Glass Reinforced Plastic (GRP) Pipes

Material of Construction (MOC)Glass Fibre Reinforced Polyester (GRP), Glass Fibre Reinforced Vinyl Ester
Size / CapacityDiameter 25 mm to 3000 mm
Pressure RatingPN 3 to PN 40
ApplicationsWater supply pipelines, cross-country pipelines, seawater transmission lines, municipal sewerage systems, irrigation trunk and distribution lines, power plant intake pipelines, desalination plants
StandardsIS 12709 – GRP Pipes for Water Supply, Sewerage and Industrial Use, IS 14402 – GRP Pipes for Chemical Plants, AWWA C950 – Fiberglass Pressure Pipe, AWWA M45 – Fiberglass Pipe Design Manual, ISO 10639, ISO 10467, ASTM D3517, ASTM D2996, BS EN 1796, BS EN 14364, ASTM D3262, AWWA C950
Industries ServedOil & Gas sector, onshore and offshore fluid transportation, government water supply departments, irrigation departments, water and wastewater treatment industries, power generation and desalination plants & Industrial Fluid Transportations

Our FRP / GRP Pipes & Fittings are engineered composite piping solutions designed for reliable fluid transportation in corrosive and demanding industrial environments. Manufactured using fiberglass reinforcement with high-quality polyester or vinyl ester resin systems, these pipes provide excellent resistance to corrosion, chemicals, and environmental degradation.

Due to their high strength-to-weight ratio and smooth internal surface, FRP/GRP piping systems allow efficient fluid flow while reducing friction losses and pumping energy requirements. Compared to conventional metallic pipelines, they offer longer service life, lower maintenance costs, and improved operational reliability. These properties make FRP/GRP pipes a preferred solution for water infrastructure projects, industrial process piping, and large-scale fluid transmission systems. 

Key Advantages

  • Smooth internal surface that minimizes friction loss and improves hydraulic efficiency
  • Lightweight structure, enabling easier transportation and faster installation
  • High structural strength, suitable for underground and above-ground installations
  • Long service life in harsh environments, reducing repair and replacement costs
  • High resistance to scaling and biological growth, maintaining pipeline efficiency
  • Excellent corrosion resistance for aggressive chemicals, seawater, and industrial effluents

Typical Applications

  • Water supply and municipal distribution networks
  • Seawater intake systems and desalination plants
  • Municipal sewerage and wastewater pipelines
  • Cross-country water transmission pipelines
  • Irrigation trunk and distribution systems
  • Power plant cooling water intake and discharge lines
  • Chemical and industrial process piping systems
  • Produced water and utility pipelines in oil & gas facilities
  • Seawater injection lines for offshore and onshore oil & gas fields
  • Firewater systems in refineries, offshore platforms, and petrochemical plants
  • Cooling water and utility pipelines in oil & gas processing plants
  • Subsea, offshore platform, and coastal marine pipelines
  • Ballast water and seawater circulation systems in marine installations
  • Onshore and offshore fluid transportation pipelines
  • Cooling water and service water pipelines in solar power plants
  • Process water and chemical transfer lines in pharmaceutical plants
  • Agricultural water conveyance and large-scale irrigation infrastructure
  • Industrial effluent and corrosive fluid handling pipelines in processing industries