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7/29/2019 Plumbing & Drainage Solution.pdf
1/13MARLEY AkAtherm hDPe |
Soil &WasteDesign & installation
marley.co.uk
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3MARLEYAkAtherm hDPe MARLEY Soil & Waste Systems |
Marley Soil & Waste systems
Marley Plumbing & Drainage of fer a comprehensive
range of soil and waste sys tems. Available with a
variety of jointing methods, Marley products are
manufactured to exacting UK and European standards
and are designed for use on commercial projects as
well as housing developments.
Innovation & Expertise
Product specication information
This guide contains design and installation
information for the Marley PVCu soil &
waste range. Design and installation guides
are also available for Marley Akatherm HDPE
drainage and dBlue acoustic soil. Product
specication information on all three
product ranges is available as a separate
document. All documentation can be
downloaded from marley.co.uk
Production information
Information on the complete range of
Marley Plumbing and Drainage system
solutions is available to download from
marley.co.uk or available via the literature
hotline 01622 852585.
BS EN ISO 9001:2008BS EN ISO 14001:2004
Contents
4 PVCu soil & waste systems
5 Commercial applications
6 Key components
Design8 Stack design
11 Design of waste systems
12 Waste traps
12 WC manifold system
14 Durgo air admittance valve
15 Fire protection
Installation16 J ointing techniques
17 Pipe support system
18 Boss branches
18 B oss pipe connections
19 WC connections
20 WC manifold system
21 Site work
22 British & European Standards
23 Marley system solutions
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5MARLEY Soil & Waste Systems |MARLEY Soil & Waste Systems
Marley Akatherm HDPE
The Marley Akatherm HDPE drainage range iscertified to BS EN 1519: 2000 (licence numberKM 545820) An extension of the Marley soil& waste portfolio, the HDPE range offers analternative solution to cast iron.
It is particularly suited for commercialapplications or where a product with highimpact or abrasion resistance is required,such as hospitals, hotels, schools, as well asresidential buildings. HDPE will also cope withtemperature variations of -40C to 100C.
The combination of the excellent materialproperties of HDPE with homogenous weldedjoints provides greater installation flexibility
with a wide range of jointing options
Marley dBlue acoustic system
The Marley dBlue acoustic system is atriple-layer drainage system designed foruse where improved levels of soundproofingare required. Suitable for use in domesticapplications as well as hospitals and hotels,where reduced noise levels are required.Used in conjunction with the acoustic pipeclips, the dBlue system is designed to reducenoise and acoustic vibrations to a level of 19dB
at 4 l/s discharge rate. It is also lightweight,resistant to temperature change and is jointedusing the push-fit ring seal method.
The dBlue system is available in 40mm, 50mm,110mm and 160mm diameters. It is alsocompatible with the Marley PVCu soil and wastesystem for branch connections.
*40 mm and 160 mm pipe clips also available.
Commercial applications
2 pipe clip diameters*:
50 mm110 mm
Pipe clip fastening
Acoustic inlays
Suppression of vibrations between the system sectionThree contact surfaces with the pipeSpecial structure on the noise suppression surfaces
Secure fixing to the
buildings structure.
Elimination of the acoustic bridgebetween the soil stack and thebuildings structure
Key tting: Akavent aerator
The need for secondary venting in high-risebuildings can be eliminated with the Akaventaerator. An Akavent aerator fitting breaks thefall on each floor and as a consequence thesecondary vent pipe is not required as thepressure difference stays well within the limitof 3 mbar.
Solvent soil
The Marley PVCu soil range has beenextended with the addition of nine new110mm solvent fittings, offering furtheroptions for the installer. The range includesthe new 8-way soil manifold which offers
The unique shape of the fitting increasesthe capacity of the stack. The soil andwaste flow from the higher floors smoothlyconverges with the flow of the lower floor.
the flexibility of 4 top and 4 side entries,allowing for multiple inlet connections.At just 70mm above the floor slab, themanifold sits neatly at finished floor levelin most typical applications.
Akavent Aerator
Roof terminalSV42
Boss connector
SA421
45 teeKT21
Collar boss
SCB41
PipeKP204
88 bendKB2
Bottle trap
WBA4W
Low level bath trapWBP42W
P trapWPT4W
Waste pipe
Boss connectorSA421
Weathering slate
SAS45
Pipe clipSC45
PipeSL403
Branch
SY401
Bent pan connectorSWCB90
Boss pipe
SW40
PipeSP403
Slip couplingSE405
110mmUnderground pipe
PVCu soil & waste systems
82mm, 110 & 160mm push-t and solvent
weld soil systems incorporating socketed
and plain ended pipe
110mm WC connectors for all BS WC pans.
Available with solvent weld or push-t joints.
110mm WC manifold system allows ranges
of toilets to be connected horizontally. Ideal
for commercial applications.
50mm & 82mm oor outlet components
are available as separate components or
as an all in one trapped oor outlet.
Fire sleeves and pipe wraps, providing
up to 4 hours rating.
110mm & 160mm pipe support
components designed specically to
meet the needs of supporting horizontal
or vertical suspended PVCu pipework.
82, 110 and 160mm pipes and tti ngs are
also suitable for use as internal and external
rainwater pipes to drain at roofs and
metal gutter systems on commercial and
industrial buildings.
Solvent waste Push-t waste Compression waste Overfow Traps
PVCc ABS Polypropylene Polypropylene PVCu Polypropylene
Suitable for internaland externalapplications.
Lightweight and costeffective for internalinstallation. Easy tocut joint and install.
For internal use,ideally suited to fastinstallation. Costeffective solution wheresystems are beinginstalled or modified.
Multi-fit compressionsocket, for internaluse. Easy installationto similar sized newor existing plastic andcopper pipework.
A complete rangeof pipework andfittings for overflowapplications.
A range of traps, whichenable quick & easyinstallation to any newor existing plastic orcopper pipework.
Available in32, 40 & 50 mm
Available in32, 40 & 50 mm
Available in32, 40 mm
Available in32, 40 mm
Available in21.5 mm
Available in32, 40 & 50 mm
White, Black & Brown White, Black & Grey White, Black & Grey White & Chrome White White & Chrome
ABS and polypropylene waste pipes and fittings are designed for internal use and should not be fitted externally as they will be subject to ultraviolet lightdegradation. If fitted externally it is recommended that they are protected by the application of a suitable paint or are boxed in.
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7MARLEY Soil & Waste Systems |MARLEY Soil & Waste Systems All documentation is available to download from marley.co.ukTechnical hotline: 01622 852695
Key components
Push-t soil range
The Marley range offers a quick,straightforward solution. In up to threecolour variants, pipe with a socket orspigot end and a wide range of ttings.Ideally suited for domestic and smallcommercial applications.
Manifold systemFor use in sanitary pipework systems in s chools,
hospitals, public and commercial buildings,the manifold system allows ranges of toiletsto be connected to a horizontal float abovefloor level and eliminates the need for speciallyfabricated fittings.
Fire protection systems
Universal re collar (UFC1)
& re sleevesFire sleeves and pipe wraps, providing up to 4
hours rating. The universal fire collar is designedto be surface mounted and is sufficient for 5 x110mm pipe collars.
WC connectorsConnectors for all BS WC pans to
accommodate a range of outlet sizesbetween 84 and 110mm. Available with
solvent weld or push-fit joints.
Durgo air admittance valveThe Durgo valve is designed to reduce the
number of roof penetrations. Suitable foruse in sanitary pipework systems up to ten
storeys high, the valve must be fitted in a
vertical position above the flood level of the
highest appliance connecting to the stack.
Anti-syphon bottle trap
(WBA3W & WBA4W)
Developed to prevent self-syphonage frombasins, which can occur particularly where
the waste pipe drops vertically from the
appliance. Non-mechanical, the trap operates
as air is drawn in through a central by-pass
tube to ensure the trap seal is maintained.
The Marley soil & waste range offers an extensive choice of standard ttings for
commercial and domestic projects.
Pictured is a selection of key components within the range. Product specication information on the PVCu, HDPE drainage and dBlue acoustic soilranges is available as a separate document. All documentation can be downloaded from marley.co.uk
Solvent Soil range
The Marley range offers a secure methodof jointing and includes the new eight-waycollar boss for multiple connections to thestack, solvent socket bends, branches andaccess ttings. Ideally suited for commercialand horizontal pipework situations.
8-way collar bossThe collar boss offers the flexibility of 4 topand 4 side entries, allowing multiple inletconnections. Specifically designed to prevent
cross-flow and to allow multiple low level bathor shower waste pipes to be connected to thestack above floor level.
Adjustable bendsAvailable in 82, 110 and 160mm and canbe adjusted by cutting the fitting at therequired angle and solvent welding the two
sections together.
Code Angle achieved
SB37 11 87
SB46 5 14
SB47 21 90
SB67 15 90
5 boss branch, 87 push-t
sockets/spigotThe Marley range of five boss branches aredesigned to allow multiple waste pipe connections
to be made to the discharge stack from differentdirections. Four different side entry combinationsare possible together with a rear, if required.
PVCu Soil Push-t or solvent weld
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9MARLEY Soil & Waste Systems |MARLEY Soil & Waste Systems All documentation is available to download from marley.co.ukTechnical hotline: 01622 852695
Design
L = 450mm up t three streys hghL = 740mm up t fe streys hghL = e strey heght, er fe streys
UBL488 r2 UB455 bes
SWS415/41bss ppe
L
Dimensions and weights
PipeMaterial
Standard
BS nominalsize (mm/
inch)
Min MaxWall
thickness
(mm) Min
Weight
kg/metre
Soil PVCu
BS 4514 82 82.4 82.8 3.20 1.30
BS EN 1329 110 110.0 110.3 3.20 1.70
160 160.0 160.4 3.20 2.50
Waste 32/1 32.00 32.30 1.80 0.33
PVC-c 40/1 40.00 40.30 1.80 0.41
BS EN 1566 50/2 50.00 50.30 1.80 0.57
Waste 32/1 36.15 36.45 1.80 0.20
ABS 40/1 42.75 43.05 1.80 0.26
BS EN 1455-1 50/2 55.75 56.05 1.80 0.35
Waste
Polypropylene 32/1 32.00 32.30 1.80 0.21
BS EN 1451 40/1 40.00 40.30 1.80 0.26
Overflow
PVCu 21.5/ 21.55 21.70 1.10 0.11
BS EN 806-4
Secondary ventilated stack
Stack size Secondary vent Maximum capacity (l/s)
(mm) (mm) Swept entries
82 50 3.4
110 50 7.3
160 80 18.3
Primary ventilated stack
Stack size Maximum capacity (l/s)
(mm) Swept entries
82 2.6
110 5.2
160 12.4
lg raus beUBL488
m 200mmraus
Methods of jointingWhile the principal method of jointing 82, 110 and 160mm pipes and fittings is push-fit,many components in the range are also availa ble with sockets that allow for solvent weld jointing.This particular technique is widely used on smaller diameter waste and overflow pipework althoughexpansion and copper adaptor couplings include a push-fit joint to allow for thermal movement.
As polypropylene cannot be solvent welded, the push-fit method of jointing is used throughoutthe system.
Thermal movementThe coefficient of linear expansion for PVCu is 0.06mm/m/C. As a result a 3m length ofpipe will increase in length by approximately 3.6mm when subjected to a 20C temperaturevariation. Therefore, it is important to ensure that any movement is controlled and push-fitjoints are installed to accommodate any expansion that may occur due to increases in ambienttemperature or hot water discharges.
sletwel jt
push-ftjt
Bends at the base of stacksBends at the base of vertical stacks should be of long radius and have aminimum centre line radius of 200mm on a 110mm nominal size st ack.Two 45 radius bends may also be used as an alternative to provide thechange of direction and connection to the building drain. The samedesign principle should also be adopted where offsets occur in stacks ofone or more storey height.
Where pipework is suspended in a ceiling void or car park, it isrecommended that two 45 solvent weld bends are used with a shortpiece of pipe between to ensure the radius exceeds that required.
Sanitary pipework design
All sanitary pipework systems should be designed to satisfy t he following regulations and standards where applicable.
The Building Regulations 2010: Approved Document H, Section 1.
The Building Standards Technical Handbook (Scotland) 2010: Part M.
The Building Regulations (Northern Ireland) 2000, Technical Handbook N.
BS EN 12056: 2000, Parts 1 to 5.
Regular consultation is essential between Architects and Plumbing Engineers throughout the building design stage as the careful arrangement ofkitchen and bathroom appliances will simplify the final sanitary pipework layout. This will help to ensure that an efficient sanitary pipework systemis installed at minimum cost.
The design information provided in this catalogue is endorsed in the above publications and while every effort has been made to ensure accuracy,no responsibility can be accepted for errors or omissions. For detailed guidance please consult the relevant documents referred to above.
Branches at the base of stacksFor single dwellings up to three storeys high, the distance between thecentre line of the lowest branch connection and the invert of the drainshould be at least 450mm. For multi-storey systems up to five storeyshigh, the minimum distance should be 740mm and for systems higherthan five floors no connections are permissible at ground floor level.Where this occurs a separate stub stack should be provided to s erve theground floor or individual appliances should have their own separateconnection to the building drain.
Material and manufactureMarley Plumbing & Drainage pipes and fittings for domestic sanitarypipework systems are manufactured from different plastics materials
including PVCu, PVCc, ABS and Polypropylene.
The table right details the important dimensions and weights of each ofthe systems together with the relevant British and European Standard. Allpipes are manufactured using a continuous extrusion process and fittingsare produced by high-pressure injection moulding.
Chemical and temperature resistanceMost plastics used for sanitary pipework are highly resistant to thosechemicals normally found in domestic waste water and sewerage systems.Applications where chemicals and higher temperature discharges are likelyto occur, the Marley Akatherm HDPE drainage range may be more suitable.
Generally the maximum working temperature of Marley soil and wastesystems when subjected to continuous flow is 70C and 75C respectively.Higher intermittent discharges of up to 95C may be accommodatedprovided the period of discharge does not exceed two minutes duration.
Alternatively, reference can be made to ISO publications TR10358 &TR7620 which provide comprehensive information on chemical andtemperature resistance of plastics and rubber materials.
Sizing of soil stacksIt is recommended that the guidance given within BS EN 12056, part 2 be adopted when sizing soilstacks. Marley Technical Services Department offer design and installation advice, including the sizing
of soil stacks, for customers who use or specify Marley Plumbing & Drainage products.
Soil stack capacityThe capacity of a soil stack can be increased by the installation of a secondary ventilated stack. Thefollowing information is taken from tables 11 & 12 of BS EN 12056-2: 2000 which illustrates this increase.
Secondary ventilated stack
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11MARLEY Soil & Waste Systems |MARLEY Soil & Waste Systems
Design
Prevention of cross-owWhere small diameter branch waste pipesconnect to a discharge stack they must be
arranged to eliminate the risk of cross-flow fromone branch to the other. A branch creates ano entry zone for opposing waste connections,which varies depending on the stack diameter.No connections should be made within therestricted zone although entry is permissibleon the centre line of the boundary directlyopposite or at right angles.
Offsets in stacksOffsets in the wet portion of a discharge stackshould be avoided wherever possible butwhere they have to be fitted a large radius ortwo 45 bends should be used to create eachchange of direction. Offsets in lightly loadedstacks up to three storeys high do not requireoffset venting but on multi-storey buildings thismay be necessary depending on the loadingof the stack and the numbers of floors abovethe offset. The principles previously describedfor bends and branches at the base of a stackshould also be applied.
Stub waste
This technique is often used to connect isolatedground floor waste appliances such as basins,baths, shower trays and sinks to eliminate exposedpipework or low level ducting. The 110mmunventilated PVCu drain is terminated at finishedfloor level with a reducer and boss adaptor to suitthe size of waste from the appliance.
Stub stacksAn unventilated stub stack terminated with anaccess fitting may be used to connect a groupof ground floor appliances to the building drainprovided the vertical drop to the invert levelof the drain does not exceed 1.5m from a WCand 2.5m from a waste appliance. Where oneor more stub stacks are connected to the samedrain, the head of the run should be ventilatedto atmosphere or air admittance valves fitted toeach stub stack arrangement.
SE40access cap
SWS415/41bss ppe
SY401brach
lg rausbe UBL488
1.5mmax
2.5mmax
SA411/421/42032mm/40mmr 50mmbss cectr
SRM402eccetrc reucer
UB411be
H = 200mm rrespecte f stack ameter
Stack size
(mm)
Height o zone 'H'
(mm)
82 90
110 110
160 250
SWS40bss ppe
SA421bss aaptr
H
The Marley Collar Boss was specifically designed to overcome installation problems imposedby the 200mm restricted zone and to allow multiple low level bath or shower waste pipes to beconnected to the stack above floor level. Cross-flow is prevented as the circular annular chamberprotects the small diameter waste connections from the WC discharge allowing waste water toflow freely and merge below the critical zone.
Different combinations of 110mm branches can be used with the collar boss to accommodatevarious WC positions which may be up to 3 metres from the vertical stack.
Top & side wasteconnections
for maximumexibility, evenin tight spaces.Design prevents
any danger ofcross-ow.
SY401 Equal Branch
Hole cutter locator
No need or pipe to be cuton site, saving installation
time. Comes completewith pre-chamered spigottail or easy jointing.
Factory tted, airtested joint ensuringlong term integrity.
SCBL41 350mmLong spigot tail,
accommodating virtuallyall oor thicknesses.
SFC44 re collar,SFW44 pipe wrap canbe used within theoor slab.
SC41 clip ttedaround socket.
61mm
SA421bss cectr
SY401brach
SCB41cllar bss
8-way collar boss
To prevent cross-flow from a large diameterbranch to a smaller waste connection, the lattershould be made to the stack at or above thecentre line of the largerbranch, at right angles orat least 200mm below therestricted zone. Entry ispermissible on the boundarycentre line directly oppositeor at right angles.
SY405brach
H
Branch pipe gradientsThe gradient of a branch pipe should beuniform and adequate to drain the pipe andappliance efficiently. A minimum gradient of18mm/metre should be adopted for 32, 40 and50mm nominal size pipes but larger diameter82, 110 and 160mm branch runs may be laidflatter at 9mm/metre fall where the dischargeflow rate exceeds 2.5litres/second.
Branch pipe lengthsThe following information is taken from Table 8of BS EN 12056: 2: 2000 and provides generalguidance on the recommended lengths ofunventilated branch pipes for a variety of
sanitary appliances.
Appliances Dia (mm)Min.trap sealdepth (mm)
Max. lengtho pipe (m)
Pip e g radient (%) Max . bend s (No. ) Max . d rop H (m)
Washbasin or bidet 32 75 1.7 2.2 0 0
Washbasin or bidet 40 75 3.0 1.8 to 4.4 2 0
Bath or shower 40 50 No limit 1.8 to 9.0 No limit 1.5
Bowl urinal 40 75 3.0 1.8 to 9.0 No limit 1.5
Trough urinal 50 75 3.0 1.8 to 9.0 No limit 1.5
Kitchen sink 40 75 No limit 1.8 to 9.0 No limit 1.5
Dishwasher or washingmachine
40 75 3.0 1.8 to 4.4 No limit 1.5
WC 110 50 No limit 1.8 min No limit 1.5
The maximum lengths given above may be increased where the branch pipe is ventilated or an air admittance valve is used. For further details refer tothe above standard.
Arcflushactuationplate,
MarleySanitarySystems
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13MARLEY Soil & Waste Systems |MARLEY Soil & Waste Systems
Design
WC manifold systemDeveloped for use in sanitary pipework systemsin schools, hospitals, public and commercialbuildings, the manifold system allows rangesof toilets to be connected to a horizontal floatabove floor level and eliminate the need forspecially fabricated fittings.
The components are suitable for installation ina duct, or for fitting on the surface of the walldirectly behind the pan. Where the manifoldis fitted directly behind the range of toilets,
the minimum distance between the end of theWC spigot and the face of the wall is 150mm.To facilitate varying angles and gradients the110 x 90mm manifold branch has a radialsocket to match both options of adjustableWC bend. When the selected bend is cut tothe appropriate line and solvent welded intothe socket on the manifold branch a uniformfall is obtained between each toilet on thehorizontal float.
To accommodate different dimensionsbetween the WC spigot and horizontal float,the adjustable spigot bend SM43W may betrimmed by up to 35mm or the extension pipeSM45W can be used with the pan connectorSM44W and SA323W cap & seal.
The WC socket on both the SM42W andSM44W must be trimmed to suit the lengthof pan spigot before the SA323W is fitted.
For installation details see page 18.
SM42W& SA323W
SM41W
SY401/SY405branch
110mm float at9mm/metre fall
centre line of WC outletfrom finished floor level
190mm
Manifold branch SM41W with SM43W
Cut line 50 55 60 65 70 75 80 85 90
A projection (mm) 180 180 179 178 177 174 171 167 162
B drop (mm) 69 77 85 93 101 109 116 123 130
Manifold branch SM41W with SM42W
Cut line 50 55 60 65 70 75 80 85 90
A projection (mm) 93 93 92 91 90 87 84 80 75
B drop (mm) 69 77 85 93 101 109 116 123 130
353
0
SM41Wmaflbrach
SA323Wcap & seal
SM42Wajustable WC be
353
0
35
SM41Wmaflbrach
SM44Wpa cectr
SA323Wcap & seal
SM43WajustableWC be
A
B
A
B
Adjustable wall fixing
215mm minimumduct width
W.C. cistern
Flush plate
W.C. frame
front panel
SA323W cap & sealFlush pipe
SM43W WCspigot bend
SM41Wmanifold branch
110mm float
JB42 two peice pipe bracket
with SC621 barrel clip collar
SM44W pan connector
SM41WManifold branch
SM42WadjustableWC bend
W.C. seal & capSA323W
JB42 two peice pipe
bracket with SC621barrel clip collar
110 x 90mm branch SM41W Adjustable bend SM42W with socket
trimmed to suit 50mm pan spigot
WPL42W lwleel trap
bath/shwer
WBA4Wat-syphbttle trap
KT21W etry teeKBA22W45 be
SWS41bss ppe
500mm m40mm
Combined branch wasteA combined branch waste is often used toconnect a bath and/or shower and basin to thedischarge stack as this allows waste pipework tobe neatly concealed in a low level duct.
Where this technique is adopted a 45 entry teemust be used to ensure the basin discharge isswept in the direction of flow towards the stack.The minimum distance between the bath orshower and basin connection should not be lessthan 500mm and it is recommended that ananti-syphon bottle trap is fitted to the basin ora vent provided to protect the appliance fromself-syphonage.
It is recommended that the distance of thecombined waste does not exceed 3 metres,however, experience has shown that longer runsusing 40 or 50mm pipework has proved successfulprovided adequate fall can be obtained to ensureself-cleansing velocity is maintained
Waste trapsGenerally appliances such as sinks, baths andshowers do not suffer from self-syphonage asthe trap seal is replenished at the end of thedischarge due to the flat bottom design of theappliance. Tubular traps are recommendedfor such appliances as they ensure unrestricteddischarge and reduce the risk of blockage andprevent the accumulation of sediment.
Compression jointed polypropylene trapscan be taken apart to remove a blockageor gain access to the waste system
Range includes P-traps, S-traps, bottletraps, bath & shower traps and differentcongurations for washing machines,
dishwashers, 1 or 2 bowl sinks White with 50 or 75mm seal depths
Sizes: 32mm, 40mm, 50mm
The Marley anti-syphon bottle trap,WBA3W/WBA4W, was specially developed toprevent self-syphonage from basins, which canoccur particularly where the waste pipe dropsvertically from the appliance before falling at aneven gradient to the discharge stack.
The trap also eliminates the need for asecondary vent pipe where basins are locatedfurther than the recommended 3m maximumfrom the stack. Non-mechanical, the trapoperates as air is drawn in through a centralby-pass tube to eliminate any syphonic actionand ensure the trap seal is maintained.
The WSB4W shallow trap has a 20mm water seal
and is supplied to satisfy customer demand.It is recommended its use is restricted toground floor baths and showers that dischargedirectly to an external trapped gully. It shouldnot be fitted to a bath or shower where thewaste pipe is connected to a soil stack.
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15MARLEY Soil & Waste Systems |MARLEY Soil & Waste Systems
Design
Durgo air admittance valveThe Durgo valve is designed to reduce thenumber of ventilating pipes and subsequent roofpenetrations in domestic, commercial and publicbuildings. Suitable for use in sanitary pipeworksystems up to ten storeys high, the valve mustbe fitted in a vertical position above the floodlevel of the highest appliance connecting tothe stack. Valves should be installed withinthe building in a ventilated duct or roof spacewhere there is no risk of freezing and must beaccessible for inspection and testing.
The 50, 82 and 110mm size valves have beenassessed by the British Board of Agrment andawarded Certificate No 06/4325 which permitstheir use in accordance with the BuildingRegulations. A copy of the full certificateis available and provides comprehensiveinformation on their use and installation.
When installed the valve will remain closedunless the system is subject to negativepressure whereby the diaphragm will lift andallow air to be drawn in to eliminate syphonicaction. Positive pressure ensures the valvecloses and prevents foul air escaping from thesystem. Each valve is supplied boxed with apolystyrene insulation cover that should remainin position after installation, as this will protectthe valve against freezing, particularly wheninstalled in a roof space.
To ventilate the underground drainage systemand to minimise the effects of back pressureshould a blockage occur, the branch or maindrain serving a stack or stacks fitted with Durgovalves may require conventional venting at apoint upstream of the stack connection.
For up to and including four dwellings, 1, 2, or3 storeys in height, additional drain venting isnot required. Where a drain serves more thanfour such dwellings equipped with the valve,the drain should be vented according to thefollowing rules:
5 to 10 such dwelling conventional ventilationto be provided at the head of the system.
11 to 20 such dwellings conventionalventilation to be provided at the mid-point andat the head of the system.
For multi-storey domestic dwellings (other thanthose referred to previously) and non-domesticbuildings, conventional drain venting should
be provided if more than one such building,each equipped with the valves, is connectedto a common drain which itself is not ventedby means of a ventilating stack or a dischargestack not fitted with a valve.
Stacks should not be fitted with valves whenthe connecting drain is subject to periodicsurcharging or is fitted with an interceptingtrap. An open vent must be provided andthis also applies to stacks that discharge to acesspool or septic tank.
SYS41587.5 Brach
SRM304 110x82mmLeel ert reucer
SE400 Cuplgr ppe scket
BASin FLood LEvEL
BATH/SHoWER
F.F.L.
SC45 Ppe clp
110mm PvCu ppeWBA3Wat syph bttle trapKR210 reucer
KBA2245 be
40mm a
40mm a
WBP42Wlw leel 'p' trap
SWCB9090 cectr
KT2145 tee
SCBL41Cllar bss
SA421Bss cectr
2 45 BeKBA22/KB22
20th
SVP SVP DurgoDurgo Durgo Durgo
Up to 4 dwellings no SVP required
5 to 10 dwellings SVP at head
11 to 20 dwellings SVP at head and mid point
11th 10th 5th 4th 1st
Indicative row of 20 dwellings 3 storeys high (maximum) fitted with Durgo valves
Fire protectionThe Building Regulations 1991 (as amended)require that a building shall be sub-divided intocompartments where necessary to inhibit thespread of fire. Plastics pipework is permittedto penetrate separating walls, compartmentwalls and floors provided the appropriatemeasures are taken to prevent the spread offire in accordance with Part B of the ApprovedDocument (2010).
To comply with this, pipes must be enclosedwithin a fire resistant enclosure which extendsfrom floor to ceiling within each storey. Theenclosure must have a class O internal surfaceand have each side formed by a separatingwall, external wall or by casing. Any casing musthave a minimum hour fire resistance andpenetrations of the duct must be limited to160mm vertical and 110mm horizontal.
Where longer periods of fire resistance arerequired, Marley fire collars or pipe wraps canbe fitted to provide a fire rating of up to 4hours depending on the actual constructiondetail. Tests carried out at the Warrington FireResearch Centre in accordance with BS 476:Part 20: 1987 verified the integrity of eachconstruction detail shown opposite in respectof fire spread.
In addition to the above, tests carried out atFIRTO on a variety of typical sanitary pipeworkarrangements proved that it was possible toachieve up to 1 hour fire rating through acompartment floor without a fire collar or pipewrap where the stack was terminated by an airadmittance valve. Various other arrangementswere also tested and achieved a minimum of
2 hours integrity. The test work and technicalevaluation was independently assessed by theBritish Board of Agrment who issued AgrmentCertificate 86/1785 together with eleven detailsheets illustrating each assembly. Copies of thisoriginal certificate and the detail sheets areavailable from Marley Plumbing & Drainage.
The construction illustrated below achieved a1 hour fire resistance rating without the needfor a fire resistance enclosure. The enclosure isnecessary to achieve a 2 hour rating.
SW40bss ppe
SY401brach
Svd4 durg aramttace ale
SGS41/SA323WWC pa cectr
Flr a eclsure fre stppe at all pegs usgmaterals meetg bulg regulat requremets
SE400 ppescket
Fire collar
fixed to soffit ofconcrete floor
Pipe wrap
fixed within concrete floor
Fire collar
fixed to exposed side offire compartment wall
Pipe wrap
fixed within firecompartment wall
Universal re collar
fixed to soffit ofconcrete floor
Marley Fire Protection Products provide up to 4 hours resistance. Suitable for use with all Marley plastic drainage systems
Fire protection
110mm
SFW44ppe wrap
110mm
SFW44ppe wrap
55-160mm
UFCUersalfre cllar
110mm
SFC44fre cllar
110mm
SFC44fre sleee
SVD4-110mm
B1 rated valve
itted above
lood level o
basin
SVD3-82mm
A1 rated valve
itted below
lood level o
basin
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17MARLEY Soil & Waste Systems |MARLEY Soil & Waste Systems
Installation data
Jointing techniquesThe ring seal has been successfully employed asthe principal method of jointing large diameterPVCu pipes and fittings since their introductionover thirty years ago. This particular techniquehas proved extremely reliable as the joint canaccommodate thermal movement that willoccur as a result of temperature variations. Anexpansion gap of between 5-10mm should beallowed within each ring seal socketas each full length of pipe is installed and fixedusing socket and barrel pipe clips.
Solvent weld jointing is also widely used andmany components in the range are availablewith this facility to provide an effectivealternative. By selecting these fittings a solvent
weld system can be installed, however, ringseal joints must be incorporated to controlthermal movement.
While the most popular method of jointinglarger size PVCu pipes and fittings is by ringseal, with small diameter waste pipework theprincipal choice is usually solvent weld. Wherethis technique is used expansion couplingsmust be introduced where pipe lengths exceed2 metres or between fixed points. The sameprinciple should also be adopted when thepolypropylene push-fit waste system is installed.
It should be noted that polypropylene cannotbe solvent welded and together with the PVCuwaste system must not be fitt ed externallyunless painted to protect it from ultra-violetdegradation.
Pipe supportExperience has proved that an efficient andreliable PVCu sanitary pipework system dependsconsiderably on the attention that is placedon the correct provision of pipe supportbrackets. This is particularly important in multi-storey buildings where care must be taken toensure clips are positioned to control thermalmovement at each floor level.
Plastic coated metal socket clips are designedto fit ring seal sockets and act as anchorbrackets. These used in conjunction with PVCuintermediate pipe clips, control expansion andcontraction and maintain the vertical alignmentof the stack.
Two piece socket clips SC41/61 may be adaptedto suit the appropriate pipe size by using asection of barrel clip collar SC621 to providethe necessary spacer sleeve. The table belowindicates the maximum recommended supportcentres of different size plastic pipe systems.
Marley pipe support systemThe Marley pipe support range was developedto meet the specific requirements of PVCususpended sanitary pipework and drainagesystems. Manufactured in zinc electro platedmild steel for internal use, the versatile rangeof components can be assembled to providea robust, lightweight system suitable for mostapplications. The system also provides suitablecontrol of expansion and contraction.
The arrangements of brackets and channelsupports have been extensively tested andthe assembly techniques used have beensuccessfully employed on many domestic andcommercial installations.
Single supportRecommended for waste or larger diameterpipework fixed within 500mm of the floor soffit.
Double support
Developed for use with larger diameterpipework fixed within 1.0m of the floor soffit.
Pipe brackets
The 110 mm two piece pipe brackets aredesigned to fit round the ring seal socket ofa pipe or fitting. Where intermediate supportbrackets are located, the SC621 PVC barrel clipcollar is used as a spacer sleeve between thepipe and bracket.
Angle and side bracing
Angle braces should be provided at 6m centresto prevent lineal and thermal movement.Side bracing may also be necessary on longruns where there are no side connections toeliminate lateral movement.
Vertical pipes
The transition between vertical and horizontalpipework should be achieved using two 45bends or a single 871/2 long radius bend with asupport bracket positioned as close as possible.
Branch connections
All branch connections into horizontal pipeworkshould be made at 45 to ensure the dischargeis swept in the direction of flow.
Structural xings
It is recommended that 6mm rawlbolt or similarproprietary fixings are used to secure base plateand angle cleats to the structure.
Double support
Pipe materialBS Nominal
pipe size
Horizontal support
(m)
Vertical support
(m)
PVCu 21.5 0.50 1.20
Polypropylene 32 0.50 1.20
40 0.50 1.20
PVCc 32 0.50 1.20
ABS 40 0.50 1.20
50 0.60 1.20
PVCu 82 1.00 2.00
110 1.00 2.00
160 1.20 2.00
Single support
500mm max.
or 600mm withside bracing
anchor bracket
angle brace
intermediate bracket
see table
110mm pipe
r g se al j t sl e t wel j t
expas cuplg KEC2
ppe clps
40mm waste ppe
barrel ppe clp SC45 scket ppe cl p SC41
SC45 ppe clp
SP403 110mmPvCu ppe
2mmaximum
SC41 scket clp
anchor bracket
angle brace
intermediate bracket
1.0m max.
or 1.2m with
side bracing
110mm pipe
see table
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19MARLEY Soil & Waste Systems |MARLEY Soil & Waste Systems
Installation data
Single boss pipes.
Available with ring seal or solventweld sockets for push-fit or solventweld jointing, single boss pipesallow 32, 40 and 50mm waste pipeconnections to be made at 87direct to the vertical stack.
Strap-on-bosses.
Primarily designed to permit 32, 40and 50mm waste pipe connectionsto be made to existing 110mm PVCudischarge stacks, strap-on-bossescan also be used on new systems toprovide flexibility of installation duringdifferent stages of construction.
Multiple entry boss pipes.
Supplied in ring seal or solvent weldoptions, all have 90 boss upstandsmoulded on each fitting with oneinlet port open. Connection is madeusing the appropriate size Marleyboss connector to suit 32, 40 or50mm waste pipes.
Patch bosses.
Suitable for solvent weld jointing tonew and existing 82mm diameterPVCu discharge stacks to accept32, 40 and 50mm size PVCc or ABSwaste pipework.
Boss pipe connectionsFour different types of fitting are available to provide alternative methods of connecting small diameter waste pipes to 82, 110 and 160mm verticaldischarge stacks.
110mm
SWS415/SWS41
110mm
SWS4150/410/420
82mm
SWS332/340/350
SW30/40bss brach
SA411/421/420bss cectr
32, 40 r 50mm ppe
SA411/421/420bss cectr
32, 40 r50mm ppe
SY405brach
SA411/421/420bss cectr
SY405brach
KBK25 r KBK35
kuckle be
SA411/421/420bss cectr
SY405
brach
SA411/421/420
bss cectr
SY405
brach
32, 40 r50mm ppe
WC connectionsTwo different types of connectors are availableto allow connection to vitreous china or stainlesssteel WC pans, slop hoppers and other similarsanitary equipment. Manufactured in PVC andeva (ethylene vinyl acetate) to accommodate arange of outlet sizes between 84 and 110mmsanitary pipework or undergound drainage.
The 90 ST40W, ST41W and SG40W connectorsare supplied complete with flexible seal andretaining cap. Where the SGS41W or STS41Wpan connectors are used, the WC socket must betrimmed to suit the length of pan spigot beforethe SA323W is solvent welded in position.
Ground floor toilets often have their ownconnection to the building drain to eliminatepipework and ducting. Where this occurs bothtypes of connector are suitable for push-fit orsolvent weld jointing to the 110mm PVC drain.
ST40W
solventWC connector
110mm
SWCB90push-fit WCconnector
110mm
SGS41Wsolvent
WC connector
SA323WWC seal andretaining cap
110mm
SWC11push-fitWC connector
110mm
ST40Wsolvent WC connector
110mmPVCu drain
SWCB90push-fit WC connector
110mmPVCu drain
Boss branchesThe Marley range of five boss branchesare designed to allow multiple waste pipeconnections to be made to the dischargestack from different directions. Four differentside entry combinations are possible togetherwith a rear if required. Staggered wastepipe connections, directly opposite are notpermitted as cross-flow could occur.
CompatibilityBoss pipes, boss connectors and strap-onbosses fitted with multi-fit T ring seals aresuitable for use with PVCc or ABS waste systemsto BS EN 1566 or BS EN 1455-1, polypropylene
to BS EN 1451-1 and metric size copper toBS EN 16090.
Un-perforated boss upstands on boss pipes,branches and reducers may be drilled to accept32, 40 and 50mm boss connectors SA411,SA421 and SA420 using a 51mm diameter holesaw. Knuckle bends KBK25 and KBK35 may alsobe used as 90 boss connectors for 40 and50mm PVCc or ABS waste pipework.
Horizontal connectionsThe SWS4135 boss pipe is recommended foruse in horizontal situations where connectionsto 110mm diameter pipe is made at 45. Thisfitting has a 50mm solvent weld socket toaccept PVCc or ABS waste pipes.
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23MARLEY Soil & Waste Systems |MARLEY Soil & Waste Systems
Standards Marley system solutions
BS EN 1329-1: 2000
Plastics piping systems for soil and waste
discharge (low and high temperature)
within the building structure PVCu.
BS 4514: 2001
Specication for PVCu soil and ventilating
pipes, ttings and accessories.
BS EN 1566-1: 2000
Specication for thermoplastics waste pipe
and ttings.
BS 5255: 1989
Specication for thermoplastics waste pipe
and ttings.
BS EN 1455-1: 2000
Plastics piping systems for soil and waste
(low and high temperature) within the
building structure ABS.
BS EN 1451-1: 2000
Specication for polypropylene waste
pipe and ttings.
BS EN 274: 2002
Waste ttings for sanitary appliances.
BS EN 806-4: 2010
Specication for installations inside
buildings conveying water for human
consumption.
BS 5627: 1984
Specication for plastics connectors
for use with horizontal outlet vitreous
china WC pans.
BS EN 14680: 2006
Specication for adhesives for non-pressure
thermoplastics pipe systems.
BS EN 681-1: 1996
Elastomeric seals. Material requirements for
pipe joint seals used in water and drainage
applications. Part 1 vulcanised rubber.
BS EN ISO 9001: 2008
Quality systems. Model for Quality
Assurance in Design, Development,
Production, Installation and Servicing.
BS EN ISO 14001: 2004
Environmental management systems.
Requirements with guidance for use.
Certifcate No. 06/4325 BS EN ISO 9001: 2008
BS EN ISO 14001: 2004
BS EN 1329-1 : 2000
BS 4514 : 2001
BS EN 1566-1: 2000
BS 5255: 1989
BS EN 1455-1: 2000
BS EN 1451-1: 2000
British & European Standards
Accreditations
Marley HDPE
Marley Akatherm HDPE is a drainage system
which offers an alternative solution to cast
iron. It is particularly suited for commercial
applications or where a product with high
impact or abrasion resistance is required,
such as hospitals, hotels, schools, as well as
residential buildings. HDPE will also cope
with temperature variations of -40C to
100C making it ideal for external as well as
internal installations.
Marley dBlue
An Acoustic soil and waste range with a
triple layered pipe providing quick, hygienic
removal of sanitary waste water. The
noise generated by the ow of water is
dramatically reduced making it perfect for
multi-occupancy apartment blocks and high
specication developments.
Marley waste systems
A wide range of PVC-C, ABS and
polypropylene waste ranges from 32mm
to 50mm and in a variety of colours. Therange includes waste traps in a hygienic
white nish and higher specication
chrome nish. Available with solvent weld,
compression and push t jointing.
Marley sanitary
High quality, durable, water and energy
efcient solutions for the modern wash
room, the range includes sanitary frames,
concealed cisterns, ush actuation plates,
linear and point drainage. Ideal for all
situations, from commercial applications,
including special products for schools, to
high specication domestic settings.
Marley rainwater
Seven gutter proles and ve downpipe
options provide a rainwater solution
for any application. Advanced Life4
technology on four of the key proles,
coupled with the benets of the Easyclip
and notching capability combine to make
the Marley rainwater range the most
comprehensive available.
Marley underground systems
The Marley Plumbing & Drainage range
of underground systems include the
solid wall range, predominately for
round the house drainage and Quantum
structured wall range for sewer and
highway drainage applications.
Marley sustainable drainage
The Waterloc250 cell is ideal for use in either
an underground inltration or attenuation
systems. 96% of the cell volume is available
to store water, minimising the extent of
excavation required for the installation. The
range includes Flowloc, a vortex control
device, which controls the rate at which water
is discharged to a surface water drain or
water course.
Marley Alutec
Alutec offer modern and traditional
aluminium rainwater proles, providing
solutions for any type of building. Aluminium
has high visual appeal and durability, lasting
for 50 years or more. The product portfolio
includes Evolve; easy to install, low cost gutter
systems in four proles. The rainwater ranges
are complemented by aluminium soft and
fascia systems and roof & oor outlets.
Equator
Equator is ideal for hot & cold water or
central heating installations. A tamperproof
tting with a unique grip release mechanism
ensuring that the system can only be
disassembled through the use of a special
de-mounting tool. Equator has been designed
to meet the requirements of BS 7291: Parts 1
& 3; Class S. The complete Equator system is
backed by a 30 year guarantee.
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Head Oce
Lenham, Maidstone
Kent ME17 2DE
Tel: 01622 858888
Fax: 01622 858725
Scotland
Birkenshaw Industrial Estate
Uddingston, Glasgow G71 5PA
Tel: 01698 815231
Fax: 01698 810307
xport Division
Lenham, Maidstone
Kent ME17 2DE England
Tel: +44 (0)1622 858888
Fax: +44 (0)1622 850778
June 2012
marley.co.ukFor general enquiries and details ofyour nearest stockist please call thecustomer services department:Tel: 01622 852585
email: marketing@marleypd.com
For Technical advice please call01622 852695
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