English | português | русский| Español

Our company


Hebei haihao high pressure flange & pipe fitting group was established in 1982, located in Mengcun County the hometown of pipe fittings in China.

Read More About Haihao Group

JIS B2220 Steel pipe flanges


This Standard specifies steel pipe flanges (hereafter referred to as “flanges”) of nominal size 10A to 1500A for nominal pressure 5K, 10K, 10K light type,16K, 20K and 30K which are used to join parts for piping, such as steel pipes and valves, in ordinary(1),pressure (2), high pressure (3), high temperature (4), alloy steel pipes (5), strainless steel pipes (6) piping for steam, air, gas, water, oil, etc. (7).


  • Piping using Carbon steel pipes for ordinary piping of JIS G 3452 and arc welded carbon steel pipes of JIS G 3457.
  • Piping using Carbon steel pipes for pressure service of JIS G 3454.
  • Piping using Carbon steel pipes for high pressure service of JIS G 3455.
  • Piping using Carbon steel pipes for high temperature serivce of JIS G 3456.
  • Piping using Alloy steel pipes of JIS G 3458.
  • Piping using stainless steel pipes of JIS G 3459 and large diameter welded stainless steel pipes of JIS G 3468.
  • Integral flange, which is to be used as part of some other equipment or components, shall also be within the scope of this Standard.

Weld Neck Flange
Integral Flange
Blind Flange
Socket Weld Flange
Threaded Flange
Plate Flange
Slip On Flange Type A
Slip On Flange Type B
Slip On Flange Type C
Loose Flange/Lap Joint Flange

Classification of flanges and the designation

Classification of flange Designation Figure
Welding flange Silp on plate flange SOP Silp on plate flange
Slip on hubbed flange SOH Slip on hubbed flange
Socket welding flange SW Socket welding flange
Welding neck flange WN Welding neck flange
Lap joint flange LJ Lap joint flange
Threaded flange TR Threaded flange
Intergral flange IT Intergral flange
Blank flange BL Blank flange

Types of nominal pressure 20 K and 30 K slip on hubbed flanges

Classification of flange Type Figure
Slip on hubbed flange Type A Slip on hubbed flange A
Type B Slip on hubbed flange b
Type C Slip on hubbed flange c

<< Back to Flanges

Share to: LinkedIn Twitter Facebook Google

Related Tags: Flange Standard (5)  JIS Flange (1)  

JIS B2220 Steel pipe flanges Related Posts :
AWWA C207-13 Steel Pipe Flanges for Waterworks Service
Italy Standard Uni 6089 Pn10 Lapped Joint/Loose Flange
ISO 7005-1 Metallic Flanges Part 1 Steel Flanges
GOST 12820 Steel Plane Welded/Plate Flanges
DIN 2576 PN10 Plate flange
Italy Standard Uni 2278 Pn16 Plate Flange
DIN 2502 PN16 Plate Flange
DIN 2638 PN160 Welding Neck Flange
EN 1759-1 Circular flanges for pipes,valves,fittings,steel flanges
ASME B16.47 Steel Flanges NPS 26 Through NPS 60

Haihao Group Twitter haihao group youtube haihao group facebook haihao group linkedin