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6 Reasons Why Acid-resistant Pump Mechanical Seal Fail？

6 Reasons Why Acid-resistant Pump Mechanical Seal Fail？

Feb 25, 2022

02-252022

Sudden leakage Due to the following reasons, chemical acid-resistant pump seals will have sudden leakage.
    1. The acid-resistant pump vibrates strongly and evacuation destroys the friction pair.
    2. Acid-resistant spring breaks.
    3. The acid-resistant anti-rotation pin falls off or the transmission pin is broken and loses its function.
    4. The failure of the acid-resistant circulation protection system causes the dynamic and static rings to undergo sudden changes in cold and heat, resulting in deformation of the sealing surface or cracks.
    5. Due to the temperature change, the medium around the friction pair condenses and crystallizes, which affects the acid-resistant seal.
How to Calculate the Efficiency of Chemical Resistant Pumps？

How to Calculate the Efficiency of Chemical Resistant Pumps？

Feb 23, 2022

02-232022

The efficiency of the chemical resistant pump refers to the ratio of the effective power of the acid and alkali resistant pump to the shaft power. η=Pe/p The power of the chemical resistant pump usually refers to the input power, that is, the power transmitted by the prime mover to the pump shaft, so it is also called the shaft power, which is represented by P. The effective power is the product of the lift of the chemical resistant pump, the mass flow rate and the acceleration of gravity. Pe=ρg QH (W) or Pe=γQH/1000 (KW) ρ: Density of pumped liquid (kg/m3)
How to Choose the Mechanical Seal of the Chemical Electroplating Pump?

How to Choose the Mechanical Seal of the Chemical Electroplating Pump?

Feb 21, 2022

02-212022

No leakage is the eternal pursuit of chemical electroplating equipment. It is this requirement that leads to the increasing application of electroplating magnetic pumps. However, there is still a long way to go to achieve no leakage, such as the service life of electroplated magnetic pump sealing sleeve, the pitting corrosion of materials, the reliability of static seal, and so on.
The Working Principle of PVDF Self-priming Pump

The Working Principle of PVDF Self-priming Pump

Feb 19, 2022

02-192022

PVDF self-priming pump is a common chemical pump. Pumps made of this material are often used for liquid transmission and circulation in various industries such as electroplating, pickling, and PCB. So, how does PVDF self-priming pump work? This article details Answer for you.
What is the Difference Between a Single-stage Pump and a Multi-stage Pump? an Article Makes It Clear

What is the Difference Between a Single-stage Pump and a Multi-stage Pump? an Article Makes It Clear

Feb 18, 2022

02-182022

In the field of fluid transmission, it will involve the use of a variety of pumps, in which single-stage pumps and multi-stage pumps are particularly common. What is the difference between a single-stage pump and a multi-stage pump? This article will answer this for you.
How to Maintain the PVDF Magnetic Pump?

How to Maintain the PVDF Magnetic Pump?

Feb 16, 2022

02-162022

Maintenance method of PVDF magnetic pump:1. Requirements after the PVDF magnetic pump stops running:①After the PVDF magnetic pump stops running, the inlet valve of the pump should be closed, and the valves of the auxiliary system should be closed in turn after the pump cools down.② The PVDF high temperature pump should be stopped according to the provisions of the equipment technical documents. After stopping, it should be cranked for half a circle every 20-30min until the temperature of the pump body drops to 50℃.
Chemical Pump Correct Operation Guide

Chemical Pump Correct Operation Guide

Feb 14, 2022

02-142022

1. The disassembly of the mechanical seal must be very careful, and it is not allowed to strike with iron objects, hand hammers, etc., so as not to damage the sealing surfaces of the dynamic and static rings, thus affecting the sealing performance.
2. The general chemical centrifugal pump mechanical seal is only suitable for use in a clean medium without suspended particles. Therefore, the pipeline and storage tank should be carefully rinsed to prevent solid impurities from entering the end face of the mechanical seal and causing the seal to fail.
3. If the medium is easy to crystallize, use the mechanical seal to pay attention to frequent flushing. Before restarting after stopping, dissolve or clean the crystals on the mechanical seal.
4. Pay attention to eliminating deviations during assembly. When tightening screws, tighten them evenly to avoid deflection and failure of the mechanical seal.
5. If there is dirt that cannot be removed, try to remove the dirt, rinse it clean, and then disassemble it to avoid damage to the sealing element.
6. For mechanical seals with external flushing, the flushing fluid should be turned on before starting, so that the sealing cavity is filled with sealing fluid. When parking, stop the pump first, and then turn off the seal flushing fluid.
Chemical Self-priming Pumps Are Mainly Used in Which Fields?

Chemical Self-priming Pumps Are Mainly Used in Which Fields?

Feb 12, 2022

02-122022

The chemical self-priming pumps supplied by sewage treatment equipment manufacturers are mainly suitable for those ranges:
1. The chemical self-priming pump is suitable for urban environmental protection, construction, fire protection, chemical industry, pharmaceuticals, dyes, printing and dyeing, brewing, electricity, electroplating, papermaking, industrial and mining washing, equipment cooling, etc.
Nor Can Covid-19 Stop the Development of China's Chemical Pump Industry

Nor Can Covid-19 Stop the Development of China's Chemical Pump Industry

Feb 11, 2022

02-112022

Experts predict that in the next five years, China's pump manufacturing industry will continue to maintain an increasing growth rate year by year, especially in the field of chemical pumps, with an average annual growth rate of 25%.
How to use chemical resistant pump correctly?

How to use chemical resistant pump correctly?

Feb 10, 2022

02-102022

Preparation before starting: 1 Test whether the rotation direction of the chemical resistant pump motor is correct. From the top of the chemical resistant pump motor, it rotates clockwise. The test time should be short to avoid dry wear of the mechanical seal. 2. Open the exhaust valve of the chemical resistant pump and let the liquid fill the whole pump body. When it is full, close the exhaust valve of the chemical resistant pump. 3. Check whether all parts of the chemical resistant pump are normal. 4. Turn by hand to make the lubricating liquid enter the mechanical seal end face of chemical resistant pump. 5. The high-temperature type should be preheated in advance with a heating rate of 50. C / hour to ensure uniform heating.
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Bruce Lee