Kommercial Industrial Rainwater Systems
Technical Data Sheet
Document Reference: TDS-RW-IND-001
Issue Date: February 2026
Systems: Kommercial 160mm and Kommercial Extra 200mm
Product Description
The Kalsi Kommercial industrial rainwater systems provide maximum drainage capacity for the largest commercial and industrial applications. Available in 160mm and 200mm widths, these heavy-duty systems handle extreme water volumes from warehouses, factories, distribution centres, and large commercial developments.
System Variants
Kommercial 160
| Dimension | Value | Tolerance |
|---|---|---|
| Profile width (top) | 160mm | ±1mm |
| Profile depth | 90mm | ±1mm |
| Wall thickness | 3.0mm | ±0.2mm |
| Available lengths | 4m | ±5mm |
| Downpipe diameter | 110mm round | - |
| Weight | 1.35 kg/m | - |
Kommercial Extra 200
| Dimension | Value | Tolerance |
|---|---|---|
| Profile width (top) | 200mm | ±1mm |
| Profile depth | 100mm | ±1mm |
| Wall thickness | 3.5mm | ±0.2mm |
| Available lengths | 4m | ±5mm |
| Downpipe diameter | 110mm round | - |
| Weight | 1.85 kg/m | - |
Hydraulic Performance
Gutter Flow Capacity
| System | Gradient | Flow Rate |
|---|---|---|
| Kommercial 160 | 1:600 | 4.20 L/s |
| Kommercial 160 | Level (centre outlet) | 6.00 L/s |
| Kommercial Extra 200 | 1:600 | 5.80 L/s |
| Kommercial Extra 200 | Level (centre outlet) | 8.50 L/s |
Maximum Effective Roof Area
| System | Rainfall 75mm/hr | Rainfall 100mm/hr |
|---|---|---|
| Kommercial 160 | 315m² | 236m² |
| Kommercial Extra 200 | 408m² | 306m² |
Material Specification
| Property | Specification |
|---|---|
| Material | PVC-U (heavy duty formulation) |
| Standard | BS EN 607:2004 |
| Formulation | Lead-free, cadmium-free |
| UV stabilisation | Enhanced commercial-grade |
Colour Options
| Colour | Availability |
|---|---|
| Grey | Standard stock |
| Black | Made to order |
Product Range Summary
Kommercial 160
| Description | Part Code | Pack Qty |
|---|---|---|
| 160mm Gutter 4m | K160G4* | 3 |
| 90° Gutter Angle | K160A90* | 10 |
| 135° Gutter Angle | K160A135* | 10 |
| External Stop End | K160E1* | 30 |
| Internal Stop End | K160E2* | 30 |
| Running Outlet | K160O1* | 10 |
| Fascia Bracket | K160K1* | 30 |
| Union Bracket | K160U1* | 20 |
Kommercial Extra 200
| Description | Part Code | Pack Qty |
|---|---|---|
| 200mm Gutter 4m | K200G4* | 2 |
| 90° Gutter Angle | K200A90* | 8 |
| 135° Gutter Angle | K200A135* | 8 |
| External Stop End | K200E1* | 20 |
| Internal Stop End | K200E2* | 20 |
| Running Outlet | K200O1* | 8 |
| Fascia Bracket | K200K1* | 25 |
| Union Bracket | K200U1* | 15 |
Industrial Downpipe (110mm)
Uses standard 110mm soil pipe and fittings for downpipe runs - provides maximum capacity and connects directly to underground drainage.
Applications
Typical Installations
- Distribution centres and logistics hubs
- Manufacturing plants
- Retail parks and superstores
- Agricultural buildings (barns, sheds)
- Sports halls and leisure centres
- Airport and transport buildings
- Educational campuses
Installation Guidelines
Gutter Installation
- Maximum bracket spacing: 750mm (Kommercial 160), 700mm (Kommercial Extra 200)
- Near joints/fittings: Within 150mm
- Minimum fall: 1:600
- Expansion gap: 15mm at union joints
Structural Requirements
- Professional structural assessment recommended for large installations
- Steel support brackets may be required
- Wind loading calculations essential for exposed sites
- Consider snow loading in applicable areas
Multi-Outlet Configurations
For very large roof areas, consider:
- Multiple downpipe outlets along gutter run
- Centre outlets for level gutters
- Sump outlets for critical applications
Standards Compliance
- ✓ BS EN 607:2004
- ✓ BSI Kitemark certified
- ✓ Lead-free formulation
- ✓ ISO 9001:2015 manufactured
- ✓ UK manufactured
Technical Support
For commercial project specification support, contact our technical team:
Technical Helpline: [TBC]
Email: commercial@kalsiplastics.co.uk
Guarantee
Product Guarantee: 10 years against manufacturing defects
© Kalsi Plastics Ltd. All rights reserved.