The VLV 4-12 Chiller for Battery Energy Storage Systems Meets Demanding Requirements

This compact, off-grid chiller integrates into BESS containers or cabinets.
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Sept. 8, 2025
Pfannenberg
68bf47edcf63c9011aa9ee72 Pfannenberg Vlv 412 Chiller

The VLV 4-12 chiller by Pfannenberg Inc. is engineered for the demanding needs of the battery energy storage system (BESS) market. It’s a compact, off-grid unit that integrates inside BESS containers or cabinets. The direct DC power supply, ranging from 570 to 800 volts, allows for direct connection to the battery system, eliminating the need for power conversion, simplifying system design, and boosting efficiency.

The VLV 4-12 is engineered for all climates and operates reliably in ambient temperatures from -25 to 45 degrees C., making it ideal for BESS installations in extreme cold and hot environments. An integrated internal heater ensures battery longevity by maintaining a stable minimum liquid temperature during winter.

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