Pre-Treatment

Puretech Systems Limited is a British engineering company based in London providing pioneering high purity systems worldwide. For over four decades we have created and cared for the delivery of vital purified water, pure steam, high purity gases, medical gases and process systems at medical, pharmaceutical, semiconductor and research facilities throughout the world.
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As market leaders in the design and delivery of raw water pre-treatment systems, Puretech has installed solutions all over the world, each one individually designed and engineered to treat the local water in local conditions to provide the first step of treatment and protection to the water purification technology.
The production of water for pharmaceutical use (WPU) requires potable water. According to the World Health Organisation (WHO), the purification of the water to obtain potable water depends on the source of raw feed water for the system. The feed water available for the production of pharmaceutical waters usually contains different concentrations of solids in suspension and contaminants which must be removed before feeding the equipment for pure water production. These contaminants or compounds are usually oxides of iron and manganese, calcium, magnesium, solids in suspension of various sizes, soluble salts, organic compounds etc..
The retention devices commonly used in pre-treatment are:
- Multimedia filters
- Duplex softeners
- Particulate filters
- Dosing of chlorine, NaOH, metabisulphite.
Puretech’s modular raw water pre-treatment systems, which are skid mounted and manufactured in the UK, are designed according to the local characteristics of the incoming raw water. Pre-treatment systems ensure that all contaminants or compounds are removed from water in its raw state prior to the purification process. Typically, pre-treatment includes water softening, for hard water areas, chlorine removal, and particulate filtering, all stages of which are imperative for the safe running and longevity of the generation systems.
With over thirty years of experience in the design and delivery of pre-treatment systems and as the manufacturers of the GENYSYS, ASEPSYS and OASYS purification systems, we have an unparalleled understanding of the requirements of clients requiring pharmaceutical grade water, steam and gas systems across the globe.

Service & Maintenance
Puretech have nearly 30 years’ experience of servicing and maintaining pharmaceutical, validated water systems.
Our service contracts are tailored to our clients individual needs and the service is expertly provided through our network of experienced and qualified engineers.
We can offer contracts of 1-5 years with the numbers of visits specified by you. All of our contracts as standard receive 24/7 telephone support, recommended spare parts list and a detailed service report to ensure you comply with all regulatory body standards.
Let’s Discuss How We Can Work Together!
We would welcome the opportunity to discuss how Puretech can become your trusted partner. We’d love to schedule a meeting to explore potential synergies and discuss how we can support your design projects with our expertise.
Please contact us for further information
- Email: sales@puretech.uk.com
- Phone: +44 (0) 1737 378 000
- Website: www.puretech.uk.com