5.1.3 Polymer Fittings
polymer
fi
ttings are available in couplings, tees, elbows,
multi-port tees and plugs. All polymer
fi
ttings are produced from a
polyphenylsulfone (PPSU) material. See also REHAU
Technical Bulletin
TB265 Polymer Fitting Material - PPSU.
5.1.4 Lead Free (LF) Brass Fittings
LF brass
fi
ttings are available as couplings, tees, elbows,
plugs and transition
fi
ttings to NPT thread and copper solder
connections. All metal
fi
ttings are produced from ECO BRASS
®
(UNS
69300 or CW 724R). See also REHAU
Technical Bulletin
TB264
Lead-free Brass Fitting Material.
Fig. 5.5: Polymer and LF brass
fi
ttings
5.1.5 PEXa Compression Sleeves
compression sleeves are produced using a specially
formulated PEXa material and are designed speci
fi
cally for use with
fi
ttings and RAUPEX pipe. compression
sleeves have the following features:
- Co-extruded platinum-colored PE coating
- Squarely cut ends that can be slid over the pipe in either direction
- Grooved and roughened inside surface for locking the sleeve into
place once slid over the pipe and
fi
tting
Fig. 5.6: PEXa compression sleeves
5.1.6 Certi
fi
cations
The compression-sleeve
fi
tting system is certi
fi
ed to the
following standards:
- UL 1821
Standard for Thermoplastic Sprinkler Pipe and Fittings for
Fire Protection Service
- ASTM F877,
Standard Speci
fi
cation for Crosslinked Polyethylene
(PEX) Hot- and Cold-Water Distribution Systems
- NSF/ANSI 14,
Plastic Piping System Components and Related
Materials
- NSF/ANSI 61,
Drinking Water System Components – Health Effects
- NSF/ANSI 372,
Drinking Water System Components – Lead Content
- CSA B137.5,
Crosslinked polyethylene (PEX) Tubing Systems for
Pressure Applications
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