030 Diaphragm Pump DC 5V 6V Water Pump Negative Pressure Self Priming Suction Pump Small B A compact, reliable diaphragm pump designed for lowvoltage DC applications where selfpriming suction and gentle, positive displacement flow are required. The 030 Diaphragm Pump (Small B) runs on DC 5V or 6V and provides negativepressure selfpriming action to draw water from a reservoir without manual priming. Its small size and simple electrical compatibility make it well suited for hobby, DIY and lightduty fluidhandling tasks. Key benefits Selfpriming negativepressure design: draws liquid from a source automatically, reducing setup steps and enabling use where gravity feed is not practical. Lowvoltage DC operation: works with 5V or 6V DC supplies for easy integration into batterypowered or lowvoltage systems. Compact and lightweight: small form factor makes mounting and placement flexible in tight spaces or portable devices. Gentle diaphragm pumping: positive displacement action handles water reliably without need for complex controls. Main features and attributes Model: 030 Diaphragm Pump, Small B variant Power: DC 5V / DC 6V operation Functionality: negative pressure selfpriming suction pump for water Use: designed specifically for pumping water and similar lowviscosity fluids Form factor: small, compact pump suitable for constrained installations Operation type: diaphragm (positive displacement) pump offering reliable suction and discharge without complex priming How it solves common problems Eliminates manual priming: negative pressure selfpriming suction draws fluid into the pump automatically, saving time and minimizing leakage or spillage during startup. Simplifies lowvoltage projects: direct DC 5V/6V compatibility avoids the need for additional power conversion for common battery and DC supply arrangements. Fits tight spaces: compact size allows installation where larger pumps cannot be used, enabling more flexible product and project designs. Typical applications Small water transfer and circulation for hobby aquariums, desktop fountains, or decorative water features where a compact, lowvoltage pump is needed. Portable or batterypowered systems such as model boats, field testing rigs, or mobile watering setups that require selfpriming suction and simple DC power. DIY or prototyping tasks including small irrigation systems, humidifiers, or liquid dispensing in projects where a compact diaphragm pump is preferred. Installation and compatibility notes Requires a stable DC 5V or 6V supply; ensure wiring and power source match the chosen operating voltage. Intended for water and similar lowviscosity fluids; confirm fluid compatibility before use. Compact mounting options make it suitable for enclosures and assemblies with limited space. The 030 Diaphragm Pump DC 5V 6V Water Pump Negative Pressure Self Priming Suction Pump Small B is a straightforward, lowvoltage solution for smallscale watermoving needs where selfpriming capability, compact size, and diaphragm pumping action are required.