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The mechanical seal manufacturer introduces the causes and analysis of common failure seal failure (I) The seal failure mainly has the following three reasons: 1. When the sealing surface is opened and the mechanical seal is repaired, 85% of the seal failure is not caused by wear, but has leaked before wear. When the sealing surface is opened, solid particles in the medium enter under the action of liquid pressure
Published on: August 17, 2019 Clicks: 125
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Mechanical seal manufacturers have several structures to enhance lubrication. 1. End face eccentricity: for general mechanical seals, the center of the moving ring, the center of the stationary ring and the center line of the shaft are all in a straight line. If the end face center of a ring in the moving ring or the stationary ring is made to be offset from the center line of the shaft by a certain distance, the ring can constantly bring lubricating fluid to the sliding surface for lubrication when rotating. It should be noted that
Published on: August 10, 2019 Clicks: 110
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The mechanical seal manufacturer's introduction principle and requirements The mechanical seal refers to a sealing device formed by two sealing elements sticking together on a smooth and straight surface perpendicular to the axis and rotating relative to each other. It usually consists 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) and other elements, Anti rotation inside the anti rotation sleeve
Published on: July 30, 2019 Clicks: 122
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Advantages and disadvantages of mechanical seal for kettle 1. Advantages (1) The structure is reliable, and the leakage can be limited to a small amount. As long as the surface roughness and straightness of the main sealing surface can meet the requirements, and as long as the wear resistance of the material is good, the mechanical seal can achieve a small amount of leakage, even the leakage can not be seen by the naked eye. (2) Long life. In the mechanical seal, the main wearing part is the end face of the seal friction pair, because
Published on: July 23, 2019 Number of hits: 159
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How to replace the mechanical seal of horizontal grinder? Listen to what the mechanical seal manufacturer said! 1. Remove the cylinder; 2. Remove the distributor assembly and the screen. 3. Clean the shaft with solvent, and remove the front cover and discharge cover of the cylinder. 4. Remove the two elastic rubber hoses and remove the discharge tray. 5. Remove the sealing ring,
Published on: July 20, 2019 Number of hits: 262
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204 Service Life and Reliability of Mechanical Seals I Service Life of Mechanical Seals Mechanical seals rarely fail due to long-term wear and tear, and other factors often promote premature failure of pump mechanical seals. Therefore, the life of the seal should be regarded as a statistical quantity of the kettle mechanical seal, and it is difficult to obtain an accurate value. For example, mechanical seals used in some sewage pumps,
Published on: July 16, 2019 Number of hits: 167
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204 The mechanical seal manufacturer tells you the inspection process of mechanical seal! Mechanical seal maintenance procedures To master mechanical seal maintenance and repair, first know the working principle of mechanical seal. The mechanical seal is a sealing device composed of two sealing elements (static ring and dynamic ring) perpendicular to the shaft, smooth and straight surfaces that stick together and rotate relative to each other. It depends on
Published on: July 12, 2019 Number of hits: 496
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Let 204 mechanical seal manufacturer tell you the working principle of mechanical seal! Mechanical seal is a shaft seal device that can prevent leakage by a pair or several pairs of end faces that slide relative to the shaft under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and are matched with auxiliary seals. Selection of common materials for mechanical seal: purified water; normal atmospheric temperature; (Dynamic) 9CR18, 1CR13
Published on: July 9, 2019 Number of hits: 457
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204 Basic knowledge of mechanical seal 1. Basic concept of mechanical seal: mechanical seal refers to a device to prevent fluid leakage, which is composed of at least one pair of end faces perpendicular to the rotation axis, under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism, and with the cooperation of the auxiliary seal, to keep sticking and sliding. The auxiliary seal of compensation ring is metal bellows, which is called bellows machine
Published on: July 2, 2019 Clicks: 190
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The mechanical seal manufacturer introduces the problems that should be noticed in use. 1. Precautions during installation. a. Pay great attention to avoid the installation deviation during installation. (1) Tighten the gland after the 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 between the gland and the outer diameter of the shaft or shaft sleeve
Published on: June 18, 2019 Number of hits: 117
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The mechanical seal for kettle has higher sealing requirements. When the shaft needs to bear greater radial force, the mechanical seal with built-in bearing should be selected, but it is generally not used as the bearing point of the shaft. If it is necessary to use this as the supporting point, the improved mechanical seal with T after the model shall be selected. Replace the built-in bearing of the mechanical seal for kettle with two tapered roller bearings, which can replace the
Published on: June 11, 2019 Clicks: 160
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Service life and reliability of mechanical seals for kettles I Service life of mechanical seals Mechanical seals rarely fail due to long-term wear and tear, and other factors often promote premature failure of pump mechanical seals. Therefore, the life of the seal should be regarded as a statistical quantity of the kettle mechanical seal, and it is difficult to obtain an accurate value. For example, mechanical seals used in some sewage pumps, one
Published on: June 6, 2019 Clicks: 140
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Mechanical seal uses the principle that two planes rub against each other to achieve the purpose of sealing. The rotating sealing surface is installed on the main shaft of the liquid pump, while the fixed sealing surface is installed in the sealing gland. Since one sealing surface is moving while the other is stationary, this type of seal is called dynamic seal. Fig. 1 The seal between the rotating surface and the stationary surface is the decisive seal
Published on: June 3, 2019 Number of hits: 356
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204 Basic structure and primary characteristics of mechanical seal Mechanical seal is a kind of equipment used to deal with the seal between rotating shaft and engine body. It consists of at least one pair of end faces perpendicular to the rotation axis, sticking and sliding together under the effect of fluid pressure and tissue elasticity (or magnetic force) compensation and the cooperation of auxiliary seals to avoid fluid leakage. It is commonly used in pumps, compressors, anti leakage devices
Published on: June 1, 2019 Clicks: 179
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1、 Overview of mechanical seal Mechanical seal (end face seal) is a device used to solve the sealing between rotating shaft and engine body. It is a device to prevent fluid leakage, which is composed of at least one pair of fluid pressures on the end faces perpendicular to the rotation axis, the elastic force (or magnetic force) of the compensation mechanism, and the cooperation of the auxiliary seal to keep fit and slide relatively. It is commonly used in pumps, compressors, reaction mixers
Published on: June 1, 2019 Number of hits: 120
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