What is the difference between a cofferdam and a fire dike as defined in petrochemical fire protection standards?

2019-07-29View Original

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What is the difference between a cofferdam and a fire dike as defined in petrochemical fire protection standards?

Reply #22019-07-29

The cofferdam is lower than the fire dike, which is higher; the cofferdam is generally 20–30 cm high.

Reply #32019-08-01

The fire dike is usually located on the periphery, while the cofferdam is generally inside the fire dike. The cofferdam generally serves to create a separation inside

Reply #42019-08-01

You mean the dike. By cofferdam, we generally refer to a low barrier installed in the plant area to prevent minor leaks or the spread of residual materials during maintenance; according to Section 5.2.28 of the petrochemical regulations, the height of such a cofferdam must be no less than 150 mm.

Reply #52019-08-01

Yes, the dike is inside. Thank you

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