This Flange is designed to be joined to a piping system by butt- welding. It is relatively expensive because of its long neck, but is preferred for high stress applications. The neck transmits stresses to the pipe, reducing stress concentrations at the base of the Flange. The gradual transition of thickness from the base to the neck to the wall thickness at the butt weld provides important reinforcement of the Flange. The bore of the Flange matches the bore of the pipe, reducing turbulence and erosion.

DIMENSION SPECIFICATIONS AS PER THE INTERNATIONAL STANDARD ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP, NACE

SIZE :
½" to 60" (As Per Customer Requirement)

CLASS :
150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN Standard ND-6,10, 16, 25, 40 Etc.

MATERIAL GRADE :
Carbon Steel Weldneck Flange : ASTM A105, ASTM A 694 F42

Low Temperature Carbon Steel Weldneck Flange : A350 LF2/A350 LF3

Copper Alloys Weldneck Flange : ASTM / ASME SB 61 / 62 / 151 / 152.
C 70600 (CU -NI- 90/10)
C 71500 (CU -NI- 70/30)
UNS NO. C 92200, UNS NO. C 83600,UNS NO C 10100,
C 10200, C 10300, C 10800, C 12000, C 12200

Nickel Alloys Weldneck Flange : Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22, C276

Duplex Weldneck Flange : ASTM A 182 UNS F 44, F 45, F51, F 53, F 55, F 60, F 61.

Stainless Steel Weldneck Flange : ASTM 182 F 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L.

Alloy Steel Weldneck Flange : ASTM SA 182 F1/F5/F9/F11/F22/F91

VALUE ADDED SERVICES :
Hot Dip Galvanizing
Test Certificate As Per EN 10204 - 3.1 & 3.2