Water Regulations AB Air break 

The WATER SUPPLY (WATER FITTINGS) REGULATIONS 1999 mandates that a private water supply must not be allowed to cross contaminate with water supplied by a water authority unless an AB air break is installed.

Many customers believe that double check valves are acceptable. This is not so as they are mechanical valves, subject to breakdown and therefore unacceptable to the regulation authority.

To achieve this compliance, systems using booster pumps and tanks have been designed and examples from Grundfos and Lowara are available. The Lowara  system is detailed below.

Lowara MINI V and MINI VV system

Lowara Booster sets complete with break tank - suitable for boosting cold water via type A/B air gap fitted with either the Teknospeed or Hydrovar energy saving

variable speed drive. Suction break tank low-level switch available.
Flexible pipe connections available. Special booster sets and larger performance boosters can be built to suit specific requirements.
HM/CA/CEA and e-SV versions available.

SPECIFICATIONS

Delivery: up to 7,00m3/h
Power supply: single-phase 50 Hz
Head: up to 5 bar
Power: from 0,03 kW to0,92 kW
Optional: P.R.V.
Tank: 250 to 1370 litre type A/B break
tank

MATERIALS

Pump: Stainless steel
Tank: GRP

APPLICATIONS

• Domestic, commercial, industrial
and building applications.

Grundfos BYE-PAC  system  

The Grundfos AB Air break system is very similar in design to the Lowara package.

For further information please do not hesitate to contact us on one of the following numbers

UK Freephone  08000 748132

Overseas          +44 (0) 1769 575990

Please do not hesitate to telephone us as we are happy to discuss your requirements with you. 

FREEPHONE (UK Only): 08000 748132  FROM ABROAD: 00 44 1769 575990