The SKP50... controls the differential pressure in the gas supply line in function of the differential pressure in the supply air duct.
The air / gas volume ratio thus remains constant regardless of air volume changes.
The SKP50... also provides the functions of a safety shutoff valve to EN 161 when used in connection with Landis & Staefa gas valves type VG...
Control of the air / gas volume ratio on multi-stage or modulating gas burners with a central or decentral air supply.
Major fields of use:
In burner plants with integrated heat recovery systems
On burners with an adjustable air / gas mixing facility in the burner head
In plants where, in the case of load changes, the pressure conditions in the burner and in the combustion chamber
do not change in a linear fashion
In plants with negative pressures on the gas or air side
With the SKP50... - in contrast to conventional compound control - air volume variations caused by
mains voltage fluctuations
dirty fan wheels
changes in the combustion chamber pressure
associated heat recovery systems
have no impact on the quality of the combustion process.
When using the SKP50..., a separate gas pressure governor is not required. Since the integrated gas pressure controller does not cause any additional pressure losses, a smaller valve size than usual can be chosen on most applications. The usual measures required for ensuring the minimum air volume must also be taken when using the SKP50....