HG 2264-1992 Types, main dimensions and marks of mechanical seals for kettles HG2264-1992 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
HG2264-92
Types, main
Dimensions and markings of mechanical seals for kettles
Published on January 8, 1992
Ministry of Chemical Industry of the People's Republic of China
Implementation on July 1, 1992
Chemical Industry Standard of the People's Republic of China
Types, main
Dimensions and markings of mechanical seals for kettles
1 Subject content and scope of application
HG226492
This standard specifies the types, main dimensions and identification marks of mechanical seals for kettles (hereinafter referred to as mechanical seals). This standard applies to the mechanical seals of steel reactor stirring shafts and similar vertical rotating shafts. Its working parameters are as follows: the medium pressure in the sealing chamber is 1.33×10-MPa (absolute pressure) ~ 2.5MPa (gauge pressure); the medium temperature in the sealing chamber is 0~80℃; the outer diameter of the stirring shaft (or sleeve) is 30~130mm; the rotation speed is not more than 500r/min; the medium is various fluids except strong oxidizing acids and high-concentration alkalis. 2 Classification and basic types of mechanical seals
2.1 Mechanical seals are mainly divided into single-end mechanical seals , axial double-face mechanical seal and radial double-face mechanical seal. 3.2 Basic types and codes of mechanical seals are shown in Table 1. Table 1
Single-face mechanical sealWww.bzxZ.net
Double-face mechanical seal
Unbalanced type
Balanced type
Both the medium side and the atmosphere side are unbalanced
The medium side is unbalanced, and the atmosphere side is balanced. Both the medium side and the atmosphere side are balanced
Note: Double-face mechanical seals include axial double-face mechanical seals and radial double-face mechanical seals. 3 Main dimensions of mechanical seals
3.1 Mechanical seal appearance and flange connection dimensions 3.1.1 Single-end mechanical seal appearance and flange connection dimensions See Figure 1 and Table 2 Approved by the Ministry of Chemical Industry of the People's Republic of China on January 8, 1992
Implemented on July 1, 1992
Nominal shaft diameter
HG2264-92
The appearance of axial double-end mechanical seals is shown in Figure 2, D,
Bolt holes
Its flange connection dimensions: UU type see Table 3, UB type see Table 4, BB type see nominal shaft diameter
HG226 4-—92
Bolt hole
Nominal shaft diameter
Nominal shaft diameter
HG2264—92
Bolt hole
Bolt hole
HG2264—92
3.1.3 The appearance and connecting flange dimensions of radial double-end mechanical seal are shown in Figure 3 and Table 6.D
Nominal shaft diameter
3.2 Isolation fluid interface dimensions
Bolt hole
HG2264-92
For single-end mechanical seal, isolation fluid should be injected into the part above the sealing end face of the sealing box. For double-face mechanical seals, pressurized isolation fluid should be injected into the space between the sealing end face on the medium side and the sealing end face on the atmosphere side of the sealing box. The pressure should be greater than the medium pressure in the seal. The schematic diagram of the isolation fluid interface of the single-face mechanical seal is shown in Figure 4, and the dimensions are shown in Table 7. Isolation fluid inlet
Nominal shaft diameter
Liquid level display
A schematic diagram of the isolation fluid interface of the axial double-face mechanical seal is shown in Figure 5, where (a) is the isolation fluid interface overlapping and arranged on the common shell contour line, and (b) is the isolation fluid interface staggered 180° from each other. The dimensions are shown in Table 8.6
Leakage fluid detection hole
Leakage fluid detection hole
Nominal shaft diameter
HG2264-92
Isolation fluid outlet
Isolation fluid outlet
Isolation fluid population
Leakage detection hole
Leakage detection hole
Isolation fluid inlet
HG2264-92
The schematic diagram of the isolation fluid interface of the radial double-end mechanical seal is shown in Figure 6, and the dimensions are shown in Table 9. Figure
Nominal shaft diameter
3.3 Condensate leakage detection interface dimensions
A leakage detection hole is provided on the atmospheric side of the axial double-end mechanical seal, while the leakage detection hole on the medium side can be set according to the use requirements. The schematic diagram of the axial double-end mechanical seal with leakage detection holes on the medium side is shown in Figure 5, and the dimensions are shown in Table 9.3.4 Cooling water interface
Single-end mechanical seals and double-end mechanical seals are available in two types, with or without cooling devices. The structural type of the cooling device is generally a shell cooling jacket type or a cooling pipe type. There is no unified regulation for the specific structure. 8
4 Mechanical seal mark
Marking symbol
Mechanical seal English abbreviation
Industry standard code
HG2264-
MSHG.2264-×××-×-×××-
Mechanical seal series code (expressed in 3 digits, see Table 10) Mechanical seal type code (see Table 1)
Mechanical seal shaft diameter (expressed in 3 digits, if less than 3 digits, add zero in front) Mechanical seal Direction of rotation (see Table 11)
Material code (in letters, see Article 4.2) Table 10
Mechanical seal for skewer Series name
Single end small spring outflow U-type mechanical seal for skewer Single end small spring outflow B-type mechanical seal for skewer Double end small spring UU-type mechanical seal for skewer Double end small spring UB-type mechanical seal for skewer Double end small spring BB-type mechanical seal for skewer Single end small spring outflow pro-PTFE bellows B-type mechanical seal for kettle Radial double end small spring UB-type mechanical seal for kettle Mechanical seal table 11
Mechanical seal material code
Single end face: from the stationary ring to the rotating ring, the mechanical seal turns clockwisexxx××x×x
Series code
Double end face: from the medium side to the stationary ring to the rotating ring, the mechanical seal turns clockwiseSingle end face: from the stationary ring to the rotating ring, the mechanical seal turns counterclockwiseDouble end face: from the medium side to the stationary ring to the rotating ring, the mechanical seal turns counterclockwisePart material code see Table 13, indicating the position as follows:Note:||tt| |Medium side rotating ring material
Medium stationary ring material
Medium side auxiliary sealing ring material
HG2264-92
Elastic material
Other structural materials (referring to the sealing components in contact with the medium) Atmospheric side rotating ring material
Atmospheric side stationary ring material
Atmospheric side auxiliary sealing material
①Single-end mechanical seal material code takes the first five positions, double-end mechanical seal material code takes all 8 positions②To distinguish auxiliary seals The structure of the ring should be distinguished by adding a number in the lower right corner of the letter indicating the material of the auxiliary sealing cabinet, see Table 12.
Seal structure
Material of rotating ring and stationary ring
Material name
Carbon-graphite
Graphite impregnated copper
Graphite impregnated babbitt alloy
Graphite impregnated phenolic resin
Graphite impregnated furfuryl resin
Graphite impregnated cycloammonia resin
Siliconized graphite,
Chromium-nickel-molybdenum steel
Chromium-nickel steel Alloy
Chromium-nickel-aluminum-steel alloy
High nickel alloy
Tin-phosphor bronze
Alloy cast iron
Cast chrome steel
Other metals
Metal surface welding bromine-based alloy
Metal surface welding cobalt-based alloy
Metal surface welding iron-based alloy
Metal surface spraying
Nitride
Silicon nitride
Carbide
Tungsten carbide
Silicon carbide
Other Other carbides
Metal oxides
Alumina
Chromium oxide
Other metal oxides
Filled glass fiber polytetrafluoroethylene
Filled graphite polytetrafluoroethylene
Other engineering plastics
HG2264—92
Auxiliary sealing ring materials
Material name
Elastic material
Nitrile rubber
Chloroprene rubber
Butyl rubber
EPDM rubber
Silicone rubber
Nitrogen rubber
Rubber coated tetrafluoroethylene
Other elastic materials
Non-elastic materials
San Si Ce ethylene
Impregnated graphite
Asbestos rubber materials
Flexible stone
Other non-elastic materials
Springs and other structural materials
Material name
Rolled nickel steel
Chromium nickel molybdenum steel
High nickel alloy
Other materials
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