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Common sense of mechanical seal selection and use Mechanical seal is one of the precision and complex mechanical basic elements, and is the key component of various mechanical seal pumps, reaction synthesis kettles, turbine compressors, submersible motors and other equipment. Its sealing performance and service life depend on many factors, such as model selection, machine accuracy, correct installation and use, etc. 1、 Selection method Mechanical density
Published on: March 21, 2023 Clicks: 61
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Precautions during installation 1. Pay great attention to avoid installation deviation during installation (1). Tighten the gland after alignment of the coupling. The bolts should be evenly supported to prevent the end face of the gland from deflecting. Check each point with a feeler gauge, and the error should not be greater than 0.05 mm. (2) Check the fit clearance (i.e. concentricity) between the gland and the outer diameter of the shaft or shaft sleeve, and ensure that it is even all around. Use a feeler gauge
Published on: February 24, 2023 Clicks: 79
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What role does the pump mechanical seal manufacturer play in the pressure vessel? Because of its wide source of materials, convenient processing, low price, simple structure, convenient maintenance and other characteristics, packing seals are often used in occasions where the sealing requirements are not strict. However, the corrosion resistance, heat resistance, lubricity, impermeability and other aspects cannot fully meet the needs of chemical production, and mechanical seals are gradually replacing them. Mechanical seal is also called end
Published on: January 14, 2023 Clicks: 123
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Common materials of pump mechanical seal manufacturers and selection principles Selection method of mechanical seal: according to different working conditions and media properties, mechanical seals include high temperature and low temperature resistant mechanical seals, high pressure and corrosion resistant mechanical seals, granular media resistant mechanical seals and mechanical seals suitable for vaporizing light hydrocarbon media, Mechanical seals with different structure types and materials shall be selected according to different uses.
Published on: December 29, 2022 Clicks: 126
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The principle and requirements of the kettle mechanical seal manufacturer refer to the sealing device formed by two sealing elements sticking together and rotating relative to each other on a smooth and straight surface perpendicular to the axis. It is usually composed of static ring, dynamic ring, spring loading device (including push ring and spring box), auxiliary sealing ring (dynamic ring sealing ring, static ring sealing ring), etc, Anti rotation sleeve
Released on: December 8, 2022-12 Number of hits: 134
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There are three main reasons for the seal function failure of the kettle mechanical seal (1) When the sealing surface is opened to repair the mechanical seal, 85% of the seal failure is not caused by wear, but has leaked before wear. As soon as the sealing surface is opened, solid particles in the medium enter the sealing surface under the action of liquid pressure. After the sealing surface is closed, these solid particles are embedded in the soft ring (through
Published on: November 30, 2022-10 Number of hits: 68
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The mechanical seal manufacturer shall comply with and use the technical requirements. 1. The radial runout of the main shaft for installing the seal shall be ≤ 0.04mm (0.06mm), and the axial displacement shall be ≤ 0.3mm. The corresponding parts of the shaft and stationary ring seat shall be installed and processed according to the standard requirements. 2. All parts and components of the seal chamber, shaft and mechanical seal shall be cleaned and free of pollution, bump, scratch, especially impurities and dust
Published on: November 29, 2022-10 Number of hits: 70
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The installation method, steps and installation precautions of mechanical seals for various types of pump kettles Chemical pumps, centrifugal pumps, multistage pumps, self-priming pumps and various sewage pump products all use mechanical seals. The mechanical seal of the water pump is a vulnerable part. In order to ensure the normal operation of the water pump, the mechanical seal is generally replaced once every three months. The structure and principle of the mechanical seal for pumps are generally divided into two parts: dynamic ring
Published on: November 17, 2022-17 Number of hits: 106
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The basic structure, functions and requirements of the mechanical seal manufacturer 1. The end face sealing pair (static ring, dynamic ring) of the mechanical seal makes the sealing face closely fit to prevent medium leakage. It requires that the static ring and the dynamic ring have good wear resistance. The dynamic ring can move flexibly in the axial direction, automatically compensate the wear of the sealing surface, and make it fit well with the static ring; The static ring is floating and buffering
Published on: November 16, 2022-16 Number of hits: 84
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Explanation on the purpose of flushing scheme of mechanical seal for kettle Generally, mechanical seal (especially cartridge mechanical seal) can be equipped with auxiliary system, but the most suitable flushing scheme should be selected according to different working conditions. For flushing, it is to directly inject liquid into the high-pressure side of double end mechanical seal or single end mechanical seal. Generally, pumps shall be flushed, especially
Published on: September 30, 2022 Clicks: 92
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Installation steps of mechanical seal for enamel reaction kettle: 1. Preparation stage of mechanical seal for glass lined reaction kettle: loosen and take out the static ring gland of mechanical seal water jacket, check and wipe the static ring, gasket and porcelain surface; After the stationary ring is sleeved with gasket, place the grinding surface upward into the water jacket; Fix the stationary ring with the stationary ring gland, and put on the bolts but do not tighten them, so as to ensure that the stationary ring can move and facilitate the later stage
Published on: September 29, 2022 Clicks: 130
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Precautions for the use of mechanical seal manufacturer's equipment The quality of mechanical seal is very high, because it is a kind of oil seal equipment for rotating machinery. It is stuck and relatively smooth on one or more pairs of end faces perpendicular to the rotating axis under the action of fluid pump mechanical seal pressure and compensation arrangement elasticity (or magnetic force) and the cooperation of auxiliary seals
Published on: September 20, 2022 Clicks: 71
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Precautions for kettle mechanical seal when checking the hard ring surface The failure of the rubber ring is related to the way of use. Usually, high pressure is one of the reasons for the failure of the imported pressed O-ring. When it is found that the O-ring becomes rectangular or the ring becomes hard, the compression amount needs to be adjusted, otherwise it will become hot. (1) Hot cracking; (2) Ceramic ring fracture; (3) Nick; (4) The coating falls off. ceramics
Published on: September 19, 2022 Clicks: 69
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Cause analysis and treatment measures for leakage of mechanical seal for kettle In centrifugal pump and reaction kettle, the seal between rotating pump shaft and fixed shell is called shaft seal device. At present, centrifugal pumps and reactors are generally used for sealing and mechanical sealing. Mechanical seals are widely used because of their low leakage, long service life, low power loss, no need for frequent maintenance and little impact on the environment. Mechanical density
Published on: August 28, 2022 Clicks: 193
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The wear amount and service life of the mechanical seal manufacturer In the mechanical seal, the main wear part is the end face of the seal friction pair, because the wear amount of the seal end face is not large under normal working conditions, such as the graphite friction pair with a balance coefficient of 0.75, the wear amount per hour in water and oil is about 0.1 μ m, that is, the wear amount is about 1 mm after 10000 hours of continuous operation,
Published on: August 27, 2022 Clicks: 59
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