John Mills Speedfit KM39767 - Manual (Page 3)

• Installation time reduced by up to 40%
• Pipe flexibility permits the cabling of pipe through less
accessible areas
• No risk of fire or flames from a blowtorch
• Easier to work in confined places
• A permanent leak-proof connection
• Corrosion free
• No scale build up
• Lower thermal diffusivity maintains safer surface
temperature
• Pipe elasticity can reduce the possibility of bursting
under freezing conditions
• Lead free and non toxic
• Less noise from water flow and expansion/contraction
• Long pipe lengths reduce fittings required
SYSTEM FEATURES
• All white system
• Truly demountable without damage to pipe or fitting
• Grip and seal connection
• Superseal Insert gives secondary seal
• Reduced pipe insertion force
• Lightweight and easy to handle on site
SYSTEM BENEFITS
As a result of long term test programmes and rigorous
quality standards, John Guest Speedfit Limited offer a 25
year guarantee against the defects in materials or
manufacturing of ‘PEM’, ‘PSE’ and ‘SFM’ Range
Plumbing
Fittings and Speedfit Barrier Pipe
manufactured by John Guest.
John Guest Underfloor Heating Products, which should
be installed and maintained in accordance with our
recommendations, carry a 2 year guarantee against
defects in materials and manufacture.
John Guest Plumbing and Heating Products are for use
with normal UK domestic plumbing and heating systems
and supplied in accordance with our Conditions of Sale.
GUARANTEE
Boats. The flexibility of the Speedfit System ensures it can
be cabled easily around the interior and hidden from view.
Caravans. Speedfit is ideal for caravan installations due
to its flexibility and its resistance to corrosion and freezing.
Exhibitions. The unique ability of the Speedfit System to
be easily demounted and reused, together with its
flexibility, makes Speedfit ideal for this application.
Agricultural and Horticultural. Speedfit has many
applications in agricultural and horticultural environments.
Portable Buildings (site cabins, toilets). As with caravans,
Speedfit is well suited to this application.
Speedfit fittings suitable for central heating systems can
withstand temperatures up to 114°C intermittently for
short periods.
Speedfit fittings shown as not suitable for central heating
systems are used primarily on the domestic hot and cold
water system accepting temperatures of up to 65°C.
Ensure fittings and pipe are kept clean at all times by
keeping them in bags and boxes provided.
Do not empty Speedfit Products onto the floor area.
Ensure internal ‘O’ Ring seals are kept free from dirt and debris.
John Guest fittings and related products are specifically
designed and manufactured by John Guest to the
Technical Specifications set out in the John Guest
Product Catalogues. All John Guest fittings and related
products should be selected, installed, used and
maintained in accordance with these Technical
Specifications. It is the customer’s / user’s responsibility
to ensure that John Guest fittings and related products
are suitable for their intended applications, are properly
installed and maintained and are used in accordance with
the Technical Specifications. It is also the customer’s /
user’s responsibility to provide it’s own customers with
any relevant technical information about John Guest
products it supplies them.
Speedfit should not be used for gas, fuel oil or compressed
air applications.
John Guest produce a push fit system of pipe and fittings for
compressed air situations. See seperate literature for details.
SPECIAL APPLICATIONS
WORKING TEMPERATURES AND PRESSURES
HANDLING FITTINGS AND PIPE
PRODUCT SELECTION AND INSTALLATION
03 04
Contents
PLUMBING AND HEATING
UNDERFLOOR HEATING
UNDERGROUND FITTINGS
TECHNICAL CHECKLISTS
Plumbing and 09 - 10
Heating Fittings
Flexi Hoses 11 - 12
Brass Fittings 12
Valves 13
Pipe and 14 - 15
Accessories
22 - 26
27 - 28
Designed to be quick and easy to install.
For connecting MDPE
Cold Water Service Pipe.
Plumbing and Heating 29
Underfloor Heating 30
Underground Fittings 30
Application Usual Working Maximum working Maximum working
temperature, ºC temperature, ºC pressure, bar
Cold Water 20 20 12
(indirect and direct mains)
Central Heating 82 105, short term 3
malfunction at 114
Hot Water 65 95 6
(including unvented cylinders)