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204 Introduction of mechanical seal manufacturer Installation and maintenance of pump mechanical seal 1 Installation of pump mechanical seal 1.1 Installation preparation of pump mechanical seal Ensure that the installation chamber is clean and free of any foreign matter. The shaft or sleeve matched with the mechanical seal shall have correct size, smooth surface, good mechanical seal for linear pump, and no burr, sharp corner, nick or excessive
Published on: October 17, 2020 Clicks: 148
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The technical requirements of mechanical seal for kettle are that the seal ring is the general name of dynamic ring and static ring (the same below), and it is the main component of mechanical seal. To a great extent, seal ring determines the service performance and life of mechanical seal, so some requirements are put forward for it. There shall be sufficient strength and rigidity to prevent damage under working conditions (such as pressure, temperature, sliding speed, etc.), and the deformation shall be as small as possible,
Published on: October 15, 2020 Clicks: 91
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Published on: September 30, 2020 Clicks: 52
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When the mechanical seal manufacturer introduces the ideal sealing machine, it is necessary to understand the leakage first. If the leakage principle is understood, then the corresponding sealing mechanism will be formed. There are three kinds of leakage. One is through leakage, that is, leakage between the sealing surface gaps. The other is leakage, that is, leakage of the sealed fluid through the capillary tube of the seal material. The third is diffusion, that is, under the effect of concentration difference
Published on: September 26, 2020 Clicks: 172
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204 Technical requirements of mechanical seal The seal ring is the general name of dynamic ring and static ring (the same below), and is the main component of mechanical seal. To a great extent, seal ring determines the service performance and life of mechanical seal, so some requirements are put forward for it. There shall be enough strength and rigidity to avoid damage under working conditions (such as pressure, temperature and sliding speed), and the deformation shall be as small as possible
Published on: September 26, 2020 Clicks: 114
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HU2 type multi spring single end mechanical seal HU2 type mechanical seal dimensions comply with ISO3069, DIN24960 and GB/T6556 standards, strong interchangeability, can replace imported mechanical seal 59U, M7N, etc. The auxiliary seal ring can be rubber O-ring, PTFE V-ring, PTFE wedge ring according to user requirements. No rotation with axis
Published on: September 26, 2020 Number of hits: 62
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Structural features of 205 type mechanical seal for kettle: 205 type mechanical seal for kettle is double end face, multi spring unbalanced structure. The purpose of sealing is mainly achieved by the pressure difference between the sealing liquid in the sealing chamber and the sealed medium. The sealing liquid needs another set of device to circulate. The whole system is complex. Therefore, it is only used for sealing flammable, explosive, toxic and strongly corrosive media in special occasions. Friction pair
Published on: September 12, 2020 Clicks: 114
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Mechanical seal factory tutor you to clean and check! The working principle of mechanical seal requires that there is no impurity inside the mechanical seal. Before assembling the mechanical seal, the moving ring, stationary ring, shaft sleeve and other parts shall be thoroughly cleaned. Key inspection: 1. Whether there are scratches, cracks and other defects on the surface of the moving and stationary rings, which will cause serious leakage of the mechanical seal. If possible, special tools can be used to check the seal
Published on: September 12, 2020 Clicks: 138
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1. What is the face specific pressure of mechanical seal? The remaining closing force per unit area on the seal ring is called end face specific pressure, expressed in Pa. Whether the end face specific pressure in MPa is appropriate has a great impact on the performance and service life of mechanical seals. If the specific pressure is too high, the wear of the seal face will be aggravated, the fluid film will be damaged, and the service life will be reduced; If the specific pressure is too small, the seal will leak
Published on: August 11, 2020 Clicks: 1041
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According to JB/T4127.1-1999 Technical Conditions for Mechanical Seals, the flatness of seal end face shall not be greater than 0.0009mm, and its surface must be smooth and clean. Due to different materials, the surface roughness (Ra) shall be less than 0.2 for metal or hard materials μ m. Non metallic or soft material 0.4 μ m。 The reason why such high flatness is required
Published on: August 11, 2020 Clicks: 743
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The procedure of mechanical seal design is as follows: 1. Conduct thorough investigation and research. Specific design conditions of Dide. The specific contents include: the type of the working host, the parts to be sealed, the operating conditions, etc., namely, the medium pressure, the medium temperature, the shaft speed, and the steering direction; Name, composition and property of the sealed medium, including density, temperature, concentration, saturated vapor pressure, pH value
Published on: July 30, 2020 Number of hits: 108
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Commissioning test of mechanical seal for double end kettles (including 2001 and 2002 models) (1) Static pressure test:. Cycle B
Published on: July 15, 2020 Clicks: 206
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Guide for installation of 212 kettle mechanical seal 1. 212 type is a single end polytetrafluoroethylene bellows partially balanced mechanical seal. The mechanical seal is integrated with the temperature regulator and is equipped with auxiliary support PTFE bushing. The dynamic ring and static ring are two components with high precision requirements. Therefore, the technical requirements and work quality during on-site installation and commissioning should be strictly controlled, which is an extremely important link
Published on: July 14, 2020 Number of hits: 294
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Mechanical seal is a shaft seal device of rotating machinery. Such as centrifugal pumps, centrifuges, reaction kettles, compressors and other equipment. Since the transmission shaft runs through the inside and outside of the equipment, there is a circumferential gap between the shaft and the equipment, through which the medium in the equipment leaks outward. If the pressure in the equipment is lower than atmospheric pressure, the air flows to the equipment
Published on: July 1, 2020 Clicks: 90
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Features of mechanical seal for kettle 1. The mixing shaft is relatively long, and there is a mixing paddle at the lower end, so the mechanical seal for pump has a large swing and oscillation contrast, which makes the dynamic ring and the static ring can not fit perfectly. Usually, the mixing shaft needs to be equipped with a bottom bearing or a central bearing. In order to reduce the influence of shaft swing and oscillation on the seal, add a bearing near the seal, and first consider that the dynamic ring and static ring have better floating performance. 2、
Published on: June 15, 2020 Clicks: 101
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