Products Description
Foam chamber for floating roof tank is a shell-mounted device that delivers expanded foam gently onto the rim-seal area of an external floating-roof (EFR) tank during a seal fire. It mixes foam solution with air, expands it, and directs it via a deflector onto the seal without excessive agitation.
Inlet & Orifice plate – sets the flow (K-factor) at a given pressure.
Body / Expander – entrains air to create expanded foam.
Vapor seal – frangible glass or elastomeric membrane that isolates the tank's vapors until discharge; breaks/opens when flowing.
Deflector – throws foam laterally onto the rim-seal; shaped to avoid splash and fuel pick-up.
Inspection/test port (optional) – allows proving flows without entering the tank.
Drains & corrosion protection – to avoid standing liquid and corrosion.
Products Parameters
|
Model Number |
Type |
Flow Rate |
Inlet Size |
Outlet Size |
|
PCL4 |
Low Expansion,vertical |
240LPM |
50mm(2'') |
80mm (3'') |
|
PCL8 |
Low Expansion,vertical |
480LPM |
65mm(2.5'') |
100mm(4'') |
|
PCL16 |
Low Expansion,vertical |
960LPM |
80mm (3'') |
150mm(6'') |
|
PCL24 |
Low Expansion,vertical |
1440LPM |
100mm (4'') |
200mm (8'') |
FAQ
Q: Why is a foam chamber used in floating roof tanks?
It allows safe and controlled application of foam directly onto the tank's liquid surface or into the foam dam, preventing ignition, extinguishing fires, and reducing vapor release.
Q: How does a foam chamber work?
Foam solution enters the chamber through a piping system.
Inside, a deflector or air inlet induces air, generating foam.
The foam is directed through a discharge outlet toward the foam dam on the floating roof, gently spreading across the liquid surface.
Q: What standards govern foam chamber design?
Foam chambers are typically designed according to NFPA 11, API 2030, and local fire safety codes.
Q: Where is the foam chamber installed on a floating roof tank?
It is mounted on the tank shell above the floating roof deck level, connected to the foam pourer and directed toward the foam dam.
Q: Can a foam chamber also be used for nitrogen inerting or vapor suppression?
No. Foam chambers are designed solely for fire protection foam delivery, not for inert gas injection or vapor control.