China OEM Refrigeration Compressor Ml-Qd91yg R600A Gas 220V Lbp 1/5HP best air compressor

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Product Description

1.; Product Performance
 1);QD91YG,; MS series,; use R600A refrigerant; 
 2);Voltage application 220V to 240V;
 3);Frequency for 50/60HZ;
 4);Motor type:; RSIR;
 5);Cooling type:; ST;
 6);Starting device is PTC Relay;
 7);Application:; Low Back Pressure;
 8);Nominal power is 1/5HP;
 9);COP is 1.;30 with the cooling capacity 155W.;

Basing on Test Condition(ASHRAE);
 Evaporating Temperature:; -23.;3 degree
 Ambient Temperature:; 32.;2 degree
 Subcooling Temperature:; 32.;2 degree
 Condensing Temperature:; 54.;4 degree
 Suction Temperature:; 32.;2 degree

2.;Compressor Specification

Serial Model HP V/Hz Displacement (cm3); Cooling Capacity  ASHRAE Motor type Starting Device
Test Conditions:; -23.;3ºC(-10F);
Capacity (W); Capacity (Btu/h); lnput Power(W); Current  (A);  COP   (W/W);  EER   (Btu/Wh);
L QD35YG 1/12 160V-240V/50-60Hz 3.;5  56  191  47  0.;38  1.;20  4.;07  RSIR PTC Starting Relay
QD43YG 1/11 4.;3  75  256  62  0.;45  1.;20  4.;13  RSIR
QD53YG 1/9 5.;3  85  290  65  0.;50  1.;30  4.;46  RSIR
QD65YG 1/7 6.;5  110  375  85  0.;52  1.;30  4.;42  RSIR
QD69YG 1/7+ 6.;9  120  409  92  0.;55  1.;30  4.;45  RSIR
ML QD75YG 1/6- 7.;5 130  444  100  0.;60  1.;40  4.;44  RSIR
QD85YG 1/6 8.;5 145  495  112  0.;75  1.;40  4.;42  RSIR
QD91YG  1/5 9.;1 155  529  104  0.;70  1.;50  5.;09  RSIR
QD103YG 1/4- 10.;3 168  573  112  0.;85  1.;50  5.;12  RSIR
  QD85YG 1/6 8.;5 145  495  112  0.;75  1.;60  4.;42  RSIR
MX QD91YG  1/5 9.;1 155  529  104  0.;70  1.;60  5.;09  RSIR
QD103YG 1/4- 10.;3 168  573  112  0.;85  1.;60  5.;12  RSIR
QD110YG 1/4 11.;0  185  631  124  0.;95  1.;60  5.;09  RSIR
MQ QD128YG 1/3- 12.;8  220  751  152  1.;05  1.;45  4.;94  RSIR
QD142YG 1/3 14.;2  240  819  166  1.;15  1.;45  4.;93  RSIR
QD153YG 1/3+ 15.;3  260  887  179  1.;25  1.;45  4.;96  RSIR

3.;Introduction of Company
Business Type:; Manufacturer,; Exporter
Location:; HangZhou(near ZheJiang and HangZhou);,; China
Year Established:; 2009 (former name:; HangZhou Maidi Heating and Refrigerating Equipment Co.;,;LTD.;); 
Company Certifcate:; ISO9001/ISO14001/OHS18001
Main Product:; Refrigerator Compressor; Refrigerant Gas; Liquid Line Refrigeration Spare Parts

4.;Why Choose Us
 Advantages we have:; 
  A.;Experienced refrigeration products supplier;
  B.;Over 10 years exporting history;
  C.;Alibaba CHINAMFG supplier,; factory recognizaed by BV/SGS/ISO.;.;.; so on.; 
 Benefit you get:;
  A.;Stable Quality—-Coming from good material and technology;
  B.;Lower Price—-Not cheapest but the lowest at the same quality;
  C.;Good Service—-Satisfactory service before and after sales.; 


Lubrication Style: Lubricated
Cooling System: Air Cooling
Cylinder Arrangement: Single
US$ 22/Piece
1 Piece(Min.Order)


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

air compressor

Can Gas Air Compressors Be Used in Construction Projects?

Gas air compressors are widely used in construction projects due to their portability, versatility, and ability to provide the necessary compressed air for various applications. They are an essential tool in the construction industry, enabling the efficient and effective operation of pneumatic tools and equipment. Here’s a detailed explanation of how gas air compressors are used in construction projects:

1. Powering Pneumatic Tools:

Gas air compressors are commonly used to power a wide range of pneumatic tools on construction sites. These tools include jackhammers, nail guns, impact wrenches, concrete breakers, air drills, sanders, grinders, and paint sprayers. The compressed air generated by the gas air compressor provides the necessary force and power for efficient operation of these tools, enabling tasks such as concrete demolition, fastening, surface preparation, and finishing.

2. Air Blow and Cleaning Operations:

In construction projects, there is often a need to clean debris, dust, and dirt from work areas, equipment, and surfaces. Gas air compressors are used to generate high-pressure air for air blow and cleaning operations. This helps maintain cleanliness, remove loose materials, and prepare surfaces for further work, such as painting or coating.

3. Operating Pneumatic Systems:

Gas air compressors are employed to operate various pneumatic systems in construction projects. These systems include pneumatic control devices, pneumatic cylinders, and pneumatic actuators. Compressed air from the gas air compressor is used to control the movement of equipment, such as gates, doors, and barriers, as well as to operate pneumatic lifts, hoists, and other lifting mechanisms.

4. Concrete Spraying and Shotcreting:

Gas air compressors are utilized in concrete spraying and shotcreting applications. Compressed air is used to propel the concrete mixture through a nozzle at high velocity, ensuring proper adhesion and distribution on surfaces. This technique is commonly employed in applications such as tunnel construction, slope stabilization, and repair of concrete structures.

5. Sandblasting and Surface Preparation:

In construction projects that require surface preparation, such as removing old paint, rust, or coatings, gas air compressors are often used in conjunction with sandblasting equipment. Compressed air powers the sandblasting process, propelling abrasive materials such as sand or grit onto the surface to achieve effective cleaning and preparation before applying new coatings or finishes.

6. Tire Inflation and Equipment Maintenance:

Gas air compressors are utilized for tire inflation and equipment maintenance on construction sites. They provide compressed air for inflating and maintaining proper tire pressure in construction vehicles and equipment. Additionally, gas air compressors are used for general equipment maintenance, such as cleaning, lubrication, and powering pneumatic tools for repair and maintenance tasks.

7. Portable and Remote Operations:

Gas air compressors are particularly beneficial in construction projects where electricity may not be readily available or feasible. Portable gas air compressors provide the flexibility to operate in remote locations, allowing construction crews to utilize pneumatic tools and equipment without relying on a fixed power source.

Gas air compressors are an integral part of construction projects, facilitating a wide range of tasks and enhancing productivity. Their ability to power pneumatic tools, operate pneumatic systems, and provide compressed air for various applications makes them essential equipment in the construction industry.

air compressor

How Do Gas Air Compressors Contribute to Energy Savings?

Gas air compressors can contribute to energy savings in several ways. Here’s a detailed explanation:

1. Efficient Power Source:

Gas air compressors are often powered by gasoline or diesel engines. Compared to electric compressors, gas-powered compressors can provide higher power output for a given size, resulting in more efficient compression of air. This efficiency can lead to energy savings, especially in applications where a significant amount of compressed air is required.

2. Reduced Electricity Consumption:

Gas air compressors, as standalone units that don’t rely on electrical power, can help reduce electricity consumption. In situations where the availability of electricity is limited or expensive, using gas air compressors can be a cost-effective alternative. By utilizing fuel-based power sources, gas air compressors can operate independently from the electrical grid and reduce dependence on electricity.

3. Demand-Sensitive Operation:

Gas air compressors can be designed to operate on demand, meaning they start and stop automatically based on the air requirements. This feature helps prevent unnecessary energy consumption during periods of low or no compressed air demand. By avoiding continuous operation, gas air compressors can optimize energy usage and contribute to energy savings.

4. Energy Recovery:

Some gas air compressors are equipped with energy recovery systems. These systems capture and utilize the heat generated during the compression process, which would otherwise be wasted. The recovered heat can be redirected and used for various purposes, such as space heating, water heating, or preheating compressed air. This energy recovery capability improves overall energy efficiency and reduces energy waste.

5. Proper Sizing and System Design:

Selecting the appropriate size and capacity of a gas air compressor is crucial for energy savings. Over-sizing a compressor can lead to excessive energy consumption, while under-sizing can result in inefficient operation and increased energy usage. Properly sizing the compressor based on the specific air demands ensures optimal efficiency and energy savings.

6. Regular Maintenance:

Maintaining gas air compressors in good working condition is essential for energy efficiency. Regular maintenance, including cleaning or replacing air filters, checking and repairing leaks, and ensuring proper lubrication, helps optimize compressor performance. Well-maintained compressors operate more efficiently, consume less energy, and contribute to energy savings.

7. System Optimization:

For larger compressed air systems that involve multiple compressors, implementing system optimization strategies can further enhance energy savings. This may include employing advanced control systems, such as variable speed drives or sequencers, to match compressed air supply with demand, minimizing unnecessary energy usage.

In summary, gas air compressors contribute to energy savings through their efficient power sources, reduced electricity consumption, demand-sensitive operation, energy recovery systems, proper sizing and system design, regular maintenance, and system optimization measures. By utilizing gas-powered compressors and implementing energy-efficient practices, businesses and industries can achieve significant energy savings in their compressed air systems.

air compressor

What Fuels Are Commonly Used in Gas Air Compressors?

Gas air compressors can be powered by various fuels depending on the specific model and design. The choice of fuel depends on factors such as availability, cost, convenience, and environmental considerations. Here’s a detailed explanation of the fuels commonly used in gas air compressors:

1. Gasoline:

Gasoline is a widely used fuel in gas air compressors, particularly in portable models. Gasoline-powered compressors are popular due to the widespread availability of gasoline and the convenience of refueling. Gasoline engines are generally easy to start, and gasoline is relatively affordable in many regions. However, gasoline-powered compressors may emit more exhaust emissions compared to some other fuel options.

2. Diesel:

Diesel fuel is another common choice for gas air compressors, especially in larger industrial models. Diesel engines are known for their efficiency and durability, making them suitable for heavy-duty applications. Diesel fuel is often more cost-effective than gasoline, and diesel-powered compressors typically offer better fuel efficiency and longer runtime. Diesel compressors are commonly used in construction sites, mining operations, and other industrial settings.

3. Natural Gas:

Natural gas is a clean-burning fuel option for gas air compressors. It is a popular choice in areas where natural gas infrastructure is readily available. Natural gas compressors are often used in natural gas processing plants, pipeline operations, and other applications where natural gas is abundant. Natural gas-powered compressors offer lower emissions compared to gasoline or diesel, making them environmentally friendly.

4. Propane:

Propane, also known as liquefied petroleum gas (LPG), is commonly used as a fuel in gas air compressors. Propane-powered compressors are popular in construction, agriculture, and other industries where propane is used for various applications. Propane is stored in portable tanks, making it convenient for use in portable compressors. Propane-powered compressors are known for their clean combustion, low emissions, and easy availability.

5. Biogas:

In specific applications, gas air compressors can be fueled by biogas, which is produced from the decomposition of organic matter such as agricultural waste, food waste, or wastewater. Biogas compressors are used in biogas production facilities, landfills, and other settings where biogas is generated and utilized as a renewable energy source. The use of biogas as a fuel in compressors contributes to sustainability and reduces dependence on fossil fuels.

It’s important to note that the availability and suitability of these fuel options may vary depending on the region, infrastructure, and specific application requirements. When selecting a gas air compressor, it’s crucial to consider the compatibility of the compressor with the available fuel sources and to follow the manufacturer’s guidelines regarding fuel selection, storage, and safety precautions.

China OEM Refrigeration Compressor Ml-Qd91yg R600A Gas 220V Lbp 1/5HP   best air compressorChina OEM Refrigeration Compressor Ml-Qd91yg R600A Gas 220V Lbp 1/5HP   best air compressor
editor by CX 2024-02-22

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