AVK FABRICATED COUPLING DI Pipes PN16

FOR DI PIPES - Zinc plated and passivated fasteners

Jim Marsden AVK UK Regional Sales Manager North

Jim Marsden

National Sales Manager Mechanical & Fabricated Fittings Water

The Series 258 is a fabricated coupling for Ductile Iron pipes. Maximum Working Pressure: Standard 16 bar - 0.8bar negative pressure. Up to 25 bar on request. Temperature Range: -10°C to +70°C. Insulation essential for temperatures of 0°C and below.

The Series 258 is a fabricated coupling for Ductile Iron pipes, suitable for use with water and neutral liquids (sewage)

Variant 258/30-006
Connection: Flanged
Material: Steel
PN: PN 16

Features

  • Can be fabricated in any size within the standard design range DN350 to DN1600+
  • Corrosion resistant construction
  • Short lead times
  • EPDM seals
  • Fusion bonded epoxy coating
  • Sheraplex coated bolt sets
  • Sealing range nominal diameter +2mm to -5mm
  • WRAS approved materials
  • Maximum angular deflection across the total length of the fitting:
     - DN600 = 8°
     - DN700 to DN800 = 6°
     - DN900 to DN1200 = 4°
  • Can be used down to 0.8 bar below atmospheric pressure
  • Sizes DN1200+ manufactured to order dependant upon application
  • Bolts and nuts available in zinc plated & passivated, stainless steel
  • Embodied carbon data available upon request
  • Options:
    • Can be manufactured to suit a specific pipe OD between 269mm and 1200mm. Further couplings to suit pipe OD's between 1200mm and 1600mm available dependent upon application.
    • For 25 Bar Version see 258/30-021 datasheet
  • Note:
    • This fitting is not designed for end load resistant applications

Downloads

Datasheet
Related Datasheets
Certificate(s)
Installation, Operation & Maintenance
Price list

Components

1. Gland ring Mild steel
2. Bolts Steel gr. 8.8, zinc plated, passivated
3. Seals EPDM
4. Body Mild steel
5. Washer Zinc plated grade 8 steel
6. Nuts Zinc plated grade 8 steel
7. Coating Epoxy

Test/Approvals

  • Hydraulic test according to 1.5 x PN
  • Hydraulic test: 1.5 x PN
  • Materials approved according to WRAS
  • Belgaqua approved material
  • Drinking Water Inspectorate Regulation 31 compliant
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