John Mills KM39767, BS7291 manual Contents

Page 3

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

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Contents UK Product Range and Installation Guide Worldwide connections PUSH-FIT Solution for Plumbing and Heating SystemsContents NEW Twist and Lock Fittings Prepare the PipeStandard Speedfit Fittings To DisconnectCollet Covers TAP ConnectorsService Valve Pipe Stop DistancesManifolds Plumbing FittingsBraided Flexi Hoses White PVC Flexi HosesBrass Fittings Valves Pipe and Pipe AccessoriesSystem Connections Plumbing Spare PartsInstalling Pipework Pipe Sizing Pipe BendingPipe Support and Clipping Recommended Clip SpacingUnderfloor Heating Centralised System Timer Manifold Elbow ConnectorMaster Wiring Centre Wiring Centre SlaveSingle Room Underfloor Heating Pack Pipe Layout in Solid Floor InstallationsScreeds Single Room Control UnitSpare Parts Underground FittingsMaking a Good Connection Product RangeTechnical Checklist Plumbing and Heating Fittings Technical Checklist Underfloor HeatingTechnical Checklist Underground Fittings

BS7291, KM39767 specifications

John Mills BS7291, KM39767 represents a high standard of engineering and manufacturing excellence in the field of industrial components. This specific designation is associated with a range of products that are integral in various applications across multiple sectors, including manufacturing, construction, and infrastructure. The BS7291 standard is part of the British Standards for thermoplastic pipes and fittings, offering specifications that ensure safety, efficiency, and environmental sustainability.

One of the main features of John Mills BS7291 is its adaptability. The products meet the requirements for various applications, particularly in the transportation of fluids, which is crucial in plumbing and drainage systems. This versatility makes it an ideal choice for both commercial and industrial projects.

John Mills also incorporates advanced technologies in the manufacturing process. The use of high-density polyethylene (HDPE) and other durable materials ensures that the equipment is not only lightweight and easy to install but also resilient against pressure and temperature fluctuations. Additionally, the products often include innovative sealing mechanisms that enhance leak resistance, showcasing a commitment to quality and reliability.

The characteristics of John Mills BS7291, KM39767 include excellent chemical resistance, making it suitable for use with a variety of fluids, including hazardous substances. The robust construction of these components allows them to withstand harsh environmental conditions, further extending their lifespan. Furthermore, the smooth inner surface of the pipes reduces friction and allows for the efficient flow of liquids, resulting in energy savings and reduced costs for users.

Another important aspect of this range is its compliance with environmental regulations, which is becoming increasingly critical in today’s industry landscape. John Mills products are designed with sustainability in mind, helping to reduce ecological footprints and ensure responsible resource management.

In summary, John Mills BS7291, KM39767 stands out in the industry for its focus on quality, advanced materials, and adherence to stringent standards. These features contribute to their reliability and efficiency in a wide array of applications, making them a preferred choice for professionals in the field.
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