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Sep 18, 2021
In the process of converting mechanical energy into liquid energy, the centrifugal pump is accompanied by various losses, which are expressed by the corresponding efficiency. The internal loss of centrifugal pump can be divided into mechanical loss, volume loss and hydraulic loss, and the corresponding pump efficiency can also be divided into mechanical efficiency, volumetric efficiency and h...
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Sep 17, 2021
What is the function of the leakage reducing ring of the centrifugal pump? There is a rotating gap at the joint between the outer edge of the suction inlet of the centrifugal pump impeller and the inner wall of the pump shell, and there is a high and low pressure area on both sides of the gap. If the clearance is too large, the high-pressure water in the pump housing will leak into the l...
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Sep 14, 2021
When the stainless steel centrifugal pump starts up, if there is gas in the pump, because the density of the air is small, the centrifugal force produced is also relatively small, at this time the center of the centrifugal impeller can only produce a relatively small negative pressure, and can not absorb the liquid, it will produce the centrifugal impeller idling, destroying the stainless steel ce...
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Sep 13, 2021
There are many classifications of centrifugal pumps, which are divided according to different structural characteristics. The specific classification of centrifugal pumps is as follows: Classify according to the number of working impellers. 1. Single-stage pump: that is, there is only one impeller on the pump shaft. 2. Multi-stage pump: that is, there are two or more impellers on the pump shaft, a...
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Sep 01, 2021
For the transportation of acid and alkali liquids, when users usually choose stainless steel pumps, they do not know how to deal with the water hammer produced in the process of use. Stainless steel pumps are generally divided into stainless steel centrifugal pumps and stainless steel magnetic pumps, with vertical and horizontal structures. Stainless steel has corrosion resistance, so how is the w...
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Aug 30, 2021
Sulfuric acid, colorless oil liquid, has strong corrosiveness, relative density 1.84g/cm3, at 337C can dissolve with water in any proportion and release a large amount of heat energy, making the water boil. Sulfuric acid is heated to 290 ℃ and begins to release sulfur trioxide. If sulfuric acid leaks in the process of transportation, it is a headache for many chemical enterprises. T...
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Aug 28, 2021
When the pump is working, the liquid will produce vapors at the inlet of the impeller due to a certain vacuum pressure, and the vaporized bubbles will exfoliate the impeller and other metal surfaces under the impact movement of the liquid particles, thus destroying the impeller and other metals, at this time the vacuum pressure is called vaporization pressure, and the cavitation margin refers to t...
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Aug 27, 2021
Magnetic eddy current is a common phenomenon in magnetic pump. when the motor rotates the rotor through external magnetic field, the isolation sleeve is in a sinusoidal alternating magnetic field and induces eddy current on the cross section perpendicular to the magnetic force line, which is converted into heat, which is called eddy current heating. The eddy current heating of the magnetic pump wi...
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Jul 22, 2021
The corrosion-resistant centrifugal pump made by TEFLOW can be roughly divided into two kinds: metal pump and plastic pump. Today, we mainly introduce the material of plastic-lined centrifugal pump: the difference of PTFE,PFA,FEP,ETFE. (1)Teflon PTFE:PTFE (polytetrafluoroethylene) non-stick coating can be used continuously at 260C, with the highest temperature of 290C-300C, extremely low friction ...
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+86 18130251359
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teflowpumps@tlpumps.com
+86 18130251359