Bele S-250/400 high expansion foam generator

Description

The Bele high-expansion foam generator is designed for total flooding systems or local application of high expansion foam. The massive volume of expanded foam will keep the water application to a minimum and extinguish through a combination of vapour surpression, cooling, oxygen reduction and wetting capability. Depending on foam concentrate used, it is also suitable for inside/hot air applications and polar solvents.
As standard, the Bele S-250/400 series have stainless steel 304 body, carbon steel red epoxy painted (RAL 3000) connection piping and brass nozzles.

Features

  • For inside air use
  • Excellent foaming properties
  • Recommended foam Fomtec LS range
  • DIN or ANSI flange option
Bele S-250/400 high expansion foam generator

Application

The Bele high expansion foam generators can be used for
applications such as:

  •  Aircraft hangars
  •  Ship holds and engine rooms
  •  Power stations and transformers
  •  Gas turbine generators
  •  Flammable liquid storage
  •  LNG vapour surpression

Recommended foam concentrate

  •  Fomtec LS EXP
  • Fomtec LS xMax
  • Fomtec LS aMax
(1): The expansion ratio is depending on foam concentrate type. Results achieved in full scale tests. Please consult Fomtec for most suitable hi-ex foam concentrate for your application.

Technical data BELE S-250

Model BELE S-250
Flow rate L/min – 4 bar 235
Expansion ratio 4 bar (1) 500-650:1
Flow rate L/min – 5 bar 258
Expansion ratio 5 bar (1) 550-700:1
Flow rate L/min – 6bar 278
Expansion ratio 6 bar (1) 600-750:1
Inlet connection 76 mm grooved or 2 ½” BSP M
Weight Kg 58

Installation

The Bele S unit generator body, nozzle and pipework are shipped disassembled for packing/transport cost reasons. Foam generator mesh, connecting piping and nozzles need to be assembled before final installation. Bele units can be installed for horizontal or vertical hi-ex foam application. As per figure 1.1, the generator body is equipped with mounting feet to allow mounting to either wall or ceiling. 3 x support brackets (not included) must be properly fixated and able to carry the weight of the foam generator during operation. The foam generator is attached to foam premix pipe system with grooved connection as standard (optional flanged). The foam premix feeding line should be equipped with a strainer mesh size no greater than 2,5 mm.

(1): The expansion ratio is depending on foam concentrate type. Results achieved in full scale tests. Please consult Fomtec for most suitable hi-ex foam concentrate for your application.

Technical data BELE S-400

Model BELE S-400
Flow rate L/min – 4 bar 355
Expansion ratio 4 bar (1) 500-650:1
Flow rate L/min – 5 bar 393
Expansion ratio 5 bar (1) 550-700:1
Flow rate L/min – 6bar 422
Expansion ratio 6 bar (1) 600-750:1
Inlet connection 76 mm grooved or 2 ½” BSP M
Weight Kg 59