China best R22 R134A 80HP Refrigeration CHINAMFG Chiller Condenser Refrigeration Equipment air compressor price

Product Description


R22 R134A 80HP Refrigeration CHINAMFG Chiller Condenser Refrigeration Equipment

About US


We are a manufacturer, we can customize products for you according to your requirements.If you don’t know which model is suitable for you, you could send message to us.We have several professional engineers to make a customized solution for you.

Product Description


Open Type Medium And low Temperature Air-Cooled Condensing Unit    
Model of units RX-BZ- RX-BZ- RX-BZ- RX-BZ- RX-BZ- RX-BZ- RX-BZ- RX-BZ- RX-BZ-
003L 004L 005L 007L 009L 012L 014L 018L 571L
Compressor model 4FES-3 4ES-4 4DES-5 4VES-7 4TES-9 4PES-12 4NES-14 4HES-18 4GE-23
Applicable Temperature(ºC) -20ºC ~ -35ºC
Refrigerant R404A
Condenser Quantity of Fan(pcs) 2 2 2 2 4 4 4 4 4
Power of Fan (w) 2*135 2*190 2*190 2*190 4*135 4*190 4*190 4*190 4*250
Ref.Capacity Evaporating Ref. 4640 5890 7030 8240 15710 11320 13950 19880 23400
 of  Temperature Capacity (w)
condensing units -25ºC Power (w) 3060 3840 4550 5080 6350 6880 8580 12000 14270
  Evaporating Ref. 3590 4540 5420 6140 7760 8410 10520 15320 15320
  Temperature Capacity (w)
  -30ºC Power (w) 2660 3320 3940 4260 5380 5740 7240 1 0571 1 0571
Coupling Tube coupling 12 12 12 16 16 16 16 16 22
Suction coupling 22 28 28 28 35 35 35 42 54
Overall  Lenght (A) mm 940 1000 1000 1571 1170 1170 1170 1200 1340
dimension Width(B) mm 820 820 820 820 900 900 900 900 900
  Height (H) mm 540 590 590 690 1571 1120 1120 1320 1420
Installation dimension(D*E)mm 590*786 644*786 644*786 644*786 800*860 800*860 800/860 830*860 9


Compressor recommended (Copeland, CHINAMFG and others optional)

1. Special valve design, high efficiency, stability and long service life. 2. Large cooling capacity, energy efficiency ratio (COP value) 20% higher than other brands of compressors.
3. Good low-temperature performance. For R22 refrigerant, the evaporation temperature of a single-stage compressor can reach -40°C.
4. Used in a variety of refrigerants (R12, R22, R502, R134a, R404A, R507), meeting environmental protection requirements.
5. Use separate coil starting to reduce the starting current and reduce the impact on the power grid.
6. Wide range of applications: compressors are divided into medium-high temperature type and low-temperature type. The evaporation temperature of the high-temperature type can reach 12.5ºC, the evaporation temperature of the low-temperature single-stage compressor can reach (R22)-40ºC, and the evaporation temperature of the two-stage compressor can reach (R22)-40ºC. The evaporation temperature can reach (R22) -50ºC. If R404a or R507 is used, the evaporation temperature will be lower, CHINAMFG -70°C.
7. Wide range of energy adjustment: 4-cylinder compressor energy adjustment range is 50%, 100%, 6-cylinder compressor energy adjustment range is 33%, 66%, 100%. When the load of the refrigeration system changes, effective adjustments are made to reduce operating costs.
8. The built-in motor overload protector (INT69VS) effectively protects the motor from overload and overheating due to increased load on the refrigeration system or insufficient refrigerant return air volume in the refrigeration system.
9. In order to prevent the starting current from being too large, customers can also choose an unloading starting device.
10. In order to reduce the exhaust temperature, users can choose a water-cooled cylinder head. For offshore use, a seawater-proof cylinder head can be used, with an additional fan or electronic liquid injection device (CIC system).


Our Factory

Our Cases


1. Who are we?
We are based in ZheJiang , China, starting from 2003, specializing in refrigeration industry for  20 years, and staff in our company is more than 100, meanwhile, our footprints are all over China, playing more and more important role in international market.

2.What can you buy from us?
 Refrigeration Compressors, Condensing Units, Refrigeration Equipment, thermal insulation Sandwich Panels and other Parts, also, we provide turn-key solutions and products according to your needs.

3. Why choose us?
We can list the advantages and disadvantages of different solutions (Construction Cost, Running Cost, Maintenance Cost and etc ), which may help you make a decision.

4. How can we guarantee quality?
All parts have gone through strict test before assembly in batch, and the finished goods will go through quality test before packing and shipping, also we provide after-services both online and local technical instruction if necessary.

5. What is your standard delivery time and shipping port?
 It usually takes 10~20 working days for standard parts. And for customized products, it may take 20~30 working days. Departing from ZheJiang , ZheJiang and other Ports.

After-sales Service: Online
Warranty: 1-2 Year Warranty
Lubrication Style: Lubricated
Cooling System: Water Cooling
Power Source: AC Power
Cylinder Position: Vertical
US$ 1000/Piece
1 Piece(Min.Order)

Request Sample



air compressor

What Is the Lifespan of a Typical Screw Compressor?

The lifespan of a typical screw compressor can vary depending on several factors, including the quality of the equipment, maintenance practices, operating conditions, and usage patterns. Here’s a detailed explanation:

The lifespan of a screw compressor is typically measured in operating hours, which refers to the cumulative hours the compressor has been in operation. While it’s challenging to provide an exact lifespan, as it can vary significantly, screw compressors are generally designed to have a long service life, often ranging from 20,000 to 100,000 operating hours.

Several factors can influence the lifespan of a screw compressor:

  • 1. Quality of Construction: The quality of construction and materials used in the compressor’s manufacturing plays a crucial role in its lifespan. Compressors built with high-quality components and robust construction tend to have a longer service life compared to those with lower-quality materials.
  • 2. Maintenance Practices: Regular and proper maintenance is essential to extend the lifespan of a screw compressor. Following the manufacturer’s recommended maintenance schedule, including tasks such as oil changes, filter replacements, and inspection of critical components, helps ensure optimal performance and reliability. Neglecting maintenance can lead to premature wear and potential breakdowns.
  • 3. Operating Conditions: The operating conditions in which the compressor operates can impact its lifespan. Factors such as temperature, humidity, and the presence of contaminants in the ambient air can affect the compressor’s performance and longevity. Compressors operated in clean, well-ventilated environments with controlled temperature and humidity conditions tend to have longer lifespans.
  • 4. Load and Usage Patterns: The load and usage patterns of the compressor also influence its lifespan. Compressors operated at or near their maximum capacity for prolonged periods may experience higher wear and tear compared to those operated within their recommended operating range. Compressors subjected to frequent start-stop cycles or continuous operation may have different lifespans based on the stress placed on their components.
  • 5. Maintenance and Repairs: The response to maintenance and repair needs can impact the compressor’s lifespan. Timely addressing of maintenance issues and prompt repairs when faults or malfunctions occur can prevent further damage and help prolong the compressor’s lifespan.
  • 6. Manufacturer and Design: The reputation and expertise of the manufacturer play a role in determining the compressor’s lifespan. Established manufacturers with a track record of producing reliable and durable equipment often design their compressors to have longer lifespans. It’s advisable to choose compressors from reputable manufacturers known for their quality and reliability.

It’s important to note that while a screw compressor may have a designed lifespan, it doesn’t necessarily mean it will fail immediately after reaching that threshold. With proper maintenance and care, compressors can often exceed their expected lifespan. On the other hand, neglecting maintenance or subjecting the compressor to harsh operating conditions can shorten its lifespan.

Regular monitoring of the compressor’s performance, including parameters such as discharge temperature, vibration levels, and energy consumption, can help identify any potential issues and take corrective actions to maintain the compressor’s reliability and extend its lifespan.

In summary, the lifespan of a typical screw compressor can range from 20,000 to 100,000 operating hours, depending on factors such as the quality of construction, maintenance practices, operating conditions, usage patterns, and manufacturer reputation. Adhering to proper maintenance practices, operating the compressor within its recommended parameters, and choosing a reputable manufacturer can help ensure a longer lifespan for the screw compressor.

air compressor

How Do You Maintain the Air Quality in a Screw Compressor System?

Maintaining air quality in a screw compressor system is crucial to ensure the performance, efficiency, and reliability of the compressed air. Here’s a detailed explanation:

1. Proper Intake Filtration:

Install high-quality intake filters to prevent contaminants, such as dust, dirt, and debris, from entering the screw compressor system. These filters should have an appropriate filtration rating to effectively capture particles of the desired size. Regularly inspect and clean or replace the intake filters to maintain their effectiveness.

2. Compressed Air Dryers:

Use compressed air dryers, such as refrigerated dryers or desiccant dryers, to remove moisture from the compressed air. Moisture can lead to corrosion, damage to pneumatic equipment, and compromised air quality. The type of dryer selected depends on the specific application requirements and the desired level of moisture removal.

3. Oil Removal Filters:

In oil-injected screw compressors, oil is used for lubrication, which can contaminate the compressed air. Install oil removal filters downstream of the compressor to remove any oil carryover from the compressed air. These filters typically use coalescing technology to separate and trap oil particles, ensuring clean air quality.

4. Condensate Management:

Effectively manage condensate, which is formed when moisture in the compressed air condenses as it cools. Install condensate drains and separators to remove and properly dispose of condensate. Improper condensate management can lead to water contamination in the compressed air system.

5. Regular Maintenance:

Perform regular maintenance tasks as recommended by the manufacturer, including oil changes, filter replacements, and inspections. Proper maintenance helps ensure that the compressor system operates efficiently and minimizes the risk of contaminants entering the compressed air.

6. Air Receiver Tank Maintenance:

If the screw compressor system includes an air receiver tank, regularly inspect and clean the tank to remove any accumulated debris or contaminants. Additionally, ensure that the tank’s drain valve is functioning correctly to remove any water or condensate from the tank.

7. Leak Detection and Repair:

Regularly inspect the compressed air system for leaks. Leaks not only waste energy but also allow contaminants from the surrounding environment to enter the system. Use appropriate leak detection methods, such as ultrasonic detectors or soapy water solutions, to identify and promptly repair any leaks.

8. Monitor and Control Operating Conditions:

Monitor and maintain proper operating conditions within the screw compressor system. This includes monitoring discharge pressure, temperature, and other relevant parameters to ensure they are within acceptable ranges. Implement appropriate control strategies, such as regulating compressor capacity or adjusting dryer settings, to optimize air quality while meeting the specific application requirements.

9. Training and Awareness:

Provide training to operators and maintenance personnel on the importance of air quality in a screw compressor system. Ensure they understand proper maintenance procedures, the significance of filtration, and how to identify and address potential air quality issues.

10. Compliance with Regulations:

Be aware of and comply with relevant regulations and standards governing air quality in your specific industry or application. This may include adherence to guidelines such as ISO 8573, which specifies air purity classes for different contaminants in compressed air systems.

By following these practices, you can maintain the air quality in a screw compressor system, ensuring clean, reliable, and high-quality compressed air for various applications.

air compressor

What Is the Efficiency of Screw Compressors?

The efficiency of screw compressors can vary depending on various factors, including the design, operating conditions, and maintenance. Here’s a detailed explanation of the efficiency of screw compressors:

1. Isothermal Efficiency:

Isothermal efficiency refers to the ideal efficiency of a compressor operating under isothermal conditions. In reality, screw compressors experience temperature rise during compression, and therefore, they do not achieve isothermal efficiency. The compression process in screw compressors is considered to be relatively close to isothermal compared to other compressor types, such as reciprocating compressors. This is due to the continuous and smooth flow of air or gas through the compression chamber, which helps in minimizing temperature differences.

2. Adiabatic Efficiency:

Adiabatic efficiency refers to the actual efficiency of a compressor, taking into account the heat generated during compression. Screw compressors typically have higher adiabatic efficiency compared to reciprocating compressors. The helical design of the rotors and the presence of intermeshing lobes allow for efficient compression with minimal energy loss. The adiabatic efficiency of a screw compressor can be influenced by factors such as the compression ratio, rotational speed, and discharge pressure.

3. Overall Efficiency:

The overall efficiency of a screw compressor takes into account various factors, including mechanical losses, power consumption, and auxiliary power requirements. Mechanical losses can occur due to friction between the rotors, bearings, and other moving parts. Well-maintained screw compressors with properly lubricated components and well-aligned rotors can minimize mechanical losses and improve overall efficiency. Power consumption is another factor affecting efficiency, and it can vary depending on the size, design, and operating conditions of the compressor.

4. Energy Efficiency:

Energy efficiency is an important aspect of screw compressors. It relates to the ability of the compressor to convert electrical energy into compressed air with minimal energy waste. Energy-efficient screw compressors are designed to optimize the compression process, reduce power consumption, and maximize output for a given input. Variable Speed Drive (VSD) screw compressors, for example, can adjust the rotational speed to match the compressed air demand, resulting in improved energy efficiency and significant energy savings.

It’s important to note that the efficiency of screw compressors can vary depending on the specific model, design features, and operating conditions. Regular maintenance, including proper lubrication, cleaning, and component inspection, is crucial for maintaining high efficiency levels. Additionally, selecting the right size and type of screw compressor for the intended application is essential to achieve optimal efficiency and performance.

In summary, screw compressors are known for their relatively high efficiency compared to other compressor types. While they may not achieve perfect isothermal efficiency, their adiabatic efficiency, overall efficiency, and energy efficiency make them suitable for a wide range of industrial applications.

China best R22 R134A 80HP Refrigeration CHINAMFG Chiller Condenser Refrigeration Equipment   air compressor priceChina best R22 R134A 80HP Refrigeration CHINAMFG Chiller Condenser Refrigeration Equipment   air compressor price
editor by CX 2023-12-12

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