GRP Manholes & Components
GRP Manholes & Components
GRP Manholes are suitable for use in the corrosive environments including cooling water lines, storm water lines and sanitary sewers with the temperature range of 40°C to 65°C. The manhole is designed for internal non-pressure usage expect for the head of any contained liquid.
The manholes form an integral part of the sewerage/drainage line. They act as the junction of direction change and as collection point of the water flowing through the line. The inner surface of the manhole is laminated with GRP to the required thickness level so as to prevent corrosion from direct exposure to toxic substances. The GRP components include:
- Internal Benching (with suitable channels)
- Shaft (Liner)
- Cover Slab with suitable opening
- Reducer Slab of required dimensions
- Sealing Plates
- Outer Base (for double walled manholes)
- Outer Liner for the Shaft
Double wall GRP Manholes are supplied as completely assembled units. GRP assembled units of inspection chamber, collection chambers & House Connection Chambers are supplied in accordance with the project requirements.
Pumping Stations, Wet well Chambers, Washout & Air Valve Chambers etc., also use GRP units as its components of assembly.
The miscellaneous units including ladders, safety cage, gull
Another important application of GRP in sewerage project is the manufacture of concreting shutter/moulds.
General Information
Quick Step Manholes create a complete uncompromising system of the highest quality and meet the requirements of a wide variety of applications. Their design is based on GRP pipes and GRP plates, joined together with the use of polyester - glass fiber laminates. The technology used in the production process of GRP manholes guarantees that they are completely sealed, fully corrosion proof, have excellent durability and can be safely serviced and maintained. Manholes and chambers are monolithic products with defined composition and properties.
Purpose
Manholes form a part of underground gravitational and pressure systems, allowing for the inspection and operation of pipelines and fittings, as well as for changing the flow conditions of a medium, within the range of their intended use.
GRP manholes and chambers are primarily designed to be used for:
- inspection and maintenance of drains or sewers
- ventilation of drains or sewers
- flow conditions change of a medium (change of direction, change of pressure, change of water flow rate)
- cleaning and flushing of drains or sewers
- maintenance of water meters and fittings
- housing of pumping stations
- inlet drains pits
Quality Standards
Quick Step manufacture manholes are certified according to ISO 9001 and elements, frequent checks are made on the flow of raw materials.
Design and laminate specification of each manhole is permanently controlled to meet the requirements and standards of the customer’s specifications.
The raw material components are periodically controlled with regard to quality, consistence and their physical/ chemical properties. The finished manholes and chambers meet the demands of EN 15383 and the requirements.
Features & Benefits
Quickstep GRP manholes consist of a composition of high-tech materials and offer many features and benefits:
Non-corrosive
- Durable
- Safe
- Maintenance-free
- Internal and external corrosion resistance
One-piece wall structure
- Restricts infiltration
- Avoids exfiltration
Lightweight
- Easy handling
- Unloading with light equipment
- No heavy equipment necessary for installation
Easy installation
- Savings in installation
- time Smaller excavation
- No heavy footings
- No waiting time for curing of the base plate before installation
- Easy fabrication: additional pipe entries can be cut with standard power tools
- No assembling on site
- Minor grouting necessary
- Easy inspection
Reliable product
- Dependable
- Dimensionally stable
- Uniform design
