LowDensityLine for Low Density Level Measurement from 0.27 g/cm³
The LowDensityLine is specially adapted to the particular conditions of petrochemicals and refrigerant industry. No one measures lower liquid densities – in a pressure range up to 50 bar, liquids with densities from 0.27 g/cm³ can be reliably displayed.
Explore the unique possibilities of the LowDensityLine for your applications with lowest liquid densities.
LowDensityLine

Extended Float Chamber for Extreme Light Media
The proven float with horizontal rod magnet and extended diameter of the float chamber serves as basis. The innovative spherical float technology in titanium enables highest pressure resistance without internal pressure increase – ideal for these refrigerant level indicators.
The PED-compliant design ensures European conformity while specializing in lowest liquid densities. Simple pressure-temperature diagrams allow optimal determination of the basic type including connections.
Magnetic switches and transmitters for continuous signal transmission extend functionality for demanding control system integration. The complete range of 2- and 3-wire devices is available in normal or Ex variants (ATEX/IECEx).
LowDensityLine 50: | Nominal pressure PN: | ≤ 50 bar |
Temperature range: | -196 … + 400°C | |
Fluid density: | ≥ 0.27 g/cm3 | |
Viscosity: | ≤ 600 cSt |

-A with process connections bottom and top and service connection bottom

-B with process connections bottom and top and service connections bottom and top

-K with side process connections and service connection bottom

-O with side process connections and service connections bottom and top
This product is frequently used in the following areas:
Magnet switches
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Accessories, Magnetic Switches, Level Transmitters, Floats, Indicator Rails / Measuring Scales, Top of Tank Line - SS
Installation-, Operation- and Maintenance Manual
Magnet switches
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Accessories, Magnetic Switches, Level Transmitters, Floats, Indicator Rails / Measuring Scales, Top of Tank Line - SS
Installation-, Operation- and Maintenance Manualpdf|4.04 MBSpecific Allocation
- Magnetic Switch Changeover (SPDT)
- Magnetic Switch On/Off (SPST)
- 31130-NW-NAM/20
- 31130-NW-NAM/10
- 31130-NW-NAM/5
- 31130-NW-NAM/3
- 31130-NA-NAM/20
- 31130-NA-NAM/10
- 31130-NA-NAM/5
- 31130-NA-NAM/3
- 31130-NS/20
- 31130-NS/10
- 31130-NS/5
- 31130-NS/3
- 31130-NM/20
- 31130-NM/10
- 31130-NM/5
- 31130-NM/3
- 31130-ND/20
- 31130-ND/10
- 31130-ND/5
- 31130-ND/3
- 31130-NI/20
- 31130-NI/10
- 31130-NI/5
- 31130-NI/3
- 31130-NB
- 31130-NT
- 31130-NK
- 31130-NP
- 31130-NA/20
- 31130-NA/10
- 31130-NA/5
- 31130-NA/3
- 31130-NW/20
- 31130-NW/10
- 31130-NW/5
- 31130-NW/3
- 31130-NN/20
- 31130-NN/10
- 31130-NN/5
- 37589
- 31130-NN/3
- 37557/20
- 37557/10
- 37557/5
- 37557/3
- 31160-NS/20
- 31160-NS/10
- 31160-NS/5
- 31160-NS/3
- 31160-NM/20
- 31160-NM/10
- 31160-NM/5
- 31160-NM/3
- 31160-ND/20
- 31160-ND/10
- 31160-ND/5
- 31160-ND/3
- 31160-NI/20
- 31160-NI/10
- 31160-NI/5
- 31160-NI/3
- 31160-NB
- 31160-NT
- 31160-NK
- 31160-NP
- 31160-NA/20
- 31160-NA/10
- 31160-NA/5
- 31160-NA/3
- 31160-NW/20
- 31160-NW/10
- 31160-NW/5
- 31160-NW/3
- 31160-NN/20
- 31160-NN/10
- 31160-NN/5
- 31160-NN/3

Transmitter
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Accessories, Magnetic Switches, Level Transmitters, Floats, Indicator Rails / Measuring Scales, Top of Tank Line - SS
Installation-, Operation- and Maintenance Manual
Transmitter
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Accessories, Magnetic Switches, Level Transmitters, Floats, Indicator Rails / Measuring Scales, Top of Tank Line - SS
Installation-, Operation- and Maintenance Manualpdf|2.06 MBSpecific Allocation
- Transmitter
- 29710-R-ND-10
- 29710-R-ND-05
- 29710-R-W-010-10
- 29710-R-W-010-05
- 29710-R-NI-10
- 29710-R-NI-05
- 29710-R-010-10
- 29710-R-010-05
- 32608-ND-10
- 32608-ND-05
- 29710-ND-10
- 29710-ND-05
- 32607-NI-05
- 32607-NI-10
- 29710-NI-10
- 29710-NI-05
- 31967-KST-010-10
- 31967-KST-010-05
- 31967-K-010-10
- 31967-K-010-05
- 31967-W-010-10
- 31967-W-010-05
- 31967-010-10
- 31967-010-05
- 29710-W-010-10
- 29710-W-010-05
- 29710-010-10
- 29710-010-05

Converter SC-10
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Accessories, Magnetic Switches, Level Transmitters, Floats, Indicator Rails / Measuring Scales, Top of Tank Line - SS
Installation-, Operation- and Maintenance Manual
Converter SC-10
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Accessories, Magnetic Switches, Level Transmitters, Floats, Indicator Rails / Measuring Scales, Top of Tank Line - SS
Installation-, Operation- and Maintenance Manualpdf|557.93 KBSpecific Allocation
- Signal Converter
- 45755 (SC-10)

Visual level indicators
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Top of Tank Line - SS
Installation-, Operation- and Maintenance Manual
Visual level indicators
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Top of Tank Line - SS
Installation-, Operation- and Maintenance Manualpdf|3.08 MBSpecific Allocation
- Special VLI
- 34000E-A
- 34000E-K
- EconomyLine 6 - low viscos
- 23614E-K
- 23614E-A
- EconomyLine 6 - high viscos
- 23614-O
- 23614-K
- 23614-B
- 23614-A
- StandardLine 6
- 34300-O
- 34300-K
- 34300-B
- 34300-A
- StandardLine 28
- 32755-O
- 32755-K
- 32755-B
- 32755-A
- StandardLine 50
- 34000-O
- 34000-K
- 34000-B
- 34000-A
- SmartLine 50
- 34110-O
- 34110-K
- SmartLine 50 with integrated valves
- 36800-O
- 36800-K
- 36800-B
- 36800-A
- HighPressureLine 80
- 26411-O
- 26411-K
- 26411-B
- 26411-A
- HighPressureLine 100
- 25683-O
- 25683-K
- 25683-B
- 25683-A
- HighPressureLine 150
- 32806-O
- 32806-K
- 32806-B
- 32806-A
- HighPressureLine 200
- 39020-O
- 39020-K
- 39020-B
- 39020-A
- PetroLine 20
- 39021-O
- 39021-K
- 39021-B
- 39021-A
- PetroLine 21 - low density
- 39050-O
- 39050-K
- 39050-B
- 39050-A
- PetroLine 50
- 39051-O
- 39051-K
- 39051-B
- 39051-A
- PetroLine 51 - low density
- 39068-O
- 39068-K
- 39068-B
- 39068-A
- PetroLine 68
- 39100-O
- 39100-K
- 39100-B
- 39100-A
- PetroLine 100
- 39150-O
- 39150-K
- 39150-B
- 39150-A
- PetroLine 150
- 40350-O
- 40350-K
- 40350-B
- 40350-A
- LowDensityLine 50
- 25670
- 25475
- 25470
- PlasticLine - PVDF
- 25672
- 25478
- 25480
- PlasticLine - PP
- 25674
- 25479
- 25490
- PlasticLine - PVC
- Top of Tank Line - Special
- 23013/06
- 25270/06
- 25270/28
- 25270/50
- Top of Tank Line - SS
- 25274-PVC
- 25272-PP
- 25271-PVDF
- Top of Tank Line - Plastic

Floats
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Accessories, Magnetic Switches, Level Transmitters, Floats, Indicator Rails / Measuring Scales, Top of Tank Line - SS
Datasheet
Floats
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Accessories, Magnetic Switches, Level Transmitters, Floats, Indicator Rails / Measuring Scales, Top of Tank Line - SS
Datasheetpdf|3.44 MBSpecific Allocation
- 26792/05
- 26829
- 29689
- 32567/05
- 33115/05
- 33115/30
- 33115/40
- 33115/60
- 33157
- 33278/05
- 33278/30
- 33278/40
- 33278/60
- 33279/05
- 33279/30
- 33279/40
- 33279/60
- 34333/05
- 34333/15
- 34333/30
- 34333/40
- 34333/60
- 35615/05
- 35615/15
- 35615/30
- 35615/40
- 35615/60
- 36223/20
- 38662/20
- 26620
- 25262
- 28831
- 34748
- 34749
- 34750
- 38578/0.6
- 38578/0.8
- 38578/0.9
- 39525/0.8
- 39525/1.0
- 39525/1.2
- 41170 (Smart-Line-PVDF)
- 41392 (Smart-Line-PVC)
- 41622/1.0
- 34466-2
- 34466-3
- 34466-4
- 34466-5
- 34466-6
- 34473-3
- 34473-2
- 34473-4
- 34473-5
- 34473-6
- 34501-2
- 34501-3
- 34501-4
- 34501-5
- 34501-6
- 36815-2
- 36815-3
- 36815-4
- 36815-5
- 36815-6
- 37943-2
- 37943-3
- 37943-4
- 37943-5
- 37943-6
- 38218-2
- 38218-3
- 38218-4
- 38218-5
- 38218-6
- 38243-2
- 38243-3
- 38243-4
- 38243-5
- 38243-6
- 38561-2
- 38561-3
- 38561-4
- 38561-5
- 38561-6
- 39994-2
- 39994-3
- 39994-4
- 39994-5
- 39994-6
- 40998-2
- 40998-3
- 40998-4
- 40998-5
- 40998-6
- 40672-2
- 40672-3
- 40672-4
- 40672-5
- 40672-6
- 40999-2
- 40999-3
- 40999-4
- 40999-5
- 40999-6
- 41000-2
- 41000-3
- 41000-4
- 41000-5
- 41000-6
- 41006-2
- 41006-3
- 41006-4
- 41006-5
- 41006-6
- 41007-2
- 41007-3
- 41007-4
- 41007-5
- 41007-6
- Cylindrical Floats
- Cylindrical Floats - Plastic
- Ball Floats
- Ball Floats with reflection plate
- Special Floats
- 40180
- 42172

Floats
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Accessories, Magnetic Switches, Level Transmitters, Floats, Indicator Rails / Measuring Scales, Top of Tank Line - SS
Datasheet
Floats
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Accessories, Magnetic Switches, Level Transmitters, Floats, Indicator Rails / Measuring Scales, Top of Tank Line - SS
Datasheetpdf|3.50 MBSpecific Allocation
- 26792/05
- 26829
- 29689
- 32567/05
- 33115/05
- 33115/30
- 33115/40
- 33115/60
- 33157
- 33278/05
- 33278/30
- 33278/40
- 33278/60
- 33279/05
- 33279/30
- 33279/40
- 33279/60
- 34333/05
- 34333/15
- 34333/30
- 34333/40
- 34333/60
- 35615/05
- 35615/15
- 35615/30
- 35615/40
- 35615/60
- 36223/20
- 38662/20
- 25262
- 26620
- 28831
- 34748
- 34749
- 34750
- 38578/0.6
- 38578/0.8
- 39525/0.8
- 38578/0.9
- 39525/1.0
- 39525/1.2
- 41170 (Smart-Line-PVDF)
- 41392 (Smart-Line-PVC)
- 41622/1.0
- 34466-2
- 34466-3
- 34466-4
- 34466-5
- 34466-6
- 34473-2
- 34473-3
- 34473-4
- 34473-5
- 34473-6
- 34501-3
- 34501-2
- 34501-4
- 34501-5
- 34501-6
- 36815-2
- 36815-3
- 36815-4
- 36815-5
- 36815-6
- 37943-2
- 37943-3
- 37943-4
- 37943-6
- 37943-5
- 38218-2
- 38218-3
- 38218-4
- 38218-5
- 38218-6
- 38243-2
- 38243-3
- 38243-4
- 38243-5
- 38243-6
- 38561-2
- 38561-3
- 38561-4
- 38561-5
- 38561-6
- 39994-2
- 39994-3
- 39994-4
- 39994-5
- 39994-6
- 40998-2
- 40998-3
- 40998-4
- 40998-5
- 40998-6
- 40672-2
- 40672-3
- 40672-4
- 40672-5
- 40672-6
- 40999-2
- 40999-3
- 40999-4
- 40999-5
- 40999-6
- 41000-2
- 41000-3
- 41000-4
- 41000-5
- 41000-6
- 41006-2
- 41006-3
- 41006-4
- 41006-5
- 41006-6
- 41007-2
- 41007-3
- 41007-4
- 41007-5
- 41007-6
- Cylindrical Floats
- Cylindrical Floats - Plastic
- Ball Floats
- Ball Floats with reflection plate
- Special Floats
- 40180
- 42172

Indication Rails
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Accessories, Magnetic Switches, Level Transmitters, Floats, Indicator Rails / Measuring Scales, Top of Tank Line - SS
Datasheet
Indication Rails
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Accessories, Magnetic Switches, Level Transmitters, Floats, Indicator Rails / Measuring Scales, Top of Tank Line - SS
Datasheetpdf|1.76 MBSpecific Allocation
- 34560E
- 34837
- 37100E
- 38602E
- 41008E
- 41313E
- 42403E
- 42404E

Indication Rails
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Accessories, Magnetic Switches, Level Transmitters, Floats, Indicator Rails / Measuring Scales, Top of Tank Line - SS
Datasheet
Indication Rails
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Accessories, Magnetic Switches, Level Transmitters, Floats, Indicator Rails / Measuring Scales, Top of Tank Line - SS
Datasheetpdf|1.72 MBSpecific Allocation
- 34560E
- 34837
- 37100E
- 38602E
- 41008E
- 41313E
- 42403E
- 42404E

Insulations Heating Systems
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Accessories, Magnetic Switches, Level Transmitters, Floats, Indicator Rails / Measuring Scales, Top of Tank Line - SS
Datasheet
Insulations Heating Systems
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Accessories, Magnetic Switches, Level Transmitters, Floats, Indicator Rails / Measuring Scales, Top of Tank Line - SS
Datasheetpdf|2.49 MBSpecific Allocation
- 20060307/10
- 20060307/20
- 20060307/30
- 20060307/35
- 20060307/40
- 20060307/50
- 20060307/55
- 20060307/60
- 20060307/65
- 20060307/70
- 20060307/75
- 20060307/80
- 20060307/85
- 20060307/95

Insulations Heating Systems
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Accessories, Magnetic Switches, Level Transmitters, Floats, Indicator Rails / Measuring Scales, Top of Tank Line - SS
Datasheet
Insulations Heating Systems
EconomyLine, SmartLine, StandardLine, HighPressureLine, PetroLine, LowDensityLine, PlasticLine, Top of Tank - Visual Level Indicators (ToT VLI), Top of Tank Line - Plastic, Accessories, Magnetic Switches, Level Transmitters, Floats, Indicator Rails / Measuring Scales, Top of Tank Line - SS
Datasheetpdf|2.30 MBSpecific Allocation
- 20060307/10
- 20060307/30
- 20060307/20
- 20060307/35
- 20060307/50
- 20060307/40
- 20060307/55
- 20060307/60
- 20060307/65
- 20060307/70
- 20060307/75
- 20060307/80
- 20060307/85
- 20060307/95

Locations
Locations
Your personal contact
John M. Andrea
International Sales Manager, Senior Engineer Level Instruments
Send an email+41 43 833 43 27German, English, French
