Product name Osma
System components Base units
Chamber sections
Closer slabs
Cover slabs
Covers
Frames
Cross section Circular
 
 
 

Wavin offers Osma Inspection Chambers in 250, 300 and 450mm diameters, approved to BS EN 13598-1 for shallow applications. They are suitable for use in both adoptable and non-adoptable applications to a maximum depth of 0.9m, depending on the chamber and the application. A 500mm diameter chamber approved to BS 7158 for use down to 3m is also available in the Osma range.

250, 315, 450 and 500mm chambers comply with BS EN 1398-1:2010 and the 500mm chamber complies with the requirements of BS EN 7158:2001. All are Kitemarked and Sewers for Adoption 7 compliant.

Applications

For above ground access and maintenance inspection of buried pipework

  • Down to 0.6m deep under Building Regulations – Part H1
  • Down to 0.9m deep under SfA7 Typical Chamber Detail – Type 4

For loading applications up to 15kN (1.5 Tonne)

Key features and benefits

  • Multiple options for maximum installation flexibility
  • Fast, easy installation: no wet trades
  • Lightweight: no lifting equipment required
  • Push-fit shaft sections: one or more can be used to achieve required invert depth
  • Final shaft section can be cut to required length
  • No additional trench excavation required

Dimensions

  • Invert depth of base: 205mm
  • External shaft diameter: 315mm
  • Shaft section length: 150mm
  • Inlets/outlets: 110mm

Compliance

  • BS EN 13598-1: 2010 a
  • SfA7 Typical Chamber Detail – Type 4 (to max. 0.9m depth only)
  • Building Regulations – Part H1: Shallow only, to maximum depth 0.6m


Wavin offers Osma Inspection Chambers in 250, 300 and 450mm diameters, approved to BS EN 13598-1 for shallow applications. They are suitable for use in both adoptable and non-adoptable applications to a maximum depth of 0.9m, depending on the chamber and the application. A 500mm diameter chamber approved to BS 7158 for use down to 3m is also available in the Osma range.

250, 315, 450 and 500mm chambers comply with BS EN 1398-1:2010 and the 500mm chamber complies with the requirements of BS EN 7158:2001. All are Kitemarked and Sewers for Adoption 7 compliant.

Applications

For above ground access and maintenance inspection of buried pipework

  • Down to 0.6m deep under Building Regulations – Part H1
  • Down to 0.9m deep under SfA7 Typical Chamber Detail – Type 4

For loading applications up to 15kN (1.5 Tonne)

Key features and benefits

  • Multiple options for maximum installation flexibility
  • Fast, easy installation: no wet trades
  • Lightweight: no lifting equipment required
  • Push-fit shaft sections: one or more can be used to achieve required invert depth
  • Final shaft section can be cut to required length
  • No additional trench excavation required

Dimensions

  • Invert depth of base: 205mm
  • External shaft diameter: 315mm
  • Shaft section length: 150mm
  • Inlets/outlets: 110mm

Compliance

  • BS EN 13598-1: 2010 a
  • SfA7 Typical Chamber Detail – Type 4 (to max. 0.9m depth only)
  • Building Regulations – Part H1: Shallow only, to maximum depth 0.6m


 
 
 
Downloads
  • Inspection chambers product and installation multi-base
    Inspection chambers product and installation multi-base
    5pp 789.44KB
    Download
  • Inspection chambers product and installation shallow IC
    Inspection chambers product and installation shallow IC
    5pp 806.19KB
    Download
  • Wavin osma inspection chambers product and installation guide
    Wavin osma inspection chambers product and installation guide
    60pp 11.75MB
    Download
 
 
 
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