Plastic Push-fit For Plumbing & Heating - Toolstation

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JG SpeedfitPlumbing and HeatingPlastic push-fit forplumbing & heatingTechnical Information1JG SpeedfitPlumbing and Heating

JG SpeedfitPlumbing and HeatingContentsJG Speedfitplumbing andheating systemsSpecial applications3Working temperaturesand pressures3Handling fittings and pipe3Product selection and installation 3Plumbing andheating- making a good connectionPrepare pipe4Twist & Lock fittings4Standard Speedfit fittings5To disconnect6What not to do7Pipe stop distances8Collet cover and collet clips8Release aid9Stop end9Stem elbowService valvesConnections toimperial pipe and fittings14Connections tochrome-plated copper pipe14Connections to mains supply14Connections to boilers15Continously operatedre-circulating systems15Unvented pressurised cylinders15Connections tocylinders and water heatersDrop-pipe systemsSteel framed construction20Dry lined walls20Wet plaster20Laying of pipe in concreteand masonry21Exposed pipework21Chemical effects21Fluxes and Speedfit2115Acoustic2116Protection against rodents21Biological212116System testingConnection to copper pipe16System commissioningand flushing2122Connections tocold water storage tank16Preventing back flow16Disinfection of hot and coldwater systemsRadiator connections16Technical advisory service22Electrical continuity17Metal foil tape22Supplementary bondingto bathrooms17Common problemsand identification22Plumbing and heating fittings239Connecting to otherplumbing fixtures179Discharge pipes171710Water heatersTap connectors10Speedfit manifold10InstallingpipeworkApplication taps11Superseal pipe insert11Fittings for cold water services12Cold waterservicesSpeedfit Barrier Pipe18Pipework sizing18Pipe bending18Pipe support and clipping19Recommended clip spacing19Pipe sizing19SystemconnectionsPipework insulation19Concealed pipework19Traditional joists20Timber 'I Beam' joists20Cross web joists2014TechnicalchecklistsFittings for cold water services- making a good connection 13220Connections to pumpsand valvesFlexi hosesConnections tocompression fittingsTimber framed construction24

JG Speedfit plumbingand heating systemsJG Speedfit is a push-fit system suitable for theplumbing of domestic hot and cold water services andcentral heating applications, including pressurised andcombi systems.The System is approved by the Water RegulationsAdvisory Scheme. Speedfit ‘PEM’ fittings and PEX andPolybutylene Barrier Pipe are Kitemarked to BS7291 Parts1, 2 and 3 Class S Licence No KM39767.Performance specifications are well within thoserequired for most central heating and water supplysystems including: Mains fed and indirect cold water systems Vented and unvented hot water systems Vented central heating systems Sealed central heating systems providedtemperatures and pressures comply withBS7291 Parts 1, 2 and 3 Class S Underfloor heatingExtensive tests have shown that Speedfit products willwithstand temperatures and pressures well in excess ofnormal working conditions.Speedfit should be installed to conform with goodplumbing practice.Speedfit should not be used for gas, fuel oil orcompressed air applications.Special applicationsBoats. The flexibility of the Speedfit system ensures itcan be cabled easily around the interior and hiddenfrom view.Caravans. Speedfit is ideal for caravan installationsdue to its flexibility and its resistance to corrosionand freezing.Working temperatures andpressuresApplicationCold WaterUsual working Maximum workingtemperature Ctemperature CMaximumworkingpressure, bar(indirect and directmains)202012Central Heating82105, short termmalfunction at 114365956Hot Water(includingunvented cylinders)Speedfit fittings suitable for central heating systems canwithstand temperatures up to 114 C intermittently forshort periods.Speedfit fittings shown as not suitable for central heatingsystems are used primarily on the domestic hot and coldwater system accepting temperatures of up to 65 C.Handling fittings and pipeEnsure fittings and pipe are kept clean at all times bykeeping them in bags and boxes provided. Do not emptySpeedfit products onto the floor area. Ensure internalO-Ring seals are kept free from dirt and debris.Product selectionand installationJohn Guest fittings and related products are specificallydesigned and manufactured by John Guest to theTechnical Specifications set out in this guide.All John Guest fittings and related products should beselected, used and maintained in accordance with theseTechnical Specifications.Agricultural and Horticultural. Speedfit hasmany applications in agricultural andhorticultural environments.It is the customer’s / user’s responsibility to ensure thatJohn Guest fittings and related products are suitable fortheir intended applications, are properly installed andmaintained and are used in accordance with theTechnical Specifications. It is also the customer’s / user’sresponsibility to provide it’s own customers with anyrelevant technical information about John Guest productsit supplies them.Portable Buildings (site cabins, toilets). As withcaravans, Speedfit is well suited to this application.John Guest produce a push-fit system of pipe and fittings forcompressed air situations. See separate literature for details.Exhibitions. The unique ability of the Speedfit system tobe easily demounted and reused, together with itsflexibility, makes Speedfit ideal for this application.3

JG SpeedfitPlumbing and HeatingPlumbing and heating- making a good connectionPrepare the pipeFittings and pipe should be kept clean bagged andundamaged before use.Ensure the pipe is free of score marks. Cut the pipe square.When using Speedfit Barrier Pipe cut along an insertionmark. We recommend the use of JG Pipe Cutters.To prevent damage to the O-Ring remove all burrs andsharp edges. When connecting Speedfit pipe use aSuperseal Pipe Insert or a Standard Speedfit Pipe Insert.Fully insert using a twisting motion. The insert shouldonly be used with Speedfit Pipe.Pipe CutterJG TSSpeedfitBarrier PipeTwist & Lock fittingsPush pipeup to stopMain O-RingThe fitting should be in the ‘unlocked’ position, this isshown with a small gap between the screwcap andthe body flange.Push the pipe fully into the fitting, up to the pipe stop.If the Speedfit pipe has been cut correctly the insertionmark on the pipe will be level with the collet head.The O-Ring on the Superseal Pipe Insert providesa secondary seal against the bore of the fitting.A good connection has been made.Gap betweencap and flange4SecondarysealPipe markindicatesfull insertion

Twist the screwcap until it touches the body flange.This increases the O-Ring seal around the pipe andlocks the pipe into position.If you are not using collet clips, ensure that the screwcapsare in the locked position. Pull to check it is secure.It is good practice to test the system prior to leavingthe site or before use. Our recommended test procedureis shown in our Technical Checklist.Standard Speedfit fittingsPush pipe up tostopMain O-RingStandard Speedfit connections are made in the sameway as Twist & Lock.Push pipe up to Pipe Stop. If the Speedfit pipe hasbeen cut correctly the insertion mark on the pipewill be level with the collet head.SecondarysealPipe markindicatesfull insertionPull to check connection is secure and test the system.Our recommended test procedure is shown in ourTechnical Checklist on page 23.5

JG SpeedfitPlumbing and HeatingTo disconnectEnsure that the system is depressurised.The screwcap on Twist & Lock fittings will need to beturned back to the unlocked position.For both Twist & Lock and standard fittings, push thecollet square against the face of the fitting. With the colletheld in position the pipe can be removed. The fitting canbe used again without the need for replacement parts.6

DO NOTinsert fingers intothe fitting as thestainless steelteeth may causeinjury.What not to doDon’tDon’tUse hacksaws to cut the pipe or leave burrs on the end ofthe pipe.Use damaged or scored pipe. Score marks can causeleaks passed the O-Ring.Don’tDon’t forget to push the pipe fully into the fitting, pastboth the collet (gripper) and the O-Ring.Fitting may be gripped but notsealed if pipe is not fully insertedPipe mark not level with collet head –indicating pipe not pushed fully homeRemember to pressure test the completed installation accordingto the recommendations in our Technical Checklist.7

JG SpeedfitPlumbing and HeatingPipe stop distancesStops are located at the following distances from the endof the fitting:SizeStop distance10mm20mm15mm30mm22mm35mm28mm44mmCollet covers and collet clipsCollet coverUse a collet cover or collet clip to provide added securityagainst pipe disconnection, e.g. the fitting coming intocontact with rigid surfaces and behind dry-lining walls.Collet covers for use with standard Speedfit fittings,are available in white, red or blue to allow colour codingof pipes.White or grey collet clips are used with standard fittingsto prevent accidental pipe disconnection.Collet clipRed or blue collet clips provide colour coding of pipe onTwist & Lock fittings. They are not designed to preventaccidental release and should be fitted when the fitting isin the locked position.8

Release aidRelease aidThe action of pressure in a system could increase the gripof the collet. The release aid allows a firmer grip on thecollet whilst removing the pipe.Stop endThe unique feature of the Speedfit concept, the abilityto disconnect the fitting should you want to, meansthe Speedfit Stop End not only provides a permanentleakproof seal, but can be readily removed to allowwork to restart or to allow an extension to a system.Thus, the fitting is especially useful to allow water tobe turned back on, overnight for instance, or if a jobhas to be interrupted for another reason.Stop ends are also useful when pressure testing asystem before appliances are connected.Stem elbowDesigned to simplify pipe connection in restricted spaces.The Speedfit Stem Elbow provides an instant swivelfitting so pipe can be orientated in any direction.A special 10mm version gives a neat connection fromconcealed plumbing to a radiator.Service valvesThe Speedfit range of brass chromium plated servicevalves can be used on both hot and cold water servicesand central heating. Push-fit connections mean muchreduced installation time, especially in confined spaces.The valves, in 10 to 22mm, have a 1/4 turn open/closemechanism operated by a screwdriver slot or a lever.Speedfit x SpeedfitMechanism twists out of sightThe ability of Speedfit products to twist whilst in-situallows the screwdriver slot operating valve to be turnedout of sight, helping to avoid unauthorised tampering.9

JG SpeedfitPlumbing and HeatingFlexi hosesManufactured to a quality you would expect fromSpeedfit, our range of Flexi Hoses has nearly 50different patterns.A special pattern has been designed to help theinstallation of monoblocs, each hose in a pair havinga different spanner location to ease connection ofthe threaded end into the monoblocs inlets.Tap connectorsSpeedfit manufactures a wide range of connectorsincluding conventional straight and bent tap connectors.The range also offers a special and unique Tap Connectorwith an integral seal that only requires a simple handtightening to connect up a terminal tap, mixer or a floatvalve. The connectors are useful when replacing existingbrassware or in other confined spaces.Speedfit manifoldSpeedfit have introduced an innovative 22mm x 10mm4 Way Manifold. Departing from the usual manifolddesign, this new product has 4 in-line 10mm outlets,offering a neater envelope size and therefore a muchsmaller installation space.Other benefits include better flow characteristicsand a more even distribution of hot water.The 22mm and 10mm Speedfit push-fit connectionsmake for a fast and easy installation, even inconfined spaces.Whilst designed as heating product, the manifold canalso be used in a mains pressure hot or cold domesticplumbing system, to feed bathroom or kitchen taps andmixers. This allows for a more efficient installation asevery terminal fitting has its own dedicated supply.10

Appliance tapsThe Speedfit range includes an Appliance Tap forthe permanent connection of washing machinesand dishwashers, thus enabling complete waterisolation to the appliances.A simple push-fit connection of the supply pipe and aplastic thread on the outlet to marry well with the plasticthread on the hose means the Speedfit Appliance Tapis very easy to install. The large round handle is easy togrip and turn.Superseal pipe insertThe Superseal Pipe Insert has been developed to beused with Speedfit Barrier Pipe and Speedfit fittingsto provide an extra line of defence when installing aSpeedfit push-fit system.The insert has its own O-Ring which together with astem sliding within the inside diameter of the pipegives a secondary seal against the inside of the fitting.The Speedfit connection, when made with the insert,has a number of design features.Sliding the stem of the insert into the pipe gives greaterrigidity to the length of pipe within the fitting, reducingthe chances of leaks if a side load is applied.A connection is easier to make because the head ofthe insert has been designed for ease of insertion.11

JG SpeedfitPlumbing and HeatingFittings for cold water servicesAbove and below groundThis range of fittings for MDPE Pipe uses a Speedfit colletwith stainless steel teeth to provide extra grip on the pipeand has WRAS Approval.Making the connection could not be easier. All youneed is the pipe, the fitting and a pair of hands. Therange is designed to provide a long service life andincludes adaptors for screwed pipe, copper andimperial sized LDPE.ApplicationSpeedfit underground fittings for MRS PE80 metric sizepolyethylene cold water service pipe have been designedfor connection of:1.12Blue pipe to BS EN 12201-2, 20mm PN16, 25mm and32mm PN12.5.The Technical Checklist for Cold Water Services Fittingsis on page 24.

Cold water services- making a good connectionPipe insert1Cut pipe square using pipe cuttersremove burrs and sharp edges.O-Ring2Always use a Speedfit Pipe Insert,which must be fully inserted.4Pull to check the system is secure then testthe system to ensure it is water tight.6Push the collet square against the fitting.With the collet held in this position, the pipecan be withdrawn.Collet teethPipe stop3Push the pipe into the fitting, up to the pipe stop.The stainless steel teeth grip the pipe, the O-Ringprovides a permanent leakproof seal.To disconnect5Ensure the system is depressurised. Removethe collet cover by sliding it along the pipe.Squeezing the raised portions will aid removal.13

JG SpeedfitPlumbing and HeatingSystem connectionsConnection tocompression fittingConnection tochrome-plated copper pipeMany but not all compression fittings are suitable foruse with plastic fittings and pipe. Users should thereforecheck for compatibility. Compression fittings with shorttube stop depth or brass olives should not be usedwith plastic fittings or pipe.When using compression fittings with Speedfit pipe,a Standard Pipe Insert (prefix TSM) must be used towithstand the compressive pressure of the olive.The olive must be located within the length of thepipe insert and the pipe fully inserted into the fitting.The connection should not need more than 2 fullturns after the olive has gripped the pipe. JG Speedfitrecommends the use of soft copper olives.Ensure nut and olive are in place beforeinserting pipe insert.It is not possible to connect Speedfit fittings tostainless steel pipe.CompressionfittingConnection to mains supplyOliveTSM pipe insertSpeedfit pipeConnection to imperialpipe and fittingsThe Speedfit Range includes couplers to connectSpeedfit Pipe to 1/2" to 1" BSP and BSPT.14Speedfit fittings can be connected onto chromium platedcopper pipe if the chromium plating is completelyremoved to the full depth of the fitting. To ensuremaximum grip we recommend fitting a collet clip.In modern properties, water enters a building usually inblue MDPE (medium density polyethylene) pipe. In orderto comply with Water Regulation Schedule 2.10, theinternal plumbing system should be connected via aSpeedfit Stop Tap from our Cold Water Services Range,Part No.’s UGSTV2515, 25mm x 15mm or UGSTV2522,25mm x 22mm.Connection of Speedfit pipe to supply pipe of othermaterials should be via a stop tap with a 15mm or 22mmcompression outlet.

Connection to boilersUnvented pressurised cylindersSpeedfit pipe should never be connecteddirectly to a boiler.Unvented pressurised cylinders can be installedusing Speedfit pipe and fittings. However if the safetyparameters of the cylinder exceed those of the pipe andfittings it is possible to fit a pressure reduction valve onthe out going hot supply pipe. This will not interferewith any other cylinder safety devices demanded byregulations as they are all fitted in the incoming sideof the cylinder.Although most modern boilers have a high limitthermostat, residual heat can be conducted by theheat exchanger. Therefore, Speedfit recommend aminimum of 1 metre from the boiler casing should berun in copper pipe unless otherwise stated in theboiler manufacturer’s installation literature.A gravity primary circuit operating on an uncontrolledcooking range or solid fuel boiler should be run entirelyin copper and the heating circuit run in copper for thefirst metre. Refer to BS 5955: Part 8 for further clarification.All appliances should have safety devices to make surethey cannot operate above the working temperature andpressure range set out in our Technical Checklist on page23. If safety devices are not incorporated within theappliance then external controls will be needed.Water meters (and other devices) can contain checkvalves that prevent the expansion of heated water backdown the main supply from a combi boiler. If plastic pipeis to be used, a suitable expansion vessel must be fitted.This is especially important to consider if a water meter isfitted retrospectively. Speedfit do not recommend the useof plastic pipe on the main supply between a water meterand a combi boiler if an expansion vessel is not fitted.Speedfit products should not be fitted to a sealedsystem oil boiler, a back fired boiler or other uncontrolledheat source.Please also see Drop-pipe systems on page 16 andSystem commissioning and flushing on page 21.Continuously operatedre-circulating systems(secondary hot water circulation/ring main installations)Run a short length of copper pipe from the cylinderconnection (about 150mm – 300mm) then fit a suitablepressure reduction valve. This will protect the pipe andfittings from excessive pressure in the event of boiler/cylinder malfunction. The factory fitted temperature/pressure relief valve on the cylinder will dischargebelow 100 C therefore protecting the pipe fromexcessive temperature.Connection to cylindersand water heatersSpeedfit can be used on sealed and open vented heatingsystems, where boilers are either heating a hot waterstorage cylinder or instantaneous hot water such asa combination boiler. The temperature and pressurelimits of the system must not exceed the maximumvalues stated under the heading ‘Working Temperaturesand Pressures’.When using a traditional copper vented cylinderSpeedfit pipe and fittings can be installed with directconnections to the cylinder. Unvented pressurisedcylinders can be installed using Speedfit pipe and fittings.However, insertion depths on compression joints thatform part of the cylinder must be checked prior toinstallation and the use of standard pipe inserts (PrefixTSM) is recommended.Speedfit connections to combined cylinder/boiler unitsand thermal storage units must be made outside thecasing unless otherwise stated in manufacturersinstallation literature.A continuously operated re-circulating system is awater-replenished circulating system which is maintainedat a constant high temperature to provide a constantsource of hot water. Continuously operated re-circulatingsystems are used to distribute constant hot water todraw off points that may be distant from the sourceor hot water storage vessel.Continuously operated re-circulating systems arevery different from conventional hot water supply andcentral heating systems found in domestic properties,for which our products have been tested to, under eitherBS7291:2010 Class S or WRAS approval standards,and for this reason Speedfit products must not be usedon any continuously operated re-circulating systems asthey are not approved under the current version ofthese standards.15

JG SpeedfitPlumbing and HeatingDrop-pipe systemsCare should be taken when designing and installinga central heating system where radiators are suppliedby pipe work which drops from an upper floor.With this kind of system it is possible to trap air in theupper floor pipe work. When the boiler is fired the increasein pressure within the pipe caused by expanding aircould cause the pipe to burst.To install the Speedfit Tank Connector, unscrew the nutand push the body of the fitting through the tank holewith the washer on the inside of the tank. Hand tightenthe nut onto the body. Push the pipe into the connector.Note: Hand tightening the nut onto the body is allthat is required. Further mechanical tightening willdamage the fitting.Preventing back flowIt is therefore essential that the system be designed sothat any air can be removed from the system eitherautomatically or manually by installing automatic ormanual air vents at the highest points of the system.Connection to pumpsand valvesSpeedfit pipe should be connected to circulating pumpsand motorised valves in accordance with page 15,‘Connecting to compression fittings’. If Speedfit pipe isnot mounted on a supporting structure, the pipe mustbe clipped close to the component’s connections toensure adequate support and to assist in the reductionof vibration.For heavier equipment, ensure that appropriate metalbrackets provide full and independent support of thecomponents and that it does not rely solely on thepipework for support.The Speedfit range includes a Double Check Valve(Part No 15DCV) to enable installers to comply withWater Regulation Schedule 2.15, thus preventingcontamination of water arising from back siphonage,backflow or cross connection. Suitable for use withfluid categories 1, 2 and 3 only.Radiator connectionsConnection to copper pipeThe most common way of running pipework to aradiator is to run both flow and return pipes centralto the radiator position.The minimum distance to make a solder connection oncopper pipe inserted into a Speedfit fitting is 450mm(18 inches). Ensure that any residual flux solder is notallowed to come in contact with the fitting. That samemeasurement is the safe distance to use a freezer kitto Speedfit pipe.The pipes exit a single gang box (fitted with rubbergrommets) located at the mid height of the finishedradiator position. This also provides a fixed point forother trades to work to and reduces the risk of damageto the pipework.Once the plasterboard is installed the pipes are passedthrough the Speedfit Radiator Outlet Plate to exitplasterboard without the need of unsightly holes.Connecting to coldwater storage tankCold water tankHolediameterWasherPipeHole diameter15mm pipe29mm22mm pipe36mm28mm pipe46mm16Metal reducing sets which convert radiator valves from15mm to 10mm are not suitable for use with Speedfitfittings or pipe as they can cause damage to the plastic.

Electrical continuityThe plumbing or heating system installer should havethese aspects checked to ensure compliance withcurrent IEE Regulations. If in doubt please contact theSpeedfit Technical Advisory Service or consult yourlocal Electricity Authority.IEE Guidance Note 7 provides useful guidance on thedesign of electrical installations where there is increasedrisk of electric shock. It recognises that the requirementfor supplementary bonding may be relaxed where metaltaps and plastic pipes supply other bathroom fittings.Similarly a metal bath or radiator not connected toan extraneous-conductive-part is not required to beconnected to the local supplementary conductors.ClipEarth leadClip1. Supplementary bonding is carried out to the earthterminal protective conductors of class I and class IIequipment within the bathroom. A supplementarybond is not run back to the main earth.2. Metal window frames are not required to besupplementary bonded unless they are electricallyconnected to the metallic structure of the bonding.3. Metal baths supplied by metal pipes do not requiresupplementary bonding if all the pipes are bonded andthere is no other connection of the bath to earth.4. All bonding connections must be accessibleand labelled ‘Safety Electrical Connection –Do Not Remove’Connecting to otherplumbing fixturesAs shown in the Trade Price List, the Speedfit range offittings includes valves, taps, adaptors and connectorsfor the plumbing of all typical domestic appliancesand fittings.Discharge pipesMetal pipeMetal pipeSpeedfit pipe and fittingSupplementary bondingto bathroomsPPPMMPMPMMSupplementary bondrequired betweenCommentsCentralheatingHot waterCold waterPipe materialPEarth terminals of protectiveconductors of class I andof class II equipment andaccessible exposed conductiveparts of the building structure.Bonding of metal taps metalradiators or metal baths isnot required unless the bathis connected to the metallicbuilding structure.MHot water pipe, central heatingpipes, earth terminals ofprotective conductors of classI and class II equipment andaccessible exposed conductiveparts of the building structure.A bond is not required tothe taps either hot nor cold,or to metal baths unlessconnected to the metallicbuilding structure.MCentral heating pipes, theearth terminals of protectiveconductors of class I and classII equipment and access toexposed conductive parts of thebuilding structure.Bonding of metal water tapsis not required, nor metalbaths unless connectedto the metallic buildingstructure.MAll metal pipes, earth terminalsof protective conductors classI and class II equipment, andaccessible exposed conductiveparts of the building structure.Metal pipes themselves canbe used as bondingconductors if joints are metalto metal and electricallycontinuous.PAll metal pipes, earth terminalsof protective conductors of classI and class II equipment, andaccessible exposed conductiveparts of the building structure.Metal central heatingradiator does not requirebonding.P Plastic M MetalNB: All Waste Pipes are plastic.Speedfit pipe should not be used to provide the dischargefrom unvented cylinders, unvented water heaters andsealed systems via the temperature relief and pressurerelief valves.Water heatersSpeedfit recommend that mains supply pipework tounvented water heaters (up to 15ltr capacity), be run inmetal pipes.Adequate provision must also be made regarding thermalexpansion of water from a water heater. The use of anexpansion relief valve and/or an expansion vessel mustbe used where water expansion is not possible back intothe mains supply.Ensure water temperatures do not exceed thoserecommended for Speedfit.17

JG SpeedfitPlumbing and HeatingInstalling pipeworkSpeedfit Barrier PipePipe bendingSpeedfit Barrier Pipe is manufactured to BS 7291Parts 1, 2 and 3 Class S and is Kitemarked.Gentle bends can be made with pipe clips on either sideof the curve, positioned to maintain the bend radius.It is made up of 5 layers,the centre of which is ablue coloured oxygenbarrier which prevents theingress of air into thesystem, thereby reducingthe effect of corrosion onmetal components.Because of its low thermalconductivity when carryinghot water, Speedfit pipeis cooler and thereforesafer to touch. Relativelylow heat loss through radiation means that a systemretains its heat longer and delivers hot water more quicklyand with less wastage than a metal system.15mm x 1.5mm BARRIER PE-X to BS7291-3 : 2010 Class S15mm x 1.5mm BARRIER PB to BS7291-2 : 2010 Class S12½ BAR 20 C - 4 BAR 82 C - 3 BAR 92 C12½ BAR 20 C - 4 BAR 82 C - 3 BAR 92 CTighter bends can beachieved by using the coldforming bends shown on.Internal Bending Springsare available in 10mm to22mm sizes.It is also possible to bend Speedfit pipe using a standardpipe bender. The pipe should not be heated with ablowlamp or hot air gun.Minimum bend radii for Speedfit pipe (BPEX and BPB)are as follows:Speedfit min radiusPipe diameterThe pipe is available in coils and straight lengths. Pipemarkings are spaced to aid the making of a goodconnection when using a Superseal Pipe Insert.Pipework sizingFor general guidance on pipework sizing, please refer toBS EN 806 and complementary guidance documentBS 8558, or the Institute of Plumbing EngineeringServices Design Guide. Speedfit Fittings are suitable forpipes within 0.1mm of nominal size. They can be usedwith copper pipe to BS EN 1057 or Speedfit plastic pipe.The Product Range List shows the fittings available forreducing pipe diameters within the system.Speedfit pipe is available in straight lengths and coils.10mm15mm22mm28mmWith coldforming bends30mm75mm110mm–With clips100mm175mm225mm 300mmBPB min radiusPipe diameter10mm15mm22mm28mmWith coldforming bends30mm75mm110mm–With clips80mm120mm176mm–For bends of radii smaller than those shown, standardelbow fittings are recommended.18

Pipe support and clippingThere are two types of pipe clip in the Speedfit range.Firstly, a nail clip is used forfixing to timber whenrunning concealed pipework i.e. underfloor or in aroof space. This clip takesless time to fit and iscompact which allowspipework to be fixed closetogether when spaceis at a premium.The second type uses ascrew and therefore takesa little longer to fix. Whenpipes are required to crossover, it is possible to add aspacer to the clip. This willgive room between thepipe and the wall to allowthe pipes to cross over.If pipework needs to beinsulated, using the spacerwill give room for thelagging to be applied.Pip

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