Welding Neck Flanges

Neck flange diameter range: DN10~DN600 Specification: Class 150#, 300#, 400#, 600#, 900#, 1500#, 2500# Size As per customers requirement Face type FF, RF, LJ, RTJ, TG Pressure 150bls to 2500bls... Neck flange is a steel pipe flange with neck welding. It is a flange that connects steel pipe, pipe fittings and so on through fillet weld to equipment or pipe. Neck flange diameter range: DN10~DN600. Specification: Class 150#, 300#, 400#, 600#, 900#, 1500#, 2500# Size As per customers requirement Face type FF, RF, LJ, RTJ, TG. Pressure 150bls to 2500bls Painting Yellow varnish, black paint. Rust oil and Zn Packing: Plywooden cases and pallets Standard: ANSI, JIS, BS, DIN, UNI, EN, GB, AWWA, API, MSS Type: Welding neck flange, Socket welding flange, slip-on flange, Thread flange, Lap joint flange, Blind flange, 8-Blind flanges, Orifice flange function Neck flange is a flange that connects steel pipe, fittings, etc into flanges through fillet welds to equipment or pipes, just like plate flanges. Sealing form The sealing surfaces of the flange with neck are:Protruded (RF), concave (FM), convex (M), tenon (T), groove (G), full plane (FF). Advantages: neck flange is also a flange, because of a short neck, thus improving the strength of the flange and the strength of the flange. So it can be used in higher pressure pipes. Disadvantages: higher cost than plate flange, because of its shape characteristics easier to bump in transit. The difference between flange with neck butt welding and flange with neck 1. The weld form is different: the weld form between the flange and the pipe is fillet weld, but the weld form between the flange and the pipe with neck butt welding is the circumferential weld; 2. the material is different: the material of the flange with neck is machined by the ordinary steel plate which meets the requirement of thickness, while the material of the flange with the butt welding with the neck is mostly machined by forging steel; 3. nominal pressure is different: nominal pressure of flange with neck is 0.6-4.0MPa, and nominal pressure of flange with neck butt welding is 1--25MPa grade. Marking According to customers’requirement If you require further information or you do not see what yo need in our web,please do not hesitate to contact us. Our customer service specialists will be happy to help you. contact us any

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