www.arrowvalves.co.uk copyright 2005-20131

Arrow Valves Ltd – The Water Regulations Solution Specialist

www.arrowvalves.co.uk copyright 2005-20122

Hose Union Tap Applications

• 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

www.arrowvalves.co.uk copyright 2005-20123

Hose Union Taps – Backflow Prevention

Applications can be categorised depending on the type of premises or the use, as either:

House - (domestic)

Non-house - (commercial)

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.

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.

www.arrowvalves.co.uk copyright 2005-20124

House Gardens & Similar Applications

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)

www.arrowvalves.co.uk copyright 2005-20125

Hose Union Taps and Backflow

Courtesy of WRAS

Proposed installations require the water company to “risk-assess”

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:

a. Backflow protection devices appropriate to downstream fluid category; and,

b. Where appropriate, a zone protection system.

www.arrowvalves.co.uk copyright 2005-20126

‘I’ve had my installation risk assessed, now what?’

Fluid Category 5

Fluid Category 4

Fluid Category 3

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

Double Check Valve (ED) e.g. Standpipe model SPED

www.arrowvalves.co.uk copyright 2005-20127

What Hose Union Tap should I use?

YESSee

later slide!

Does it need to be inconspicuous?

minimising the possibility of vandalism and injury

NO

YES

“Conceal-A-Tap”

Model HUC

Tap Box / “Tap Guard”

Model HUTB/S/T/G

Is therea building to

fix to?NO

www.arrowvalves.co.uk copyright 2005-20128

What is a “Conceal-A-Tap” Wall Recessed, Vandal-Proof, Frost-

Proof

Ideal for schools and public buildings

Key Points:

Recessed into thermal envelope of the building and therefore offering:

• Frost protection

Minimal exposed parts reducing:-

• Risk of injury

• VandalismClosed Open

When used with the “Conceal-A-Tap” installation kit provides Fluid Category 3 protection (includes Double Check Valve)

www.arrowvalves.co.uk copyright 2005-20129

What is a “Conceal-A-Tap”?Wall Recessed, Vandal-Proof, Frost-

Proof

Model HUC

www.arrowvalves.co.uk copyright 2005-201210

What is a Tap Box?Wall Mounted, Lockable, Frost

Resistant

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.

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

www.arrowvalves.co.uk copyright 2005-201211

What is a “Tap Guard”?Guarded Hose Tap with Pipe Cover

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.

“Tap Guard” (model HUTG)(shown with optional hose guard)Polished stainless housing.Incorporates Servicing and Double Check Valves

www.arrowvalves.co.uk copyright 2005-201212

What if I don’t have a building to fix to?

NO

Does it need to be inconspicuous?

minimising the possibility of vandalism and injury

NO

YESBelow Ground

Tap

Model HUBG

Is therea building to

fix to?

Fluid Cat 3Standpipe

Model SPWPSC

Fluid Cat 3Standpipe

Model SPTBFluid Cat 4Standpipe

Model SPBA

Fluid Cat 3Standpipe

Model SPED

Fluid Cat 3Standpipe

Model SPWPFluid Cat 3Standpipe

Model SPTG

www.arrowvalves.co.uk copyright 2005-201213

What is a Below Ground Tap?Inconspicuous, Frost Resistant

To be supplied via AB air gap e.g. Break Tank & Booster Set model BTAB

Use where standpipe unsuitable.

www.arrowvalves.co.uk copyright 2005-201214

Which Standpipe?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 SPBA

Includes Reduced Pressure Zone (RPZ)

Valve for Fluid Category 4 protection

Casing provides a degree of frost resistance

Tamperproof if supplied with padlock

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

www.arrowvalves.co.uk copyright 2005-201215

Which Standpipe?

Model SPWPSC

Standpipe with self closing non hose tap and bucket shelf

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 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

www.arrowvalves.co.uk copyright 2005-201216

Standpipe Installation

Installation

750 mm

MDPE Pile

Standpipe

www.arrowvalves.co.uk copyright 2005-201217

Hand Held Hoses

G15.17

Hand held hoses should be fitted with a self closing mechanism at the outlet of the hose.

Medium DutySpray Gun

www.arrowvalves.co.uk copyright 2005-201218

For further guidance or to discuss your particular application,

please contact us:

01442 823123 info@arrowvalves.co.uk