25 type all aluminum hand-operated oil pump

The 25 type all aluminum hand cranked oil pump is a lightweight manual bucket pump with a diameter of 25mm and made of aluminum alloy. It relies on a hand cranked impeller to rotate and pump oil, without the need for power supply, light weight, and rust resistance. It is designed specifically for 200L standard oil drums and is mainly used for diesel/engine oil/lubricant extraction. It is an economical manual oil pumping tool commonly used in oil depots, auto repair, and agricultural machinery stations.

1. Model and Core Specifications

Model: 25 type/25 #/ST-25 (all aluminum)

Diameter: both inlet and outlet are 25mm (DN25)

Material: pump head+oil inlet pipe made of all aluminum alloy (corrosion-resistant (based on actual reports), rust free, lightweight)

Structure: centrifugal rotary impeller, hand driven, built-in one-way valve self-priming

Size and weight:

Inlet pipe length: about 1000mm (1 meter), can be inserted into the bottom of a 200L oil drum

Oil outlet pipe: compatible

25mm hose, commonly used 50-60cm

Total length: about 1300mm

Weight: 3.5-3.7kg (about 40% lighter than cast iron)

2. Performance parameters (25 type all aluminum)

Flow rate: 20-22 L/min (about 1.2-1.3 m ³/h)

Suction stroke: 1.5m (oil level can be absorbed normally within 1.5m below the pump's incoming oil level)

Lift: 5m (can deliver oil to a height of 5m)

Hand cranking speed: 70 times/minute (steady shaking saves effort)

Applicable viscosity: ≤ 500 mPa · s (diesel, engine oil, gear oil, etc.)

III. Core advantages of all aluminum material

Ultra lightweight carrying: The all aluminum body can be carried by one person with one hand, and the oil tank can be easily carried up and down with the car.

Stable rust prevention performance: The aluminum alloy oxide layer is resistant to oil and aging, and does not rust or crack easily after long-term contact with diesel/engine oil, with a longer lifespan than cast iron.

Smooth and effortless: The aluminum impeller is finely matched with the pump chamber, with low hand cranking resistance, no jamming, and the rocker arm is not tired for a long time.

Clean and non polluting: no rust falling off, and the engine oil/cooking oil is cleaner.

IV. Applicable media and scenarios

✅ Recommended extraction: diesel, kerosene, engine oil, lubricating oil, gear oil, hydraulic oil, edible oil (non corrosive oil)

❌ Prohibited from use: gasoline, strong acid and alkali, water, particulate liquids (vulnerable pumps or unsafe)

Typical scenarios:

200L iron/plastic drum for oil pumping (most suitable)

Auto repair shop oil change, agricultural machinery station refueling, construction site generator/engineering machinery oil supply

Oil depot bucket pouring, small gas station emergency, outdoor no electric field combined oil pumping

Fifth, usage method (simple 3 steps)

Assembly: thread the oil inlet pipe wrapped with raw material tape, screw in the pump head;

; Tighten the oil outlet pipe by 25mm and clamp it.

Barrel insertion: Insert the oil inlet pipe into the bottom of the oil barrel, and place the pump head on the barrel mouth.

. Hand cranked: For the first use, pour a small amount of engine oil into the oil outlet for lubrication, and shake the handle at a constant speed to release the oil; Stop shaking, automatic check, no backflow.

VI. Maintenance and Precautions

After use, empty the remaining oil, wipe it clean, store it dry, and extend its lifespan.

. Regularly clean the bottom filter of the oil inlet pipe to prevent blockage. Do not pump gasoline (volatile, flammable and explosive).

Avoid falling and smashing during low temperatures in winter. Aluminum material is brittle and prone to cracking at low temperatures.