JB-70 type electric and hand-operated metering pump vane pump, a relief valve device, when the tank filled with oil, to close the gun when the vane pump can continue to work, the oil pressure exceeds the rated pressure of the pump in the relief valve that is automatic, will return to the pool or by oil tank.
JB-70 type electric and hand dual-purpose metering pump product overview:
JB-70 type electric and hand-operated metering pump is suitable for the small oil around the main, gas station, agricultural station, supply and marketing cooperatives, enterprise team, vehicle and ship unit pumping oil, such as gasoline, diesel, kerosene, oil, oil and food etc.. The advantages of compact structure, reliable quality, stable performance, easy to move, and the device has the explosion-proof motor with 25 mm flow meter, electric power fuel, no power can be hand refueling, accurate measurement, no reset device.
JJB-70 - type electric and hand-operated metering pump characteristics and uses:
JB-70 type manual and electric dual-purpose metering pumps for vane type relief valve device, when the tank filled with oil, to close the gun when the vane pump can continue to work, the oil pressure exceeds the rated pressure of the pump in the relief valve that is automatic, will flow back to the oil tank or oil to oil tank.
JB-70 - type manual and electric dual-purpose metering pump technical parameters:
1, model: vertical dual metering electric pump
2, allow suction: less than 4-5m
3, the maximum working pressure: 0.25MPa
4, flow range: 25-60L/min maximum flow: 60-80
5, the provisions of the flow range error: + 2% (Level 2) + 1% (Level 1)
6, the oil inlet of the nominal diameter: 25mm
7, motor: explosion-proof three-phase asynchronous motor 0.8KW
8, motor power supply voltage: 380V 50HZ
9.1, flowmeter LXYL-25 type rotor flowmeter (indication error + 2%)
9.2, flow meter: LY-25 type spiral wing flowmeter (indication error + 1%)
10, transmission mode: V-belt pulley transmission triangle belt type 1168mm A
11, the overall size: 51X41X54
12, the whole machine weight: 55KG
JB-70 - type manual and electric dual-purpose metering pump structure and working principle:
The explosion-proof switch knob 1 is rotated to pass off the sign "connect", 2 explosion-proof motor through the belt wheel 4 drive vane pump 6, the oil from the oil tank (or barrel), after 11 oil filter 12, vane pump oil inlet hole is sucked into the vane pump cavity. After the vane pump oil outlet, the oil is pressed into the 8 meter automatic counting measurement, and the oil outlet pipe 10 into the nozzle when the gun handle pinch, oil automatically flows out into the container, loosen the handle, to stop the oil outflow.
When the rubber gun closed, the motor is still driving vane pump vane pump oil pressure in work, will increase, in order to prevent mechanical damage, once the oil pressure exceeds the rated pressure, automatic relief valve in the pump inlet pipe to flow back into the oil pump oil to the tank inner vane pump inlet hole (or tank).
JB-70 type manual and electric dual-purpose metering pump repair and maintenance:
1, should always check the vane pump, oil flow meter and oil pipeline. If not smooth should find the cause and repair.
2, keep clean and conductive rubber, insulation cover should prevent dirt.
3, the machine moving and maintenance, the power should be cut off and the explosion-proof switch knob to "stop the stalk position, to avoid the accident caused by charged operation.
4, the oil inlet end of the filter should be cleaned regularly. Unscrew the screw tube cleaning box can be taken out for cleaning filters, be careful not to break the filter, filter should be timely exchange has been broken.
5, the cumulative 500 hours of work, deal with the vane pump, oil pipe, dismantling, cleaning.
6, in order to simplify the structure, the machine does not support lighting, such as the user to observe the number of counters must be illuminated, should be equipped with explosion-proof lights, strict use of ordinary lamps and flashlights, etc.