The burks BQG Series Cutting Sewage Pump

Features

1.A powerful cutting knife is fitted at the bottom of the impeller, working together with a cutting disc; for strip-shaped foreign matter or non-metallic foreign matter it has a strong shearing action, cutting the matter off and discharging it smoothly to prevent clogging.
2.The pump is designed with a conical pump casing and a vortex impeller, and the flow passage is of non-clogging design.
3.The motor is a dry-type induction motor with insulation class B (130°C), and the enclosure protection class is IP68.
4.The motor is equipped with a temperature controller or motor protector, effectively preventing the motor from burning out under abnormal overload.
5.An automatic coupling device is available: by simple installation, the discharge pipe is fixed to the main saddle of the coupling device; during maintenance and repair, the pump can be easily lifted, detached and re-engaged along the guide rails by chain.

Applications

1.Drainage of domestic sewage and waste water from building septic tanks.
2.Discharge of excrement waste water from pig raising, livestock farming and farms.
3.Discharge of community waste water from schools, hospitals and institutions.
4.Waste water discharge from food, paper, textile and other factories.
5.Sewage pumping and discharge at raw water and waste water treatment plants, lift stations and pumping stations.

Technical Data

BQG-312

BQG-315

BQG-320

The performance curve and outline dimension drawing are as follows:

Warranty Certificate

1. This certifies that the product listed is covered by our company’s warranty and has passed strict quality control and inspection under our quality management system.
2. Please keep this certificate properly; no replacement will be issued if it is lost.
3. This product is warranted for one year from the date of purchase against faults not caused by human factors under normal use.
4. After the above period, if parts need to be replaced, the customer will be charged the cost of the parts and a service fee.
5. Our company continuously improves its products; if a part must be replaced during the warranty period, an improved part may be used.
6. Faults caused by force majeure (such as natural disasters) or by human factors of the user are not covered by the warranty.
7. Installation and use must be handled by professionals in accordance with the key points of use, otherwise faults caused by improper placement are not covered by the warranty.
8. Please test-run and accept the product immediately after delivery; any objection about product quality must be raised within one week, otherwise our company will not be responsible.

Made in Taiwan, marketed in mainland China.

Instructions for Use

Every pump makes a normal sound when running. If during use the head, current, vibration or sound differs extremely from normal, it is mostly a sign of an impending fault, and the pump must be checked and repaired immediately. A troubleshooting guide is attached for your reference.

(1) When lifting or moving the pump or equipment, pull the handle; never pull the cable, to avoid electric leakage.
(2) During transport, avoid collisions and handle with care.
(3) Use a leakage circuit breaker with this product, to prevent electric shock accidents caused by insulation deterioration as the product ages.
(4) Power voltage check: (A) single phase: 220V; (B) three phase: 380V; (C) when the pump runs under load, whether the voltage is sufficient (the voltage must be the same as stated on the nameplate).
(5) The pump must be used at the rated voltage; the allowable voltage variation must be within ±10%.
(6) Use the earth wire properly (the green core wire is the earth wire).
(7) Power frequency check: before use, confirm that the power frequency marked on the product matches the frequency used.
(8) If the cable is not long enough and must be extended: pay attention to the thickness, size and length of the wire; improper extension causes voltage drop, difficult motor starting and shortened product life. The joint of the wires must not be put into water.
(9) Confirm the direction of rotation: (A) single phase: the direction of rotation is fixed before leaving the factory; (B) three phase: if it runs in reverse, simply swap any two of the three power wires (if the pump runs in reverse, it vibrates greatly, sounds abnormal, delivers less water, and the motor may burn out).
(10) Confirm that starting is normal; if it cannot start, check whether the impeller is stuck due to rust.
(11) Do not bury the pump in sludge or sand piles, and do not let debris block the pump piping; raise the pump as much as possible so that the bottom of the pump is exposed.
(12) Use discharge piping of the same specification as the pump; using piping smaller than the pump outlet increases the head loss due to improper piping and reduces the discharge, so please be careful.
(13) When the pump is running, the water level must not be lower than the pump body; the pump motor lacks water cooling, its temperature rises quickly, and the motor may burn out.
(14) Warning! The pump must not be used for flammable or explosive liquids such as petrol, fuel oil or kerosene, and must not be used in flammable or explosive places.

Inspection, Repair and Maintenance

When inspecting the pump on site, make sure the power switch is turned off before carrying out the inspection.

(a) Removing debris from the pump: after pumping water containing silt, especially cement, let clean water flow in to wash the inside of the pump for a few minutes before stopping; if this is not done, silt, cement or debris will block the impeller and the inside of the body, and the pump will not start next time.
(b) Insulation resistance: check regularly every month; measure the insulation resistance between each phase of the motor and the earth wire with a 500V insulation resistance meter, and confirm that it is 10MΩ or above (if the result is below 10MΩ, repair immediately).
(c) Shaft seal and lubricating oil check: the service life of the shaft seal, calculated on pumping clean water, is about 5000~6000 hours, so check the lubricating oil at least every six months; when the lubricating oil becomes turbid or contains bubbles, repair immediately and replace the shaft seal and lubricating oil.
(d) Storage: if the lubricating oil check, impeller wear check and insulation resistance check are done before storage, the pump can be used immediately next time without waiting (and if repair is needed, there is ample time to do it well). The inside and outside of the pump can also be washed with clean water, and after the water has completely dried, store it in a dry indoor place.

Troubleshooting

No sound at all and does not run when connected to the power supply

Cable broken → Replace the cable
Poor contact of the power cord → Make a complete connection
Motor copper wire broken → Repair and rewind
Protector tripped → Trace the cause of the trip and deal with it
Protector defective → Replace the overload protector
Fuse blown → Replace the fuse

Faint sound but does not run

Three-phase pump in phase-loss state due to poor single-phase contact → Make a complete connection
Phase loss caused by poor contact of switches → Adjust the contact parts
Phase loss caused by a broken cable core wire → Replace
Phase loss caused by a blown fuse → Replace
Phase loss caused by poor contact of the outlet wire → Make a complete connection
Single-phase break of the motor copper wire → Repair and rewind
Binding caused by a defective bearing → Replace
Capacitor of the single-phase pump defective → Replace
Centrifugal switch of the single-phase pump defective → Replace
Impeller bound → Remove the impeller and clear the debris
Voltage drop → Adjust the power supply voltage
Generator capacity insufficient → Replace with a larger capacity

Stops immediately after starting

Voltage drop → Adjust the power supply voltage
Generator capacity insufficient → Replace with a larger capacity
Voltage imbalance of the three-phase pump → Adjust the power supply
Protector defective → Replace
Motor copper wire defective → Repair and rewind
Viscosity of the pumped liquid too high → Consult the supplier
Mixing ratio of the pumped liquid too high → Consult the supplier
Temperature of the pumped liquid too high → Consult the supplier
Three-phase pump running in reverse → Swap two of the three phases

Insufficient discharge or cannot pump water

Operating head too high, resulting in insufficient water → Select a suitable pump and replace
Head loss too large → Select a suitable pump and replace
Three-phase pump running in reverse → Swap two of the three phases
Discharge pipe blocked → Straighten the discharge pipe so the water flows smoothly
Impeller worn → Replace the impeller
Strainer blocked → Clear the debris from the strainer

Severe vibration

Impeller unevenly worn → Replace the impeller
Running in reverse → Swap two of the three phases
Bearing defective → Replace
Too much air drawn in while pumping → Review the installation of the pump

Electric leakage when touching the pump

Insulation deterioration causing leakage → Stop using it and repair