JG Speedfit Plumbing and Heating Plastic push-fit for plumbing & heating Technical Information 1 JG Speedfit Plumbing and Heating
JG Speedfit Plumbing and Heating Contents JG Speedfit plumbing and heating systems Special applications 3 Working temperatures and pressures 3 Handling fittings and pipe 3 Product selection and installation 3 Plumbing and heating - making a good connection Prepare pipe 4 Twist & Lock fittings 4 Standard Speedfit fittings 5 To disconnect 6 What not to do 7 Pipe stop distances 8 Collet cover and collet clips 8 Release aid 9 Stop end 9 Stem elbow Service valves Connections to imperia
JG Speedfit plumbing and heating systems JG Speedfit is a push-fit system suitable for the plumbing of domestic hot and cold water services and central heating applications, including pressurised and combi systems. The System is approved by the Water Regulations Advisory Scheme. Speedfit ‘PEM’ fittings and PEX and Polybutylene Barrier Pipe are Kitemarked to BS7291 Parts 1, 2 and 3 Class S Licence No KM39767.
JG Speedfit Plumbing and Heating Plumbing and heating - making a good connection Prepare the pipe Fittings and pipe should be kept clean bagged and undamaged before use. Ensure the pipe is free of score marks. Cut the pipe square. When using Speedfit Barrier Pipe cut along an insertion mark. We recommend the use of JG Pipe Cutters. To prevent damage to the O-Ring remove all burrs and sharp edges. When connecting Speedfit pipe use a Superseal Pipe Insert or a Standard Speedfit Pipe Insert.
Twist the screwcap until it touches the body flange. This increases the O-Ring seal around the pipe and locks the pipe into position. If you are not using collet clips, ensure that the screwcaps are in the locked position. Pull to check it is secure. It is good practice to test the system prior to leaving the site or before use. Our recommended test procedure is shown in our Technical Checklist.
JG Speedfit Plumbing and Heating To disconnect Ensure that the system is depressurised. The screwcap on Twist & Lock fittings will need to be turned back to the unlocked position. For both Twist & Lock and standard fittings, push the collet square against the face of the fitting. With the collet held in position the pipe can be removed. The fitting can be used again without the need for replacement parts.
DO NOT insert fingers into the fitting as the stainless steel teeth may cause injury. What not to do Don’t Don’t Use hacksaws to cut the pipe or leave burrs on the end of the pipe. Use damaged or scored pipe. Score marks can cause leaks passed the O-Ring. Don’t Don’t forget to push the pipe fully into the fitting, past both the collet (gripper) and the O-Ring.
JG Speedfit Plumbing and Heating Pipe stop distances Stops are located at the following distances from the end of the fitting: Size Stop distance 10mm 20mm 15mm 30mm 22mm 35mm 28mm 44mm Collet covers and collet clips Collet cover Use a collet cover or collet clip to provide added security against pipe disconnection, e.g. the fitting coming into contact with rigid surfaces and behind dry-lining walls.
Release aid Release aid The action of pressure in a system could increase the grip of the collet. The release aid allows a firmer grip on the collet whilst removing the pipe. Stop end The unique feature of the Speedfit concept, the ability to disconnect the fitting should you want to, means the Speedfit Stop End not only provides a permanent leakproof seal, but can be readily removed to allow work to restart or to allow an extension to a system.
JG Speedfit Plumbing and Heating Flexi hoses Manufactured to a quality you would expect from Speedfit, our range of Flexi Hoses has nearly 50 different patterns. A special pattern has been designed to help the installation of monoblocs, each hose in a pair having a different spanner location to ease connection of the threaded end into the monoblocs inlets. Tap connectors Speedfit manufactures a wide range of connectors including conventional straight and bent tap connectors.
Appliance taps The Speedfit range includes an Appliance Tap for the permanent connection of washing machines and dishwashers, thus enabling complete water isolation to the appliances. A simple push-fit connection of the supply pipe and a plastic thread on the outlet to marry well with the plastic thread on the hose means the Speedfit Appliance Tap is very easy to install. The large round handle is easy to grip and turn.
JG Speedfit Plumbing and Heating Fittings for cold water services Above and below ground This range of fittings for MDPE Pipe uses a Speedfit collet with stainless steel teeth to provide extra grip on the pipe and has WRAS Approval. Making the connection could not be easier. All you need is the pipe, the fitting and a pair of hands. The range is designed to provide a long service life and includes adaptors for screwed pipe, copper and imperial sized LDPE.
Cold water services - making a good connection Pipe insert 1 Cut pipe square using pipe cutters remove burrs and sharp edges. O-Ring 2 Always use a Speedfit Pipe Insert, which must be fully inserted. 4 Pull to check the system is secure then test the system to ensure it is water tight. 6 Push the collet square against the fitting. With the collet held in this position, the pipe can be withdrawn. Collet teeth Pipe stop 3 Push the pipe into the fitting, up to the pipe stop.
JG Speedfit Plumbing and Heating System connections Connection to compression fitting Connection to chrome-plated copper pipe Many but not all compression fittings are suitable for use with plastic fittings and pipe. Users should therefore check for compatibility. Compression fittings with short tube stop depth or brass olives should not be used with plastic fittings or pipe.
Connection to boilers Unvented pressurised cylinders Speedfit pipe should never be connected directly to a boiler. Unvented pressurised cylinders can be installed using Speedfit pipe and fittings. However if the safety parameters of the cylinder exceed those of the pipe and fittings it is possible to fit a pressure reduction valve on the out going hot supply pipe.
JG Speedfit Plumbing and Heating Drop-pipe systems Care should be taken when designing and installing a central heating system where radiators are supplied by pipe work which drops from an upper floor. With this kind of system it is possible to trap air in the upper floor pipe work. When the boiler is fired the increase in pressure within the pipe caused by expanding air could cause the pipe to burst.
Electrical continuity The plumbing or heating system installer should have these aspects checked to ensure compliance with current IEE Regulations. If in doubt please contact the Speedfit Technical Advisory Service or consult your local Electricity Authority. IEE Guidance Note 7 provides useful guidance on the design of electrical installations where there is increased risk of electric shock.
JG Speedfit Plumbing and Heating Installing pipework Speedfit Barrier Pipe Pipe bending Speedfit Barrier Pipe is manufactured to BS 7291 Parts 1, 2 and 3 Class S and is Kitemarked. Gentle bends can be made with pipe clips on either side of the curve, positioned to maintain the bend radius. It is made up of 5 layers, the centre of which is a blue coloured oxygen barrier which prevents the ingress of air into the system, thereby reducing the effect of corrosion on metal components.
Pipe support and clipping There are two types of pipe clip in the Speedfit range. Firstly, a nail clip is used for fixing to timber when running concealed pipe work i.e. underfloor or in a roof space. This clip takes less time to fit and is compact which allows pipework to be fixed close together when space is at a premium. The second type uses a screw and therefore takes a little longer to fix. When pipes are required to cross over, it is possible to add a spacer to the clip.
JG Speedfit Plumbing and Heating Traditional joists Timber framed construction Min 3 x hole dia. D 0.25 S 0.4 S Max. dia. of holes = 0.25D Instructions on the drilling of joists is given in the Building Regulations Approved Document A, and summarised as follows: 1. Holes should be no greater than 0.25 of the depth of the joist 2. Holes should be drilled at the neutral axis 3. Holes should not be less than 3 diameters (centre to centre) apart Speedfit is well suited for timber frame construction.
Exposed pipework Biological On long exposed runs of pipework, the expansion of Speedfit pipe when warm (1% on length between 20 to 82°C) can cause it to sag between clip fixings. When this is undesirable, pipework can be boxed in. No taste, colour, odour or toxicity is imparted to water by Speedfit components, nor do they promote microbiological growth. In accordance with BS7291 Part 1 requirements, the opacity of both pipes and fittings allows insufficient light to pass for the growth of algae.
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.
Technical checklists Plumbing and heating fittings Where pipe is concealed, clipping may only be required where necessary. Fittings and pipe should be kept clean and undamaged before use. Flow Rates: Comparable with metal systems. Sizes: 10mm to 28mm diameter.
JG Speedfit Plumbing and Heating Collet Covers: Collet covers provide added security against pipe disconnection, e.g. the fittings coming into contact with rigid surfaces and behind dry-lining walls. They are offered in white as standard and in red or blue to provide colour coding of pipe. Collet Clips: White and Grey collet clips are used with standard fittings to prevent accidental pipe disconnection. Red or blue clips provide colour coding of pipe.
JG Speedfit Plumbing and Heating Technical support At Reliance Worldwide Corporation (UK) Ltd we are extremely proud of our heritage and reputation for providing excellent products and customer service levels. Our highly trained Customer Service Team and Technical Support Team is available and keen to help with product advice, technical enquiries and installation issues; and our Sales Managers are available throughout the UK to discuss product and installation specifications.
