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Welding neck Flange

Product name: Welding Neck Flange (Long welding neck flanges)
Welding neck flanges are designed to connect by butt weld type. The steel WN flange is relatively expensive, for long neck or long tapered hub structure.The gradual transmition of thinkness and butt weld joint, both reduce stress concentration of flangs, makes weld neck flange very resistant to dishing and a very sturdy connection. 

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Standard and Scope:
 
Size: NPS 1/2"～72" DN15～DN2000                            
Pressure Rating: Class 150～2500 PN2.5~PN160                
Connection: RF(raised face, most comment), RTJ(ring type joint),FF(flat face) and so on
Material: Carbon steel , Stainless steel, Alloy, A105, 20, LF2, 304, 316, 304L,316L, and so on
Main Standard: : ANSI, API, BS, EN, JIS, GB, GOST, MSS, SP, AWWA 
ASME B16. 5（for NPS≤24）; ASME B16.47 series B、API 605 or ASME  B16.47 series A、MSS SP-44（for NPS＞24）; BS EN1092-1, DIN2543,DIN2544, DIN2545, DIN2546; GOST 12821   

Design and feature
 
Suitable for high temperature environment and high pressure, also normally used for normal application with higher requirement.
The inside diameter of the flange will match the inside diameter of pipe, reducing turbulence and erosiooon
 
Other flanges is also available
Slip on flanges, Socket welding flanges, Blind flanges,Thread flanges, Flat flanges, Sliding flanges, Anvhor flanges, Special industrial flanges.

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