​SERVICE CHAMBERS, SECTIONS AND COVERS

​Cascade can offer through our approved suppliers and partners a wide range of access chambers and covers for all applications. Chamber sections are made from composite, meaning they are lighter than the concrete ones, with no loss to quality. 
​Key Features 
The chamber sections are DN400 loading and are BS5834 compliant. Other key advantages are:
​
  • UK Manufactured from 100% recycled post industrial PVC. 
  • Structural design - no concrete surround required. 
  • Far lighter than concrete. 
  • Massively reduced H&S implications for site personnel. 
  • Extensively used throughout the UK by most water utilities and their contractors. ​​
Composite large 900 x 600 chamber sections
Composite chamber section
Cascade Part No
Size 
Depth
​CHSEC430X280X075
430 x 280mm
75mm
CHSEC430X280X150
430 x 280mm
150mm
​CHSEC900X600X075
900 x 600mm
75mm
CHSEC900X600X150
900 x 600mm
150mm
CHBOS430X280
430 x 280mm base with off center hole
n/a
CHBFO430X280
430 x 280mm base
​with hole in center
n/a
Our stock sizes - others on request.
For more information please see our downloadable data sheet below. 
Cascade Composite Chamber Sections
File Size: 514 kb
File Type: pdf
Download File
D400 Surface Boxes 
D400 surface boxes for secure access to Fire Hydrants, Sluice Valves and Water Meters. These lightweight boxes offer strength and durability as well as as stability with a single piece cover. 
For more information please see our downloadable data sheet below. ​
D400 Surface Box TechSpec.pdf
File Size: 784 kb
File Type: pdf
Download File
Key Features. 
  • For use in a Group 4 Class D400 carriageway environment
  • Compliant with BS EN 124
  • Third party certified by BSI
  • Patented frame design with enlarged frame corners that help dissipate load
  • Complies with UK Highways Authority specification HA 104/09 with enlarged frame flanges and corners and the inclusion of lifting points
  • A patented safety keyway prevents accidental disengagement during the lifting operation. Also compatible with standard D400 lifting keys.
  • Three point suspension on covers for non-rock stability
  • Indexed covers ensure correct fitting
  • Manufactured from strong and highly durable ductile iron
  • Mechanical lifting points
Highway D400 Surface Box
Highway manhole covers are designed and manufactured to meet the enhanced requirements of national highway authorities’ HA 104/09 specification. The Highway range of access covers conforms to BS EN 124:2015 requirements and also includes patented safety provisions and design features to ensure safe and robust performance.
Clear Opening
(C x D)
Base Opening
(F x G)
Overall Frame
(A x B)
Frame Depth
​(E mm)
​900 x 600
900 x 624
1115 x 815
150
Can't find the size or type you need? Give the team a call on +44 (0)1424 777102 or email your enquiry to ​inbox@cascadeplc.co.uk and we're see what we can do.