HG/T 21564-1995 Stirring drive device - flange HG/T21564-1995 standard download decompression password: www.bzxz.net

Stirring drive device - flange
HG21564-95
Subject content and scope of application
This standard specifies the type, size, technical requirements and relevant use regulations of the stirring drive device - flange. This standard is applicable to the stirring vessel with a design pressure of PN-0.11.6MPa (-1-16bar) and a design overflow of -20~+300℃, and is used to connect the flange of the bottom cover of the stirring drive device. 27
GB152.1~~152.4
GB4237
JB/T4709
JB4726
JB4727
JB4728
HGJ 15
HG21563
HG21565
Referenced standards
"Through holes and countersunk holes for fasteners"
"Hot-rolled stainless steel plates"
"Welding procedures for steel pressure vessels"
"Carbon steel and low alloy steel forgings for pressure vessels" "Carbon steel and low alloy steel forgings for low-temperature pressure vessels" "Stainless steel forgings for pressure vessels"
"Materials selection regulations for steel chemical containers" "Types, connection dimensions and sealing surface dimensions of steel pipe flanges" "Technical conditions for steel pipe flanges"
"System combination, selection and technical requirements for agitator transmission devices" "Agitator transmission device - installation of bottom cover"| |tt||Type and size
3.1 Type
The type of flange flange shall be in accordance with the provisions of Table 3.1 and Figures 3.1-1 to 3.14. Type of flange flange
Raised face flange flange
Concave face flange flange
Raised face lined flange flange
Four-sided black lined flange
Figure 3.1-1R type flange flange
Nominal diameter
200-900
200~900
200~900
200-~900
Figure 3.1-2M type flange flange
Note: The other dimensions are the same as those of R type flange. d
Figure 3.1—3LR type flange
Note: The remaining dimensions are the same as those of R type flange. d
Figure 3.1-4LM type flange
Note: The remaining dimensions are the same as those of M type and LR type flange. 3.2 Dimensions
The dimensions of flanged flanges shall be in accordance with the provisions of Figures 3.11 to 3.1-4 and Tables 3.21 to 3.2-2. 30
Flanged flange
Nominal diameter
Connection dimensions and structural dimensions of flanged flanges (mm)
530830
7201045|990|860
Quantity Thread
Sealing surface dimensions of flanged flange
.Table 3.2-1
Mass kg
Carbon steel or integral stainless steel
Stainless steel lining
3.3 Detailed structure
The detailed structure of flanged flanges shall be in accordance with the provisions of Figures 3.3-13.3-4. 0.8Se
Figure 3.3-1 R-type flange structure details
Figure 3.3-2 M-type + flange structure details
Note: The rest of the structure and dimensions are the same as the R-type flange. M12 screw hole depth. 12
6 exhaust holes in the middle
Figure 3.3-3LR-type flange structure details
Note: The rest of the structure and dimensions are the same as the R-type flange. M12. Screw hole 12
6 exhaust holes in the middle
Figure 3.3→4LM-type flange structure details Note: The rest of the structure and dimensions are the same as the R and LR-type flanges. X node
Technical requirements
4.1 Materials
4.1.1~ The parent material of the flange shall be in accordance with the provisions of Table 4.1.1, and its chemical composition, mechanical properties and other technical requirements shall comply with the provisions of the relevant standards listed in Table 4.1.1. 4.1.2 The lining material of the flange shall be in accordance with the provisions of Table 4.1.1, and its chemical composition and corrosion resistance shall comply with the provisions of the relevant standards listed in Table 4.1.1.
Material of + flange
oCr18Nig
00Cr19Ni10
Forging (parent material)
Standard number
JB4726
JB4727
JB4726
·JB4727
OC18Ni10Ti
(1C-18Ni9T)
OCr17Ni12Mo2
00Cr17Ni14Mo2|| tt||JB4728bZxz.net
Steel plate (black lining)
OCr18Ni9
00Cr19Ni10
OCr18Ni10Ti
(1Cr18Ni9Ti)
OC117Ni12Mo2
00Cr17Ni14Mo2
Standard No.
GB4237
The use temperature of the material shall comply with the relevant standards and meet the requirements of 4.0.8 of HG21563. 4.1.3
Forgings (including forged and rolled parts) shall be inspected and accepted in accordance with the requirements for Grade 1 forgings of JB4726, JB4727 and JB4728. If there are special requirements, they shall be in accordance with the requirements of the drawings.
4.2 Dimension tolerance
4.2.1 The connection dimensions of the flange and the tolerance of the flange thickness shall be in accordance with the provisions of HGF66. 4.2.2 Other dimensional tolerances shall be in accordance with the provisions of GB1804. The tolerance of the dimension without tolerance on the machined surface shall be in accordance with IT14, and the tolerance of the dimension without tolerance on the non-machined surface shall be in accordance with IT16.
4.2.3 The flange is generally concentric with the axis of the container or the container shell. It can also be set away from the center axis of the container according to the design requirements, but the horizontality of the sealing surface must be maintained, and the tolerance is 1/1000 of the inner diameter of the container. The axis of the bolt hole of the flange is kept perpendicular to the flange sealing surface. The sealing surface and bolt hole of the flange with lining should be processed after the flange is welded. 4.3 Welding requirements for the lining layer of the flange
4.3.1 Select the welding material according to the flange parent material and the lining layer material in accordance with the provisions of HGJ15 and JB/T.4709. 4.3.2 The weld surface shall not have defects such as cracks, pores, isolated pits and slag inclusions. 4.3.3 For flanged flanges with linings, compressed air with a pressure of 0.4~0.5MPa or ammonia with a pressure of 0.05MPa shall be passed through the exhaust hole to check the weld quality and leakage. The exhaust hole shall be in the middle of the span of two adjacent bolt holes. 4.4. Surface roughness
4.4.1 The surface roughness of the sealing surface of the flange shall be in accordance with the provisions of Figures 3.3-1 to 3.3-4. 4.4.2 The forged surface of the flange shall be smooth and shall not have defects such as forging marks and cracks. 4.4.3 The bolt bearing surface of the flange shall be machined or wedged (eyelet), and the hole size shall be in accordance with the provisions of GB152.4. The surface roughness of the bolt bearing surface shall be in accordance with the provisions of Figures 3.3-1 to 3.3-4. After the flange is processed, anti-rust oil shall be applied to the sealing surface to prevent the sealing surface from being scratched. 35
HG21564-95
5 Marking and marking examples
5.1 Marking
Liner material code (see Table 4.1.1)
Flange material code (see Table 4.1:1)
Nominal diameter (mm)
Flange type (see Table 3.1)
5.2 Marking examples
Example 1: An R-type (raised face) flange with a nominal diameter of 250 and made of 20 steel. Marked as: HG21564-95 flange R250-20
Example 2: An M-type (concave), nominal diameter 250, material 0Cr18Ni9 west edge flange, its marking is: HG21564-95
Flange M250-304
Example 3: An LR-type (stainless steel lining, raised face), nominal diameter 500, flange material 16Mn lining layer material OCr18Ni10Ti flange, its marking is: HG 21564-95
Flange LR500-16Mn/321
Proposer, editor
Additional instructions
and main drafter
Proposer: Equipment Design Technology Center Station, Ministry of Chemical Industry Editor: Equipment Design Technology Center Station, Ministry of Chemical Industry Main drafter: Yu Jun Ying Daoyan
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.