John Mills KM39767, BS7291 manual Contents

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

•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

GUARANTEE

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.

SPECIAL APPLICATIONS

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.

WORKING TEMPERATURES AND PRESSURES

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)

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.

HANDLING FITTINGS AND PIPE

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.

PRODUCT SELECTION AND INSTALLATION

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.

Contents

PLUMBING AND HEATING

Plumbing and	09 - 10
Heating Fittings
Flexi Hoses	11 - 12
Brass Fittings	12
Valves	13
Pipe and	14 - 15
Accessories

UNDERFLOOR HEATING

Designed to be quick and easy to install. 22 - 26

UNDERGROUND FITTINGS
For connecting MDPE	27 - 28
Cold Water Service Pipe.

TECHNICAL CHECKLISTS
Plumbing and Heating	29
Underfloor Heating	30
Underground Fittings	30

03 04