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YLG20Z-84
Blait
Blait’s YLG20Z-84 energy-saving screw compressor is a game-changer in industrial and commercial refrigeration, engineered with advanced screw technology and a durable semi-hermetic construction. This high-efficiency industrial refrigeration compressor delivers stable cooling capacity, low noise, and reduced operational costs, making it ideal for cold storage, food processing, medical refrigeration, and industrial cooling systems. Designed for continuous heavy-duty operation, it adapts to varying load conditions while ensuring precise temperature control—empowering businesses with reliable and cost-effective cooling solutions.

The compressor’s advanced YZ57 tooth profile (composed of arcs and higher-order curves) minimizes leakage losses and maximizes area utilization (0.41 & 0.45), reducing power consumption without compromising cooling performance. This energy-saving design cuts electricity usage, delivering long-term operational savings for industrial and commercial users.
Built with industrial-grade materials, the semi-hermetic design enhances durability and simplifies maintenance. Cylinder bore hardening, optimized valve plates, and high-performance bearings ensure resistance to wear, shaft seizure, and exhaust pulses—extending the compressor’s service life even in demanding industrial environments.
Smooth screw rotor operation and structural optimizations reduce noise and vibration, making the compressor suitable for both industrial facilities and commercial spaces like supermarkets. The stable performance under heavy loads ensures consistent cooling without disruptions to surrounding operations.
Supports both medium and low-temperature refrigeration applications, compatible with common environmentally friendly refrigerants (R134a, R404A, R507A). With adjustable capacity for partial load optimization and mobile installation, it integrates seamlessly into new or existing systems, catering to diverse project needs.
Blait is a trusted manufacturer with a dedicated R&D center and partnerships with top universities (China Jiliang University, Xi’an Jiaotong University). Our refrigeration compressors undergo rigorous testing at nationally calibrated performance test stations, adhering to GB/T10079-2018 and GB/T19410-2018 standards. We offer customization (voltage adaptations, installation fittings, OEM services) and responsive support—from remote installation guidance to troubleshooting—ensuring your cooling system operates at peak efficiency.
Blait’s YLG20Z-84 energy-saving screw compressor is a game-changer in industrial and commercial refrigeration, engineered with advanced screw technology and a durable semi-hermetic construction. This high-efficiency industrial refrigeration compressor delivers stable cooling capacity, low noise, and reduced operational costs, making it ideal for cold storage, food processing, medical refrigeration, and industrial cooling systems. Designed for continuous heavy-duty operation, it adapts to varying load conditions while ensuring precise temperature control—empowering businesses with reliable and cost-effective cooling solutions.

The compressor’s advanced YZ57 tooth profile (composed of arcs and higher-order curves) minimizes leakage losses and maximizes area utilization (0.41 & 0.45), reducing power consumption without compromising cooling performance. This energy-saving design cuts electricity usage, delivering long-term operational savings for industrial and commercial users.
Built with industrial-grade materials, the semi-hermetic design enhances durability and simplifies maintenance. Cylinder bore hardening, optimized valve plates, and high-performance bearings ensure resistance to wear, shaft seizure, and exhaust pulses—extending the compressor’s service life even in demanding industrial environments.
Smooth screw rotor operation and structural optimizations reduce noise and vibration, making the compressor suitable for both industrial facilities and commercial spaces like supermarkets. The stable performance under heavy loads ensures consistent cooling without disruptions to surrounding operations.
Supports both medium and low-temperature refrigeration applications, compatible with common environmentally friendly refrigerants (R134a, R404A, R507A). With adjustable capacity for partial load optimization and mobile installation, it integrates seamlessly into new or existing systems, catering to diverse project needs.
Blait is a trusted manufacturer with a dedicated R&D center and partnerships with top universities (China Jiliang University, Xi’an Jiaotong University). Our refrigeration compressors undergo rigorous testing at nationally calibrated performance test stations, adhering to GB/T10079-2018 and GB/T19410-2018 standards. We offer customization (voltage adaptations, installation fittings, OEM services) and responsive support—from remote installation guidance to troubleshooting—ensuring your cooling system operates at peak efficiency.
The YLG20Z-84 operates at 7.5 kW power (380V/50Hz) with a displacement of 0.8-1.2 m³/min (50 Hz: 84 m³/h; 60 Hz: 101 m³/h). It features air-cooled/water-cooled options, a 12-liter lubricant capacity, and a PTC110°C temperature sensor for safety. The INT69 FSY protection module and oil flow monitoring ensure reliable operation under high-pressure conditions (2.0MPa pressure difference resistance).
Specification | Value |
Model | YLG20Z-84 |
Brand | Blait |
Product Type | Energy-saving screw refrigeration compressor |
Power | 7.5 kW (Power range: 4 kW - 355 kW) |
Displacement (50 Hz) | 84 m³/h |
Displacement (60 Hz) | 101 m³/h |
Lubrication Method | Lubricated (12 liters capacity) |
Cooling System | Air-cooled/Water-cooled |
Structure Type | Semi-hermetic |
Installation Type | Mobile |
Compression Stage | Single-stage |
Voltage | 380V/50Hz |
Refrigerant Compatibility | R134a, R404A, R507A |
Temperature Sensor | PTC110°C |
Protection Module | INT69 FSY |
Weight | 166 kg |
Max. Pressure Difference | 2.0MPa |
The YLG20Z-84 operates at 7.5 kW power (380V/50Hz) with a displacement of 0.8-1.2 m³/min (50 Hz: 84 m³/h; 60 Hz: 101 m³/h). It features air-cooled/water-cooled options, a 12-liter lubricant capacity, and a PTC110°C temperature sensor for safety. The INT69 FSY protection module and oil flow monitoring ensure reliable operation under high-pressure conditions (2.0MPa pressure difference resistance).
Specification | Value |
Model | YLG20Z-84 |
Brand | Blait |
Product Type | Energy-saving screw refrigeration compressor |
Power | 7.5 kW (Power range: 4 kW - 355 kW) |
Displacement (50 Hz) | 84 m³/h |
Displacement (60 Hz) | 101 m³/h |
Lubrication Method | Lubricated (12 liters capacity) |
Cooling System | Air-cooled/Water-cooled |
Structure Type | Semi-hermetic |
Installation Type | Mobile |
Compression Stage | Single-stage |
Voltage | 380V/50Hz |
Refrigerant Compatibility | R134a, R404A, R507A |
Temperature Sensor | PTC110°C |
Protection Module | INT69 FSY |
Weight | 166 kg |
Max. Pressure Difference | 2.0MPa |
Maintains stable low temperatures for food, pharmaceuticals, and industrial goods during transportation and storage, ensuring product quality and safety in logistics centers and cold storage warehouses.
Delivers consistent cooling for production lines, preserving the freshness and quality of food and beverages—critical for compliance with industry safety standards.
Serves as the core component of pharmaceutical refrigeration equipment, ensuring drugs are stored and transported within optimal temperature ranges to maintain efficacy.
Provides reliable cooling for high & low-temperature alternating test chambers, simulating extreme conditions for testing electronics, automotive, and aerospace products.
Maintains stable low temperatures for food, pharmaceuticals, and industrial goods during transportation and storage, ensuring product quality and safety in logistics centers and cold storage warehouses.
Delivers consistent cooling for production lines, preserving the freshness and quality of food and beverages—critical for compliance with industry safety standards.
Serves as the core component of pharmaceutical refrigeration equipment, ensuring drugs are stored and transported within optimal temperature ranges to maintain efficacy.
Provides reliable cooling for high & low-temperature alternating test chambers, simulating extreme conditions for testing electronics, automotive, and aerospace products.
The semi-hermetic design simplifies maintenance, reducing downtime. Routine checks (airtightness, oil pressure, refrigerant levels) are recommended every 12 months for standard use; harsh industrial conditions may require more frequent inspections. Blait provides detailed technical manuals and wiring diagrams for easy servicing.
The YLG20Z-84 includes a 12-month warranty for the compressor and replacement for defective accessories. Blait’s technical support team offers remote installation guidance and troubleshooting, with extended warranty options available for customized projects.
The semi-hermetic design simplifies maintenance, reducing downtime. Routine checks (airtightness, oil pressure, refrigerant levels) are recommended every 12 months for standard use; harsh industrial conditions may require more frequent inspections. Blait provides detailed technical manuals and wiring diagrams for easy servicing.
The YLG20Z-84 includes a 12-month warranty for the compressor and replacement for defective accessories. Blait’s technical support team offers remote installation guidance and troubleshooting, with extended warranty options available for customized projects.
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