Robinson Valve Co.,Ltd ROBINSON VALVE

Carbon Steel Tee Pipe Fitings

Design Standard
Seamless elbow:1/2"~24" DN15~DN600 Welded Elbow: 4"~72" DN150~DN1800
Carbon Steel
Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc
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Carbon Steel Tee Pipe Fitings

Carbon Steel Tee Pipe Fitings

Robinson Valve provide seamless pipe tees and welding pipe tees,which can also be divided into equal tees and reducing tees.



Out Diameter standard tolerance: ODS1%*OD OD ensure
Inside Diameter standard tolerance:ID^1%*ID ID ensure
Wall thickness not less than THK*0.875 Trachea interface straight segment
Director Length Standard tolerances (value = C2 and C1 value) Machining
Manifold Height Standard tolerances (R arc branch office standard)  
Bevel Angle 31 34°smooth Form and position tolerance Provide true MTC
Geometric Tolerance all under tolerance No tire marks, bulge
Exterior No pits, folds and cracks, bevel end injured Provide true single material
Material ensure chemical elements and mechanical properties Alloy <170
Selection Must be new material (in the same year or less than 6 months). Fatal flaw
Hardness Cold forming must be annealed, annealed hardness <150HB)  
NDT Eligible magnetic particle inspection, to ensure that no cracking phenomenon tee  
Sandblasting / painting paintting/No residual oxide layer, oxide layer  
Marking Carbon steel pipe fittings 40 laser typing, more than 50 stenciled lettering.  



ASME B16.9-2007 
ASME B16.25-2007
ASME B16.5-2007
EN10253-1-1999 EN10253-2-2007 EN10253-3-2008 EN10253-4-2008
DIN2605-1-1992 DIN2605-2-1995
JIS B2311-2009 JIS B2312-2009 JIS B2313-2009
GB/T12459-2005 GB/T13401-2005 GB/T10752-2005 
SH/T3408-1996 SH/T3409-1996
SY/T0609-2006 SY/T0518-2002 SY/T0510-1998 
DL/T695-1999 GD2000 GD87-1101
HG/T21635-1987 HG/T21631-1990 

Seamless elbow:1/2"~24" DN15~DN600
Welded Elbow: 4"~72" DN150~DN1800
Wall Thinkness 
sch10, sch20, sch30, std, sch40, sch60, xs, sch80, sch100, 
sch120, sch140, sch160, xxs, std,sch5s, sch20s, sch40s, sch80s
Maximum thickness: 120mm 

Carbon steel: ASTM/ASME A234 WPB、WPC
Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911 
Stanless 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
Low-temperature steel:ASTM/ASME A402 WPL 3-WPL 6
High performance: ASTM/ASME A860 WPHY 42-46-52-60-65-70

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