
The Mesa Foam Delivery System (FDS) is an efficient method
to extinguish rim fires on floating roof storage tanks located in
refineries, pipelines and marketing tank terminals. Mesa’s FDS
is designed to provide fast delivery of fire extinguishing foam
through pipelines in the center of the tank and directly out to the
tank rim areas.
Foam System Advantages
- Provides economical solution
- Ensures rapid response
- Directly delivers foam to rim area
- EFRT and IFRT compatible
- Operates with minimal maintenance
- Reduces risk of serious property damage or injury
- Engineered to NFPA guidelines
- Integrates with tank design

Foam System Design
From the proportioning and pumping equipment positioned outside the dike wall, a high back pressure
foam generator is used to direct fire extinguishing foam through rigid pipe to the base of the tank shell.
The pipe passes through the tank shell and extends to a point near the center of the tank.
A Mesa Resist-All-Clad smooth bore flexible foam line is attached to the rigid pipe within the tank and is
connected to a double flanged spool piece mounted to the roof.

is sized according to NFPA guidelines, which determine the required G.P.M. and number of discharge
outlets for the tank’s diameter and seal rim space area.
From the distribution manifold outlets, flex-connectors and radial piping are used to transport the foam
across the floating roof directly to the rim seal area regardless of the position of the roof.

- High-Back Pressure Foam Makers
- Mesa Flexible Piping (Foam Lines)
- Double Flange Spool Pieces
- Foam Distribution Manifold (Multiple Ports)
- Stainless Flex Connectors
- Radial Piping
- Flexible Seal Boots with Hardware
- Foam Dam Systems (Above-Seal Applications)









