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MultiNUPI is a multilayer piping system complete with mechanical pressure and push fittings for plumbing and heating installations.

 

MultiNUPI is suitable for the conveyance of  drinking water and is in conformity with Ministerial Decree no.174 dated 6th April 2004 released by the Italian Ministry of Health.

 

 MultiNUPI pipe is a multilayer pipe composed of:

  • High density polyethylene (HDPE)
  • Adhesive layer
  • Aluminium (central layer)
  • Adhesive layer
  • Polyethylene (PE-RT) 

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MultiNUPI pipe is manufactured in compliance with UNI 10954 standard. The three materials are perfectly joined to each other thanks to an innovative technology resulting from avant-garde equipment.

 

MultiNUPI pipes and fittings are produced in NUPI Industrie Italiane S.p.A. plants and is packed non-insulated in coils (sizes from Ø14 mm to 26 mm) or bars (sizes from Ø16 mm to 63 mm) or insulated in coils (sizes from Ø14mm to 26 mm).

 

MultiNUPI can be used also for Refrigeration and Cooling Systems. For these applications, NUPI Industrie Italiane S.p.A. manufactures and sells its multilayer pipe code TMULCOF specially designed for cooling systems. It is a multilayer pipe coated with a special insulating closed cell PE FOAM available in sizes Ø16x2 - Ø18x2 - Ø20x2,25 - Ø26x3 .

 

MultiNUPI brass or PPSU mrchanical pressure fittings are made of:

  • A brass body
  • A brass or PPSU body (PPSU is Poliphenylsulphone, a techno polymer that can withstand very high or low temperatures, resistant to shock and high pressure)
  • EPDM O-ring
  • Stainless steel clamping bush with opening at one end in order to check the insertion depth
  • Retaining bush and plastic isolation

 

Fittings with brass body are available from size 14mm to size 63mm and fittings with PPSU body are available from size 14mm to size 32mm.


The connection is guaranteed by the compression of the external clamping ring on the fitting at the pipe end. The water and mechanical tightness is given by the grooves on the fitting. Once pressed it grips to the inner surface of the pipe and to the EPDM O-ring.

 

Push fittings
Brass push fittings are available from Ø16mm to Ø26mm and consist of:
• A brass body
• Double O-Ring

 

The fitting is made entirely of brass and has a double o-ring seal combined with internal thread which prevents the escape of the pipe while allowing its release thanks to the rotation of the outer coupler.


The type of fitting makes the installation simple and secure. The only tool needed for the installation is a spe­cial universal reamer that can calibrate and flare the pipe at one time.


The pipe is press fitted into the fitting and, thanks to the hole in the bush, you can check that it has reached a complete stop. The fitting can be also removed and used again.


The system, suitable for the conveyance of food liquids, is made with materials conforming to international Stan­dards.

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