Carbon Steel Blind Flanges – ANSI B16.5, RF, Class 150/300

These Carbon Steel Blind Flanges are manufactured in compliance with ANSI B16.5 dimensional standards and are used for sealing the ends of piping systems. Designed with a raised face (RF) configuration, they provide a secure, gasket-compatible sealing surface suitable for high-integrity joint assemblies. Each flange is finished with a black anti-corrosion coating, offering resistance to atmospheric and mild industrial environments. Typically available in sizes ranging from 6” to 12”, and rated for Class 150 or Class 300 pressure, these flanges are suitable for service in oil & gas, petrochemical, and industrial process applications. Precision-drilled bolt holes per ANSI B16.5 ensure compatibility with standard flange connections in critical pipeline networks.

Specification:

– Product Type: Blind Flange (no bore)
– Material: Carbon Steel (forged or plate)
– Face Type: Raised Face (RF)
– Size Range: Estimated 6" to 12" (DN 150 to DN 300)
– Pressure Class: ANSI Class 150 / Class 300 (to be confirmed)
– Standard: ANSI / ASME B16.5
– Coating: Black anti-corrosion finish
– End Connection: Flanged – matches ANSI B16.5 bolt patterns
– Bolt Holes: As per B16.5 – drilled to standard bolt circle
– Application: Piping termination, pressure testing, line isolation
– Industries: Oil & Gas, Petrochemical, Chemical, Industrial Plants
– Manufacturing Method: Forged or cut from plate
– Markings: Size, rating, heat number, material grade (if visible)
– Country of Origin: To be confirmed from markings
– Testing: Dimensional & visual inspection; optional MTC available

For further specifications or to inquire about this equipment and ReflowX's logistics services, Please contact ReflowX at info@reflowx.com