Separate the fluid from the product
In an indirect system, the coolant carries cooling capacity through a separate circuit. The fluid stays inside a closed secondary circuit.
Heat transfer fluids
LM-4B
Food-processing secondary coolant
A water-dilutable coolant described for food-industry secondary refrigeration, with corrosion protection for carbon steel, stainless steel and copper.
GLACIER / PRODUCT SAMPLE
CATALOGUE TEMPERATURE REFERENCE−20°C to +95°C
Formulation
Modified ternary alcohols
A closer look.
- Food-processing circulation
- Concentration-dependent properties
- Carbon steel, stainless steel and copper
- Non-metallic compatibility (manufacturer page): PVC, fluororubber, latex, HDPE, natural rubber, PP, silica gel, PTFE
Model and property references
- 40 wt% freezing point
- −17.5°C
- 50 wt% freezing point
- −25°C
- 50 wt% viscosity at −20°C
- 45.39 cP
- Density at 20°C (50 wt%)
- 1.237 g/cm³, mfr. product page
- Specific heat (50 wt%)
- 2.61 kJ/(kg·K), mfr. product page
- Thermal conductivity (50 wt%)
- 0.29 W/m·K, mfr. product page
- Standard packaging
- Same as LM-4: 25 kg plastic drum; 200 kg iron drum; 1100 kg ton drum; bulk tanker above 10 t
Reference values from the Chaoyang Guangda LM catalogue — typical figures rather than guaranteed limits. Confirm the exact model and concentration on the current model TDS before specifying.
View source: catalogue p.17 (PDF p.21)Before you specify
Confirm application-specific documentation for the food-industry application.
FROM FORMULATION TO APPLICATION
Built around indirect refrigeration.
LM-4B is described for secondary cooling in cold storage, chemical processing and pharmaceutical systems. Its modified ternary-alcohol formulation includes corrosion-control and stabilising additives.
Specify the supplied formulation
The original product information notes that colour can be customised. Formulation and concentration are confirmed by analysis.
REFERENCED MODELS
LM-4B
About these product references
Application notes are adapted from Glacier’s original product information. Unless a table states otherwise, numeric specifications follow the supplied catalogue. For the confirmed specification, obtain the current model-specific TDS and SDS. Links below point to the original source pages, not new technical documents.
Fluid fundamentals
Over-concentration in glycol loops: what the reference data shows
A worked analysis of concentration, freezing point and viscosity in a glycol loop, with the pumping-energy penalty of over-concentrating expressed as a range.
Process cooling
Food-grade and agricultural secondary coolants: what the label does and does not mean
Food-industry duty and food-contact approval are separate questions. See which coolant families suit food and agricultural duty, and what to confirm first.
CONTINUE EXPLORING
Related fluid families.
Heat transfer fluids
LM-1
Low-temperature, alcohol-based coolant
−100°C to ambient
Modified monohydric alcoholExplore
Heat transfer fluids
LM-1L
Low-temperature coolant for mixed-metal systems
Low-temperature — confirm the exact range by model
Modified alcohol formulationExplore
Heat transfer fluids
LM-3 series
Application-specific alcohol coolants
−80°C to ambient
Modified monohydric alcoholExplore