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Blait stands as the foremost innovator in low-temperature refrigeration technology. As a pioneer in semi-hermetic screw compressor manufacturing, we deliver an extensive range of industrial-grade cooling solutions engineered for extreme environments. Our cutting-edge compressors integrate patented thermal management systems, ensuring optimal performance at temperatures down to -60°C. Discover how our precision-engineered equipment can enhance your cryogenic processes – contact our engineering team for customized proposals today.
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YLG90Z-315~YLG180G-535
Blait
Blait specializes in industrial refrigeration solutions as a trusted manufacturer of semi-hermetic screw compressors. The YLG60Z—YLG90G series delivers precise cooling performance across extreme temperature conditions, tailored for commercial and industrial applications.
Key Specifications
This series operates efficiently in environments ranging from -40°C to 50°C, with optimized power consumption. Its semi-hermetic design ensures durability and minimal maintenance.
Explore technical details or request a customized quote by contacting Blait’s engineering team today.
The YLG series compressors deliver optimized cooling performance across multiple refrigerants (R22, R404A/R507A) under varied operating conditions. Designed for low-temperature applications, these units support both economizer (liquid re-cooling) and non-economizer modes, with adjustable condensing temperatures (30°C, 40°C, 50°C) and evaporating temperatures ranging from -45°C to 10°C.
Adaptability: Compatible with multiple refrigerants and operational modes.
Efficiency: Economizer mode enhances thermal efficiency in low-temperature settings.
Scalability: Performance scales predictably with condensing and evaporating temperature changes.
Robustness: Maintains stable power consumption across wide operating ranges.
The YLG60Z—YLG90G series compressors deliver optimized performance for industrial refrigeration systems through advanced engineering and modular design. Key technical specifications include:
Energy Efficiency Optimization
Incorporates shock-resistant spring steel valves and oversized motors to maintain peak efficiency under varying loads.
Reduced power consumption through precision-machined rotor profiles and optimized oil circulation.
Enhanced Structural Integrity
Chromium-plated piston rings and surface-hardened crankshafts minimize wear.
Large-capacity oil pump ensures stable lubrication under extreme temperatures (-40°C to 45°C).
Space-Saving Configuration
Compact footprint reduces installation complexity and auxiliary component requirements.
Modular assembly enables flexible integration with existing refrigeration units.
Noise-Dampened Operation
Balanced rotor dynamics and vibration-isolated mounting brackets achieve ≤68 dB(A) noise levels.
Multi-Refrigerant Compatibility
Supports R22, R404A, R507A, R134a, and R407C refrigerants.
Operates across extended pressure ranges (0.5–35 bar) for both low-temperature freezing and medium-temperature cooling.
Integrated Safety Controls
Standard protections: motor overtemperature, phase sequence monitoring, oil flow detection.
Optional safeguards: discharge temperature cutoff, oil pressure differential alerts, and high/low-pressure switches.
This compressor series combines operational reliability with adaptability, addressing diverse industrial refrigeration needs while prioritizing energy conservation and system longevity.
Integrated R&D and Manufacturing
Operates a dedicated R&D center in Hangzhou with over 100 professionals, including 24 technical experts. Specializes in full-cycle development of refrigeration compressors, from design to mass production.
Precision Manufacturing Technology
Maintains specialized production lines for screw compressor body machining, achieving micron-level accuracy. This ensures consistent product efficiency and durability across production batches.
Certified Quality Systems
Holds ISO 9001 (quality), ISO 14001 (environmental), and ISO 45001 (safety) certifications. Complies with China's National Industrial Product Production License standards and contributes to the China Refrigeration Society.
Academic-Industrial Collaboration
Partners with Xi'an Jiaotong University for optimized screw rotor profile development. This joint research enhances compressor energy efficiency and operational stability.
Rigorous Product Validation
Operates multiple test stations equipped with imported precision instruments. All equipment undergoes calibration by national accreditation bodies to verify compliance with GB/T 5773 standards.
Component Innovation Focus
Implements scientific quality control protocols for critical components. Continuous improvements target enhanced mechanical reliability and extended operational lifespan of compressors.
Why does the compressor fail to start or immediately shut down after starting?
Potential causes include improper energy regulation (not set to zero), misalignment between the compressor and motor, or excessive liquid refrigerant/oil in the chamber. Ensure energy settings are at zero, realign components, and drain any accumulated liquid before restarting.
What causes abnormally high exhaust pressure?
Elevated exhaust pressure may result from blocked pipelines, malfunctioning valves, or excessive system pressure. Regular inspection of valve operations and prompt cleaning of crystallized deposits (e.g., ammonium salts) in cooling systems are critical to prevent pressure buildup.
How to address sudden shutdown during operation?
Common triggers include low suction pressure, high exhaust pressure, or electrical faults (e.g., voltage instability). Verify pressure settings, check circuit integrity, and inspect thermal overload protectors or fuses for damage.
Why does the compressor vibrate excessively?
Vibration often stems from loose mounting bolts, rotor misalignment, or bearing wear. Tighten anchor bolts, ensure precise rotor alignment, and replace worn bearings. Extension arms require additional attention to alignment to avoid amplified vibration.
What leads to elevated exhaust temperatures?
Insufficient cooling fluid (e.g., diesel), blocked heat exchangers, or thermal expansion of rotors can cause overheating. Maintain optimal coolant flow, clean heat exchangers regularly, and monitor rotor clearances to prevent thermal lockup.
How to resolve oil pressure or lubrication failures?
Low oil pressure may indicate filter clogs, pump malfunctions, or insufficient oil levels. Clean or replace filters, inspect oil pumps, and ensure oil levels meet operational specifications. For extension arm configurations, verify lubrication pathways are unobstructed.
What maintenance prevents seal leaks in extension arm connections?
Regularly inspect seal integrity at extension arm joints, especially under thermal cycling conditions. Use high-temperature-resistant seals and apply torque checks on fasteners to maintain compression integrity. Periodic alignment verification reduces mechanical stress on seals.
