Always one step ahead! With this claim Bock develops for almost 90 years innovative compressor solutions for refrigeration and air-conditioning technology that set standards. Current example: The new range of semi-hermetic LG compressors - specially designed for use with low-GWP HFO refrigerants.
With the new LG range (LG = Low-GWP) Bock now offers a compressor portfolio with suitable compressor technology for all synthetic refrigerants. This includes the common HFC fluids as well as the new HFO low-GWP fluids with a GWP value <150, enabling planners and operators to create individually configurable, economical system solutions for sustainable refrigerants that meet the requirements for the global phase down of F-Gases in a safe and sustainable way (F-Gas Regulation, Kigali Amendment etc.).
Long-term tests show: HFO refrigerants need special compressor technology
The development of pioneering Bock products such as the new LG compressor range is the result of continuous research including internal and external long-term tests in various applications. Here it became apparent that conventional compressors are not suitable for safe and reliable operation with HFO refrigerants. In particular, the driving gear and seals usually lost their functional reliability in the long run due to the higher requirements of these refrigerants. Once again, the decades of experience of the Bock experts were confirmed: Different refrigerants require compressors with special technical design - for maximum robustness, reliability and durability over the entire life cycle of a system.
HFO specialists thanks to optimized Bock driving gear design
HFO refrigerants such as R455A or R1234ze place significantly higher demands on the compressors than standard HFC refrigerants such as R404A and R134a - especially with regard to the driving gear, keyword emergency running properties. The reason: HFO refrigerants have a much higher solubility in oil, which leads to a sharp reduction in oil viscosity and thus increases the susceptibility to compressor damage. For this reason, Bock engineers - based on their many years of experience in dealing with the technically demanding refrigerants CO2 and hydrocarbons - have developed a special driving gear design for the new LG range that makes the compressors "less sensitive" to falling oil viscosity.
New series with complete product range
Within the semi-hermetic Bock standard HG compressor range, the new LG compressors are an independent series with a complete product range: seven model sizes with 25 capacity stages exceed all features and advantages of the standard series, which Bock customers worldwide appreciate.