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ASME B16.5 18" *CL300lb Stainless Steel Welding Neck Flange

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Last update: 2017-12-21 16:18
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WELDING NECK FLANGES are distinguished from other types by their long tapered hub and gentle transition of thickness in the region of the butt weld joining them to the pipe. The long tapered hub provides an important reinforcement of the flange proper from the standpoint of strength and resistance to dishing. The smooth transition from flange thickness to pipe wall thickness effected by the taper is extremely beneficial under conditions of repeated bending, caused by line expansion or other variable forces and produces an endurance strength of welding neck flanged assemblies equivalent to that of a butt welded joint between pipes, which, in practice, is the same as that of unwelded pipe. Thus this type of flange is preferred for every severe service condition, whether this results from high pressure or from sub-zero or elevated temperature, and whether loading conditions are substantially constant or fluctuate between wide limits.

DN:10~1000

PN:1.0--------58.0

American Series:CLASS 150, CLASS 300, CLASS 400, CLASS 600, CLASS 900, CLASS 1500, CLASS 2500 and CLASS 6000.

European Series:PN 2.5, PN 6, PN 10, PN 16, PN 25, PN 40, PN 63, PN 100, PN 160, PN 250, PN 320, PN 400 Flange Facing Types:Flat Face (FF), Groove (G), Ring Joints Face(R)

Standard:HG20592, ASME16.5-2009, DIN2633, ANSI, JIS. Material:195,Q235,20II,16Mn,20Mn,304,304L,316,316L,321 or as required.

Surface treatment:Transparent oil, rust-proof black oil or hot galvanized.


Special equipment manufacture license:manufacture license of special equipment of P.R.C Marking:according to client’s requirement.

QC staff:10-15.

Inspection:in-house and the third party.

Used for:petroleum, chemical, power, gas, water, line pipe, heat exchanger, shipbuilding, construction, etc.

Tolerance:not less than +_8% of normal wall thickness. Keyword:slip-on flange, SO flange, A105 slip on flange Our

objective:Survival by quality and development by credibility. Special design available to all the production process is made according to clients’requirements strictly.

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