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Viking Johnson MaxiFit Coupling for ductile iron, steel and PVC pipes, d 57-74 mm [Code number: MF57]

Article: MF57

Application purpose:

  • For connection pipes made of cast iron, steel, PVC, as well as some other materials (pipes made of PE are mounted using a sleeve) in various combinations
  • For neutral liquids at permissible operating temperature + 50 °С

Characteristics:

  • Operating pressure up to 16 bar
  • One type of pipe coupling made of different materials
  • The design provides easy and quick installation
  • The gap between the ends of the pipes is necessary to: compensate for thermal expansion, prevent transmission of vibration, compensate for sedimentation and facilitate installation/dismantling

Installation:

  • Pipes are inserted into a freely assembled freely assembled coupling, with a gap between the ends of the pipes of about 20 mm (chamfering not required)
  • Pressure ring bolts tighten all the way

Materials:

  • Pressure ring and adapter housing / Center pipe: Ductile iron according to BS EN 1563:1997
  • Bolts: Steel to BS EN ISO 898-1: 2009. Strength Class 4.8
  • Nuts: Steel in accordance with BS EN 4190: 2001. Grade 4
  • Sealing collar: EPDM
Nominal size Outer diameter Diameter (M) Length (L) Length and thickness of the adapter pipe (A x T) Landing gap Bolts. Quantity diam. x length Weight
  Min Max       Min Max    
mm mm mm mm mm mm mm mm mm kg
DN50 57,0 74,0 154,5 190,0 95,0 x 4,5 20,0 40,0 4-M12 x 180 3,0