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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.s
What is the liquid pump? What are their categories? What are their strengths and weaknesses?
- The air driven liquid pump adopts compressed air driving method, and has the following advantages:The pressure can be adjusted by manual pressure control valve or air control valveIt is driven by air and is especially suitable for explosion protection applicationsAble to achieve pre-set final pressureAutomatic pressure relief by pumpLong term conservation without consuming energyWhen holding pressure, medium will not overheatThe utility model has the advantages of convenient installation and low maintenance cost, and only needs to connect the gas source, the inlet pipeline and the pressure pipelineReliable operation, low maintenance cost and little noise at the time of operations
How about the depreciation of vacuum pumps?
- (a) housing and buildings for 20 years;(two) aircraft, trains, ships, machinery, machinery and other production equipment for 10 years;s
Fire pump control cabinet There are 6 pumps, two indoor fire hydrant pumps, two spray pumps, and two outdoor pumps
- Spray pump in addition to remote direct Kai, there are modules to start function, that is, on the cabinet to add control module, bus linkage pump, in addition to the pressure switch, directly pumping function, a total of three functions.s
Does the reservoir water heater press the booster pump (high marks)?
- 60 liters of water storage should be able to drive two bathrooms at the same time bath! Water storage water heater generally does not need booster pump, as long as there is a little pressure, the water heater is filled with water, as long as the tap water can do. You can turn off the hot water valve and see only the amount of water in the cold water. If hot water is much smaller than cold water, it is the reason for the heater. Can you check the water mixer is normal, the one-way valve is installed in reverse.s
The function of centrifugal pump
- The basic structure of the centrifugal pump is composed of six parts, namely: impeller, pump body, pump shaft, bearing, sealing ring, stuffing box.1, the impeller is the core part of the centrifugal pump, it is high speed, large output, the impeller blade and play a major role in the impeller before assembly, through the static equilibrium experiment. The inside and outside surfaces of the impeller are required to be smooth, so as to reduce the friction loss of the water flow.s
Types and differences of pumps
- (I) volumetric typeClassification reciprocating rotary typeThe basic principle of reciprocating action by the piston in the cylinder in the cylinder volume changes again, with the suction and discharge of fluid in the shell or the rotor rotating member rotates, the volume of work between rotor and casing changes to the suction and discharge fluid, such as piston pump gear pump, screw pump(two) blade type;The main structure of vane pumps and fans is rotary, bladed impellers and stationary housings that rotate fluid through the impeller to do work, thereby enabling fluids to obtain energys
5 floor water pressure is too low, what kind of water pump is better?
- Pipe blockage, leaks, or throttling devices are not opened. This can be tested on a pipe with a pressure gauge;Water pump is equipped with power source, power or speed does not match, check the pump and power end nameplate, power end of the pump power is generally 1.1.5 times;s
Introduction to deep groove ball bearings
- It has been recognized that steel coils are now widely used in many construction fields, such as highway construction, office building construction and other places. Steel coils ar...
Briefly know the principles of pumps diagram
- Pumps diagram mean the metering pumps which have the electronic power and control. Currently, pumps diagram are used in many places, including aquariums, industrial places and so o...
Mechanisms of the barrel pumps
- Barrel pumps are also dosing pumps, while they have different mechanisms and special functions. barrel pumps have their own places in the market now, we can see the mechanisms of t...
Tell us what is metal forming
- The metal forming of metal products are dependent on the usages of metal products, properties of molding mud materials, dimensions of molding metal products and molding devices. Hi...
Tell us the cost of metalworking tools
- As we all know, metalworking tools have a wide application in our real life. They are now playing an increasingly important role in different fields. metalworking tools can be used...