This part specifies the types, codes and markings of spiral wound gaskets. This part is applicable to spiral wound gaskets for pipe flanges and pressure vessel flanges. GB/T 4622.1-2003 Classification of spiral wound gaskets GB/T4622.1-2003 Standard download decompression password: www.bzxz.net

GB/T4622% Cable type gasket\The book consists of the following parts: Part 1: Classification of cable type gaskets
Part 2: Dimensions of entangled type riser flange gaskets Part 3: Technical specifications of entangled type seat gaskets This part is a revised version of GB/T4622.11993. The main policy is as follows: GB/T4622.1—2003
According to 7483, 19911807005 sales method, the size of the gasket used has been appropriately rectified for the whole type requirements, for example; the "external reinforcement ring" is changed to "positioning ring", the "inner management ring" is changed to "inner bad", the non-metal mesh belt is changed to "filling belt", and the "light belt" is changed to "metal belt".
Based on the common industry practice, the type code in the original Table 1 is adjusted, that is, the "belt inner reinforcement ring" code is changed to "B", and the "belt outer reinforcement ring" code is changed to "B"; refer to the recently revised chemical. 1, petrochemical Tetra Pak container industry standards, the material code and marking method have been adjusted to unify the marking method nationwide,
From the date of implementation, it will replace GB/T 4622.1 2393. This part is divided into two parts: 1. The Federation of Machinery Industry, the National Technical Committee for Standardization of Accessories for Export of Machinery Industry, the National Institute of Machinery Science, Shanghai Xinfumi Technology Co., Ltd., Wushi Petrochemical General Parts Factory, East China Military University, Jianghua Hongzuo Parts Factory.
The main drafters of this part: Li Helei, Liu Zhixian, Shi Zhonggong, Zhang Fucheng, Chen Qiu. This part was first issued in 1984 and revised for the second time in 2003. 1 Standard
Spiral wound gaskets
This part specifies the types, codes and markings of spiral wound gaskets. This part is applicable to pipe flanges and pressure vessels. "Spiral wound gaskets: 2 Gasket configuration type
2.1 Basic type (sealing element)
Basic or gaskets are shown in Figure 1.
Write the belt
Figure 1 Basic type
2.2 With inner ring type (with inner ring and sealing element) With inner ring type see Figure 2.
Other belts
Figure 2 With inner ring type
2.3 With positioning ring type (with positioning ring and sealing element) With positioning type see Figure 5,
Item
Figure 3 With positioning ring typewww.bzxz.net
Industry wing coin
GB/T 4622.1—2003
Jin Guobei
Medium and high belt
GB/T4622.1—2003
2.4 With inner ring and positioning ring type (with book flash ring, positioning ring and case sealing element) With inner ring and positioning ring single see Figure 4.
Dingyue Ring
3 Code
Figure 4 Inner Ring and Dingyue Ring Type
3.1 The plastic number of the gasket should comply with the provisions of Table 1. Table 1 The sheet type code
Gongben spot
By fixing the system
The inner ring and the side row
The whole sheet material code shall comply with the provisions of Table 2, the fixing ring material
No fixing ring
Table sheet material code
Metal belt village new
cCrleNig
CCr.7Ni.2Mnz
QnG-17N1:M2
nCt25Ni2G
C-IHNOTi
uCt]8N:12M21i
DoCr.&Ni.U
Certification, the strip material production number
Filling belt material
Soft silk five exciting
Polycyclic source ethylene
Sheep asbestos shrimp
Heat use denwei
Metal state
Selected chord deformation surface shape
Barrel surface
No inner ring
0C:17Ni12Mo2T
CCr17N.1+Mc2
H-2Ni23
Cr1&N12Mo2Ti
buCt19Ni10
4 Marking
4.1 Marking method
4.2 Marking example
Construction of winding type lookout piece:
Standard size of seat piece
Nominal pressure (decimal value is marked in bar)
Nominal pressure
GA/I 4622.1—2003
Gasket material code (positioning ring, metal belt, filling belt, use ring) plate single code
Piece type, belt inner ring and positioning single, gasket material, positioning ring material is low-rise pin, expansion belt material is 0 core 18N9, filling belt analysis is flexible graphite inner ring material is (Cr18Ni9) nominal pressure: 151m: nominal pressure 4.1MPa4u.T; gasket size standard, GB/T4622.2—200 3. Its mark is:
Plastic gasket 11223-DN150N45GB/T4622.2 Gasket type: coal type; block material, Jinbo belt material is 0Ct-N. The filling belt material is flexible stone, nominal diameter, 150mm, public pressure: 4.0MPu (42but), seat size mark: GB/14623.2-2003: Its standard is: Wrapped gasket A022n-DV:50-PN4DGT/T4622.2
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