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China factory 2 Bar 3 Bar 4 Bar 5 Bar Low-Pressure Water-Injection Oil-Free Single Screw Type Air Compressors with Permanent Magnet Motor air compressor CHINAMFG freight

Product Description

LG-II series two-stage air compressor

Product Description

Main Machine:

  1. Adopt two-stage compression main engine, large rotor and low speed.
  2. The upper and lower integrated design concept combines the first-stage compression rotor and the second-stage compression rotor in 1 casing to achieve the highest compression transfer efficiency.

      3. The compression ratio of each stage is small, the leakage is smaller, and the volume utilization rate is high. The bearing is less stressed and has a long service life.

Intake system:
Vertical straight-through air intake structure minimizes pressure loss, special air inlet sealing material ensures long service life, no wearing parts, reliable performance and long service life.

Piping system:
The pipeline system adopts the American standard pipeline design. Due to the large inner diameter of the transport pipe and the small flow resistance, the hard pipe usually has a higher transport rate than the hose, and is stable, long service life, and maintenance-free for life.

Permanent magnet motor:
The variable frequency permanent magnet motor has the characteristics of high efficiency, high power factor, wide high efficiency interval, stable speed, zero slip, and energy saving. Therefore, the permanent magnet frequency conversion equipment under the two-stage CHINAMFG can be more energy saving.

Controller:

  1. Adopt advanced microcomputer control to achieve intelligent operation and humanized operation, and the operation status is clear at a glance.

2. Equipped with advanced intelligent control system, various parameters such as pressure and temperature are continuously monitored, controlled and displayed according to preset values.
3. It has the function of automatic fault alarm and protection, and stores historical operation records in time.

Product Feature
Energy saving analysis

  1. The compression ratio of each stage is much smaller than the compression ratio of the common main engine of the same power, and by oil injection cooling, the temperature of the secondary intake air is reduced, and the compression work is greatly reduced.
  2. The low pressure ratio greatly reduces the backflow leakage between the rotors, and greatly improves the volumetric efficiency and adiabatic efficiency, which is ultimately reflected in the increase in the compressed gas production.
  3. Two-stage compression is better than single-stage at the same power.

Specification

Mode L571A-11 L030A-11 L037A-11

Machine

Set

Exhaust volume (m³/min) 4.2 6.2 7.2
Exhaust pressure (MPa) 0.8 0.8 0.8
Compression level 2 2 2
Motor power(kw) 22 30 37
Motor speed(rpm) 1480 1480 1480
Energy efficiency rating Grade I Grade I Grade I
Start method soft start soft start soft start
Transmission mode direct connection direct connection direct connection
Connection size G1-1/2″ G1-1/2″ G1-1/2″
Cooling method air cooling air cooling air cooling
Length(mm) 1785 1785 1785
Width(mm) 1107 1107 1107
Height(mm) 1432 1432 1432
Machine weight(kg) 1200 1300 1350

 

Mode L045A-11 L055A-11 L075A-11

Machine

Set

Discharge volume(m3/min) 10.5 12.55 15.5
Discharge pressure (MPa) 0.8 0.8 0.8
Compression level 2 2 2
Motor power(kw) 45 55 75
Motor speed(rpm) 1480 1480 1480
Energy efficiency rating Grade I Grade I Grade I
Start method soft start soft start soft start
Transmission mode direct connection direct connection direct connection
Connection size G1-1/2″ G2″ G2″
Cooling method air cooling air cooling air cooling
Length(mm) 1785 2180 2180
Width(mm) 1107 1350 1350
Height(mm) 1432 1600 1600
Machine weight(kg) 1850 2000 2150

 

FAQ

Q1: What’s your delivery time?
A: 15 days to produce, within 3 days if in stock.
 
Q2: What’s methods of payments are accepted?
A: We agree T/T ,L/C , West Union ,Money Gram ,Paypal.
 
Q3: What about the shipments and package?
A: 40′ container for 2 sets, 20′ container for 1 set, 
Machine in nude packing, spare parts in standard export wooden box.
 
Q4: Have you got any certificate?
A:We have got ISO,CE certificate.
 
Q5: How to control the quality?
A: We will control the quality by ISO and CE requests.
 
Q6: Do you have after-sale service and warranty service ?
A: Yes, we have.We can supply instruction for operation and maintenance.If necessary, we can send our engineer to repair the machine in your company.
Warranty is 1 year for the machine.
 
Q7: Can I trust your company ?
 A: Our company has been certificated by Chinese government,and verified by SGS Inspection Company. 

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After-sales Service: Online
Warranty: 3000hours
Lubrication Style: Lubricated
Customization:
Available

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

air compressor

What Is the Role of Water Separators in Water-Lubricated Compressors?

In water-lubricated compressors, water separators play a crucial role in maintaining the integrity and performance of the compressed air system. Here’s a detailed explanation of their role:

Water separators, also known as moisture separators or condensate separators, are components within the compressed air system that are specifically designed to remove water or moisture from the compressed air stream. They help ensure that the compressed air remains dry and free from excessive moisture, which can cause various issues in the system and downstream equipment.

The primary role of water separators in water-lubricated compressors is to separate and remove water that is present in the compressed air due to the compression process and condensation. Here’s how they accomplish this:

  1. Condensate Separation: During the compression of air, moisture present in the air is compressed along with the air molecules. As the compressed air cools down after the compression stage, the moisture condenses into liquid form. Water separators are designed to efficiently separate this condensate from the compressed air stream, preventing it from entering downstream equipment, pipelines, or end-use applications.
  2. Gravity and Centrifugal Separation: Water separators utilize various separation principles to separate the condensate from the compressed air. Gravity-based separators rely on the difference in density between the water droplets and the compressed air to allow the water to settle at the bottom of the separator, where it can be drained out. Centrifugal separators use centrifugal force to spin the air and water mixture, causing the water droplets to be thrown outwards and collected in a separate chamber.
  3. Coalescing and Filtration: Water separators often incorporate coalescing and filtration mechanisms to enhance their efficiency. Coalescing filters are used to capture and merge small water droplets into larger droplets, making it easier for the separator to separate them from the compressed air. Filtration elements, such as fine mesh or media, may be incorporated to remove any remaining water droplets or particulate matter that could potentially pass through the separator.
  4. Automatic Drainage: To ensure continuous and efficient operation, water separators are equipped with automatic drain valves. These valves periodically or on demand, expel the collected condensate from the separator. Automatic drainage prevents the accumulation of water in the separator, which can lead to reduced separation efficiency, increased pressure drop, and potential damage to downstream equipment.

By effectively removing water and moisture from the compressed air stream, water separators help prevent issues such as corrosion, clogging, freezing, and degradation of pneumatic equipment and processes. They contribute to maintaining the quality and reliability of the compressed air system while protecting downstream components and applications from the negative effects of moisture.

It is important to note that proper sizing, installation, and maintenance of water separators are essential to ensure their optimal performance. Regular inspection and maintenance of the separators, including draining the collected condensate, replacing filtration elements, and checking for any leaks or malfunctions, are necessary to ensure the efficient operation of water-lubricated compressors and the overall compressed air system.

air compressor

Are There Any Restrictions on the Type of Water Used in Water-Lubricated Compressors?

When it comes to water-lubricated compressors, there are certain restrictions and considerations regarding the type of water that can be used. Here’s a detailed explanation of the restrictions on the type of water used in water-lubricated compressors:

Water Quality:

  • Cleanliness: The water used in water-lubricated compressors should be clean and free from excessive impurities or contaminants. Impurities like sediment, minerals, or debris can cause blockages, wear, or damage to the compressor components. It is important to use water that meets the cleanliness requirements specified by the manufacturer.
  • Chemical Composition: The chemical composition of the water can also be a factor to consider. Water with high mineral content or hardness can lead to scale formation, which can affect the performance and lifespan of the compressor. Water treatment methods, such as water softening or filtration, may be necessary to maintain the desired water quality.

Water Temperature:

  • Freezing Point: In cold climates, it is important to ensure that the water used in the compressor’s lubrication system does not freeze. Freezing can cause operational issues and damage to the equipment. The water temperature should be maintained above freezing point through insulation, heating, or other suitable methods.
  • Temperature Range: Water-lubricated compressors may have specific temperature requirements to ensure optimal operation and lubrication. Operating the compressor with water temperatures outside the recommended range can affect its performance and lifespan. It is important to adhere to the manufacturer’s guidelines regarding the acceptable temperature range for the water used.

Water Treatment:

  • Water Treatment Systems: Depending on the quality of the available water supply, it may be necessary to use water treatment systems to ensure the water meets the required standards. Water treatment systems can help remove impurities, control chemical composition, and maintain the desired water quality for effective lubrication and cooling.
  • Water Treatment Frequency: Regular maintenance and monitoring of the water treatment systems are essential to ensure their effectiveness. The frequency of water treatment, such as filtration or chemical treatment, may vary depending on the specific conditions and the water quality in the area.

Manufacturer Recommendations:

  • Consulting the Manufacturer: It is important to consult the manufacturer’s guidelines and recommendations regarding the type of water to be used in water-lubricated compressors. Manufacturers may specify the acceptable water quality parameters, treatment methods, or restrictions to ensure optimal performance and longevity of the compressor.

By considering the cleanliness, chemical composition, temperature, and appropriate water treatment measures, the type of water used in water-lubricated compressors can be optimized to meet the requirements specified by the manufacturer. Adhering to these restrictions helps ensure efficient and reliable operation of the compressor while minimizing the risk of component damage or performance issues.

air compressor

Are Water-Lubricated Air Compressors Suitable for Food and Beverage Industries?

Water-lubricated air compressors can be highly suitable for the food and beverage industries due to several reasons:

  1. Food-grade lubrication: Water is a natural and food-grade lubricant. It does not introduce harmful contaminants or chemicals into the production process, ensuring the safety and quality of food and beverage products. Water lubrication eliminates the risk of oil contamination in food products that can occur with oil-lubricated compressors.
  2. Compliance with hygiene standards: The food and beverage industries have strict hygiene standards and regulations. Water-lubricated air compressors align with these standards as water is a clean and sanitary lubricant. It minimizes the risk of cross-contamination and helps maintain a hygienic production environment.
  3. Reduced risk of product contamination: Water lubrication eliminates the possibility of oil carryover or oil vapor entering the compressed air system. This reduces the risk of oil contamination in food and beverage products, ensuring their purity and quality.
  4. Improved product shelf life: Oil-lubricated compressors can release oil aerosols or vapors that may negatively affect the taste, odor, or quality of food and beverage products. Water-lubricated compressors eliminate this concern, contributing to improved product shelf life and maintaining the desired sensory attributes.
  5. Easy cleanup and maintenance: Water lubrication simplifies cleanup and maintenance procedures in food and beverage production facilities. Water does not leave behind sticky residues or require extensive cleaning processes. It facilitates faster and more efficient cleaning, reducing downtime and improving overall productivity.
  6. Environmental friendliness: Water is a sustainable and environmentally friendly lubricant choice. It is non-toxic, biodegradable, and does not contribute to air or water pollution. Using water-lubricated air compressors aligns with the sustainability goals of the food and beverage industries.

Considering these factors, water-lubricated air compressors are well-suited for the food and beverage industries, ensuring compliance with hygiene standards, preventing product contamination, and promoting a safe and sustainable production environment.

China factory 2 Bar 3 Bar 4 Bar 5 Bar Low-Pressure Water-Injection Oil-Free Single Screw Type Air Compressors with Permanent Magnet Motor   air compressor CHINAMFG freightChina factory 2 Bar 3 Bar 4 Bar 5 Bar Low-Pressure Water-Injection Oil-Free Single Screw Type Air Compressors with Permanent Magnet Motor   air compressor CHINAMFG freight
editor by CX 2023-12-28