FRP Pipe for Sewage System & Fiberglass Pipe for Water Treatment Plant

FRP Pipe for Sewage System & Fiberglass Pipe for Water Treatment Plant

✅ Technical Requirements of FRP Pipes in Different Industries

1. Sewage / Wastewater Treatment (FRP pipe for sewage system)

Since the medium in sewage and wastewater treatment systems contains corrosive substances such as hydrogen sulfide and chlorides, pipelines used in this sector must offer high corrosion resistance, minimal maintenance, and long service life.
FRP pipe for sewage system is widely used in municipal wastewater networks due to its outstanding performance under harsh environments.

2. Water Treatment Plant (Fiberglass pipe for water treatment plant)

Pipelines used in water treatment facilities must comply with drinking water safety standards, which means the resin used must meet potable-grade requirements.
Fiberglass pipe for water treatment plant ensures drinking water safety. The inner surface of the pipe must be smooth to prevent sediment buildup or flow obstruction, and the system typically operates under medium to low pressure conditions.

3. Chemical Industry FRP Piping

• Designed to handle strong acids, alkalis, and highly corrosive media

• Suitable for high temperature and pressure environments

• Requires special chemical-resistant resins such as Vinyl Ester Resin

4. Thermal / Heat Exchange Systems

In applications involving high-temperature fluids, the pipelines must provide excellent heat resistance, high structural strength, and controlled thermal expansion to maintain long-term stability.

5. Other Corrosive Fluids / Industrial Applications

FRP pipes are also widely used for acidic and alkaline wastewater, seawater, and salt solutions, where media demand exceptional sealing performance, corrosion resistance, and anti-aging properties during long-term continuous operation.

✅ Key Design Standards & Performance Requirements

Performance Requirement	Why It Matters	FRP Advantages
Corrosion resistance	Chloride, sulfate, H₂S corrosion	Resin selection ensures durability
Strength & stiffness	Underground loads, pressure rating	High tensile & compressive strength
Hydraulic efficiency	Avoid clogging and scaling	Smooth inner surface
Leakage prevention	Environmental safety	Excellent joint design
Longevity	30–50+ years life cycle	Lower lifecycle cost
Health & safety	Drinking water compliance	NSF/ANSI certification available

✅ Material Selection Guidance & Comparison with Other Pipes

Comparison Factor	FRP Pipe	Others
Corrosion resistance	Excellent	Iron & steel easily rust
Weight	Light	Steel is heavy
Installation cost	Low	Requires heavy machinery
Maintenance	Very low	Frequent repairs
Lifespan	50+ years	Shorter in corrosive media

For readers interested in a detailed comparison between FRP pipes and other common materials such as steel, PVC, and HDPE,
👉 check out our in-depth article: FRP Pipe vs Other Materials – Performance Comparison Guide

✅ Application Case & Engineering Insights

A large-scale sewage treatment plant in Almaty, Kazakhstan, serves approximately 500,000 residents. The region experiences extremely cold winters, with temperatures often dropping below -25°C. Traditional metal pipelines were prone to freezing, cracking, and corrosion, which led to frequent leaks and high maintenance costs.

The project owner sought a solution that offered corrosion resistance, low-temperature durability, lightweight yet high strength, and a long service life for their new sewage collection and transmission system.

Solution: Henry Fiberglass FRP Pipe System

After multiple technical evaluations, the client chose the Henry Fiberglass FRP pipe system (fiberglass reinforced plastic pipes) as the final solution.

• Diameter range: DN400–DN1200

• Pipe type: Buried filament-wound structure

• Resin system: Vinyl Ester Resin for enhanced chemical resistance

• Connection method: Double O-ring bell-and-spigot joint with laminated reinforcement

• Design pressure: 0.6 MPa

• Design service life: 50 years

Client Feedback

“Henry Fiberglass FRP pipes are not only reliable in quality but also easy to install. Even under our extreme winter conditions, the pipes performed with excellent stability. This has significantly reduced our maintenance workload.”
— Project Manager, Kazakhstan Sewage Treatment Plant

✅ FAQ

1. Can FRP pipes be used for corrosive sewage? What is their service life?
Yes, FRP pipes are ideal for corrosive wastewater. Depending on the resin type and operating conditions, their service life typically exceeds 30–50 years.

2. What are common installation mistakes to avoid?

• Poor joint sealing (incomplete adhesive curing or uneven bolt tightening), which can lead to leakage or environmental contamination

• Insufficient pipe supports or incorrect spacing causing deformation

• Misaligned joints or improper insertion depth

• Incorrect burial depth, resulting in damage from external loads

• Improper resin ratio or curing temperature, leading to weak joints and reduced corrosion resistance