‌flanges are used for mating two segments of a pressure vessel. These parts are also widely used in shell and tube heat exchangers and other process equipment to mate various components. There are two common kinds of girth flange such as welded hub joint, loose type (without hub). Depended to design of equipment girth flange may has raised face gasket seating area. The seating area can be special surface finished which is suitable for better sealing and prevent leakage.
Our workshops have been equipped with modern machineries including CNC drilling machines in order to make any kind of girth flanges. All machining activities such as lathe machining, drilling and surface milling can be carried out exactly according to client's drawings and specifications. As all of drilling activities is programmed computer and done by state of art CNC machineries, there would not be any possible mistake caused by human.

The strict use of high quality raw material is guaranteed and proved by raw material certificate with each delivery. Material range is varied from ordinary carbon steel to alloy steel, all grades of Stainless Steel, non-ferrous (Brass, Al-Brass, Copper Nickel) and wide range of Clad Steel consisting of corrosion resistant materials.

ASME Material Specification
Carbon Steel: ASTM/ASME A105, A350 LF1, LF2, A266, A694, A765 Gr2
Alloy Steel: ASTM/ASME SA182 F1, F5, F9, F11, F12, F22, F51, A350- LF3
Stainless Steel: ASTM/ASME SA182 F304, 304L, F316, 316L, F310, F317L, F321, F347
Duplex Stainless Steel: ASTM / ASME SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61

Non Ferrous: ASTM / ASME B169, B171, SB 564 UNS 2200 ( NICKEL 200 ), UNS 4400 (MONEL 400 ), UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600 ), UNS 6601 ( INCONEL 601 ), UNS 6625 (INCONEL 625), UNS 10276 ( HASTELLOY C 276 ), SB 160 UNS 2201 (NICKEL 201 ),SB 472 UNS 8020 ( ALLOY 20 ) SB 61 UNS C 92200, SB 62 UNS C 83600, SB 151 UNS 70600, 71500, C 70600 ( CU -NI- 90/10), C 71500 ( CU -NI- 70/30), SB 152 UNS NO C 10100, C 10200, C 10300, C 10800, C 12000, C 12200.

Titanium: ASTME/ASME SB381 GR1 GR2 GR5 GR7 GR9 GR11