Refcomp SP4LN1200 SP4LN120E Reciprocating Semi Hermetic Compressor for Water Chiller

• Solenoid-Controlled Energy Regulation (100% / 50%) Engineered with a solenoid-driven capacity control system, this reciprocating semi hermetic compressor offers 100% and 50% capacity steps. By modulating compressor displacement to match fluctuating thermal loads, the system eliminates unnecessary motor cycling, stabilizes suction pressure, and optimizes power consumption during part-load operating periods.
• High-Precision Floating Bearing System Utilizing advanced floating sleeve journal bearings combined with specialized thrust washers, this reciprocating semi hermetic compressor minimizes axial and radial shaft wear. The optimized lubrication geometry distributes oil film pressure dynamically, delivering low-noise operation and extending mechanical design life up to 60,000-80,000 service hours.
• 360° Rotatable Shut-Off Valves Equipped with high- and low-pressure rotatable shut-off valves, the compressor allows full 360° piping orientation during system installation. This flexible flange arrangement simplifies connection in compact mechanical rooms, reduces installation time, and prevents physical stress on connecting suction and discharge piping.
• Integrated Internal Safety Relief Valve To protect against operational overpressure spikes, an internal differential safety valve connects the high-pressure discharge zone directly to the low-pressure suction casing. The valve opens automatically to balance internal pressure during severe system anomalies, safeguarding the compressor body from structural hazards.

• Commercial Walk-In Freezers & Cold Rooms - Ideal for supermarket cold rooms, commercial frozen storage facilities, and food holding freezers.
• Blast Freezing & Fast Chilling Equipment - Suitable for rapid food processing, blast freezing tunnels, and fast-chilling production lines.
• Cold Storage Distribution Logistics - Designed for central refrigerated distribution hubs and cold chain logistic warehouses.
• Industrial Low-Temperature Process Chilling - Well-suited for pharmaceutical temperature control, chemical processing, and low-temperature fluid chilling.

Coolstart is a modern, large-scale refrigeration enterprise with over 20 years of industry experience. We specialize in supplying semi-hermetic compressors, scroll compressors, screw compressors, reciprocating compressors, rotary compressors, cold storage equipment, quick-freezing systems, and ice-making machinery. Supporting full-category OEM and ODM customization, Coolstart delivers reliable refrigeration products to clients across the United States, Russia, the United Kingdom, the United Arab Emirates, Saudi Arabia, and other global markets through technical innovation and dedicated service.

Whether building new multi-compressor refrigeration racks or upgrading commercial cold rooms, Coolstart provides factory-direct model selection, technical matching, and competitive pricing within 8 hours.

Please share the following parameters with your inquiry:

• Target Model & Quantity
• Refrigerant Type
• Power Grid Specifications
• Operating Conditions
• Specific System or Rack Integration Requirements