P1 Diesel Portable Fire Pump — Non-Priming Motopump

The Kozmaksan P1 Diesel portable fire pump is a first-of-its-kind non-priming motopump, powered by a 23.1 HP Lombardini diesel engine. Like its gasoline counterpart, the P1 Diesel uses Kozmaksan's patented mechanical suction technology, pushing water upward with the help of a propeller rather than creating a vacuum — meaning the pump can restart self-suction within seconds even after running dry, with no loss of flow rate up to 7 meters of suction lift and a maximum geographical suction depth of 10 meters.

This patented non-priming suction system eliminates one of the most common failure points in portable firefighting pumps: the priming mechanism itself. Built with a four-cycle, 2-cylinder, air-cooled 954cc diesel engine delivering 17 kW (23.1 HP), the P1 Diesel features electric starting, a 7-liter fuel tank, and direct fuel injection for reliable performance in the field — with diesel's typically longer runtime per tank making it well suited for extended deployments.

The pump body is manufactured from corrosion-resistant, advanced aluminum alloy and splits into two separate parts for fast, tool-free maintenance — with all components manufactured in-house by Kozmaksan, ensuring straightforward spare parts availability worldwide. Two unique protection systems safeguard the pump and engine against damage from hard debris entering the suction hose during operation, and the pump's dry-running capability means operating without water causes no damage to the pump or engine — a critical safety feature during firefighting operations.

Beyond structural firefighting, this multipurpose portable water pump handles dirty water, flood water, oily water, sewage, and seawater with equal reliability, making it suitable for fire and rescue, municipal, agricultural, and disaster-response applications. The P1 Diesel is certified to ISO 9001, TSE, CE, and EN 14466 (the European standard for portable fire pumps), with a single-end suction centrifugal pump design featuring a 4" (100mm) Storz-type suction connection and twin 2-1/2" (65mm) Storz-type discharge outlets with ball valves.

At 125 kg dry weight (140 kg wet) and 600 x 850 x 750 mm dimensions, the P1 Diesel is the heavier-duty counterpart to the P1 Gasoline — trading some portability for diesel's typical fuel efficiency and extended runtime, without compromising on pressure performance or flow reliability.

Want to understand how this system works in more detail? Read our guide: Why Kozmaksan Portable Fire Pumps Don't Need Priming.