Choosing the Right Fuel Pump
Fuel pumps move diesel, petrol or AdBlue from a tank to a vehicle, machine or another tank. The right pump comes down to four things: power source, flow rate, fluid, and pump technology.
Power source. 12V DC pumps (PIUSI Bi-Pump 12V at 85 lpm, EX50 12V at 50 lpm, Macnaught 12V kits 60 lpm) run straight off a vehicle or tractor battery for ute-mounted tanks and service trailers. 24V DC pumps (Adam by Piusi PB1 24V at 85 lpm, Macnaught 24V kits) draw from a heavy-truck or twin-battery system. 240V AC mains pumps (PIUSI Panther 56-72 lpm, ST200 200 lpm, E300 550 lpm, Cube 70-90 lpm, EX50 240V) cover fixed depot and workshop installs. For sites with no electrical supply, the petrol-driven recoil-start pump kit (HP10 at 120 lpm) and engine-driven Yanmar L48N (240 lpm) deliver the highest flows.
Flow rate. Verified flows in this collection range from hand-pump (PIUSI AdBlue manual hand pump) through 50 lpm (PIUSI Battery Kit, EX50) and 85 lpm (PIUSI Bi-Pump 12V) at the portable end, up to 200 lpm (PIUSI ST200, GO Elephant 240V) for fixed depot use, and 550 lpm (PIUSI E300) for bulk transfer. Match flow to duty cycle, not peak demand. Light fleet refuelling sits at 60-80 lpm; civil and farm sites run comfortably on 100-200 lpm; bulk transfer needs 200-550 lpm.
Fluid. Diesel and waste oil run on standard cast-iron vane pumps (PIUSI Panther / E-series, Macnaught Rotary Vane, EBSRAY V-series sliding vane). Petrol storage and dispensing requires explosion-proof equipment, so pumps must be EX-rated and electrical fittings must match the hazardous-area zone (PIUSI EX50 series). AdBlue dispensing needs stainless internals and Viton seals: PIUSI AdBlue Cabinet Pump Kit, AdBlue Portable Pump Kit, AdBlue Hand Pump, and Macnaught 240V UREA/DEF IBC pump are all purpose-built. Never share a diesel pump with AdBlue or vice versa.
Pump technology. Vane pumps (PIUSI K-series, Macnaught Rotary Vane, EBSRAY) are the workshop standard: positive displacement, self-priming to about three vertical metres, tolerant of dry running, simple to rebuild. Bi-lobe pumps (Macnaught L-BLPH) handle higher viscosity and more abrasive fluids. AODD diaphragm pumps (Graco Husky 307, 515, 1050, 3300) are air-driven, run dry indefinitely, and shift large volumes when shop air is available; the Husky 3300 alone moves 1,135 lpm on a 3 inch port for genuine bulk diesel transfer.
If you need a turn-key bowser with NMI fiscal-grade metering for billing, look at Bowsers and Dispensing instead of a bare transfer pump. Diaphragm-only applications also live in the dedicated Diaphragm Pumps collection.