WQD WQ Submersible Sewage Pump

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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1，Packaging & Delivery

Packaging Detail:	carton or according to custorms' demands
Delivery Detail:	20-25 days after received 30% deposit

2, Specifications

1.CE,GS,ROHS,ISO9001.CC
2.With aluminium pump boby,anti-corrosion
3.sewage pump
4.dirty water pump
5.water pump

3,product introduction

WQD WQ type submersible sewage pump/dirty water pump consists of pump,mechanical seal and motor.Pump is at the bottom part of motor pump,which adopt centifugal impeller. Motor is at the upper part of motor pump and is a single-phase asynchronous motor or three-phase motor.Mechanicalk seal is between pump and motor,and it'sa kind of double end mechanical seal."o"rings are applied to all static joints of the submersible pump.Inner-installed protector prevents the pujmp from damages due to abnormal power,colg and overload etc.

4, working Condition

1.Transport liquid water temperature is less than +40°C

2.The PH value of the media is between 6.5to 8.5

3.The volume per centage of impurity in the medium is less than 0.1%,grain smaller than 0.2mm

4.Pump should be rated near lift the appropriate range,submersible pump head can not be too low,below the stiplated 80%of head easily lead to thermal protector,so that pumps stopped running,and even cause electrical damage.

5.Diving depth of no more than 5m.

Q: What are the meanings of the vacuum pump, the front pump and the main pump?: In operation, the main gas extraction limit vacuum is achieved by the main pump, so we call it the main pump, which plays the main role of the pumpThe front pump is the pump that needs to be opened ahead of the main pump. It is called the pump before the main pump and the pump running the main pumpIf you don't understand, look at your signature and ask again

Q: Must the water pump in the tank be all soaked in water?: Usually you have to soak it all in the water. If you don't want to put it in the water, you can buy an amphibious pump. At most, you can expose it

Q: What is the minimum continuous flow of a pump?: At'-- the allowable temperature rise of pumping medium,C- pumping medium specific heat, kj/ (kg DEG C);Ho- off dead center lift, M.Minimum continuous flow minimum continuous stable flow and minimum continuous thermal flow and the maximum value in the selection, or use the pump process, the minimum continuous flow process requirements must be greater than the minimum flow rate of the pump, otherwise it will cause the pump cavitation, vibration and noise, so that the pump parts damaged. If the minimum continuous flow the pump can not meet the minimum requirement's process, can install the bypass reflux device or reflux system in the pump pipeline, to ensure that the minimum continuous flow pump.

Q: Fire control center manually start the fire pump directly, multi line control, called straight up line NHKVV-7*1.5, my understanding is: straight line from fire control center: Multi line linkage NHBVR-4*1.5 is a positive pressure blower and smoke exhaust machine fire fighting equipment

Q: What are the starting and stopping procedures for centrifugal pumps?: Before using the centrifugal pump, the operation instructions of the centrifugal pump shall be read carefully and the specific operation procedures shall be understood so as to make proper use of the centrifugal pump products. The first step is the operation of centrifugal pump inlet valve of centrifugal pump centrifugal pump for all open cavity filled with liquid, close the outlet valve, start the motor, the motor speed is normal, can gradually open the outlet valve, to adjust to the desired condition. Pay attention to self suction centrifugal pump starts to open the exhaust valve, outlet valve should be opened quickly in the normal operation of the motor, to prevent air inlet pipe off caused by cavitation phenomenon produces centrifugal pump, centrifugal pump vibration phenomenon leads to noise of the smoke is not on the water.

Q: Why does the centrifugal pump start and close first when the outlet valve is closed?: The contact is burned out, the bond and so on the accident, therefore closes the outlet valve, starts the electric machinery, at this time the electric machinery belongs to the no-load current movement, greatly reduces the big current impact

Q: Working principle and structure of external gear pump: The principle of the gear pump, gear pump structure consists of two gear mesh together with each other, and composed of pumps known as gear pumps. It relies on the gear teeth meshing space change in volume to transport the liquid, it belongs to the rotary pump, also can be considered as a volume pump. There are many kinds of gear pumps. According to the meshing mode, it can be divided into external gear pump and internal gear pump. According to the tooth shape of gear, it can be divided into positive gear pump, helical gear pump and herringbone gear pump.

Q: Harm of air pump and pump: Centrifugal pump situationEmpty pump is divided into two kinds, if there is no liquid, then it will cause the mechanical seal of the pump to overheat, wear and even die

Q: Hydraulic pump displacement refers to the pump shaft what?: Displacement of the hydraulic pump refers to the axis of each turn, the volume discharged, called displacement, the unit is ml (ML),

Q: Attention should be paid to the use of pumps?: To carefully check whether there is a crack impeller, impeller fixed in the bearings are loose, if there are cracks and loose, hungry phenomenon should be promptly repaired, if the pump impeller above the soil should also be cleaned

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