Welding Neck Flanges are butt welded to the pipe.
As Radiography is required for all welds in critical services, welding neck flanges are majorly used in such locations.
The thickness of the welding neck flanges needs to be specified for procurement which is generally same as the pipe thickness of the same size.
Welding neck flanges are more expensive and used in high temperature, flammable, toxic etc.
Specification:
Size: 1/2" (15 NB) to 48" (1200NB)
Standards: ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings.
Pressure Ratings: Class 150, Class 300, Class 400, Class 600, Class 900, Class 1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.
Material:
Carbon Steel Weld Neck (WN) Flanges: ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8
Stainless Steel Weld Neck (WN) Flanges: ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
Alloy Steel Weld Neck (WN) Flanges: ASTM A182 F1, F5, F9, F11, F22, F91
Special Alloy Weld Neck (WN) Flanges: Duplex, Super Duplex, Nickel Alloys
Flange Face Type: Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Coating/Surface Treatment: Anti-rust Paint, Oil Black Paint, Yellow lacquer, Zinc Plated, Hot Dip Galvanized
Value Added Services: CNC Machining, Customised Flanges
Testing certificate:
Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, Third Party Inspection Report as per client specification. Newrise can also offer its Products with Third Party Inspection.
Packing & Shipping:
Newrise emphasis on the packaging to ensure that there is no damage during transit. Threaded Pipe Flanges are packed in bubble wrap in wooden boxes or cases. You could also contact us for customized marking and package.