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Heavy-Duty Screw Refrigeration Compressor YLG90Z-315

Name: Heavy-Duty Screw Refrigeration Compressor YLG90Z-315
Brand: Blait
Rating: 5.0 (87 reviews)

Discover our high-efficiency industrial screw refrigeration compressor, designed for reliable cooling and freezing in commercial and industrial applications. Perfect for cold storage, processing facilities, and heavy-duty refrigeration systems.

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Model:
YLG90Z-315
Brand:
Blait

Product Overview

Blait’s High-Efficiency Industrial Screw Refrigeration Compressor is a professional-grade solution engineered for demanding commercial and industrial cooling and freezing applications. Designed with a robust semi-hermetic structure and advanced screw rotor technology, this compressor delivers stable performance, energy savings, and long service life—making it ideal for cold storage, food processing facilities, industrial refrigeration plants, and heavy-duty freezing systems. Whether operating under high-pressure or low-temperature conditions, it maintains superior cooling capacity while minimizing energy consumption, addressing the core needs of businesses seeking reliable and cost-effective refrigeration solutions.

Energy-Saving Industrial Screw Compressor YLG90Z-315

Core Features

High-Efficiency Energy-Saving Design

Optimized screw rotor profiles (YZ57 tooth profile line, composed of arcs and higher-order curves) and advanced motor technology work in tandem to reduce power consumption without compromising cooling output. The compressor’s minimized leakage triangle area and high area utilization coefficient (0.41 & 0.45) further enhance energy efficiency, cutting operational costs significantly.

Semi-Hermetic Structure for Easy Maintenance

The semi-hermetic design allows internal inspection and component access without full system shutdown, reducing downtime and maintenance complexity. Built with industrial-grade materials resistant to wear, corrosion, and high pressure, it ensures durability even in harsh industrial environments.

Low Noise & Vibration Operation

Engineered for smooth performance, this industrial screw compressor features low vibration and noise levels, making it suitable for sensitive settings such as food processing facilities and pharmaceutical cold storage where quiet operation is critical.

Wide Operating & Adjustable Capacity Range

Supports both high and low-temperature applications (-50℃ to 20℃) for flexible system integration. The adjustable capacity function enables precise control over refrigeration output, improving part-load efficiency and adapting to variable load conditions seamlessly.

Why Choose Blait

Tailored Industrial Solutions: Blait offers OEM and customized compressor specifications, including voltage, power, and installation accessories, to match unique project requirements—from small cold rooms to large-scale industrial freezing warehouses.

Proven R&D Strength: Backed by rigorous testing and engineering expertise, our screw compressors comply with international standards (GB/T19410-2018) and are trusted by industrial operators worldwide.

Global Refrigerant Compatibility: Compatible with common industrial refrigerants (R134a, R404A, R507A, NH₃), ensuring seamless integration with existing systems.

Long-Term Reliability: Precision engineering and high-quality components guarantee a long service life, reducing replacement and maintenance costs over time.

Parameter	Value
Product Name	Energy-Saving Screw Compressor
Model	YLG20Z-84 screw compressor
Lubrication Method	Lubricated
Cooling System	Air-cooled
Power Source	AC
Structure Type	Semi-hermetic
Installation Type	Mobile
Type	Single-screw compressor
Displacement	0.8-1.2 m³/min
Power	7.5 kW
Compression Stage	Single-stage
Lubricant Capacity	12 liters
Cooling Method	Air-cooling/Water-cooling
Voltage	380V/50Hz
Minimum Order Quantity	1 set/unit
Drive Method	Direct drive
Oil-free Type	Yes
Power Range	4 kW to 355 kW
Origin	China

The Energy-Saving Variable Speed Screw Compressor by Blait is engineered for industrial use. The YLG20Z-84 model is a reliable, single-stage compressor. Its direct drive system ensures efficient and smooth operation.

This compressor operates with a displacement of 0.8-1.2 m³/min, ideal for various industrial needs. It features a semi-hermetic structure and supports both air-cooling and water-cooling.

With a power capacity of 7.5 kW and a voltage requirement of 380V/50Hz, it delivers consistent performance. The lubrication method supports smooth operation with 12 liters of lubricant.

This model offers flexibility with its mobile installation type. Its oil-free design provides clean operation, suitable for demanding applications.

The power range from 4 kW to 355 kW makes it adaptable to various industrial setups. With a minimum order quantity of 1 unit, Blait ensures accessibility for businesses of all sizes.

Blait's screw compressors are designed for durability and energy efficiency, delivering reliable results for industrial applications.

Technical Parameter	Description
Product Model	YLG20Z-84 ~ YLG30Z-118
Tooth Profile Line	YZ57, composed of arcs and higher-order curves
Temperature Sensor	Standard PTC110°C
High-Pressure Working Conditions	Pressure difference resistance of 2.0MPa
Protection Module	Standard INT69 FSY protection module
Area Utilization Coefficient	0.41 & 0.45
Oil Flow Monitoring	Equipped with oil flow switch and monitoring of oil circulation as standard
Leakage Triangle Area	Smaller than conventional wires, reducing leakage losses effectively
Engine Displacement (50Hz)	84m³/h ~ 118m³/h
Engine Displacement (60Hz)	101m³/h ~ 142m³/h

The Variable Speed Screw Compressor by Blait is an innovative solution for diverse industrial needs. Models range from YLG20Z-84 to YLG30Z-118, featuring an advanced YZ57 tooth profile line for optimized performance. Equipped with a PTC110°C temperature sensor and INT69 FSY protection module, it ensures safety and reliability under high-pressure conditions (up to 2.0MPa). A high area utilization coefficient (0.41 & 0.45) and minimized leakage triangle area enhance energy efficiency. With engine displacement of 84m³/h to 118m³/h (50Hz) and 101m³/h to 142m³/h (60Hz), plus standard oil flow monitoring, this compressor is durable, efficient, and ideal for demanding applications.

Dimensional Drawings：

Energy-Saving Screw Compressors

Suction, Exhaust Valve Connector

MODEL	YLG20Z-84	YLG25Z-100	YLG30Z-118
SL	φ54(21/8")	φ54(2 1/8")	φ54(2 1/8")
DL	φ42(13/8")	φ42(1 3/8")	φ42(1 3/8")

Application Scope lcon

Energy-Saving Screw Compressors

Performance Parameter Table (R22)

Freqency 50 Hz

Based on 10 degree suction superheat;

and liquid re-cooling (Economiser operation)

Compressor type	Cond temp（℃）	Qo(kw) Pe(kW)	Cooling capacity Qo (kw) Power consumption Pe (kW)
			Evaporating temperatue (C )
			-10	-15	-20	-25	-30	-35	-40	-45
YLG20Z-84	30	Qo	61.9	51.9	43.4	35.9	29.3	23.5	18.4	14.1
	30	Pe	19.4	18.5	16.9	16.6	15.8	15.2	14.6	13.9
	40	Qo	59.1	49.5	41.3	34	27.6	21.9	17.1	12.8
	40	Pe	23.2	22.2	21.3	20.5	19.7	19.2	18.3	17.4
	50	Qo	55.1	46.3	38.4	31.4	25.2	19.8	15
	50	Pe	27.8	26.8	26.2	25.3	24.5	23.2	21.8
YLG25Z-100	30	Qo	71.4	60.6	50.9	42.3	34.7	28	22.2	17.2
	30	Pe	22.2	21.3	20.5	19.8	18.6	17.9	17.2	16.6
	40	Qo	68.7	58.1	48.6	40.3	32.8	26.4	20.7	15.8
	40	Pe	26.5	25.4	24.5	23.6	22.7	21.8	20.9	20.1
	50	Qo	65.1	54.9	45.7	37.5	30.3	23.9	18.4
	50	Pe	31.8	30.7	29.5	28.6	27.7	26.1	25
YLG30Z-118	30	Qo	83.1	70.5	59.3	49.4	40.6	32.8	26.1	20.2
	30	Pe	25.9	24.7	23.5	22.4	21.4	20.5	19.6	18.8
	40	Qo	79.9	67.6	56.7	47	38.5	30.9	24.4	18.7
	40	Pe	30.5	29.3	28.2	27.1	26	25.1	23.9	22.8
	50	Qo	75.2	63.6	53.1	43.8	35.5	28.2	21.8
	50	Pe	36.5	35.6	33.9	32.6	31.5	30.3	28.7

Performance Parameter Table (R404A/R507A)

Freqency 50 Hz

Based on 10 degree suction superheat;

and liquid re-cooling (Economiser operation)

Compressor type	Cond temp（℃）	Qo(kw) Pe(kW)	Cooling capacity Qo (kw) Power consumption Pe (kW)
			Evaporating temperatue (C )
			-15	-20	-25	-30	-35	-40	-45
YLG20Z-84	30	Qo	56.8	47.9	40	33	26.8	21.4	16.7
	30	Pe	22.6	22.1	21.4	20.7	19.7	18.6	18
	40	Qo	53.7	53.7	37.5	30.7	24.7	19.5	14.9
	40	Pe	28.3	28.3	26.8	25.8	24.7	23.5	21.9
	50	Qo			34.2	27.1	21.6	16.5	11.9
	50	Pe			32.1	30.9	29.5	28.5	26.3
YLG25Z-100	30	Qo	66.3	55.9	46.7	38.5	31.3	25.1	19.6
	30	Pe	25.3	24.5	23.8	22.9	22.5	21.2	20.3
	40	Qo	62.6	52.7	43.9	36	29.1	23	17.7
	40	Pe	31.8	31.2	28.8	29.2	28.2	26.5	24.8
	50	Qo			42.6	33.7	25.7	19.8	14.6
	50	Pe			40.2	37.7	34.8	32.6	30.2
YLG30Z-118	30	Qo	75.6	63.9	53.4	44.1	36	28.9	22.7
	30	Pe	29.1	28.1	27.2	26.3	24.9	24.1	22.8
	40	Qo	71.4	60.3	50.3	41.5	33.8	26.9	21
	40	Pe	36.2	35.2	33.8	32.8	31.2	30	28.5
	50	Qo			46.2	38	30.8	24	18.3
	50	Pe			41.5	40.1	38.4	37.7	35.2

Technical Data Sheet

Compressor type	Displacement (50Hz)	Displacement (60Hz)	Discharge pipe	Suction pipe	Energy regulation	Power supply	Maximumoperating current	Maximumpower	Start/locked rotor current	Weight
Compressor type	m³/h		mm (inch)		%	V/φ/Hz	A	kW	A	kg
YLG20Z-84	84	101	φ42(15/8")	φ54(21/8")	100/90/55	400±10% △/△△3~/50HZ 460±10% △/△△3~/60HZ Part Winding	48	29	129/210	166
YLG30G-84	84	101			100/90/70		52	33	126/218	170
YLG25Z-100	100	121			100/80/45		52	33	126/218	169
YLG35G-100	100	121			100/85/60		58	37.3	153/266	178
YLG30Z-118	118	142			100/75/45		58	37	153/266	174
YLG40G-118	118	142			100/80/55		66	42	182/311	183