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Specials

Linear Flow Control LFC

Linear Flow Control LFCThe linear flow control LFC adjusts volumes of gas and cold air on various systems. It controls 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.

Features

  • 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
  • Compatible with MODULINE Series
Documentation for Linear Flow Control LFC

Documentation

Manufacturer's Product Brochure
Manufacturer's Operating Instructions
Manufacturer's Technical Sheet
 
Ordering information for Linear Flow Control LFC

Ordering Information

Model Connection kVS m3/h Moduline? Price
(US List)		 Order Now
LFC 108ML05 3/8, 1/2, 3/4, 1 2.4 Yes $427 Buy the LFC Linear Flow Control
LFC 115ML05 3/8, 1/2, 3/4, 1 6.7 Yes $427 Buy the LFC Linear Flow Control
LFC 120ML05 3/8, 1/2, 3/4, 1 14 Yes $427 Buy the LFC Linear Flow Control
LFC 232ML05 1, 1½ 27 Yes $570 Buy the LFC Linear Flow Control
For assembly options Contact Combustion 911

Accessories

Model Description Price
(US List)		 Order Now
LFC ACC 01 Fastening set IC-BVG/BVA/BVH/LFC /E $9 Buy the LFC Linear Flow Control Accessory
For assembly options Contact Combustion 911
 
Applications for Linear Flow Control LFC

Applications

Click on images for close-up view.

Application for Linear Flow Contrl LFC LFC, lambda control

If the burner is to be operated with different lambda values for process reasons, the linear flow control LFC can be used to correct the lambda value.
Application for Linear Flow Contrl LFC LFC, adjusting the burner output

In pneumatic systems the linear flow control with mounted actuator IC 20..E determines the air volume for the required burner output. The butterfly valve BVA/BVG with manual adjustment is used to adjust the high-fire rate.
Application for Linear Flow Contrl LFC Zone control

After initiating the burner control unit, the gas solenoid valve and the linear flow control LFC open. The burner is ignited by the burner control unit BCU. The gas flow rate can be adjusted continuously using the linear flow control with actuator IC 20. The air flow rate remains constant.
Application for Linear Flow Contrl LFC Excess air burner

After initiating the burner control unit, the linear flow control LFC moves to the ignition position. The burner is ignited by the burner control unit BCU. The gas flow rate can be adjusted continuously using the linear flow control with actuator IC 20. The air flow rate remains constant..
 
Specifications for Linear Flow Control LFC

Specifications

General Specifications
Gas Type: natural gas, town gas, LPG (gaseous) and air.
Control ratio: 25:1
Leakage rate: < 2% of kVS value
Max. inlet pressure pe: 500 mbar
Running times: 7.5 s, 15 s, 30 s, 60 s
Connection flanges: Rp internal thread pursuant to ISO 7-1
Housing material: aluminium
Control cylinder: POM
Ambient temperature: -20 to +60°C
Installation position: any
Certifications: The linear flow control LFC is EC type-tested and certified pursuant to– Gas Appliances Directive (90/396/EEC) on the basis of EN 13611/EN 161.