Installation Guide

22
JG Speedfit
Plumbing and Heating
For further advice on chemical flushing agents and
inhibitor treatments, the following manufacturers
should be contacted:
Fernox Manufacturing Ltd: 0330 100 7750
Sentinel BetzDearborn Ltd: 0151 424 5351
Adey Innovations LLP: 01242 546717
Disinfection of hot and
cold water systems
Speedfit can be disinfected with chlorine (sodium
hypochlorite) after installation. Domestic systems
are disinfected with a solution of chlorine with a
concentration of 50ppm (mg/l) for one hour.
The concentration should not be less that 30ppm
at all draw o points after this time.
Other disinfection methods and chemicals (e.g. ozone
and hydrogen peroxide) are now in common use.
Only those specifically recommended as suitable for
contact with plastic plumbing systems and, where
necessary, employing specialist contractors may be
used with Speedfit.
Disinfection solutions must only come into contact with
the internal (wet) surfaces of the system. If any normally
dry surfaces of a Speedfit fitting come into contact with
disinfection solution the whole fitting must be replaced
immediately. The disinfection solution must be
immediately flushed out at all draw o points with fresh,
wholesome water at the end of the disinfection period.
The solution must not be left in the system.
Technical advisory service
Speedfit Technical Advisory Service is available
to assist on all aspects of using the Speedfit system. The
service is available between 8.00am and 5.00pm,
Monday to Friday on Telephone No. 01895 425333 and
Fax No. 01895 425350. Products within this Product
Guide are designed for use within UK plumbing and
heating installations or in other countries where similar
installation requirements apply. For information
on products suitable for use in other countries please
consult our Technical Advisory Service.
We take pride in the quality of our products and all
complaints are investigated thoroughly. If you have a
problem with a Speedfit product please return both fitting
and pipe to us for investigation. We will need at least
50mm of pipe to ensure an accurate analysis.
If there is a suspicion that the pipe is faulty, please
provide marking details from the pipe.
Metal foil tape
Speedfit aluminium Foil Tape can be used to fulfil the
NHBC requirements for the identification of location of
plastic pipes in or behind a wall surface by a metal
detector. It features a bright aluminium finish, rubber/resin
high-tack adhesive and quality siliconised backing paper
to allow the easy handling of short, cut lengths.
DO NOT stick the tape to the Speedfit pipe or fittings or
those of any other manufacturer.
Problem Identification
Burst or melted pipe
Pipe will be distorted showing
either a ‘Parrot beak’ look or a
long opening with the edges of
the pipe melted in a wave shape.
A Parrot Beak burst will happen when the water expands within the
pipework when it freezes. If the pipe has a melted appearance or gapes wide
open this could be due to external heat from a blow lamp or similar. It is
more likely that water has risen to a high temperature over 128c due to being
pressurised. Melting the pipework and exploding into steam at it is then
exposed to atmosphere.
A fitting or part of a
fitting dissolved
The fitting will have failed because of a chemical attack. The most
common attack is from acid based solder flux running down into the
fitting during soldering of a nearby copper fitting or flux coming into
contact with the fitting in some other way.
Weep from fitting The pipe has not been fully inserted up to the pipe stop or one or both of
the O-Rings have been damaged by burrs or sharp edges on the end of pipe.
See ‘What not to do’ on page 7.
The fitting has blown
o the pipe
If this happens on first fix, the most likely reason is that the pipe has not
been fully inserted into the fitting, up to the pipe stop, and the system has
not been pressure tested. If the collet (gripping device) is missing everything
will blow out. If the collet is there and the pipe support is still inside the
connector but the pipe has still blown out, this means that full insertion
had not been accomplished.
Common problems and identification