Health Business

Evinox Ltd are the UK partner of Physis, the manufacturer of the Pastormaster hot water production and legionella control unit, which offers a unique approach to the eradication of legionella in hot water systems.

The Pastormaster was launched in Spain by Physis and is now is use in 60 Spanish hospitals.  It is also widely used across Europe but relatively new to the UK.  As the UK partner of Physis, Evinox is now launching the unit in the UK.  Unlike any other known anti-legionella treatment process, the Pastormaster concept guarantees permanent destruction of the Legionella present in hot water production systems and distribution circuits.

Cold water from the public distribution system is combined in a ‘mixing unit’ with hot water from the return loop (50°C). It is then heated in a cross-flow temperature transfer unit, taking advantage of the thermal energy produced by the pasteurised hot water, while at the same time preventing the temperature of the water in the distribution system supply loop from exceeding 60°C. Unlike the mixing unit, there is no mixing of water in the temperature transfer unit, only heat exchange.

The heated water then enters a ‘pasteurisation unit’, where it reaches a temperature of 70°C through energy exchange (no mixing) with water from the primary boiler loop at a minimum temperature of 80°C. After the water flows out of the pasteurisation unit, it is kept at 70°C in the ‘pasteurisation temperature maintenance unit’ for a minimum of 3 minutes to ensure destruction of all vegetative bacteria.

After all the legionella and other vegetative bacteria present have been killed, the water runs back to the cross-flow temperature transfer unit, where it flows at 55°C to the supply loop of the distribution system. Thus the Pastormaster achieves continuous hot water pasteurisation and production, keeping the network permanently safe in any of its parts at anytime during the day or night, with or without hot water consumption, and guaranteeing the continual elimination of legionella and other microorganisms. As it applies just a thermal treatment without the use of any chemicals, the Pastormaster method preserves the initial physical/chemical characteristics of the sanitary water for human consumption.

The Pastormaster system is available in the UK from Evinox Ltd.

For more information
Evinox Ltd, Blenheim House
1 Blenheim Road, Epsom,
Surrey, KT19 9AP
Tel: +44 (0)1372 722277
Fax: +44 (0)1372 744477

Web: www.evinox.co.uk/pastormaster.html
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