Although “plastics” are often grouped in a single category when
comparing plumbing systems, there’s actually significant differences
in how these plastics perform in modern plumbing systems.

FlowGreen Pipe and Fittings are the brand of choice for homeowners,
building owners, plumbers and builders looking for reliability and
high quality performance across all plumbing applications. Our
material meets all relevant international plumbing system
requirements and standards, regularly passing independent
inspections by third-party organizations.

Other plastics can not match the performance and reliability qualities
of FlowGreen Pipe and Fittings.


When considering the plastics for your plumbing system, FlowGreen
CPVC far surpasses other plastics, including:

Polypropylene (PPR)

FlowGreen Pipe and Fittings have distinct advantages over
polypropylene (PPR), the most prominent being a simple installation
process, higher temperature and pressure yields, and greater
chlorine resistance.

In using PPR for hot water applications, installers must choose
fiberglass reinforcement and a thicker pipe wall, which reduces the
flow and available fixture units. PPR also has higher thermal
conductivity, increasing energy consumption and costs as heat
leaves the system.

When considering erosion, PPR is susceptible to hot chlorinated
water and pieces of material can flake off, clogging fixtures and
appliances- many water heaters repaired in the late 1990’s were
due to PPR failures.

PPR also has a more difficult installation process. The fusion technique
requires a welding tool that heats up to 260°C, creating burn hazards
and increasing installation time. This installation technique is
especially difficult in tight and confined spaces. Additionally, PPR
needs more hangers and supports to avoid looping due to it
being a less rigid material.

green color ppr pipe and ppr fittings

Cross-linked Polyethylene (PEX)

Cross-linked Polyethylene (PEX) is a common material considered
in new systems, however it cannot match FlowGreen CPVC in terms
of service history, water quality and performance.

We have a dedicated page for comparing FlowGreen CPVC with PEX.

Polyethylene of Raised Temperature
Resistance (PE-RT)

Relatively new to the market, PE-RT (Polyethylene of Raised Temperature Resistance)
is a modified polyethylene plastic. Due to the infancy of the solution,
information about long-term performance of PE-RT plumbing systems
is not available. However, the chemical compounds PE-RT uses suggests
it will be similar in limitations as PEX in terms of chlorine induced
failures, biofilm formation potential, UV resistance and permeation.