Gaseous fuel is injected at high velocity into the air stream prior to the stainless steel mixing diffuser. The natural gas input volume is controlled via a precision made flange butterfly valve enabling one positioning motor to be used for both fuels. A completely linkageless procedure leads to greater accuracy throughout the range.
Limpsfield Combustion also manufacture Gas Control Trains. These are supplied complete with pilot control train, double block control valves, regulators and isolation valves. Optional equipment includes: gas filters, pressure proving equipment, high pressure shut-off valves, gauges and switches.