TF Brochure.Gary - Flipbook - Page 17
Plastic Piping Systems
Single wall plastic piping systems are a tried and
Installation is commonly solvent cement based
tested solution to many industrial and water utility
with other systems using the fusion approach.
requirements with a wide choice of materials and
manufactures there is a product to suit most
They offer a lightweight easy to install alternative
applications.
to traditional metal pipework offered as matched
systems that are smooth bore, corrosion free and
Choices include PVC-U, PVC-C, PP, ABS or HDPE
with good predicted service life. Ranges include
and many systems have the added benefit of
imperial and metric pipe and a broad selection of
WRAS and DWI approval.
fittings, valves and accessories.
WRAS regulations typically apply between the property
boundary and the point of discharge for any water
fittings that will carry or receive water from the
public mains water supply. The regulations provide
that the product should not cause waste, misuse,
undue consumption or contamination of the
water supply.
dwi Reg 31 approval relates to products used by
water companies in the treatment and distribution
of water supplies up to the point of delivery
to premises.
WRAS Product Approval: for complete products
that have undergone and passed Wras testing.
WRAS Material Approval: for non metallic materials
and components that have been tested to show
they have no adverse affect on water quality.
Approved products have been considered not to
affect the quality of the supply or to pose a risk
to public health.
As the regulations are designed for the wider
distribution network there are some exemptions
for certain materials and products that are deemed
to have a small surface contact area.
dwi Reg 31
Process Engineering Supplies
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