250nb PN16 CORE Full Face EPDM Gasket

The most commonly used gaskets in piping are standard flange gaskets in rubber or fibre, or spiral wounds. For particularly large pipes, gaskets can be manufactured in segments of rubber and joined together.

What Standards Cover Pipe Gaskets?

The most common standards are:

• BS10:2009: British Standard specification for flanges and bolting for pipes, valves and fittings.
• ANSI: the American National Standards Institute.
• ASA: the American Standards Association (now ANSI).
• ASME: the American Society of Mechanical Engineers The ASME B16.47 Series A and B took over from MSS SP-44 (Series A) and API 605 (Series B)
• ISO: International Organisation for Standardisation.

British and European Standards

The current standard for use in the UK and Europe is BS EN 1514-1:1997. This standard took over from BS 4865-1:1989 for PN flanges. Other standards include:

• BS EN 12560-1:2001: Flanges and their joints. Gaskets for Class-designated flanges. Non-metallic flat gaskets with or without inserts
• BS EN 12560-2:2013: Flanges and their joints. Dimensions of gaskets for Class-designated flanges. Spiral wound gaskets for use with steel flanges
• BS EN 12560-3:2001: Flanges and their joints. Gaskets for Class-designated flanges. Non-metallic PTFE envelope gaskets
• BS EN 14772:2005: Flanges and their joints. Quality assurance inspection and testing of gaskets in accordance with the series of standards EN 1514 and EN 12560