EN 10241 fittings are designed for strength and are often preferred over malleable iron for demanding systems like those with potential water hammer issues.
- Material: Manufactured from mild steel forgings, solid bars, or welded/seamless steel tubes.
- Sizes: Available in nominal sizes from DN 6 to DN 150 (1/8" to 6").
- Threads: Female threads are typically BSP parallel, while male threads are BSP taper to ISO 7-1 (except for some specific fittings like running nipples).
- Pressure & Temperature:
- Maximum operating pressure is typically rated up to 25 bar (PN25).
- Maximum operating temperature is generally around 230°C.
- Fittings made from solid bar or forgings can withstand high hydrostatic test pressures (up to 150 bar) at ambient temperature.
- Finishes: Available as "self-colour" (black, finished with light oil to prevent rust) or with a zinc protective coating (hot-dip galvanised).
- Self-colour (black) fittings are suitable for welding and are often recommended for steam applications.
- Galvanised fittings provide corrosion resistance and are used in water or outdoor systems.
Typical Applications
These fittings are widely used in a variety of industrial and commercial settings for non-corrosive fluids.
- Process Steam Systems: Often used for low-pressure steam lines (under 10 bar).
- Compressed Air Systems: The inherent strength of the steel makes them suitable for high-pressure air applications.
- Water & Hot Oil Systems: Used in systems where temperatures do not exceed 230°C.
