HG/T 20609-2009 (HG/T20609-2009)

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HG/T 20609-2009: PDF in English (HGT 20609-2009)
HG/T 20609-2009
Chemical Industry Standard
of the People's Republic of China
HG
Replacing HG 20609-1997
Metal Jacketed Gaskets for use with Steel Pipe
Flanges
(PN Designated)
(PN系列)
ISSUED ON. FEBRUARY 5, 2006
IMPLEMENTED ON. JULY 1, 2006
Issued by. Ministry of Industry and Information Technology of the People’s
Republic of China
Contents
1. Scope ... 3 
2. Normative references ... 3 
3. Service conditions of the gaskets ... 3 
4. Gasket pattern and dimension ... 4 
5. Technical requirement ... 5 
6. Marking and Packaging ... 7 
1. Scope
This national standard specifies pattern, dimension, and technical requirement and
marking of metal jacketed gaskets for use with steel pipe flanges (PN designated).
This Standard is applicable to metal jacketed gaskets for use with steel pipe flange with
raised face in nominal pressure of PN25~PN100 specified in HG/T 20592.
Note. the use of the asbestos-contained material shall comply with requirements of relevant laws and regulations. When
the production and use are containing asbestos material gasket, protective measures shall be adopted, so as to ensure not
endanger the person health.
2. Normative references
The following standards contain provisions which, through reference in this text,
constitute provisions of this Standard. For dated reference, subsequent amendments
(excluding content of corrigenda) to, or revisions of, any of these publications do not apply.
However, Parties to agreements biased on this Code are encouraged to investigate the
possibility of applying the most recent editions of the standards indicated below. For undated
references, the latest edition of the normative document referred to applies.
"Metallic Materials--Bend Test" GB/T 232
"Hot-rolled Quality Carbon Structural Steel Sheets and Strips" GB/T 710
"Sheet of Copper and Copper Alloy" GB/T 2040
"Continuously Hot-dip Zinc-coated Steel Sheet and Strip" GB/T 2518
"Cold Rolled Stainless Steel Plate Sheet and Strip" GB/T 3280
"Wrought Aluminium and Aluminium Alloy Plates, sheets and Strips for General
Engineering" GB/T 3880
"Compressed Asbestos Fibre Jointing" GB/T 3985
"Metallic Envelope Gaskets for Pipe Flanges" GB/T 15601
"Steel Pipe Flanges (PN designed)" HG/T 20592
"Specification for selection of Steel Pipe Flanges, Gaskets and Bolting (PN designated)"
HG/T 20614
"Specifications of Flexible Graphite Sheets" JB/T 7758.2
3. Service conditions of the gaskets
3.0.1 The maximum operating temperature of the metal jacketed material shall be in
accordance with those specified in Table 3.0.1.
Table 4.0.1 Gasket Dimension (mm)
Nominal
dimension
DN
Nominal pressure
Gasket
thickness
PN25 PN40 PN63 PN100
Inside
diameterD1
Outside
diameterD2
Inside
diameter
D1
Outside
diameter
D2
Inside
diameter
D1
Outside
diameter
D2
Inside
diameter
D1
Outside
diameter
D2
10 28 46 28 46 28 56 28 56
15 33 51 33 51 33 61 33 61
20 45.5 61 45.5 61 43.5 72 45.5 72
25 54 71 54 71 54 82 54 82
32 61.5 82 61.5 82 61.5 88 61.5 88
40 68 92 68 92 68 103 68 103
50 77.5 107 77.5 107 77.5 113 77.5 119
65 97.5 127 97.5 127 97.5 138 97.5 144
80 109.5 142 109.5 142 109.5 148 109.5 154
100 131.5 168 131.5 168 131.5 174 131.5 180
125 156 194 156 194 156 210 156 217
150 183.5 224 183.5 224 183.5 247 183.5 257
200 237.5 284 244.5 290 244.5 309 244.5 324
250 293.5 340 303.5 352 303.5 364 303.5 391
300 353 400 368 417 368 424 368 458
350 407 457 422 474 422 486 422 512
400 458.5 514 488.5 546 488.5 543 488.5 572
450 503 564 508 571 - - - -
500 561 624 561 628 - - - -
600 665.5 731 680.5 747 - - - -
700 765.5 833 - - - - - -
800 875.5 942 - - - - - -
900 975.5 1042 - - - - - -
5. Technical requirement
5.0.1 The metallic material of the coating shall comply with the requirements of relevant
standards, and the hardness value shall be in accordance with those specified in Table 5.0.1.
6. Marking and Packaging
6.0.1 The gaskets shall be packed respectively according to the specifications and materials
and a conformity certificate of production quality test shall be attached at delivery. Each
gasket shall be labeled with the contents specified in Article 6.0.2.
6.0.2 Labeling content.
1 Standard No. (HG/T 20609)
2 Nominal dimension DN
3 Nominal pressure PN
4 Code name of the metallic material for clad (see the provisions in Table 3.0.1 of this
standard).
5 Filling material
6.0.3 Marking illustration.
Nominal dimension. DN500, nominal pressure. PN25, metal cladding material.
0Cr18Ni9, filling material. XB450 paronite metal jacketed gasket, it shall be labeled as. HG/T
20609 metal jacketed gasket 500-25 304/XB450
......
 
(Above excerpt was released on 2017-03-06, modified on 2021-06-07, translated/reviewed by: Wayne Zheng et al.)
Source: https://www.chinesestandard.net/PDF.aspx/HGT20609-2009