Function

Purachem SRB20 is suitable for use in a wide range of cooling and heating systems.

Purachem SRB20 can be used as a post-commission biocide to proactively prevent any bacteria or algae growth in the system.

Purachem SRB20 can be used as a pre-commission biocide in systems that maybe ‘laid-up’ for some period prior to commissioning.

Utilisation

Purachem SRB20 can be supplied in concentrate and in dilute form. The standard concentration requires 5 litres per 2000 litres of system volume. At this strength lightly contaminated systems can be neutralised in a single operation.

Post-Commissioning;

1. Take a fluid sample before dosing to confirm the level of any existing biological activity.
2. Add Purachem SRB20 at a ratio of 5 litres per 2000 litres of system volume. To ensure effective mixing with the existing system fluid, dose Purachem SRB20 using a proportional mixer or dosing pump.
3. Take a fluid sample three days after dosing to confirm all biological activity has been neutralised.

Pre-Commissioning;

1. Take a fluid sample before dosing to confirm the level of any existing biological activity.
2. Add Purachem SRB20 at a ratio of 5 litres per 2000 litres of system volume. To ensure effective mixing with the existing system fluid, dose Purachem SRB20 using a proportional mixer or dosing pump.
3. Vent the system of any trapped air.
4. Recirculate for a minimum of two hours and leave to ‘stand’ for a minimum of 3 days.
5. Drain all fluids before refilling with the required concentration of inhibited heat transfer fluid and good quality water.
6. Take a sample three days after commissioning to confirm all biological activity has been neutralised.

For more detailed information on the pre-commission cleaning of pipe-work systems, please refer to BSRIA AG1/2001.1 guide via www.bsria.co.uk

Application

Health & Safety: Please refer to the associated Safety Data Sheet - Available via Login or upon request.

Shelf Life: Minimum of 2 years

Availability: Purachem FRB20 ï»¿is available from stock in 5, 10, 15, 20, 25 and 205 litre containers.

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