WQK(V) Sewage Submersible Pump

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Payment Terms:: TT OR LC

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Packaging & Delivery

Packaging Detail:	Wooden packaging
Delivery Detail:	Within 20days after receipt of your order payment

Specifications

1.Submersion depth 5m
2.Head up to 35m
3.Flow rate up to 1800L/min
4.Passage of suspended solid up to 35mm

Range of Performance

Flow rate up to 1800L/min(108m3/h)
Head up to 35m

Application and Installation
They are recommended for draining dirty water and sewage in the domestic and civil sectors. Being equipped with a single-channel impeller, they are allowed to pump liquids containing suspended solid bodies with dimensions up to 35 mm and short fibres. They are ideal for pumping drainage water, sewage or waste water for a single dwelling, and for clearing surface or nuisance water. These pumps are outstanding in their reliability in fixed installations with automatic operation.

Operating Conditions

Submersion depth 5m
Liquid temperature up to +40oC
Ambient temperature up to +40oC
Max. Working pressure: 6 bar
Passage of suspended solid up to 35mm

Structure Feature

Pump body: Cast iron
Motor bracket: Cast iron
Impeller: Cast iron
Motor shaft: SS 420 or CS 45#
Mechanical seal: Ceramic - Graphite, Silicon carbide-Carbide alloy
Electric motor: Single-phase 220V - 50Hz with capacitor and thermal overload protector, three phases
380V -50Hz, Voltage fluctuation for 10% more or less is allowed and other voltage for 60Hz is also available.
Insulation: Class E
Protection: IPX8

Q: Troubleshooting of diaphragm pump: The ratio of flow to water weight at a specific weight of --68F. 68F water has a specific gravity of 1Static suction head - the vertical distance from the liquid level to the central line of the pump. The pump shall be above the level of the liquid.Vapor pressure the pressure of all the steam on the free surface of the liquid. In any pump operating system, the operating pressure shall not be lower than the vapor pressure, otherwise the steam will be partially or completely cut off into the pump fluid. Viscosity - because of the presence of friction in the fluid, the property of viscosity gives the fluid resistance to flow.Water hammer action -Water hammer is a sudden power failure, or in the valve closed too fast, due to pressure, flow of inertia, produce water shock waves, like hammer hammer, so called water hammer. The force produced by the flow of water shock waves can sometimes be very large, thereby damaging the valves and pumps. Water hammer effect refers to the inside of the water pipe, the pipe wall is smooth, flow freely. When the opening of the valve suddenly closes, the flow of water to the valve and the tube wall, mainly the valve, will produce a pressure. As the pipe wall is smooth, the subsequent water flow in the role of inertia, the fastest reach the maximum and damage, which is the water conservancy "water hammer effect", that is, "positive water hammer.". This factor should be taken into consideration in the construction of water conservancy pipelines. On the contrary, the valve closed in a sudden opening, it will produce water hammer, called negative water hammer, but also a certain destructive power, but not the former big.. Causes and treatment methods of common failures of diaphragm pumps:

Q: What are the important parameters of the pump?: Mass flow is expressed in Qm units: t/h, kg/s, etc.The relation between mass flow and volume flow is:Qm= P QIn the p - type liquid density (kg/m3, t/m3), room temperature water P =1000kg/m3.Lift H

Q: The difference between diaphragm pumps, vacuum pumps and centrifugal pumps: The function of vacuum pump is to make vacuum, which has many kinds of structure, such as centrifugal, diaphragm (diaphragm), piston, liquid ring, rotary plate, jet type...................

Q: Why can't the inlet of centrifugal pump be negative pressure?: Therefore, the centrifugal pump inlet pressure can be negative, and negative number, should be used to pump cavitation margin and liquid saturated steam pressure parameters to specific calculation. Sometimes, the liquid saturated steam conveying pressure is very high, such as the 9 m water column, then the minimum pressure of the pump inlet should be equal to 4+9=13 meters, the atmospheric pressure is higher than 3 meters, not only for negative pressure, even higher than the atmospheric pressure to work properly.

Q: Concrete pump 125 pipe wall thickness: Concrete pump diameter 125mm, pipe wall thickness is generally 4mm, also have 4.25mm, 4.5mm, 4.75mm, need to be in accordance with the rules of transport.

Q: Brief description of centrifugal pump on / off operation: (3) check whether the turning rotor is easy and flexible, check the pump body is clang or friction sound.(4) the protective cover is installed, and the shield contact.(5) clean the pump frame and do a good job of sanitation.(6) open the inlet valve, make the liquid full of pump body, open the vent valve, clean the air and close it. If the hot oil pump, it is not allowed to open the air valve exhaust, to prevent hot oil channeling spontaneous combustion, if there is a dedicated vent pipes and tanks, you can vent the pipe line air and cold oil.(7) the hot oil pump should be preheated slowly before starting. Especially in winter, the pump body and the pipe should be preheated at the same time, so that the temperature difference between the pump body and the conveying medium is below 50 centigrade.(8) the oil must be sufficiently dehydrated before being introduced into the oil pump.

Q: What does centrifugal pump mean horizontally?: Centrifugal pump: centrifugal pump is a centrifugal force on the impeller rotates to transport liquid pump. Centrifugal pumps use the impeller to rotate and cause centrifugal motion of the water to work. The pump before starting to pump shell and the water pipe filled with water, and then start the motor, the pump shaft to drive the impeller and water do high-speed rotation, centrifugal water movement, was thrown to the outer edge of the impeller, the pressure water pipeline flow through the volute pump into the pump shell.

Q: What do you mean by the self coupling device on the pump?: Overview of GAK self coupling device:The utility model relates to a GAK self coupling device, which is an automatic butt joint between a water outlet flange of a submersible electric pump and a water outlet pipe system.In the above additional coupling flange and the water outlet pipe seat inlet flange with a pair of wedge card, under the additional coupling flange and the water outlet pipe seat inlet flange and a pair of wedge cards in a wedge seat below the outlet pipe inlet flange card is made of elastic steel plate is fixed on the lower side of the seat pipe inlet flange. When the submersible pump water falling from above, Kaxianka additional coupling flange at the top of the wedge wedge and seat card outlet pipe above the inlet flange together, in the role of the dignity of the pump and submersible inclined wedge clamp, two flange will be put together in a pair of wedge under additional coupling flange and the water outlet pipe seat inlet flange the card will be in the elastic plate under the action of automatic card together. The utility model can solve the problem that a large amount of water leakage between the two flanges of the coupling is saved when the automatic installation and disassembly of the electric submersible pump is convenient, thereby saving energy.

Q: What flowmeter is installed after the pneumatic diaphragm pump?: The pressure decreases, the diaphragm moves slowly, and the flow decreases.This is not particularly accurate, because the diaphragm is not a metering pump, but the approximate flow can still be controlled.

Q: What is the series of pumps? What is the difference between a unipolar and a multilevel? What is the meaning of each "first class"?: You're talking about a centrifugal pump. His series says the number of slices of the impeller (excluding the wheel, that is, the wheel)

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