Product Overview & Core Tech
    Lixi semi-hermetic screw compressors deliver high-efficiency cooling via precision rotors and serviceable design. The bolted casing enables on-site maintenance of rotors, slide valves, bearings and shaft seals, minimizing downtime for continuous operations. Variable volume ratio technology ensures optimal efficiency across working conditions, while premium materials and lubrication extend service life.

Key Features

    1. Asymmetric rotor profiles for high volumetric efficiency and low noise

    2. Slide valve capacity control: smooth 100%–25% modulation for energy savings

    3. High-efficiency motor (direct-coupled or belt-driven)

    4. Independent oil separation and filtration for circuit cleanliness

    5. Discharge temperature control and motor protection

    6. Compatible with traditional and low-GWP refrigerants

    7. Robust for high pressure ratios and demanding environments

Applications

    1. Cold storage & food processing

    2. Pharmaceutical temperature‑stable storage

    3. Large-building HVAC & district cooling

    4. Marine & transport refrigeration

    5. Data center & industrial process cooling

    6. Parallel multi‑compressor systems for redundancy

Industry Trends
    The sector shifts toward low-GWP refrigerants, energy efficiency and smart IoT monitoring. Semi‑hermetic screw units are preferred for medium‑to‑large systems due to high capacity and serviceability. Lixi adapts its compressors to eco‑friendly refrigerants while retaining reliability.

Best Practices

    1. Regular oil analysis to protect bearings

    2. Periodic slide valve checks for stable capacity control

    3. Keep superheat/subcooling within factory specs

    4. Monitor discharge pressure/temperature to avoid overheating

    5. Proper piping for reliable oil return

    6. Verify seal/gasket compatibility for low‑GWP retrofits

FAQ
    Why choose semi‑hermetic over fully hermetic?
    Semi‑hermetic designs allow on-site service without full replacement, extending life to 15–25 years and lowering total cost of ownership—critical for cold storage and pharma facilities.

    Are these compressors compatible with low‑GWP refrigerants?
    Yes. Updated seals, gaskets and oils support R448A, R449A, R513A, R454C and A2L refrigerants. Follow manufacturer retrofit guidelines for oil and expansion valve compatibility.

    How does slide valve control work?
    It modulates capacity by bypassing partial suction flow, delivering stable part‑load efficiency, reducing starts/stops and improving temperature control in variable‑load applications.

Learn full specs and models at www.lxcompressor.com