Allied Drainage

Allied Products

Overview

Material Combinations/ Technical Details

Allied drainage products are designed to complete and enhance underground plumbing and drainage systems. These include various types of chambers, drains and inspection units that enable smooth flow, easy maintenance and reliable connections between pipelines. Made from high-quality materials, they ensure structural integrity, leak-proof operation and long-term performance in both domestic and large-scale drainage networks.

Used in Projects

  • Residential buildings.
  • Villas.
  • Commercial complexes.
  • Parks.
  • Industrial facilities.

Applications

  • Surface Drainage
  • Inspection Points
  • Household Plumbing
  • Electrical & Utility access
SSV Group

Products Range

Drains

Surface water management systems with high-flow capacity for urban environments.

Conical Chambers

Precision-engineered vertical access chambers for complex utility networks.

Electrical Chambers

Heavy-duty inspection pits designed for cabling, telecom, and power grids.

Half-Conical Chambers

Innovative space-saving solutions optimized for offset or corner installations.

House Chambers

Residential-grade drainage chambers built for durability in domestic construction.

Product Catalog

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RCC Conical Sewer Chamber
The HD-20 Precast Sewer Chamber is a high-strength, reinforced concrete solution designed for efficient underground utility access. Its robust construction ensures long-term durability and structural integrity under heavy traffic loads.
Key Features

  • Heavy-Duty Build: Engineered to HD-20 standards for superior load-bearing capacity.
  • Ready-to-Install: Precast conical design allows for fast and easy site installation.
  • Corrosion Resistant:High-grade concrete mix ensures long life in harsh sewer environments.
  • Secure Access: Includes a matching reinforced cover with integrated lifting points for maintenance.
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HD-20 Precast Conical Chamber
This High-Strength RCC Conical Chamber is a precision-engineered, reinforced concrete solution for rapid and reliable underground drainage access. Its robust conical design ensures superior structural stability and load-bearing capacity for heavy-traffic municipal and industrial environments.
Key Specifications & Features

  • Material: High-grade reinforced concrete (M30–M40).
  • Dimensions: 1000mm–1500mm base diameter; 560mm–600mm top opening.
  • Load Class:HD-20 / Extra Heavy Duty (EHD) for maximum pressure resistance.
  • Quick Install: Precast modular design significantly reduces on-site labor.
  • Durable Build: Corrosion-resistant wall thickness of 100mm–125mm.
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Precast Concrete U-Drain
This Heavy-Duty Precast U-Drain is a high-performance reinforced concrete channel designed for efficient surface water management. Its modular U-shaped design ensures maximum flow capacity and rapid installation for highways, industrial sites, and urban drainage networks.
Key Specifications & Features

  • Material:High-grade reinforced cement concrete (RCC), typically M30 to M40 grade.
  • Design: Precision-molded U-shape with a compact layout for easy interlocking.
  • Load Class:Engineered for heavy-duty applications (T25 load class or higher) to withstand soil and traffic pressure.
  • Durability: High compressive strength and corrosion resistance for long-term service in harsh environments.
  • Installation: Factory-finished units reduce on-site excavation and labor costs.
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Industrial Square RCC Chamber
This Heavy-Duty Precast Manhole is a reinforced concrete solution for rapid underground utility access. Its modular square design and precision-fitted cover ensure maximum durability for industrial and municipal drainage systems.
Key Specifications

  • Material:High-strength Reinforced Concrete (RCC/SFRC).
  • Design: Pre-cast with integrated pipe inlets for fast setup.
  • Load Class:HD-20 (Heavy Duty) for high-traffic resistance.
  • Safety: Secure, reinforced cover with built-in lifting slots.
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RCC Eccentric Manhole Riser
This Heavy-Duty RCC Eccentric Chamber is a modular, high-strength solution for deep underground drainage. Its offset "eccentric" design allows for a vertical ladder ascent, ensuring safe and easy maintenance access while maximizing internal space.
Key Specifications

  • Material: High-grade reinforced concrete (M30–M40).
  • Design: Eccentric taper for safer, vertical access.
  • Connectivity:Pre-cast inlet/outlet holes for fast pipe installation.
  • Load Rating: Heavy-duty (HD) for high soil and traffic pressure.
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Precast Round Inspection Pit
This Heavy-Duty Precast Circular Chamber is a high-strength, reinforced concrete unit for rapid underground drainage access. Its modular design ensures superior structural integrity and fast installation for municipal and industrial projects.
Key Specifications

  • Material: High-grade reinforced concrete (M30–M40).
  • Design: Precision-molded circular rim for a secure, watertight cover fit.
  • Load Class:HD-20 (Heavy Duty) for high traffic resistance.
  • Efficiency: Pre-cast with integrated inlet/outlet points for immediate use.

Technical Specifications

Standard dimensions and load ratings for our chamber range.

1. General Technical Specifications

Product Name Standard Dimensions (mm) Load Class Material
Drains 1000 x 150 x 150 C250 / D400 Polypropylene / GRC
Conical Chambers Ø 600 Base / Ø 450 Top D400 Pre-cast Concrete
Half-Conical Chambers Ø 450 (Adjustable Height) B125 High-Density Polyethylene
Electrical Inspection Chambers 450 x 450 x 600 A15 (Pedestrian) Composite / Plastic
House Chambers 300 x 300 / 450 x 450 A15 / B125 UPVC / Concrete
* Custom sizes and heavy-duty (F900) load ratings are available upon request for industrial infrastructure projects.

2. Installation Guidelines

Product Type Installation Procedure Key Requirements
Drains & Channels
  1. Excavate trench with 100mm clearance on all sides.
  2. Lay 100mm concrete bedding (C20/25).
  3. Align channels using male/female joints.
  4. Haunch sides with concrete to finished level.
 Laser Level
Sealant Compound
Conical / Half-Conical Chambers
  • Prepare level 150mm granular base.
  • Lower chamber using certified lifting gear.
  • Connect pipes using flexible couplings.
 Lifting Equipment
Granular Sub-base
Electrical Inspection Chambers

Install on a compacted sand bed. Ensure duct entries are pre-drilled. Backfill with excavated material if non-load bearing.

 Duct Sealant
Compaction Tool
House Chambers

Direct bury for residential use. Ensure the frame and cover are set 5mm below the final paving or driveway surface.

 Recessed Cover
Screed Mix

3. Chemical & Environmental Resistance

Durability ratings for various site conditions

Substance / Factor Polypropylene (Drains) Concrete (Conical) HDPE (House/Elec) Resistance Level
Sulphuric Acid (10%) Excellent Poor Excellent High
Oils & Fuel Spillage Moderate Good Good Medium
UV Exposure (Sunlight) UV Stabilized Immune UV Stabilized High
Microbial Growth Resistant Moderate Resistant High
Groundwater Sulphates Full Class 2 Req. Full Variable
● Excellent: No long-term damage
● Moderate: Occasional exposure only
● Poor: Not recommended for use

4. Load Bearing Classes

Class Test Load Typical Use
A15 15 kN Pedestrians & Cyclists only
B125 125 kN Driveways & Footways
C250 250 kN Curb sides & Car parks
D400 400 kN Main Roads & Highways

5. Use Areas Guide

Product Primary Application Area
Drains Industrial Yards, Airport Aprons
Conical Chambers Main Sewer Lines, Highway Drainage
Elec. Chambers Telecom Hubs, Traffic Signal Junctions
House Chambers Back-garden Drainage, Private Drives
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