HG/T 2105-1991 Glass-lined equipment slip-on flange HG/T2105-1991 standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
Glass Equipment
Topic Content and Applicable Scope
Lap-joint Flange
HG / T 2105 --91
This standard specifies the type, basic parameters and dimensions, technical requirements, etc. of the slip-joint flange for glass equipment. This standard is applicable to the slip-joint flange of glass equipment with a nominal pressure less than or equal to 1.0MP and a service temperature of higher than -10 and lower than or equal to 200℃
2 Reference Standards
GB 898 Stud bm = 1.25 a
GB 2555
General Pipe Flange Connection Dimensions
GB 2556
GB 5676
General group pipe flange sealing surface type and size General engineering cast carbon steel
Mallet cast iron
GB 5679
GE 5780
Hexagon head bolts
Hexagon head butterfly bolts Grade A and B
GE 5782
GB61701 type hexagonal nut A rental B grade
3 Types, basic parameters and dimensions
3.1 Type A is a smooth hole slip-on flange. The basic parameters and dimensions are shown in Figure 1 and Table 1, Table 2 and 3. The slip-on flange materials are divided into:
Type 1 is KTH350-10, and the dimensions are shown in Table 2.
Type Ⅱ is ZG270-500, and the dimensions are shown in Table 3. Type 32 is a threaded hole slip-on flange. The basic parameters and dimensions are shown in Figure 2 and Table 1 and Table 3. The slip-on flange materials are:
Type ZG270-500, and the dimensions are shown in Table 3.
Note: When the medium temperature of the glass equipment is greater than -20 to less than ~10℃, it can be selected according to the actual minimum operating temperature of the slip-on flange. Approved by the Ministry of Chemical Industry of the People's Republic of China on August 19, 1991 and implemented on January 1, 1992
HG/T 2105—91
JHG/T2105
G8 5780
GB5782
GB6170
Live flange
HG/T 2105 --91
Table 1 Detailed list
KT11350-10 or ZG270-500bzxZ.net
For ≤0.6MPa
H at 1.0MPa
Nominal pressure PN
Nominal pressure PN
Nominal diameter
Nominal true diameter
IIG/T 2105 -- 91
Table 2 Dimension table
Pei 3 Dimension Pei
Reference weight
Reference before
3.3 Marking example
HG/T 2105—91
Abstract The nominal pressure PN of the slip-on flange for glass equipment is 1.0MPa, the nominal diameter DN is 100mm, the material is malleable cast iron, and the connecting hole is a smooth hole.
Marking: slip-on flange PN1.0DN100AIHG/T21054 Technical requirements
4.1 Malleable castings shall comply with the provisions of GB5679, and carbon steel castings shall comply with the provisions of GB5676. 4.2 The allowable deviation of the chord length of two adjacent bolt holes and the diameter of the center circle of the bolt holes is ±0.6mm, and the allowable deviation of the chord length of any two bolt holes shall not exceed ±1mm.
4.3 The castings shall be subjected to stress relief heat treatment. 4.4 The gaskets used for the slip-on flange in this standard shall comply with relevant regulations. The specific material names shall be in accordance with the technical requirements of the general drawing of the glass. Note: When using B-type slip-on flanges, stud bolts (G1898-76) shall be used for flange connection. 5. Packaging, transportation and storage
5.1 The product shall be accompanied by a packing list, product certificate and product instructions. 5.2 The product shall be stored indoors. Open-air storage or stacking is not allowed. Additional instructions
This standard is proposed by China Chemical Equipment Corporation and is under the jurisdiction of the National Standardization Technical Committee for Glass Equipment. This standard is drafted by the Shanghai Pharmaceutical Design Institute of the State Drug Administration. The main drafters of this standard are Hua Qiuyuan, Li Yibo and Bao Aiyuan. This standard refers to the German national standard DIN28150-1978 "Slip-on flanges for welded parts on pin glass containers". From the implementation of this standard, the former Ministry of Chemical Industry standard HG5--262~263-79 "Slip-on flanges for sugar glass equipment" will be invalid.
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