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Foam chamber is used in one of the most common application to protect vertical fixed roof (cone) liquid storage tanks, with or without internal floating roof with the low expansion foam system. The application of foam is on the basis that the risk comprises the total surface area of the fuel.
| Model | PCL4 | PCL8 | PCL16 | PCL24 |
| Flow rate | 4LPS | 8LPS | 16LPS | 24LPS |
| Working pressure | 0.3Mpa to 0.6Mpa | |||
| Foam expansion | ≥6times | |||
| K-factor | 5.75 | 11.5 | 23 | 34.5 |