GRE Piping Systems

Moving water. Building futures.

Products

GRP / GRV Piping Systems

GRE Piping Systems

Composite Tanks & Vessels

Standard Atmospheric Tanks
Large Atmospheric Tanks
Pressure Vessels & Special Tanks

Dual Laminated Systems

Pipes & Fittings
Tanks & Equipment

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

Applicable Standards & Codes

Standard

AWWA C950

AWWA M45

ASTM D2996

ASTM D3517

ASTM D3754

ASTM D4161

API 15HR

API 15LR

ASME B31.3

Description

Fiberglass Pressure Pipe

Fiberglass Pipe Design Manual

Filament-Wound Fiberglass Pipe

Fiberglass Pressure Pipe

Fiberglass Industrial Pressure Piping

Pipe Joints with Elastomeric Seals

High-Pressure Fiberglass Line Pipe

Low-Pressure Fiberglass Line Pipe

Process Piping

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