Check the order information, confirm the capacity, head, efficiency, and power of the pump be tested, and confirm the diameter of the pump flanges;
according to the diameter of the pump flange, tested pump power, select the appropriate test pipeline and test motor;
connect the test pipeline, test motor, power supply and instrumentation sensors;
measuring the ambient atmospheric pressure, water temperature, inlet surface distance;
Input the capacity, head, efficiency requirements, gauge distance, atmospheric pressure and water temperature of the tested pump into the test software;
Vacuum is drawn to fill the pump chamber and the suction line with water;
Jog the water pump to confirm the correct rotation direction ;
start the pump;
Excluding the gas in the pressure sensor pipeline;
Take the point test according to the pump capacity (record the vibration and noise of the pump at the rated point. If you need to confirm the pump bearing temperature rise up, you need to run the pump for 70 minutes , then testing temperature rise up and record it)
Form a pump performance test report and print the test report;
Determine the test results according to the order requirements;
If the judgment is passed, go to the next process;
If the judgment is unqualified, return it to production for improvement, and repeat the above steps after improvement.
EBB3-36 type pneumatic pump is a kind of explosion-proof air operation Submersible pump, EBB3-36 type pneumatic pump is widely used, safe and reliable, can work continuously, EBB3-36 type pump is pneumatic operation pump
EBB3-36 type pneumatic pump is a mechanized tool with compressed air as power medium, which has the characteristics of small volume, high efficiency, safe and reliable, and continuous operation.
EBB3-36 Pneumatic operation submersible pump is widely used in shipbuilding, coal mines, construction, power stations, chemicals and other industries of sewage, water drainage and irrigation, but also flammable, explosive and other bad work of the only ideal tool
DATA OF EBB3-36 Pneumatic Operation Submersible Pump
The 1741-V visual automatic oiler is designed for long-term stable lubrication and oil supply.
The visual auto-oiler consists of a medium-duty spring (green), a light-duty spring (orange) and a heavy-duty spring (black). When used, the correct spring is selected according to the lubricant. #0-#3 grease can be used.
All models of lubricant oilers (both manual and electric) have a standard lubricant coupling for grease to the oil cup and embedded fuses to prevent overfilling or cup pressure Too high.
Interface thread 1/8 NPTF
Interface (butter): standard
Capacity: 2.2 cubic inches, about 3300ml
Maximum pressure relief: 15PSI (about 1kg)
Lubricating oil pressure: see table below
Spring full cup empty cup 1. Screw the thread interface into the bearing to lubricate
337421-1 Orange 0.23kg 0.147kg Note: With a hex wrench, do not tighten the oil cup with your hand.
337421-2 Green 0.307kg 0.193kg Damaged
337421-3 Black 0.387kg 0.240kg 2. Use grease coupling to add grease
Add grease to the following
Safe use specifications a. Side view if the plunger line to the lid angle is found.
Please add oil to the oil cup according to the installation and operation instructions. Do not overfill b. Look down and find the indication point on the plunger to reach the red line of the cup cover.
Carefully remove the lid and the lid is spring loaded.
Note: Once the oil cup is too full, too much lubricating fluid will flow out of the oiler’s lid and relieve pressure. All normal operations will be carried out.
Replace the spring:
Choose the right spring according to the grease.
Press and open the lid, then rotate the lid counterclockwise and release the pressure.
Note: The lid of the cup is equipped with a spring. It cannot be removed quickly and needs to be carefully removed.
Remove the spring from the cup.
Install the new spring into the cup
Note: Make sure the spring is installed in place on the cup and plunger
Press and install the lid onto the oil cup and turn it clockwise until the pressure is right.
1 Remove the oiler from the bearing housing
Open the lid as above
Remove the spring from the cup
Insert the stick into the center hexagon and push the plunger out of the cup.
Gently clean the parts with a clean, soft cloth.
When reinstalling, apply a layer of film on the oil cup and plunger with grease to lubricate.
Press the lid under the hand and rotate it clockwise to the proper pressure.
4:required head too high or the pump head selection smaller than actual required head
5:impeller been wear
6:water lever is too lower and been suction air
7:check valve installation reverse (way adopt to trouble shooting:)
1:correction motor rotation
2:clear the Debris, set a Filter Grille near by the pump suction
3:Diluted the flow medium with water
4:try to lower required head( for example to change big diameter pipe and smoother pipe, reduce the elbow qty, or increase elbow Arc radius, or change into higher head pump)
5:change pump impeller
6:adjustment Floating ball Switch position, Make the lowest level meet the requirements of the mounting dimension diagram
7:Correct check valve direction
Winding connectors or cable breakers
4:Stator winding Burnout
5:controlling electrical faults
way adopt to trouble shooting
1、check the line, eliminate the problem of missing phase
2、remove debris, it is best to set the filter around the pump (but not in the pump inlet installation filter)
3、Repair after checking with ohm meter
4、Repair after checking with ohm meter
5、repair, replacement winding or stator
6、Stator Burnout (reason maybe caused:)
1、the lack of phase
3、winding joint or cable circuit breaker
4、Stator winding burnout
5、Control electrical fault (way adopt to trouble shooting:)
1、configuration protection Control electrical appliances and: Find out the line, clear the fault; remove the dirt, tighten the impeller fastening screws and stainless steel spring washer; dilute the medium with water; rinse and dredge the cooling system
2、Replace the mechanical seal or “O” seal ring
3、Tighten the fasteners of each part
Too large current (reason maybe caused:)
1、Pipes and impellers are blocked
2、pumping liquid density or viscosity is high
3、the selected pump head greatly exceeded the actual needs, or the use of changing conditions, the device head greatly reduced, so that the pump over the recommended flow operation (way adopt to trouble shooting:)
1、Clean up the blockage in the pipe and impeller
2、Change the density or viscosity of the pumping liquid
3、off the small outlet valve, reduce the flow, or trim smaller impeller, or replace the lower head pump
pump inducer function , multi-stage pump inducer function, centrifugal pump inducer function
The inducer is installed in front of the first stage impeller of the centrifugal pump. It is called the front inducer. When the liquid flows through the inducer, it works on the liquid to increase the energy. It is equivalent to adding work energy to the liquid entering the rear impeller, which is equivalent to The liquid entering the rear impeller is pressurized to increase the suction of the pump.
The centrifugal pump inducer is an axial flow impeller with a low blade load (only a few meters lift), a small blade installation angle, a small number of blades, and a dense cascade of cascades. It has high inhalation performance. The lift generated by the inducer acts to pressurize the centrifugal impeller behind, and the suction performance of the multistage centrifugal pump is improved, so that the suction speed of the centrifugal pump can reach about 3000. At present, the design method of the inducer is an empirical design method based on the test. There are usually two design methods: one is a flat cylindrical inducer design, and the other is a curved-leaf tapered inducer .