HEINZMANN Company Group

HEINZMANN Electric Drives
Robust electric motors

REGULATEURS EUROPA
Control & Monitoring

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Control & Actuation

HEINZMANN Automation
Marine Automation

HEINZMANN UK
Gas & Water Turbine Control

HEINZMANN Australia
Steam Turbine Control

CPK Automotive
Emission Control

Giro Engineering
Diesel Engine Components

Optimal control technology for any type of gas engine

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.

Gas Engine Management Catalogue

 

  • LES-GT Gas Valves
  • LES-GT 20
  • LES-GT 25
  • LES-GT 40
  • LES-GT 50
  • LES-GT 65

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.

 

Mechanical AFR Control Uebersicht

LES-GT 20

Technical data

  • Flow diameter: 20 mm
  • Lenght: 80 mm
  • Total height: 77 ... 92 mm
  • Weight: 0.4 kg

LES-GT 25

Technical data

  • Flow diameter: 25 mm
  • Length: 95 mm
  • Total height: 91 ... 111 mm
  • Weight: 0.7 kg

LES-GT 40

Technical data

  • Flow diameter: 40 mm
  • Length: 120 mm
  • Total height: 136 ... 171 mm
  • Weight: 1.4 kg

LES-GT 50

Technical data

  • Flow diameter: 50 mm
  • Length: 130 mm
  • Total height: 165 ... 210 mm
  • Weight: 2.7 kg

LES-GT 65

Technical data

  • Flow diameter: 65 mm
  • Length: 200 mm
  • Total height: 250 ... 290 mm
  • Weight: 6.4 kg

More information

Technical Drawing

Data Sheet

  • E-LES Gas Valves
  • E-LES 30 LC
  • E-LES 50 LC
  • E-LES 80 LC
  • E-LES 30 SMC
  • E-LES 50 SMC
  • E-LES 80 SMC

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.

Electronically AFR Control Uebersicht2

E-LES 30 LC

Technical data

  • Flow diameter: 32 mm
  • Length: 73 mm
  • Total height: 180 mm
  • Weight: approx. 2 kg
  • Admissible pressure of fuel supply: max. 0.1 bar

E-LES 50 LC

Technical data

  • Flow diameter: 75 mm
  • Length: 166,7 mm
  • Total height: 221 mm
  • Weight: approx. 5 kg
  • Admissible pressure of fuel supply: max. 0.1 bar

E-LES 80 LC

Technical data

  • Flow diameter: 82 mm
  • Length: 252 mm
  • Total height: 336 mm
  • Weight: approx. 12 kg
  • Admissible pressure of fuel supply: max. 0.1 bar

E-LES 30 SMC

Technical data

  • Application rang: 5 ... 130 kW
  • Positioning time for 0 - 100 %: 2.5 s
  • Admissible pressure of fuel supply: max. 0.1 bar
  • Weight: approx. 2 kg

E-LES 50 SMC

Technical data

  • Application range: 5 ... 130 kW
  • Positioning time for 0 - 100 %: 4 s
  • Admissible pressure of fuel supply: max. 0.1 bar
  • Weight: approx. 5 kg

E-LES 80 SMC

Technical data

  • Application range: 450 ... 1,750 kW
  • Positioning time for 0 - 100 %: 8 s
  • Admissible pressure of fuel supply: max. 0.1 bar
  • Weight: approx. 12 kg

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