Petromet Flange Inc. is offering a quality range of BS 4504 FLANGE PN6-PN40 Flanges, which is high in durability and can withstand extreme conditions. These BS 4504 FLANGE flanges are available in different grades, class, and other technical specifications as per the client’s requirements. Our range is commonly used to connect other threaded components in low pressure and non-critical applications.
BS Flange Manufacturer Petromet Flange inc. supplies BS flanges according to BS 4504 SEC 3.1, BS flange in forged steel, Stainless Steel, Carbon steel etc. include type of Welding neck Flanges, Plate Slip-on Flanges, Screwed Boss Flanges etc
British Standard BS 4504 : Section 3.1 : 1989 – Circular Flanges for Pipes, Valves and Fittings (PN Designated), Specification for Steel Flanges. This covers flanges in nominal pressure ranges PN 2.5 to PN 40 and nominal sizes up to DN 4000 (see table below). BS 4504 substantially agrees with ISO 7005-1 : 1992 (E) Part 1 : Steel Flanges.
BS 4504 : 1969 is still commonly used. This older standard allows for manufacture from bar, whereas the latest standard specifies that forging or plate are to be used, which can be significantly more expensive. There are minor differences in dimensions between the two versions. The following tables are based on the later version.