The threaded flange is a pipe flange manufactured with internal threads which fit perfectly with the external threads of a pipe, thus ensuring good connection of two pipes. The screwed flange N-STEEL provides is available in various sizes ranging from 3/8" to 40" (DN10 to DN1000).
Our threaded flange can be used in the area where welding is not allowed. It features high convenience in installation and maintenance. Although alloy steel flange comes with high intensity, it is not easy to be welded or has poor welding property. So, it is great to be furnished with threads.
N-STEEL threaded flange can be manufactured in a wide variety of materials and standards to suit your unique requirements.
Pressure of Threaded Flange
American series: ANSI CLASS 150, CLASS 300, CLASS 400, CLASS 600, CLASS 900, CLASS 1500 and CLASS 2500
European series: PN 6, PN 10, PN 16, PN 25, PN 40, PN 63 and PN 100
Types of Flange Face
American Series: Flat Face (FF), Raised Face (RF)
European Series: Flat Face, Raised Face
Available Materials of Threaded Flange
Carbon steel: A105
Alloy steel: A182 F1-F2-F5-F9-F91-F1-F12-F22
Stainless steel: A182 304-304H-304L-304N-316-316H-316L-316N-316N-321-321H 347-347H
Low temperature steel: A350 LF2-LF3-LF8
High performance steel: A694 F42-F46-F52-F56-F60-F65-F70
Standards of Threaded Flange
GB/T9112-2000, GB/T9114-2000, GB/T9124-2000
HG/T20592-2009, HG/T20614-2009, HG/T20615-2009, HG/T20623-2009, HG/T20635-2009
AFNOR NF E29-200-1-2007