1. Arrow Valves Ltd – The Water Regulations Solution Specialist
July 2005
Arrow Valves Ltd – The Water Regulations Solution Specialist
HOSE UNION TAPS
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2. Hose Union Tap Applications
July 2005
Car Parks
Private Residential and Public Gardens
Washdown
Garages and Vehicle Washing
Commercial and Industrial Yards
Building Sites
Retail Parks
Golf Courses and Bowling Greens
Caravan Sites
Garden Centres
Marinas
Dairies and Food Preparation
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3. Hose Union Taps – Backflow Prevention
July 2005
Applications can be categorised depending on the type of premises or the use, as either:
House - (domestic)
The Regulations do not define “Domestic”.
Generally domestic means used in a house.
The term house includes flat and bungalow.
“House Garden” includes recreational area.
Non-house - (commercial)
The Regulations do not define “Commercial”.
Generally commercial means not used in a house environment.
Non-house situations include offices, factories and schools
Agricultural and horticultural applications are considered
non-house.
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4. House Gardens & Similar Applications Double Check Valve (model ED132)
July 2005
G15.20
Taps to which hoses are, or may be, connected and located in house garden locations are to be protected against backflow by means of a double check valve.
The double check valve should be located inside a building and protected from freezing.
Double Check Valve (model ED132)
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5. Hose Union Taps and Backflow
July 2005
G15.18
Any taps and fittings used for supplying water for non domestic applications such as commercial, horticultural, agricultural or industrial purposes should be provided with:
Backflow protection devices appropriate to downstream fluid category; and,
Where appropriate, a zone protection system.
Proposed installations require the water company to “risk-assess”
Courtesy of WRAS
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6. ‘I’ve had my installation risk assessed, now what?’
July 2005
Fluid Category 5
To be supplied via AB air gap e.g. Break Tank & Booster Set model BTAB
Reduced Pressure Zone (RPZ) Valve (BA device), or DB Pipe Interrupter e.g. Standpipe model SPBA
Fluid Category 4
Fluid Category 3
Double Check Valve (ED) e.g. Standpipe model SPED
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7. What Hose Union Tap should I use?
July 2005
“Conceal-A-Tap”
Model HUC
YES
Does it need to be inconspicuous? minimising the possibility of vandalism and injury
Is there a building to fix to?
See later slide! NO
YES NO
Tap Box / “Tap Guard”
Model HUTB/S/T/G
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8. What is a “Conceal-A-Tap” Wall Recessed, Vandal-Proof, Frost-Proof
July 2005
Key Points:
Recessed into thermal envelope of the building and therefore offering:
Frost protection
Minimal exposed parts reducing:-
Risk of injury
Vandalism
Closed
Open
When used with the “Conceal-A-Tap” installation kit provides Fluid Category 3 protection (includes Double Check Valve)
Ideal for schools and public buildings
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9. What is a “Conceal-A-Tap”? Wall Recessed, Vandal-Proof, Frost-Proof
July 2005
Model HUC
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10. Wall Mounted, Lockable, Frost Resistant
What is a Tap Box?
Wall Mounted, Lockable, Frost Resistant
July 2005
HUTB is rear entry, with copper tube passing through the wall, providing additional frost protection
HUTBS is surface entry enabling “daisy-chaining”
HUTBT is top entry with supply pipe surface run above Tap Box
The tap box is tamperproof by means of a hinged lid, which can be padlocked shut.
Foam insulation around the valve provides an element of frost resistance.
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11. Guarded Hose Tap with Pipe Cover
What is a “Tap Guard”?
Guarded Hose Tap with Pipe Cover
July 2005
“Tap Guard” (model HUTG)
(shown with optional hose guard)
Polished stainless housing.
Incorporates Servicing and Double Check Valves
Supplied with Servicing Valve, Double Check Valve, insulation, hose connector plug and ten stainless steel screws.
The tap box is tamperproof by means of a hinged lid, which can be padlocked shut.
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12. What if I don’t have a building to fix to?
July 2005
Below Ground Tap
Model HUBG
YES
Does it need to be inconspicuous? minimising the possibility of vandalism and injury
Is there a building to fix to? NO
Fluid Cat 3 Standpipe Model SPTB
Fluid Cat 3 Standpipe Model SPWP
Fluid Cat 3 Standpipe Model SPWPSC NO
Fluid Cat 3 Standpipe Model SPTG
Fluid Cat 3 Standpipe Model SPED
Fluid Cat 4 Standpipe Model SPBA
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13. What is a Below Ground Tap? Inconspicuous, Frost Resistant
July 2005
Use where standpipe unsuitable.
To be supplied via AB air gap e.g. Break Tank & Booster Set model BTAB
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14. Which Standpipe? Model SPED
July 2005
Model SPED
Double Check Valve provides Fluid Category 3 protection
Casing provides a degree of frost resistance
Padlock required to hold cover shut, making the Standpipe tamperproof
Model SPTG
Double Check Valve provides Fluid Category 3 protection
Flanged base designed to be bolted to horizontal hard surfaces – e.g. flat roofs
Hinged tap cover can be secured using optional padlock
Model SPBA
Includes Reduced Pressure Zone (RPZ) Valve for Fluid Category 4 protection
Casing provides a degree of frost resistance
Tamperproof if supplied with padlock
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15. Which Standpipe? Model SPWP
July 2005
Model SPWP
“WaterPoint” with internal shelf, which recesses into the top cap when not in use, preventing injury
Padlock required to hold cover shut, making the Standpipe tamperproof
Incorporates Double Check Valve providing Fluid Category 3 protection
Model SPTB
Miniature Tamperproof Standpipe – ground mounting
Incorporates Double Check Valve providing Fluid Category 3 protection
Model SPWPSC
Standpipe with self closing non hose tap and bucket shelf
Incorporates Double Check Valve providing Fluid Category 3 protection
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16. Standpipe Installation
July 2005
Installation
Standpipe
750 mm
MDPE
Pile
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17. www.arrowvalves.co.uk copyright 2005-2012
Hand Held Hoses
July 2005
Medium Duty Spray Gun
G15.17
Hand held hoses should be fitted with a self closing mechanism at the outlet of the hose.
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18. www.arrowvalves.co.uk copyright 2005-2012
July 2005
THE END
For further guidance or to discuss your particular application, please contact us:  
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