Doyles Plumbing
Brisbane
PO
box 848 Kenmore Brisbane 4069 Ph: (07)
3378 3641 Fax: (07)
3378 2659 E-mail
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Site By Globalconnective
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Back flow valves are required in domestic, commercial & industrial application. In a domestic situation generally the
only backflow protection you need is one of the following:
1: Backstop valve- a non testable device fitted to your hose tap to prevent back siphonage through your hose into your drinking water. For low risk areas.
2: Vacuum breaker valve- a non testable device fitted to your hose tap to prevent back siphonage through your hose into your drinking water. For low risk areas.
3: Dual check valve- a non testable device fitted to appliances which use drinking water such as a dishwasher or water filter. These are also used on domestic watering systems. For low risk areas.
Most of these valves are not repairable.
In commercial & industrial applications much more reliable valves are use which are tested every year. These valves are one of the following:
1: Double Check valve (DCV)- these are used in medium risk areas where if backflow occurs minor illness can occur. This valve is fully serviceable and testable.
2: Reduced Pressure Zone valve (RPZ)- these are used in high risk areas where if backflow occurs serious illness or death can occur. This valve is fully serviceable and testable.
For a more detailed explanation follow this link http://www.tycoflowcontrol.com.au/ and look in industrial /backflow/overview brochure.
Contact Us for further details
M: 0421 006 809
