Sewage pump: WQK/QG sewage pump with stainless steel blade cutting device

• Sewage pump, sewage pump with cutting device, submersible sewage pump

  I. Overview
  WQKSewage pump with cutting deviceThe electric pump has a particularly strong ability to discharge pollutants, with good cutting performance. It can chop up impurities such as long fibers, plastics, paper, belts, cloth strips, straw, ropes, etc. in the sewage and discharge them. Using the best * method, it is designed with the most reasonable hydraulic characteristics, so that the electric pump can operate at full head. The best combination of excellent dry motor and water pump makes the total efficiency of the electric pump reach the same level as the ASS belt cutting device series products of West German ABS company. The electric pump adopts high-quality hard alloy, double end mechanical seal and skeleton oil seal assembly surface, which should not exceed 1/2 of the height of the motor, and the temperature of the pumped pollutants should not exceed 40 ℃.

  The WQX series submersible sewage pump is mainly used for discharging domestic wastewater, sewage, human feces and urine, as well as solid suspended solids and non corrosive media containing short fiber paper scraps, sawdust, starch, sediment, ore particles, etc. The temperature of the pumped liquid does not exceed 40 ℃, the density does not exceed 1200kg/m3, and the pH value is about 9. This electric pump adopts a double end mechanical seal and a rotating impeller. The impeller is made of stainless steel, wear-resistant, non clogging, non winding, and has the advantages of small volume, compact structure, and easy portability.

  2、 Scope of application
  WQK/QGSewage pump with cutting deviceMainly used for engineering wastewater and domestic wastewater.
  For example:
  (1) Used for construction sites, engineering foundation construction, municipal facilities, and water treatment plants.
  (2) Sewage discharge from the basement of various high-rise buildings, civil air defense pits, subways, and other underground structures.
  (3) Sewage treatment and circulating water transportation for small and medium-sized enterprises.
  (4) The pumping of slag and slurry from factories and mining enterprises such as food, paper, brewing, steel and non-ferrous metals, leather, textile, pharmaceutical, cement plants, etc.
  (5) Chicken farms, pig farms, various animal husbandry industries, fish ponds used for pumping and cleaning ponds, oxygenation, septic tanks, and other occasions for the transportation of human and animal manure and urine.
  Note: wqkSewage pump with cutting deviceThe main performance and data are the same as those of the wqk/qg type, except for the absence of a cutting device.

  3、 The significance of the model of the sewage pump with cutting device

  

  4、 Precautions for use

  (1) Before using the electric pump, it is necessary to first check whether the cables are damaged. When handling and installing the water pump, cut iron to pull or damage the cables to prevent accidents caused by cable breakage and water leakage. If the cable cracks hard, it should be replaced immediately. And use a megohmmeter to check if the insulation resistance of the electric pump is normal (the insulation resistance should not be less than 1 megohm)
  (2) Identify the grounding wire (usually yellow or green or marked with a grounding symbol), and follow the prescribed procedures to properly connect the grounding wire. Our factory's grounding wire is equipped with a grounding sign.
  (3) Choose appropriate protectors (such as leakage protectors, air switches, phase failure overcurrent protectors, etc.) and do not directly connect them with knife switches.
  (4) Connect the power cord according to the standard, test the power supply, check if the electric pump is running normally, and determine if the steering is correct. If the steering is incorrect, swap any two of the three power cords (note that the running time should not exceed half a minute).
  (5) Install the water outlet connector and water outlet hose (or iron pipe), tie a rope on the handle of the electric pump (cable cannot replace the function of the hanging rope), place the electric pump into the pump to be pumped, connect the power supply, and it can be used.
  (6) In order to ensure personal safety, it is strictly prohibited to install water operations (such as moving, inspecting, troubleshooting, etc.) near the electric pump during the operation of the electric pump. Contact with the electric pump is necessary to prevent accidents caused by electric pump leakage!
  (7) It is strictly prohibited to expose the entire electric pump to the water surface during operation (or for a short period of time). The "on" and "off" of the electric pump should not be too frequent to prevent motor overheating and damage
  (8) Pumping liquids with high sand content for WQK/QGSewage pump with cutting deviceThe overcurrent components have significant wear and tear, so we use our factory's cyclone sewage submersible electric pump products.
  (9) If WQK/QG is foundSewage pump with cutting deviceDuring operation, if there are abnormal phenomena such as non rotation, tripping of the protector, or blown fuses, the power should be immediately cut off and the wiring of the power protector should be checked for any problems
  If these external devices are all normal, it may be a fault with the electric pump, and it should not be continued to be used to avoid accidents!

  Cause and solution of malfunction

  Fault phenomenon	cause of failure	solution
  The electric pump is not running	The power cord is not properly connected	Connect the power supply according to standard requirements
  	One phase of the power supply is not powered on	Check the fuse and power supply, connect the three-phase power supply
  	Impeller and chassis stuck	Adjust the chassis clearance between 0.2-0.5mm so that the impeller can be easily moved by hand
  	Electric pump burnt out	Repair the motor again
  	Damaged protective device	repair or replace
  Small water output or insufficient head	The clearance between the impeller and the chassis is too large	Adjust the gap to the normal range (0.2-0.5mm)
  	The impeller is severely worn out	Replace the impeller
  	The motor speed cannot reach the normal speed	Replace the motor rotor or repair the voltage
  	The power supply voltage is too low	Adjust the voltage to the rated voltage
  		Reduce the voltage drop on the power leads of large cross-section cables (in cases where the power leads are too long)
  	Reverse rotation of electric pump	Swap the two power connectors to make the electric pump rotate forward
  Impurities cannot be cut or Poor cutting effect	The clearance between the impeller and the chassis is too large	Adjust the gap to the normal range (0.2-0.5mm)
  	Cutting blade wear becomes pure	Replace the impeller and chassis
  Protector is disconnected or Connected and then disconnected	Improper selection or damage of protector	Re select a suitable protector (the rated current of the protector must match the rated current of the electric pump)
  	The insulation resistance of the power motor is too low (less than 0.5M Ω) due to moisture or water leakage	Remove the motor for drying. If the mechanical seal, sealing ring, or cable sealing head is damaged and leaks water, the damaged sealing components should be replaced
  	Short circuit between turns of motor stator coil	Replace or repair the motor again
  	Two phase operation of motor	Check the power supply or connectors, repair them
  	The power supply voltage is too low	Restore the voltage to normal value
  	The electric pump is stuck by impurities	Clean up impurities
  	Excessive viscosity or sand content in water can cause overload operation of the electric pump	Reduce viscosity or sand content
  	bearing damage	replace the bearing

  model	traffic m3/h	head （m）	Diameter of outlet piping mm	power kw	speed （r/min）
  WQK8-12QG	8	12	32	0.75	2900
  WQK20-7QG	20	7	50	0.75	1450
  WQK10-12QG	10	12	40	1.1	1450
  WQK8-22QG	8	22	25	1.1	1450
  WQK20-15QG	20	15	50	1.5	1450
  WQK15-30QG	15	30	40	2.2	1450
  WQK20-20QG	20	20	50	2.2	1450
  WQK25-15QG	25	15	65	2.2	1450
  WQK40-7QG	40	7	80	2.2	1450
  WQK30-15QG	30	15	80	3	2900
  WQK25-30QG	25	30	65	4	2900
  WQK40-15QG	40	15	80	4	1450
  WQK85-10QG	82	10	100	4	1450
  WQK65-25QG	65	25	80	7.5	2900
  WQK80-20QG	80	20	80	7.5	1450
  WQK100-15QG	100	15	100	7.5	1450
  WQK100-25QG	100	25	100	11	1450
  WQK115-15QG	115	15	125	15	1450
  WQK180-15QG	180	15	150	15	1450

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