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Galvanized carbon steel press fittings Ø > 54 mm


M/F 90° elbow

Elbow with M profile press ends of the FRABOPRESS C-STEEL BIG-SIZE series, with EPDM elastomeric sealing element, for unalloyed carbon steel pipes.

The fittings of the series are suitable for closed circuit heating/cooling systems, closed circuit water/fire prevention systems (sprinkler), distribution of inert gases and compressed air.

technical details
Profilo_M  M Profile diametro From 67 to 108 mm

Acciaio_al_Carbonio_(materiale_1.0034_per_i_raccordi_1.0220_per_i_tubi) Carbon steel

qb-c-steel izv  zu


EPDM Black -10° / +110° C EPDM_nero

Pipes to be used

The system pipes are electro-welded using hot zincplated strip with an extra layer of zinc over the soldering. They are therefore zinc-plated inside and outside, hence guaranteeing maximum protection against corrosion. Pipes with only outside galvanisation are also available.

Standards compliance

  • UNI EN 10226-1
  • UNI EN 10305-3
  • UNI EN 11179 Classe 1


Not suitable for drinking water

The system IS NOT SUITABLE FOR DRINKING WATER, as highlighted on each piece by the special red marking

The system is suitable for closed circuit installations

FRABOPRESS C-STEEL BIG-SIZE range is perfect for the installations of closed-circuit heating/cooling systems, closed-circuit water systems, firefighting systems (sprinkler), compressed-air systems and distribution of inert gases.

  Fields of application Pmax
riscaldamento Heating
(closed circuit)
10 0°/+110°C
raffreddamento Cooling
(closed circuit)
10 -10°/+110°C

Oil free compressed air (residual oil < 5 mg/m³)

fino a 10 30°C
industriale Industrial installations    
sprinkler Sprinkler 10 Tmax 30°C
  • Easy and quick installation, typical of pressing technique.
  • Excellent hydraulic and mechanical seal.
  • Perfect material to contain system construction costs.
  • Total protective galvanizing (both externally and internally).
  • Gaskets can be fitted without welding, eliminating the risk of fire in more hazardous situations (working in older buildings, furnished rooms, etc.).
  • No need for dangerous gas pumps or containers, completely eliminating the need to make the connections required by law.
  • Elimination of all welding materials, with inevitable cost benefits.
  • Junctions free from burning or rings with an excellent immediate visual impact.
  • Integrity of pipe insulation thanks to the absence of heat sources.
  • Increased wall thickness to ensure the reliability and durability of junctions and fittings.
  • Polygon-shaped press designed to ensure maximum resistance to traction and torsion stresses.
  • Precision cleaning of internal surfaces to eliminate oily residues due to processing and to ensure protection against rust under all operating conditions.
  • pdf
    1- Technical Data Sheet - FRABOPRESS C-STEEL BIG-SIZE
  • pdf
    3- Frabo installer training manual - UK Market
  • pdf
    3- Technical Catalogue - FRABOPRESS C-STEEL BIG-SIZE
  • pdf
    4- Certification Institut Za Varilstvo - FRABOPRESS C-STEEL BIG-SIZE
  • pdf
    4- Certification QB (CSTB) - FRABOPRESS C-STEEL BIG-SIZE
  • pdf
    4- Certification SZU - FRABOPRESS C-STEEL BIG-SIZE
  • pdf
    5- Big-Size - Installation tools approved by Frabo
  • docx
    6- Specification - FRABOPRESS C-STEEL BIG-SIZE


Dimensions Manufacturer Pressing Tool³ Chain³

76,1 mm

88,9 mm

108 mm


ECO301 (230V)

ECO3 (230V)  

Adaptor: ZB323¹ / ZB324² + Press Collars: M-Profile “SNAP-ON” or Classic (Round with fastening)

Adaptor: ZB321¹ / ZB322² + Press Collars: M-Profile Classic (Round with fastening)

76,1 mm

88,9 mm

108 mm




Adaptor: ZB221¹ / ZB222² + Press Collars: MProfile “SNAP-ON”

Adaptor: ZB221¹ / ZB222² + Press Collars: MProfile Classic (Round with fastening) 

76,1 mm

88,9 mm

108 mm

Klauke UAP4L Adaptor: SBKUAP4 + Press Collars: M-Profile Press Collar model LP 

76,1 mm

88,9 mm

108 mm

Klauke UAP100L Press Collars: M-Profile Press Collar model HP

¹ to be used for diameter 76,88.9 and for the 1st pressing action on diameter 108;

² to be used for the 2 nd pressing action on diameter 108;


The tools and the chains must be operated and maintained according the manufaturer’s specification.

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