Plumbing installation elbow is a common connection with fittings for connecting pipes at the corner, used to change the direction of the pipe. Other names: 90 ° elbow, right angle bend, bend love, stamping elbow, pressing elbow, elbow mechanism, welding elbow. Purpose: to connect two of the same or different nominal diameter pipe, so that the pipe for 90 °, 45 °, 180 ° and various degrees of turn. Bending radius less than or equal to 1.5 times the diameter of belonging to elbow, is greater than 1.5 times the diameter belong elbow Usage folding Edit this paragraph German standard DIN elbow elbow pipe installation in a common connection with a pipe connecting two nominal the same or different diameter tubes, so that the angle of the line to do some turns, nominal pressure 1-1.6Mpa. Short radius elbow 45 degrees short radius elbow length elbow 45 degrees elbow bend radius long radius elbows Categories Folding edit this section to divide the material is folded steel: ASTM / ASME A234 WPB, WPC alloys: ASTM / ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP911,15Mo3 15CrMoV, 35CrMoV stainless steel: ASTM / ASME A403 WP 304-304L-304H-304LN-304N ASTM / ASME A403 WP 316-316L-316H- 316LN-316N-316Ti ASTM / ASME A403 WP 321-321H ASTM / ASME A403 WP 347-347H cold steel: ASTM / ASME A402 WPL3-WPL 6 High performance steel: ASTM / ASME A860 WPHY 42-46-52-60-65 -70 steel, alloy steel, stainless steel, copper, aluminum, plastic, argon Ge Lek, PVC, PPR, RFPP (reinforced polypropylene). Elbow elbow elbow elbow elbow elbow Flexing conventional classification folded card sets elbow elbow elbow with a quick side elbow elbow elbow flange with seat 180 ° bend double socket bend single Reducing bearing socket elbow elbow elbow elbow seamless welded elbow Elbow 90 ° 45 ° elbow combination punching tee thread elbow elbow, elbow to push the system, high pressure elbow wear elbow Mechanical flange elbow elbow elbow groove stereo thread elbow elbow elbow external thread dedicated elbow elbow waterproof standard folding edit this section folding Japanese standards JIS B2311 standards Number Description Universal steel pipe fittings JIS B2312 JIS B2313 steel pipe fittings made of steel pipe fittings JIS B2316 steel socket welding pipe fittings pipe performance standards of the American Standard: Standard Number Description ASME / ANSI B16.9 factory-made forged steel pipe fittings ASME / ANSI B16. 11 socket welding and threaded forged fittings ASME / ANSI B16.28 steel welded small radius bends and hairpin ASME B16.5 Pipe Flanges and Flanged Fittings MSS SP-43 forged stainless steel pipe fittings MSS SP-79 socket weld reducer insert MSS SP-83 socket welding and threaded union MSS SP-97 socket welding, threaded and butt weld end of the overall strengthening of the folding-type header power standard standard Number Description GB2000 coal power plants, components and piping soda components of a typical design manual DL / T515-93 power plant piping elbow D-GD87-1101 parts and components of a typical implementation of the standards of design fittings Chemical Standard: Standard Number Description HGJ514 carbon and low alloy steel seamless pipe fittings HGJ528 slit HGJ10 pipe fittings Forged steel socket welding pipe fittings HGJ529 Forged steel socket welding, threaded and welded pipe sets HGJ-44-76-91 steel pipe flanges, gaskets, fasteners HG20592-20635 steel pipe flanges, gaskets, fasteners, Sinopec standard folding Standard Number Description SH3406 -1996 petrochemical steel pipe flange welded steel seamless pipe fittings SH3408 -1996 SH3409-1996 Forged steel socket welding pipe fittings SH3410 -1996 Forged socket welding pipe pieces SH3065-1994 petrochemical sharp bend tube furnace technology standard national standard folding Standard Number Description GB / T12459-2005 welded steel seamless pipe fittings GB / T13401-2005 steel plate pipe fittings GB / T14383 Forged steel socket welding pipe fittings GB / T17185-1995 steel flange pipe fittings into the oil standard implementation of standards: Standard Number Description SY / T0510-1998 steel pipe fittings SY / T5257-2004 steel pipe fittings steel elbow 02S403 country Marine standard folding building standards GB / T10752-1995 marine steel for welded joints CB / T3590-94 aluminum brass elbow