COMBINATION CONTROLS

 cg10

Combination controls CG 10

  • Complete with strainer, two solenoid valves and servo-governor for maximum regulation precision.
  • Special low-noise valves.
  • Optional pressure switch at the inlet.
  • Easy-to-service. All adjustment and metering facilities, with the addition of the electrical connections, are accessible from one side.
  • Flow rate adjustment for precise adjustment of the max. flow rate.
  • Environment-friendly thanks to recyclable and resource-friendly design, plastic parts with material identification.
  • EC type-tested and certified design.

Application

For safeguarding and controlling atmospheric burners, forced draught gas burners and induced-draught boilers on heating installations up to 50 kW.

Combination contro ls CG..G, CG..V2 and CG..V3 can also be used on steam boiler installations to TRD 412.

The combination controls are EC type-tested and certified pursuant to the Gas Appliance Directive (90/396/EEC) in conjunction with EN 126.
lfc

Linear flow controls LFC

  • Linear behaviour between adjustment angle and flow rate
  • Large control ratio of 25:1
  • EC type-tested and certified
  • Actuators IC 20 or IC 40 can be mounted without an adapter
  • For gas and air
  • Low leakage rates
  • High control accuracy

Application

The linear flow control LFC is designed to adjust volumes of gas and cold air on various appliances. It is designed for control ratios up to 1:25, and with the mounted actuator IC 20 or IC 40 it is suitable for regulating flow rates for modulating or stage-controlled combustion processes.
 

 

16 a

Control valves RV, control valves with solenoid valves

  • Large control ratio (100:1).
  • Largely linear control behaviour.
  • High control accuracy.
  • Can be controlled by
    – three-point step signal (standard)
    – continuous signal (RV..E).
  • Simple Automatic/Manual mode switchover for easy start-up.
  • External-read-off position indication.
  • Four infinitely adjustable switching cams as standard, precisely adjustable.
  • Compact design.
  • Position feedback signal.
  • EC type-tested and certified.

Application

Control valve RV / RVS is used for control the flow rate in modulating-controlled combustion processes requiring a large control ratio. It is suitable for use in an electronic or mechanical air/gas ratio control system.

Fields of application include thermal incineration, the ceramics industry or also O2 control on gas engines in combined heating and power stations.

The valve adjusts the burner capacity precisely. It is controlled by a three-point step controller or, in the case of the RV..E, by a continuous signal (e.g. 4 to 20 mA). This version features an electronic positioning control which ensures high control accuracy.

The RVS also integrates a solenoid valve so that the gas is safeguarded and controlled without additional pressure loss.