The was originally optimized for R22 (now phased out globally) and R404A / R507 . However, with the global shift toward lower GWP refrigerants, modern applications often use this compressor with R448A (N40), R449A , or R134a (at higher temperatures).
Oil failure is the #1 killer of semi-hermetic compressors. The K373HB uses a driven directly from the crankshaft. bitzer k373hb
To get 15+ years from a Bitzer K373HB:
: High-grade copper-nickel 90/10 (CuNi10Fe1Mn) , which provides excellent resistance to seawater corrosion. The was originally optimized for R22 (now phased
This unit is typically used for . It is not a small duty compressor; this is a heavy lifter for walk-in freezers, refrigerated display cases, and industrial chillers. The K373HB uses a driven directly from the crankshaft
: 33 bar on the refrigerant side and 10 bar on the coolant side. Max Operating Temperature : 120°C. Nominal Flow Rate : 7.70 m³/h. Pressure Drop : 24 kPa (for 2-pass configuration). Dimensions & Weight : Total Width : 1140 mm. Total Height : 322 mm. Jacket Tube Diameter : 159 mm. Net Weight : ~37–38 kg. Material & Design Features