The result is that contaminated dishwater can never enter the fresh water inlet. Potable Water Tanks, Feed & Expansion Tanks, Chemical Tanks, Screened Inline Overflows for existing pipework, Overflow Kits and Inline Overflows Landing, eCommerce Software Shopping Cart Solutions. From this tank, water is then fed into the dishwasher. UK Water Board Regulations require commercial dishwashers to be fitted a Break Tank (Type ‘A’ Air Gap) wherever an installation is rated as being at category 5 level of risk or higher. It is possible your plumbing already has a device in the system at an earlier point which does the same job. FIXED HEADAn irrigation system, without insecticide or fertiliser additives, which has sprinkler heads fixed not less than 150mm (six inches) above the ground, is assessed as a Fluid Category 3 risk. Drayton Tank are the UKs leading suppliers of Insulated Hot & Cold Water Storage Water Tanks.

For the best experience on our site, be sure to turn on Javascript in your browser. This separate tank has an ‘air gap’ (a simple opening at the top that acts as an overflow). cookies.

The purpose of WRAS is to contribute to the protection of public health by preventing contamination of public water supplies and encouraging the efficient use of water by promoting and facilitating compliance with the Water Supply (Water Fittings) Regulations and Byelaws in Scotland.

(TYPE AB AIRGAP), Type AB Airgap for fitting to existing tanks, Drayton Tank & Accessories Ltd : 3 Crown House : Market Street : Penistone : Sheffield : South Yorkshire : S36 6BZ Used with the bracket it ensures compliance with BS8515 and BSEN13076 - "Devices to prevent pollution by back-flow of potable water".

A break tank is often referred to as a ‘Type A’ Air Gap but must not be confused with a ‘WRAS approved non-return valve’ as it provides an entirely different method of operation. fed from storage). This ensures that in the event of a fault in the dishwasher causing a backflow, contaminated water can only ever reach back into the break tank before it overflows through the ‘air gap’. This ensures that in the event of a fault in the dishwasher causing a backflow, contaminated water can only ever reach back into the break tank before it overflows through the ‘air gap’. The 3P Tundish acts as a Type AA air gap to prevent back-flow. It can be protected against backflow by a double check valve or another device which provides protection to at least the Fluid Category 3 level. In situations where the Tundish outlet pipework is at risk of being compromised, frozen, compressed or blocked, the 3P Tundish overflow can take this backed up water to a safe point of disposal. For example a Type AA air gap or a Type AUK1 air gap (ie. For example, a Type AF air gap or a reduced pressure zone valve (Type BA) mechanical backflow prevention device. We help You Buy Them!". For example, a single check valve (Type EA or EB) mechanical backflow prevention device. The calculator shows the minimum distances and values required to … means a non-mechanical backflow prevention arrangement of water fittings where water is discharged through an air gap into a receptacle which has at all times an unrestricted spillover to the atmosphere. Like continued... Consultation on Regulation 4(1)(a) guidance.

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