Fitting & Flange


Any machined component to join, pipes together or to another mechanical equipments is knows as fitting such as coupling, compression fitting, plumbing fittings, elbow and etc. without fittings.

Type Elbow 90° Long Radius (LR)
Elbow 90° Short Radius (SR)
Elbow 45° Long Radius (LR)
Elbow 45° Short Radius (SR)
Tee Equal
Tee Reducing
Reducer CON.
Reducer ECC.
Lap Joint Stub Ends
Hex Nipple
Size 1/2 “ – 48”
Thickness SCH 5 – SCH XXS
Ratting Class 150 lbs – 6000 lbs , High pressure
Material Carbon Steel (CS) , Stainless Steel (SS) , High Alloy Steel (AS)
Standard CS - ASTM A234 Gr. WPB , WPL6
SS - ASTM A182 Gr. F304 , F316 , F316L , F321
AS – A234 – WP5 , WP11 , WP22
ANSI B16.9 , B16.28
Origin Benkan Japan , Melesi & Metalfar Italy , BKL UK , Ks Tech Korea


A flange is an external or internal ridge, or rim (lip), for strength, as the flange of an iron beam such as an I-beam or a T-beam; or for attachment to another object, as the flange on the end of a pipe, steam cylinder, etc., or on the lens mount of a camera; or for a flange of a rail car or tram wheel. Thus flanged wheels are wheels with a flange on one side to keep the wheels from running off the rails. The term "flange" is also used for a kind of tool used to form flanges. Pipes with flanges can be assembled and disassembled easily.

Type Welding Neck (WN) Socket Welding (SW) Blind (BL) Lap Joint (LJ) Screwed Flange (SF) Plate Flange (PF)
Size WN ,SW,BL, LJ 1/2” - 72” SF , PF 1/2” - 12”
Ratting Class 150 lbs to 6000 lbs
Material Carbon steel (CS) , Stainless Steel (SS), high Alloy Steel (AS)
Standard CS ASTM A105 ,A105N
SS ASTM A182 Gr. F304 , F316
AS ASTM A350 Gr. F11 , F12
Dimension ASME B16.5