HG/T 2480-1993 Metal-clad gaskets for pipe flanges HG/T2480-1993 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
HG/T2480-93
Metal clad gaskets for pipe flanges
Published on June 30, 1993
Ministry of Chemical Industry of the People's Republic of China
Implementation on January 1, 1994
Chemical Industry Standard of the People's Republic of China
Metal clad gaskets for pipe flanges
1 Subject content and scope of application
This standard specifies the type, size and technical requirements of metal clad gaskets for pipe flanges. HG/T2480-93
This standard applies to pipe flanges with a nominal pressure PN of 0.25MPa to 0.63MPa. Metal clad gasket.2 Reference standards
Metal bending test method
GB2040
GB2518
GB2520
GB3003
GB3280
GB3880
High-quality carbon structural steel sheet and strip
Pure copper sheet
Continuous hot-dip galvanized steel sheet and strip
Electro-tinned steel sheet and strip
Ordinary aluminum silicate refractory fiber felt
Stainless steel cold-rolled steel sheet
Aluminum and aluminum alloy sheet
GB12385
Test method for sealing performance of gasket for pipe flange G B/T12621
Stress relaxation test method for pipe flange gasket
GB/T12622
Compression rate and rebound rate test method for pipe flange gasketZBJ22019Technical conditions for flexible graphite tape for metal spiral wound gasketHGJ45
Raised face flat weld steel pipe flange
Raised face flat weld steel pipe flange with neck
Concave and convex face flat weld steel pipe flange with neck
Grooved face flat weld steel pipe flange with neck
Full flat weld steel pipe flange with neck
Raised face butt weld steel pipe flange
Concave and convex face butt weld steel pipe flange
Grooved face butt weld steel pipe flange Flange
Raised face socket welding steel pipe flange
Concave and convex face socket welding steel pipe flange
Grooved face socket welding steel pipe flange
Raised face flat welding ring loose sleeve plate type steel pipe flange HGJ58
Concave and convex face flat welding ring loose sleeve plate type steel pipe flange HGJ59
Grooved face flat welding ring loose sleeve plate type steel pipe flange Flanged loose sleeve plate type steel pipe flange
Approved by the Ministry of Chemical Industry of the People's Republic of China on 1993-06-30 and implemented on 1994-01-01
3 Mark||Metal cladding X
Covered metal material
Plasticized steel sheet
Galvanized steel sheet||t t||0Cr18Ni1Ti
OCr19Ni9
00Cr17Ni14Mo2
Filling material
Asbestos board
Flexible graphite
Ordinary aluminum silicate refractory fiber felt
Marking example:
HG/T2480—93
This standard number
Gasket outer diameter Dz: mm
Gasket inner diameter Di: mm
Filling material code (see Table 2)
Coated metal material code (see Table 1)bzxZ.net
Material standard
GB2520
GB2518| |tt||GB2040
GB3880
GB3280
GB3280
GB3280
Corresponding standard
Hardness HBmax
Material standard
ZBJ22019
GB3003
Corresponding standard
Metal clad gasket G1-670×720HG/T2480—93 generation
Indicates that the inner diameter of the gasket is @670mm, the outer diameter is Φ720mm, the cladding material is 0Cr19Ni9, and the filling material is asbestos board. Metal clad gasket,
4 Structural form and Dimensions
4.1 Structural form: as per Figure 1
4.2 Dimensions: as per Table 3
Applicable standards
HG/T2480-93
1-Gasket shell: 2-Gasket cover; 3-Padding
DN<1200L-3;
DN>1200L-4
Metal-clad gasket series dimensions for pipe flanges
HGJ45, 46, 49, 50, 54, 57, 600.6
4.0, 6.3
HGJ48,
52, 56, 59
51, 55, 58
Applicable standards||t t||5 Technical requirements
HG/T2480-93
Continued Table 3
HG45、46、49、50、54、57、600.6
20502090|2085
21302170
HGJ47、
52、56、5951、55、58
395421
5.1 Packaging materials and filling materials shall conform to the requirements of GB710, GB2040, GB2518, GB2520, GB3003GB3280, GB3880, ZBJ22019 and relevant corresponding standards respectively. 5.2 The thickness of the package material is generally 0.25, 0.3, 0.4 mm 5.3 The deviation of the gasket size is in accordance with Table 4.
≤500
500DN≤1200
1200
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