Product Description
Product Overview
The JB-70 electric and manual dual-use metering fuel pump is suitable for small and medium-sized fuel stations, agricultural machinery stations, supply cooperatives, factories, vehicle fleets, ships, and other units transporting various fuels such as gasoline, diesel, kerosene, engine oil, and edible oils. The pump is compact, reliable, stable in performance, easy to move, and features an explosion-proof motor and a 25mm flow meter. It operates electrically when power is available, and manually when no power is present. The meter is accurate and does not have a zero-reset function.
Parameter Range
- Model: Vertical dual-use metering electric pump
- Maximum suction height: ≤4-5m
- Working pressure: 0.25MPa
- Flow range: 25-60L/min, Flow: 60-80
- Flow measurement error: ±2% (Grade 2), ±1% (Grade 1)
- Inlet nominal diameter: φ25mm
- Explosion-proof motor: 0.8KW three-phase asynchronous motor
- Motor power supply voltage: 380V 50HZ
- Flow meter: LXYL-25 rotor type flow meter (measurement error ±2%)
- Flow meter: LY-25 screw type flow meter (measurement error ±1%)
- Drive mode: A-type triangular belt with a belt length of 1168mm
- Dimensions: 51X41X54
- Weight: 55KG
Features and Applications
The JB-70 electric and manual dual-use metering fuel pump features a blade type with an overflow valve device. When the fuel tank is full and the nozzle is closed, the blade pump continues to work. If the oil pressure exceeds the rated pressure, the overflow valve automatically activates, returning the fuel to the oil pool or tank.
Working Principle
Turn the explosion-proof switch knob to the “On” position. The explosion-proof motor drives the blade pump through the triangular belt pulley. The oil is drawn from the oil pool (or barrel), passing through the oil pipe filter and being sucked into the blade pump chamber. The oil is then discharged through the pump’s oil outlet into the flow meter, which automatically measures and counts. The oil flows through the oil outlet pipe into the nozzle. When the nozzle handle is squeezed, the oil automatically flows into the container. Releasing the handle stops the flow, and the measured value on the meter indicates the amount of oil dispensed.
When the nozzle rubber is closed and the motor continues to drive the blade pump, the oil pressure inside the pump increases. If the pressure exceeds the rated value, the overflow valve automatically works to protect the pump. The oil is returned through the pump inlet back to the oil pool (or tank).
Structural Diagram
Performance Parameters
|
Model
|
Inlet/Outlet Diameter (mm)
|
Flow Range (L/min)
|
Suction Height (m)
|
Head (m)
|
Measurement Accuracy (%)
|
Motor Power (KW)
|
Voltage (V)
|
Weight (kg)
|
Cumulative Counter Range
|
|
JB-70
|
25
|
55-65
|
5
|
25
|
±1
|
0.75
|
380
|
75
|
999
|
Maintenance and Care
- Regularly check the blade pump, flow meter, oil gun, and oil pipeline for blockages. Repair any issues promptly.
- Keep the conductive rubber wheel clean, and prevent the accumulation of dirt that may affect insulation.
- Always disconnect the power supply and rotate the explosion-proof switch to “Off” when moving or servicing the unit to avoid safety risks.
- Regularly clean the inlet filter. To clean it, loosen the screw on the pipeline case, remove the filter screen, and be careful not to damage the screen. Replace it if damaged.
- After 500 hours of operation, disassemble and inspect the blade pump, oil gun, and pipeline for cleaning.
- To simplify the structure, this unit does not come with a lighting fixture. If users need to observe the counter, they should use a certified explosion-proof light and avoid using ordinary lights or flashlights.
Operation and Usage
Operating Procedure
- Turn on the power and rotate the explosion-proof motor switch to “On”.
- Squeeze the oil gun handle to dispense oil, and the flow meter will start counting.
- Release the oil gun handle to stop the flow, and the counter will show the amount of oil dispensed (or the difference between the current and previous readings).
- When stopping, rotate the explosion-proof motor switch to “Off” and then turn off the power supply.
Precautions for Use
- If the pump has been in storage for a long time, measure the insulation resistance of the motor using a megohmmeter before use. The value should not be lower than 10 megaohms.
- Before starting, check that the motor rotation is correct (it should rotate clockwise when facing the pulley).
- When the nozzle is closed, the motor should not continue to pump oil for more than one minute.
- Adjust the pressure by using the overflow valve’s screw to maintain proper oil output efficiency and pressure.
- To reset the flow meter counter, push the copper cap on the counter’s side inward, and turn the handwheel counterclockwise to reset the pointer to zero.
- Control the tightness of the oil gun handle to roughly adjust the oil flow rate.
- Avoid wear on the rubber cable by keeping it off the ground. Regularly check for damage to the cable.
- When not in use, store the oil gun and cable properly. Clean the inlet pipe before inserting it into the oil pool or barrel.
- Ensure proper grounding of the power supply and check for correct phase wiring before connecting the rubber cable.
- Do not replace the pump’s oil pipes with plastic or nylon pipes that may generate static electricity.
- Do not use regular cables instead of the dedicated rubber cable.
- Operators should avoid wearing synthetic clothing and must comply with safety protocols for petroleum and chemical industries.
- Never exceed the rated flow to avoid increasing static electricity accumulation, which could pose safety hazards.
OEM & Custom Solutions
We offer OEM branding, custom hoses, upgraded flow meters, explosion-proof components, enhanced seals, special oils compatibility, customized voltage motors, and export-ready packaging for international customers.
FAQs for Overseas Buyers
1. What types of fuel can the JB-70 pump handle?
Gasoline, diesel, kerosene, engine oil, and edible oil.
2. Can the pump work without electricity?
Yes, the manual hand-crank mode allows operation without power.
3. Is the motor explosion-proof?
Yes, the pump uses an explosion-proof three-phase asynchronous motor.
4. What is the accuracy of the flow meter?
LXYL-25: ±2%, LY-25: ±1% depending on model.
5. How high can the pump suction be?
Normal suction height is 4–5 meters.
6. Does the pump have a relief valve?
Yes, the built-in overflow valve prevents overpressure when the nozzle is closed.
7. Is OEM customization available?
Yes, including branding, hoses, meters, motor specifications, and packaging.
OEM & Custom Solutions
We offer OEM branding, custom hoses, upgraded flow meters, explosion-proof components, enhanced seals, special oils compatibility, customized voltage motors, and export-ready packaging for international customers.
FAQs for Overseas Buyers
1. What types of fuel can the JB-70 pump handle?
Gasoline, diesel, kerosene, engine oil, and edible oil.
2. Can the pump work without electricity?
Yes, the manual hand-crank mode allows operation without power.
3. Is the motor explosion-proof?
Yes, the pump uses an explosion-proof three-phase asynchronous motor.
4. What is the accuracy of the flow meter?
LXYL-25: ±2%, LY-25: ±1% depending on model.
5. How high can the pump suction be?
Normal suction height is 4–5 meters.
6. Does the pump have a relief valve?
Yes, the built-in overflow valve prevents overpressure when the nozzle is closed.
7. Is OEM customization available?
Yes, including branding, hoses, meters, motor specifications, and packaging.