. Key benefits Lowvoltage operation: Works directly with 3V, 3.3V or 3.7V DC sources for batterypowered, portable and embedded applications. Selfpriming suction: Diaphragm design enables selfpriming so the pump can draw liquid without manual priming, simplifying setup and use. Easy plumbing: M20 threaded inlet/outlet provides standard connection compatibility for hoses and fittings. Reliable diaphragm action: Positive displacement diaphragm pumping gives consistent suction and is suitable for intermittent use in small systems. Compact and integrable: Small footprint and DC drive make the CJWP08 simple to mount and control in custom or retrofit installations. Key attributes Model: CJWP08 Power: DC operation at 3V, 3.3V or 3.7V Function: Suction / vacuum generation and water transfer via diaphragm pumping action Porting: M20 threaded connection for inlet and outlet compatibility Design: Selfpriming diaphragm pump optimized for lowvoltage applications Compatibility and integration Works with singlecell Liion (nominal 3.7V), 3V battery packs and 3.3V electronic systems. M20 threads fit standard M20 fittings and adapters; use appropriate hoses and sealing to prevent leaks. Can be driven by basic DC power supplies, battery packs, or driven via motor drivers controlled by 3.3V logic. Confirm your power source can supply the required current for reliable operation. Recommended applications (examples) Portable water transfer and camping: Batterypowered water draw for portable sinks, camping showers or small transfer tasks where mains power is unavailable. Small fountains, aquarium maintenance and hobby projects: Lowvoltage pump solution for circulation, topping or water change tasks in compact aquatic setups. DIY and embedded systems: Integration into batteryoperated dispensers, solarpowered microsystems, or electronics projects that need compact suction or gentle water transfer. Operation and care Use appropriate inlet filters to prevent debris from entering the pump and protect the diaphragm. Ensure secure M20 connections and suitable hose fittings to avoid leaks. For longest service life, operate within the intended duty cycle and avoid prolonged dry operation. Periodic inspection and cleaning of the inlet/outlet ports will maintain consistent performance. Why choose CJWP08 The CJWP08 is a purposebuilt, lowvoltage diaphragm suction pump that simplifies selfpriming water transfer in portable and embedded applications. With M20 plumbing compatibility and support for 3V, 3.3V and 3.7V DC supplies, it is a practical, easytointegrate choice when compact suction and reliable diaphragm pumping are required.