320mm Inspection Chamber
320mm Inspection Chamber

Polydrains 320mm inspection chamber complies with the following standards and building regulations:
• BS EN 13598: 2010
• Building Regulations Part H (Maximum invert depth of 0.6m)
Features & Benefits

320mm DIA
Chamber Base
- The chamber base allows for multiple connection variations in direction to any 110mm drainage layout.
- Supplied with two easy fit bungs to block off unused inlets.
- Total depth can be up to 0.6m using R320.

320mm DIA Chamber Base
(5 Inlet)
- The chamber base allows for multiple connection variations in direction to any 110mm drainage layout.
- Supplied with four easy fit bungs to block off unused inlets.
- Total depth can be up to 0.6m using R320.

320mm DIA
Chamber Riser
- Ribbed design on Riser
increases product durability.

320mm DIA Round Cover
& Frame (Includes seal)
- Ideal for tarmac, grass or gravel areas subject to pedestrian footfall only.
- (Class A15)1.5kn load rating classification.
- Enhanced slip resistant tread pattern.

320mm DIA Square Cover
& Frame (Includes seal)
- Ideal for paved areas subject to pedestrian footfall only.
- (Class A15)1.5kn load rating classification.
- Enhanced slip resistant tread pattern.
Dimensional Guide
320mm Inspection Chamber
All Polydrain manufactured products meet requirements of EN13598-1:2010

320mm DIA Chamber Base
DIA 320mm
Effective Height - 226mm
Channel Size 110mm
Code MB320

320mm DIA Chamber Base
(5 Inlet)
DIA 320mm
Effective Height - 226mm
Channel Size 110mm
Code MB320B

320mm DIA Chamber Riser
DIA 320mm
Effective Height - 158mm
Code R320

320mm DIA Round Cover & Frame
DIA 320mm
Code RCF320
