Drafting unit:Equipment Design Technology Center of the Ministry of Chemical Industry
Proposing unit:Chemical Industry Department Equipment Design Technology Center, Chemical Industry Department Chemical Process Piping Design Technology Center
Publishing department:Ministry of Chemical Industry of the People's Republic of China
This standard specifies the type, size, technical requirements and relevant use regulations of plate-type flat-welded steel pipe flanges (European system). This standard is applicable to plate-type flat-welded steel pipe flanges with nominal pressure PNO.25MPa (2.5 bar) ~ 2.SMPa (25 bar). The plate-type flat-welded flanges specified in this standard are applicable to the two steel pipe outer diameter series B and B specified in HG20593-1997 Plate-type flat-welded steel pipe flanges (European system) HG20593-1997 Standard download decompression password: www.bzxz.net
Some standard content:
Plate type flat welded steel pipe flange (European system) HG2059397 Subject content and scope of application This standard specifies the type, size, technical requirements and relevant use regulations of plate type flat welded steel pipe flange (European system). This standard is applicable to plate type flat welded steel pipe flanges with nominal pressure PNo.25MPa (2.5bar) ~ 2.5MPa (25bzr). The plate type semi-welded flange specified in this standard is applicable to the two steel pipe outer diameter series A and B specified in [IG20592]. 23 HG 20592 HG20603 HG20604 HG20603 HG 20613 HG 20614 Reference standards 《Types and parameters of steel pipe flanges (European system)》《Technical conditions for steel pipe flanges (European system)》《Pressure and temperature grades of steel pipe flanges (European limit system)》《Welding joints and groove sizes of steel pipe flanges (European system)》《Fasteners for steel pipe flanges (European system)》《Selection regulations for steel pipe flanges, gaskets and fasteners (European system)》Flange sealing surface types and applicable scope 3.0.1 The sealing surface types of flanges are sinus surface (RF) and full plane (FF). The size and selection shall be in accordance with the provisions of Chapter 6 and 8 of HG2C592. The sealing surface dimension f of the raised face flange is included in the flange thickness. 3.0.2 The applicable pressure and diameter ranges of various raised face flanges shall be in accordance with the provisions of Table 3.0.2. 3.0.2 Scope of application Sealing surface type Flange surface (RF) Flange plane (FF) DN10-~2000 Nominal pressure PAMPathar) DNIO--600 DNI0-~600 Flange size 4-- and Table 4-- before the method: 41: PN.25MP: (2.5b) Plate type flat welding pivot pipe flange 4PN0.6MPa (6haj) Pole type pipe flange Table 4: FN.c.MPa1obar Plate type flat-welded pipe flange Small FN, 6MPa (15har: Pole type flat steel pipe flange TN2.5MPa (251r: Plate type three-explosion modulation pipe flange 1 -- All surfaces Gate—1 Plate type flat welded forged pipe method elastic ( Pipe three multiple columns P052.0 Photo flat steel pipe injection Screw grid hole Screw inspection hole climbing hole Method "Meat translation Theory Dingqiang Group production natural diameter 122 center FNU.GMPa (SErar) Plate type flat welded steel pipe flange table 4 Sea connection size "Bolt hole center Bolt hole Center diameter! Screw hole: Difference is String Theoretical setting Pipe outer diameter Table 4-3PN1.0MPa(10bar)plate type flat welded steel pipe flange connection dimensions Screw hole Center diameter Bolt hole Blast hole Flange inner diameter Zhang Lanli Theoretical setting Bend outer diameter||tt| |Table 4-4PN1.6MPa (16ar) Plate type flat welded steel pipe connection size Screw hole center screw MS3×2 Flange cover inner diameter Flange outer diameter Table 4-5rN2.5MPa (2Khnr) Plate type flat welded steel pipe flange connection sizebzxZ.net Bolt center screw Center diameter M33×2 M33×2 Flange inner diameter| |tt||Yunlanli S Technical requirements The technical requirements of flanges shall be in accordance with the provisions of HG20603. 6 Maximum non-impact working pressure The nominal pressure of flanges and the maximum non-impact working pressure at different temperatures shall be in accordance with the provisions of HG20604. Welding joints and grooves The welding joints and groove dimensions of flange steel pipes shall be in accordance with the provisions of HC20605. 8 Fastener length The length of the fasteners (bolts, studs) used shall be in accordance with the provisions of Appendix A of HG20613. Optional provisions The selection of flanges, gaskets and fasteners shall be in accordance with the provisions of HG20614. 10 The marking of flanges shall be in accordance with the provisions of HG20592. Additional Notes: Proposal Unit, Chief Editor Unit and Main Drafters of this Standard Proposal Unit: Equipment Design Technology Center Station of Ministry of Chemical Industry Chemical Process Piping Design Technology Center Station of Ministry of Chemical Industry Chief Editor Unit: Equipment Design Technology Center Station of Ministry of Chemical Industry Main Drafters: Ying Daoyan, Yu Jun 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.