Hastelloy Orifice flange unions are used in conjunction with orifice meters to measure the flow of liquids and gases using tapped or socket weld style meter connections located on the outside diameter of the flanges.

B16.5 ASTM A182 Orifice Flange, Fusion Bonded Epoxy Coating, EN 1092-2 PN16 Orifice Flange, ASME B16.5 Dual Hastelloy Orifice Flange, ANSI B16.5 Class 150 Flat Face Orifice Flange, Hastelloy C276 30 Inch Orifice Flange Stockiest.

Standards Specification:
Size : 1/2" to 48"
Specifications : ASTM A182
Rating: 150#, 300#, 600 (2.4640)#, 900#, 1500#, 2500#,
Material & Grade :
Stainless Steel :Grade: 304 (1.4301), 304L (1.4307), 304H (1.4948), 309 (1.4828), 309S, 310, 310S (1.4845) , 316 ( 1.4401), 316H, 316L( 1.4404 /1.4432) , 317, 317L (1.4438), 321 (1.4541), 321 H(1.4878), 347 (1.4550), 347H (1.4961), 904L (1.4539)
Duplex Steel:Grade: 2205 (1.4507)
Super Duplex SteelGrade: 2507 (UNS S32750) (1.4410) (UNS S32750)
Inconel :Grade: Inconel 600 (2.4640), Inconel 601 (2.4851), Inconel 625 (2.4856), Inconel 718(2.4668)
Incoloy :Grade: Incoloy 800 (2.4958), Incoloy 800H, Incoloy 800HT
Nickel :Grade: Nickel 200, Nickel 201
Monel :Grade: Monel 400 ( 2.4360), Monel K500, Monel R-405
Titanium :Grade: Gr.1 (3.7025) , Gr.2 (3.7035) , Gr.3:(3.7055) , Gr.5(3.7164/65), Gr. 7(3.7235) , Gr. 11 (3.7225).
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