To comply with BS EN 10242, fittings must meet strict criteria in the following areas: Threading: Threads must comply with
Every single fitting must be tested for leaks. This is usually done using an internal pneumatic pressure test (air underwater) at a minimum pressure of 5 bar.
Backnuts and running nipples utilize parallel threads complying with ISO 228-1. 3. Pressure and Temperature Ratings
BS EN 10242:1995 Threaded pipe fittings in malleable cast iron Bs En 10242 Pdf
Many manufactured fittings are designed to withstand high-pressure liquid and gas systems, with typical ratings up to 300 PSI (or 1500 PSI for specialized applications). 3. Types of Fittings Covered
The standard covers fittings used for the transmission of fluids and gases (such as water, gas, oil, and compressed air) in domestic, commercial, and industrial systems. ValvesTubesFittings.com Size Range: Elements with thread sizes from (DN 6 to DN 150). Operating Limits: Generally rated for working pressures of (Class 150) at temperatures between -20°C and 120°C Typical Uses:
Covers thread sizes ranging from 1/8" up to 6" (DN 6 to DN 150). 3. Pressure and Temperature Ratings To comply with BS EN 10242, fittings must
Standard and street (male-female) variations. Tees & Crosses: Equal and reducing, used for branching. Sockets & Couplings: Straight, reducing, and hex sockets. Unions: Taper seat or flat seat, vital for maintenance. Caps & Plugs: For capping ends. Nipples & Bushings: For reducing sizes. Why Use BS EN 10242 Compliant Fittings? Sourcing fittings that adhere to this standard ensures:
The PDF contains definitive charts detailing face-to-face dimensions and wall thicknesses required to calculate precise pipe lengths.
Used to alter piping direction by 90° or 45°. Types of Fittings Covered The standard covers fittings
Requirements for whiteheart or blackheart malleable cast iron.
Due to their robust design and mechanical resilience, these fittings are widely deployed across numerous sectors:
A key feature of BS EN 10242 is its defined , which are typically presented in a graph within the standard (see Figure 4 of the document). For instance, Class 150 fittings are generally rated for a working pressure of 25 bar within a temperature range of -20°C to 120°C.
The standard outlines dimensional and design requirements for a vast array of fitting configurations, including:
The standard is the European specification for threaded pipe fittings manufactured from malleable cast iron . First published in 1995 to harmonize European piping requirements, it replaced older national standards like BS 143 and BS 1256 for most common fitting types. A PDF of this standard provides technical guidelines for the design, material composition, and performance of these fittings used in the transmission of fluids and gases. 1. Scope and Application