Haihao Group manufacture & supply orifice flanges according to ASME B16.36-2015 standard,the product material can be carbon steel,stainless steel,alloy steel.The nominal size for orifice flanges are 1″-24″. 1inch SS304 RF Orifice Flange ASME B16.36-2015 Class 300 Orifice Flanges,Welding Neck,Threaded,and Slip-On Dimensions ASME B16.36 2015 Class 300 Orifice Flanges Welding Neck Threa ...

ASME B16.36-2015 standard covers pressure-temperature ratings,materials,dimensions, tolerances, testing, and making of flanges (similar to those covered in ASME B16.5) that have orifice pressure differential connections. Coverage is limited to the following: a) welding neck flanges Classes 300, 600, 900, 1500, and 2500.U.S. Customary units are presented in Mandatory Appendix I. b) slip-on and threa ...