Description
PT4F / AT-2320 is a high performance, combined scale and corrosion inhibitor for boilers & closed heating systems scientifically formulated for the treatment of boiler water systems & Closed Loop heating systems.
PT4F / AT-2320 comprises a blended liquid formulation based on organic tannin, polymer sludge conditioners, and alkali.
PT4F / AT-2320 can be used either by itself or in conjunction with other supplemental treatments to give a balanced treatment programme.
PT4F / AT-2320 does not add substantially to the boiler water alkalinity, and hence is an ideal treatment for boilers that are susceptible to foam formation.
PT4F / AT-2320 controls corrosion by the dual mechanism of oxygen scavenging and the formation of a corrosion resistant tannate film. It prevents scale formation by converting residual hardness salts to mobile non-adherent sludge that can be removed by blowdown in boilers.
Product Benefits
- Excellent tannin based scale and corrosion inhibitor for boilers.
- Does not add substantially to boiler water alkalinity.
- Ideal for boilers susceptible to foam formation.
- Ideal for heritage steam boiler applications – higher tannin concentration than other heritage marketed products
- Suitable for boilers containing copper plating.
Product Properties
| Appearance: |
Dark brown liquid |
| pH: |
~ 11 |
| Flammable: |
Non-flammable |
| Volatility: |
Non-volatile |
*Full details of the product properties are available in the Safety Data Sheet. See below.
Application & Dosage Information
The dosage of PT4F / AT-2320 depends on such variables as feedwater temperature, boiler blowdown and workload.
Recommended initial dosage rate
1 litre / 1000 litres of system water and make-up
Example Boiler control limits
pH 10+
Tannin Units: 12 – 20 / 120 – 200ppm
TDS: 3500mg/l max.
How to use it
PT4F should be added to the system at an initial dosage rate of 1 litre/ 1000 litres of system water content whenever the system is drained or loses a significant quantity of water then the additional PT4F should be added at the rate of 1 litre / 1000 litres of water added, with any adjustments based on the reserve.
It is always advisable to carry out a ‘Control Of Substances Hazardous to Health’ (COSHH) assessment before use.
Safety, Storage & Handling
For full details concerning safety precautions, storage and handling procedures for this product please refer to the latest Safety Data Sheet.
To request the latest MSDS for this product please fill out the form below.
