Product Name: 180 ° elbow 90 ° elbow 45 ° elbow production standards: GB / T12459-2005 standard steel seamless pipe fittings GB / T13401-2005 standard steel pipe fittings made SH3408-96 Petrochemical Department seamless pipe fittings SH3409- 96 Department of steel pipe fittings petrochemical Ministry GD2000 GD87 ASME B16.9 standard pipe fittings ANSI standard ANSI ASME B16.28 standard short radius pipe seamless pipe fittings Japanese standard JIS B2311 Japanese standard JIS B2312 Japanese standard JIS B2313 seamless pipe fittings steel pipe fittings elbow DIN standard DIN2605 DIN2615 DIN2616 German standard DIN tee pipe fittings standard GB / T9112 ~ 9124-2000 JB / T81-94 ~ JB / T86-94 HG / T20593-20635-2009 SH3406-96 GB / T2506 -2005 GB10745-89 GBT4450-95 HG / T 21514 ~ 21535-2005 GD2000 GD87 ASME B16.5 ASME B16.47 JIS B2220 DIN2527 ~ DIN2642 BS4504 BS10 ISO7005-1 EN1092.1 Material: Stainless Steel: 304 321 304L 316 316L steel : 16Mn Q345 12Cr1MoV 15VrMo 10CrMo910 P11 P22 P22 P91 steel: 20 # Q235 A234 WPB wall thickness grade: Sch5S Sch10S Sch40S Sch80S Sch20 Sch40 STD Sch80 XS Sch100 Sch120 Sch160 XXS Classification: 1. angle: 30 ° elbow 45 ° elbow 60 ° elbow 90 ° elbow 180 ° elbows 2.R: Short Radius (1D) long radius elbows (1.5D) elbow 3D 4D 5D ... 10D in accordance with the sealing surface of the elbow points: FF RF M FM TG RJ (RTJ) 90 ° elbow pipe processing using high-quality, two-sided galvanized protection for pipes and fittings used in conjunction. There is a middle of the pipe joints with rolling process out of the recess, taper formed, can catheterization tight position, sealing, even when Concealed mortar cement into the duct is not easy; and consistent with the catheter wall thickness groove depth , smooth inner wall formation after catheter insertion, does not affect the threading. Connectors at both ends of each pipe near a (∮32 above two) set screws with threaded holes, the length of the threaded hole is larger than the wall thickness of the pipe joint, with the inner wall of the stamping process by pressing the tube wall after forming a projection Tapping the formation, increasing the number of threads so tight connection more secure. Set screws for the special, top hexagonal and a "+" character slots, and the other end was a nest-like; close to the required tightening screws until wring "neck" of the catheter and fitting into one, without having to do a ground cross wiring. There are five specifications, Φ16mm, Φ20mm, Φ25mm, Φ32mm, Φ40, Φ50mm corresponding supporting the use of a catheter.