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Gas Valves
The HEINZMANN gas valves for controlling the mixture in gas engines can handle various different gas qualities. We supply gas valves for both mechanical and digital control. The electronically controlled version can regulate the required gas volume particularly precisely and is CAN-compatible for all common protocols. This makes it the ideal choice for integration into an existing AFR control system. By contrast, the mechanical variant is a good solution for all engine sizes between 25 kW and 3 MW where there is no need for precise emissions control.
Mechanical Gas Valves
LES-GTs are mechanical gas valves for air-fuel-ratio control (AFR) of gas engines. They are available with several cross sections and applied together with Venturi based gas mixers. Due to their design, these valves are totally maintenance-free and long lasting. Main applications are gas engines, working at one single operating point. Gas flow optimum is adjusted by positioning a specially shaped piston inside the LES-GT gas valves.
Electronically Controlled Gas Valves
The electronically controlled E-LES gas valves are a great solution for gas engines. Driven by a stepper motor, they are available both with (E-LES LC) and without (E-LES SMC) lambda control. They are located in the gas line downstream of the zero-pressure governor, and are connected to the inlet of the gas mixer. They can be used to set the required gas volume very precisely in every operating state and correct it as required.
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