The “FS” system is a multi-application twin walled product designed to convey gases, particles, fumes, smoke and products of combustion from a wide range of engineering combustion and process equipment.
It is a lightweight engineered system designed and certified to H1 pressure class.
FS is suitable for a continuous flue gas operating temperature of 760°C and for 1000°C intermittent use, and can be used internally and externally. The system consists of straight lengths and a variety of fittings, which in combination with its pressure resistance features, enables it to be used in a multiplicity of configurations.
The FS system is designed to be used as an alternative to conventional heavy gauge welded steel and lightweight ducting. By comparison to these other materials, it is more easily, quickly and economically installed.
FS is available in a variety of formats dependant on both the type of equipment it is to serve, and the temperature of the gases it carries.
In addition to the standard 25mm insulated product, a mineral fibre insulated annulus can be provided, 50mm, 75mm and l00mm thick. Note that some of the dimensions of the wider annulus options will be different from the standard dimensions quoted in this catalogue. Dimensional differences as well as details of the performance criteria for these variations is available on request.
Assembly
The liner has flanges at each end which when butted are secured and sealed with a Vee Band and sealant. Closure Bands are used to close the annulus at the Vee Band joint.
Expansion Allowance
As the method of assembly for FS provides a continuous inner wall, expansion of the vent in its entirety must be allowed for.
Joint Sealants
Low temperature sealant for applications up to 300°C flue gas temperature. High temperature exhaust pasts for applications up to 1000°C gas temperature.
Supports
The FS system must be supported using only KelBie components, in conjunction with suitable steel work as necessary. Care is needed to ensure that supports capable of accommodating expansion (where appropriate) are correctly applied.
Twin wall flanged system
The twin wall flanged system complied with the requirements of Annex NA.5 of BS EN 1856-1:2009. The fire resistance test results confirmed a 4 hour fire rating.
Single wall flanged system
The single wall flanged system complied with the requirements of Annex NA.5 of BS EN 1856-1:2009. The fire resistance test results confirmed a 4 hour fire rating.
Contact us to discuss the KelBie Flanged System (FS).