GRE Piping Systems

Overview

Low-pressure GRE piping systems are designed for utility services and industrial fluid transmission, offering corrosion resistance, smooth hydraulic performance, and long service life. These pipelines are widely used in firewater systems, cooling water networks, and plant utility services where reliability and minimal maintenance are required.

Manufactured using glass fiber reinforced epoxy composite construction, GRE pipes provide an efficient alternative to steel pipelines in corrosive service environments.

Applications

Firewater systems
Cooling water networks
Industrial process utilities

Size & Operating Range

Nominal Diameter: DN 25 – DN 1500 (1” – 120”)
Pressure Classes: PN 6 – PN 50
Temperature Range: -10°C to +95°C
Suitable for buried or above-ground installations

Jointing Systems

Adhesive bonded bell & spigot joints
Butt & wrap laminated joints (field laminated)
Flanged joints for valves and equipment connections
Rubber seal lock joints

Material & Construction

Glass fiber reinforced epoxy composite
Filament-wound construction with controlled fiber orientation
Corrosion barrier liner layer
Structural laminate layer for hoop strength
Optional fire-retardant or UV-resistant outer layer

Material & Construction

Immune to rust, scaling, and MIC (microbiologically induced corrosion)
Lightweight construction reduces installation cost
Long service life (25–50 years)
Excellent hydraulic performance (Hazen-Williams C ≈ 150)
Minimal maintenance compared with steel or ductile iron

GRE Piping Systems

Category

GRP / GRV Piping Systems