{"id":3108,"date":"2018-11-07T16:38:12","date_gmt":"2018-11-07T16:38:12","guid":{"rendered":"https:\/\/staging3.rjurmson.com\/nationalhygieneservices\/?post_type=avada_portfolio&p=3108"},"modified":"2026-02-11T12:48:52","modified_gmt":"2026-02-11T12:48:52","slug":"pre-commissioning-chemical-cleaning-treatment","status":"publish","type":"avada_portfolio","link":"https:\/\/rjurmson.com\/nationalhygieneservices\/projects\/pre-commissioning-chemical-cleaning-treatment\/","title":{"rendered":"Pre-commissioning chemical cleaning treatment"},"content":{"rendered":"

Pre-commissioning chemical cleaning removes installation debris, corrosion products,\u00a0<\/span>scale<\/span>\u00a0and biological fouling from new closed water systems. Delivered in line with BSRIA BG 29\/2021, our service ensures LTHW, LPHW, MTHW, HTHW, chilled water and condenser circuits\u00a0<\/span>operate<\/span>\u00a0efficiently, reliably and are protected from early system failure.<\/span><\/span>\u00a0<\/span><\/p>\n<\/div><\/div><\/div>

\"Pre-commissioning<\/span><\/div><\/div><\/div><\/div><\/div>

Why\u00a0Pre-Commissioning Chemical Cleaning\u00a0is Required<\/span><\/b>\u00a0<\/span><\/h3>\n

All newly installed closed water systems,\u00a0including LTHW, LPHW, MTHW, HTHW, chilled water and condenser water circuits should undergo pre-commissioning chemical cleaning prior to handover.<\/span>\u00a0<\/span><\/p>\n

The controlled use of specialist cleaning chemicals enhances the flushing process, removing:<\/span>\u00a0<\/span><\/p>\n

    \n
  • Soluble contaminants<\/span>\u00a0<\/span><\/li>\n<\/ul>\n
      \n
    • Installation debris<\/span>\u00a0<\/span><\/li>\n<\/ul>\n
        \n
      • Corrosion residues<\/span>\u00a0<\/span><\/li>\n<\/ul>\n
          \n
        • Scale<\/span>\u00a0<\/span><\/li>\n<\/ul>\n
            \n
          • Biological fouling<\/span>\u00a0<\/span><\/li>\n<\/ul>\n

            This process is a key requirement under BSRIA BG 29\/2021 and plays a critical role in achieving correct system flow rates, heat transfer\u00a0efficiency\u00a0and long-term reliability.<\/span>\u00a0<\/span><\/p>\n

            Ongoing Monitoring & Maintenance<\/span><\/b>\u00a0<\/span><\/h3>\n

            Following pre-commissioning chemical cleaning, closed systems must be carefully\u00a0monitored\u00a0and regularly\u00a0maintained\u00a0throughout the life of the building. Implementing a structured monitoring and maintenance regime helps preserve water quality, protect system\u00a0components\u00a0and prevent premature deterioration.<\/span>\u00a0<\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div>

            \n

            Our engineers are not only fully trained in carrying out pre commission chemical cleaning treatments, but also in ensuring the safety of everyone whilst cleaning is carried out. All engineers carry the CSCS passport to safety and are all enhanced DBS checked to ensure confidence when working on site and in areas with vulnerable people.<\/p>\n<\/div>

            <\/div><\/div><\/div>

            Our pre commission chemical cleaning treatment to BSRIA BG 29\/2021 service includes:<\/h3><\/div>
            • <\/i><\/span>
              \n

              Static flush<\/p>\n<\/div><\/li>

            • <\/i><\/span>
              \n

              Dynamic flush<\/p>\n<\/div><\/li>

            • <\/i><\/span>
              \n

              Recording of flow rates<\/p>\n<\/div><\/li>

            • <\/i><\/span>
              \n

              Biocide wash (if required followed by a second dynamic flush)<\/p>\n<\/div><\/li>

            • <\/i><\/span>
              \n

              Chemical Clean<\/p>\n<\/div><\/li>

            • <\/i><\/span>
              \n

              Dynamic flush<\/p>\n<\/div><\/li>

            • <\/i><\/span>
              \n

              Passivation<\/p>\n<\/div><\/li>

            • <\/i><\/span>
              \n

              Back flushing of all associated units and terminals<\/p>\n<\/div><\/li>

            • <\/i><\/span>
              \n

              Corrosion inhibitor and biocide dosing<\/p>\n<\/div><\/li><\/ul>

              \"Pre-commissioning
              <\/span><\/span><\/div><\/div><\/div>

              Why Choose Us?<\/strong><\/h3>\n

              Our collaborative and proactive approach drives efficiency, cost savings and offers our clients peace of mind. We are committed to continuous improvement, through innovation and investment in our personnel, methodologies and equipment.<\/p>\n

              We offer extremely competitive rates and daytime, evenings or weekends to offer minimal disturbance to our customers.<\/p>\n<\/div>

              FAQ\u2019s<\/span><\/b>\u00a0<\/span><\/h3>\n

              What is pre-commissioning chemical cleaning?<\/span><\/b>\u00a0<\/span><\/p>\n

              It is the process of removing installation debris, corrosion products,\u00a0scale\u00a0and biological fouling from newly installed closed water systems before handover.<\/span>\u00a0<\/span><\/p>\n

              Which systems require pre-commission chemical cleaning?<\/span><\/b>\u00a0<\/span><\/p>\n

              All newly installed LTHW, LPHW, MTHW, HTHW, chilled water and condenser water systems.<\/span>\u00a0<\/span><\/p>\n

              What standard governs pre-commission chemical cleaning?<\/span><\/b>\u00a0<\/span><\/p>\n

              Pre-commission chemical cleaning should be carried out\u00a0in accordance with\u00a0<\/span>BSRIA BG 29\/2021<\/span><\/b>, with supporting guidance from BS 7593 and BSRIA BG 50.<\/span>\u00a0<\/span><\/p>\n

              Why is passivation included in the process?<\/span><\/b>\u00a0<\/span><\/p>\n

              Passivation protects internal metal surfaces after cleaning, reducing the risk of early corrosion and extending system life.<\/span>\u00a0<\/span><\/p>\n

              Is ongoing monitoring\u00a0required\u00a0after cleaning?<\/span><\/b>\u00a0<\/span><\/p>\n

              Yes. Closed water systems must be regularly\u00a0monitored\u00a0and maintained throughout the life of the building to\u00a0maintain\u00a0performance and compliance.<\/span>\u00a0<\/span><\/p>\n<\/div><\/div><\/div>

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