Manholes

GRP manholes and chambers are made of FLOWTITE GRP pipes as an integral part of pipe installations. Their design is based on FLOWTITE GRP pipes and GRP plates, joined together with the use of polyester - glass fibre laminates. The technology used in the production process of GRP manholes and chambers 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.



Manholes and chambers form a part of underground gravitational and pressure systems, allowing the inspection and operation of pipelines and fittings, as well as the changing of 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 drain pits

Depending on country regulations, the finished manholes and chambers meet the demands of prEN 15383 and the requirements regarding tightness according to EN 1610 after installation.

GRP manholes made of FLOWTITE pipes 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