Multi-stage centrifugal pump

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Type DG: The pumps are suitable for pumping clean water without solid particles or other liquids whose physicochemical property is similar to that of clean water with the temperature range from -20℃~150℃.

Capacity : Q:6~540m2/h
Head : H:33~1056m

Construction: The pump is horizontally installed. The inlet and outlet are under the split surface and in the perpendicular direction with pump central shaft-line, during the course during the course of installation, you needn't to remove the motor and the pipes.
Type SLA is vertically installed the inlet and outlet at a same center line and the case and cover are in the perpendicular direction.
Bearing: Both end of the pump are rolling bearings (type 24SA_18, 16SA_90 could use the sleeve bearings)to support the rotor, the lubrication oil is dilute oil or grease.
Materials of tolerance: The material s of tolerance is cast iron or it can be changed into cast steel and bronze, but it should be signed in the order.

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Q:What are the advantages and disadvantages of the pump control system and valve control system in the hydraulic system?
Pump control system is generally used for closed systems, the flow of the oil pump changes to control the motor or cylinder actuator action. The utility model has the advantages that the principle is simple, and the power of the engine can be fully utilized. The disadvantage is that the calorific value of larger, relatively poor precision.
Q:No negative pressure water supply equipment, both the main pump and auxiliary pump, power is not the same
1) microcomputer frequency conversion control cabinet2) water pump unit3) current stabilizing compensator4) vacuum suppressor5) all kinds of pipe fittings, valves and so on
Q:Advantages and disadvantages of centrifugal pumps?
The uniform liquid no pulse phenomenon.(2) shortcomingsBefore running, the pump must be filled with liquid.For the supply of small flow, large pressure head inappropriate, inefficient and limited.Encountered imperfect design or operation is not at the time, such as milk, it is easy to produce foam, affecting the next process production.The installation is wrong. There will be "Qi tie" phenomenon.The efficiency is also lower than the reciprocating pump.The sources of knowledge are absolutely reliable!!!!
Q:Does the reservoir water heater press the booster pump (high marks)?
If insufficient pressure really, adding an automatic booster pump in the water inlet, is feasible. Home booster pump, a basic model, to sell the place to ask the next to know, generally 200 yuan or so, traffic 0.3-1.8, 90~150 watts on it. Do not buy too large, too much power, the water will also be too large, but the water heater will not be used.
Q:Does the control cabinet of the fire control pump need to be related to the fire control room?
The relationship is simple, the fire pump is pressurized water supply device, the control cabinet is the power supply for the fire pump, the regulator tank is to stabilize the pressure of the network management, reduce the pump frequently start device.
Q:How is the pump level of submersible sewage pump determined?
Generally as:The bottom elevation of sump sump plus 300 is the water level of pump stopThe top 300 of the sump top elevation is the pump water level
Q:What is the working pressure of the hydraulic pump in the hydraulic transmission system?
Generally speaking, for the fixed size, not limited equipment, the pressure can be selected lower, walking machinery heavy equipment pressure should be selected higher.If the load is selected, the working pressure is as follows:Load <5kN, working pressure <0.8~1MPa;Load 5~10kN, working pressure 1.5~2MPa;Load 10~20kN, working pressure 2.5~3MPa;Load 20~30kN, working pressure 3~4MPa;Load 30~50kN, working pressure 4~5MPa;Load 50kN, working pressure =5MPa;For example, the system work pressure of various machines is as follows:Grinder 0.8~2MPaModular machine tool 3~5MPaLongmen planer 2~8MPaBroaching machine 8~10MPa agricultural machinery, small construction machinery, construction machinery, hydraulic drilling machine 10~18MPa hydraulic machine, large and medium-sized excavators, heavy machinery, lifting transportation machinery 20~32MPa.
Q:Types and differences of pumps
Classification and working principle of pump by structureClassification of pumpsInvolved pump standard product types are also very much, a centrifugal pump, metering pump, screw pump, reciprocating pump, hydraulic pump, submersible pump, oil pump, water pump, pressure test pump, vortex pump, cryogenic pump, vacuum pump, roots pump, molecular pump, gear pump, mud pump, corrosion-resistant pump deep well pump, water pump, mixed flow pump, axial flow pump, boiler feedwater pump, liquid pump, injection pump, chemical pump, pump plugging and no leakage pump, plastic pump, fire pump and so on, there are many. Its name is divided according to some conventional classification methods such as pump vane pump volume, pump etc., some are divided by purpose such as sewage pump, pump and other health, some names are more random as diffusion pump, liquid nitrogen pump. As long as the production of this product, with standard requirements, through a certain application and approval procedures may produce a new The standard, but sometimes the content also has a repeated cross, quite. The domestic and foreign standards, the domestic standard is more than the number of foreign standards. In general, such as centrifugal pumps are widely used, the production history of the pump more standard (total standard centrifugal pump up to more than 100). As new standard pump leakage pump this rapid development is relatively small. This paper introduces the structure and working principle of the pump according to the classification of the
Q:Double floor sewage pump circuit diagram of a small problem
Question 3 when the water level is low, when the 1KA is connected, the pump will run depending on where your SS selector switch is located. Its left and right position, running pump and standby pump definition is different, left position is 1#, running 2# standby, right position is 2# running, 1# standby. Only inIn case the high level switch 2KA is connected, the standby pump may work at the same time.
Q:What is pump suction work?
Pump is mainly used to transport liquid, including water, oil, acid and alkali liquid, emulsion, suspension emulsion and liquid metal, etc., also can transport liquid, gas mixture and liquid containing suspended solids.

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