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Linear Flow Control LFC - DISCONTINUED
- Replaced by Linear Flow Control model VFC
- Linear behavior between adjustment angle and flow rate
- Large control ratio of 25:1
- 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
Description
The 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.
Documentation
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FAQ: Kromschröder Product Labels and Type Codes (Blog Post) |
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Linear Flow Control LFC Brochure |
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Linear Flow Control LFC Operating Instructions |
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Linear Flow Control LFC Technical Information |
Ordering Information
| Model and Description | Price | Cart |
| LFC 108ML05 Connection: 3/8, 1/2, 3/4, 1; kVS m3/h: 2.4; Moduline?: Yes |
Discontinued Consider the Linear Flow Control VFC as a replacment |
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| LFC 115ML05 Connection: 3/8, 1/2, 3/4, 1; kVS m3/h: 6.7; Moduline?: Yes |
Discontinued Consider the Linear Flow Control VFC as a replacment |
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| LFC 120ML05 Connection: 3/8, 1/2, 3/4, 1; kVS m3/h: 14; Moduline?: Yes |
Discontinued Consider the Linear Flow Control VFC as a replacment |
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| LFC 232ML05 Connection: 1, 1½; kVS m3/h: 27; Moduline?: Yes |
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For assembly options Contact Combustion 911
Accessories
| Model and Description | Price | Cart |
| LFC ACC 01 Fastening set IC-BVG/BVA/BVH/LFC /E |
For assembly options Contact Combustion 911
Applications
Click on images for close-up view.
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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. |
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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. |
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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. |
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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
| 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. |
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