Products Center
  • Industrial Chiller
    Industrial Chiller
    H.Stars Industrial Energy Saving HVAC products including: Air Cooled Chiller, Water Cooled Chiller, Industrial Chiller, Multi-function Chiller, Hot Water Unit, Heat Recovery Unit, Heat Pump Unit, Condensing Unit, Low Temperature Chiller etc.
  • Commercial Cooling Central A/C
    Commercial Cooling Central A/C
    Commercial cooling central air conditioning unit  apots H.Stars patented heat recovery unit to supply free hot water for clients. Centrigual chiller etc.
  • Heat Pump
    Heat Pump
    Commercial Heat Pump with High quality ; Outlet Temperature Range: -35°C~85°C Heating capacity range: 8.7KW -1690 kW (for Modular Type);
  • Centrifugal Chiller
    Centrifugal Chiller
    Centrifugal chiller is so reliable, so high-performing, so future-proof that once it’s installed, you may never have to think about it again. Low maintance cost. 2 Stages Centrifugal Chiller with cooling capacity range up to 2000RT .
  • Special None Standard Chiller
    Special None Standard Chiller
    Special and none standard chiller can be customized by H.Stars with high efficiency and quality . Welcome to enquiry and build your own chiller to save cost and time !
  • Heat Exchanger
    Heat Exchanger
    UAR custom-made Shell and Tube  heat exchangers , Titanium and Stainless heat exchangers ,  for energy conversion systems are designed for high-temperature and high-pressure environments. 
  • Air Handling Unit HVAC Equipment
    Air Handling Unit HVAC Equipment
    A full-line of air handling units from standard through custom offer design flexibility to balance performance and economy without compromising quality.  Air handling units providing a fresh, healthy, and comfortable environment for buildings of all sizes and different applications.
  • Cooling Tower
    Cooling Tower
    Industrial cooling tower for water cooled chillers . Wate cooling:When the fluid temperature is too high(surpassing setting temperature), the spray pump automatically spray the water on the pipe wall and form water film
  • Other Cooling Equipment
    Other Cooling Equipment
    H.Stars can supply  ASME chiller with high quality standard . Or other special chiller unit are welcome to send us to specially design for you as we have our own R&D department.
About Us
About Us
H.Stars (Guangzhou) Refrigerating Equipment Group Ltd.
        H.Stars (Guangzhou) Refrigerating Equipment Group Ltd.,established in Economic & Technological Development Zone of Guangzhou in 1992, composed of 8 subsidiaries to provide one-stop solution to HVAC customers, specializing in R&D, production, design and installation. As the company grows, H.Stars group expands its business globally and have sold to 53 different countries. H'Stars group is awarded "New and High Technology Enterprise in Guangzhou" and has become the training base of many universities both in China and abroad via technology cooperation.         H.Stars group supplies an extensive line of Commercial and Industrial Energy Saving HVAC products including: Air Cooled Chiller, Water Cooled Chiller, Industrial Chiller, Multi-function Chiller, Hot Water Unit, Heat Recovery Unit, Heat Pump Unit, Condensing Unit, Low Temperature Chiller, Shell and Tube Heat Exchanger, Air Handling Unit, Fan Coil Unit, Cooling Tower, etc.          H.Stars group has been dedicated in quality and innovation and is technically strong in commercial and industrial application as a HVAC manufacturer. Apart from obtaining plenty of energy-saving product patents, H'Stars group has achieved CE certifications for Pressure Vessel and standard chillers, BR1, ASME, ISO9001:2000, ISO14001:2004 and other certifications.          A good reputation of H'Stars group has been built and we deliver a full HVAC service to customers worldwide. Our products are widely applied in industries for cooling of Laser generators, Welding electrodes, Cutting machines, Electric spark machines, Extrusion process, Hydraulic System, Electroplating, Ultrasonic Cleaning, Ion Plating film, Electronic facility, Electrical appliance components, Compressed Gas Dehumidification, Dairy and Beverage Cooling processing, Pharmaceutical and Biological products, Medical equipment, Glass Coating, Tempered Glass and Cultivation Sea Food.          H.Stars group will continue to develop energy saving and environmental friendly equipment to create "The Efficiency Planet" as our obligation. By focusing on customers' needs and wants in order to contribute more our potentials, from now on, H.Stars will hand in hand with you to be a shining star in the foreseeable future. 
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H.Stars uphold to "Build a Win-win Social Platform,Let's People Dance" core concept, and "Customer Change Because of US" professionalism. Through H.Stars reputation,integrity pragmatic attitude and robust development, also the independent intellectual property rights,to create a multi-product chain. Modern production base and industrial chain ,with highly integrated,specialized manufacturing enterprises. Our products including cooling equipment,HVAC equipment,industrial cooling equipment,air handling equipment and accept special custom design like explosion-proof,anti-corrosion,purification,ultra-low temperature,high temperature hot water ,cold heat recovery,recycling,and energy saving. We can tailor-make special units to integrate to our equipment ,water pumps and buffer tank together as a package unit to satisfy customer's requirement to maintain its unique competitiveness and create desired value to customers . Industrial cooling equipment is H.Stars primary business,with the sophisticated equipment and high quality service, "H.Stars" brand was established. With regards to recognition and support from majority of our customers,good brand reputation and technology leadership have been maintained in the air conditioning and cooling industry.
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Latest News
  • Zero Pollution Heat Pump Project
    Zero Pollution Heat Pump Project
    Zero Pollution Heat Pump Project The first regional “coal to electricity” clean heating pilot demonstration project invested by Shanxi Environmental Protection (SEPG)and Shanxi Huannuo Environmental Protection Co., Ltd. in Linyou County, after 2 months of intense construction, currently, 5 heating stations and 2 single hanging points have been completed and put into use, providing clean heating services for the 260,000 ㎡ of users in the eastern part of Linyou County. 【Reporter: This is the clean energy heating station of HuiMing Community in Linyou County. The equipment behind me is the air source heat pump system. It mainly uses electrical energy to absorb heat from the air. Heating water temperature and Central heating after conversion . While achieving high-efficiency heating, this system also exerts its characteristics of environmental protection, energy saving and emission reduction. It can be said that it has basically achieved zero pollution. 】 Before 2018, the heating system of Linyou County was based on the central heating through underground thermal pipe network. Due to the old pipe network, insufficient flow and large heat loss in many places in the old city, heating quality and standards are difficult to meet the masses demand. This year, after Shanxi Environmental Protection Group implemented the “coal to electricity” clean heating pilot demonstration project in Linyou County, after more than a month of operation, residents generally reported that this winter heating is not only high temperature, but also the air quality has been greatly improved. 【Feng Zhigang, resident of Linyou county said: the temperature is good this year. It keeps around 20 degrees. You can't feel cold in here.】 【Ms. Li, resident of Linyou county: in terms of hygiene, last year's hygiene was not as good as this year's overall, last year the air was dusty, but this year the air is much cleaner than before. 】 Ma Xiang dong, Chairman of Shanxi Huannuo Environmental Protection Co., Ltd. told reporters that in the implementation of the “coal to electricity” clean heating pilot demonstration project in Linyou County, they passed the preliminary investigation and demonstration and expert review, based on the winter weather data of Linyou County and the old city. The building is free of external wall insulation and heat dissipation from the end radiator, which is solved by an air source heat pump system. The project is designed according to the distributed central heating method. A total of five clean heating energy stations will be built. Each heating season can save about 5712 tons of coal, reducing the emission of various harmful substances by more than 10,000 tons. The energy saving and environmental protection benefits are very significant. 【Ma Xiang dong, Chairman of Shanxi Huannuo Environmental Protection Co., Ltd.: If we use the "coal to electricity" clean energy heating system can ...
  • Comparison of advantages and disadvantages of 5 commonly used chillers
    Comparison of advantages and disadvantages of 5 commonly used chillers
    01 Piston type chiller Advantage: 1. The material is simple, the general metal material can be used, the processing is easy, and the cost is low; 2. The system device is simple, easy to lubricate, and does not require an exhaust device; 3. With multi-head, high-speed multi-cylinder, performance can be improved. Disadvantages: 1. Many parts, more wearing parts, complicated maintenance, frequent, high maintenance costs; 2. The compression ratio is low, and the cooling capacity of the single machine is small; 3. The adjustment performance of the single head part under partial load is poor, the cylinder is adjusted, and it cannot be adjusted steplessly; 4. It is a reciprocating movement up and down, and the vibration is large 5. The rated cooling capacity has a large weight index. 02 Screw type chiller Advantage: 1. Simple structure, less moving parts, less wearing parts.(only 10 percent of the piston type), low failure rate and long service life; 2. The circular motion is stable, there is no "surge" phenomenon during low load operation, low noise and low vibration; 3. The compression ratio can be as high as 20 and the EER value is high; 4. It is convenient to adjust, can be steplessly adjusted within the range of 10%~100%, high efficiency at partial load, and significant power saving; 5. Small size and light weight, it can be made as a stand type fully enclosed large capacity unit; 6. Not sensitive to wet strokes; 7. It is a positive pressure operation, and there is no problem of intrusion of outside air. Disadvantages: 1. The price is higher than the piston type; 2. The capacity of single unit  is smaller than the centrifugal type, and the rotation speed is lower than the centrifugal type; 3. The lubricating oil system is more complicated and consumes a lot of fuel; 4. Large-capacity unit noise is higher than centrifugal type; 5. Requires high machining accuracy and assembly accuracy. 03 Centrifugal chiller Advantage: 1. The impeller has high speed, large gas transmission volume and single machine has large capacity; 2. Less wearing parts, reliable work, compact structure, stable operation, low vibration and low noise; 3. The unit cooling capacity weight index is small; 4. The lubricating oil is not mixed in the refrigerant, and the heat transfer performance of the evaporator and the condenser is good; 5. The EER value is high, and the theoretical value can reach 6.99. 6. Easy to adjust, stepless adjustment within 10%~100%. Disadvantages: 1. The single-stage compressor will have a "surge" phenomenon at low load, but run smoothly at full load; 2. Strict requirements for material strength, processing accuracy and manufacturing quality; 3. When the operating condition deviates from the design working condition, the efficiency decreases rapidly, and the cooling capacity decreases with the evaporation temperature and decreases faster than the piston type; 4. Centrifugal negative pressure system, the outside air is easy to invade, there is a danger ...
  • What causes the water-cooled condenser temperature to be abnormally high?
    What causes the water-cooled condenser temperature to be abnormally high?
    What we are talking about here refers to water-cooled condenser, which is mainly used in water-cooled chillers. Its function is to condense the high-temperature refrigerant vapor discharged from the compressor into a liquid refrigerant, which is an important part of the refrigeration system to radiate heat to the surrounding environment. This equipment is one of the four major components of chiller. Its quality directly affects the cooling capacity and cooling efficiency. During the working process of the water-cooled chiller refrigeration system, the temperature of the outer surface of the condenser is generally close to the normal temperature, and it is not hot when touched by hand. Once the surface temperature is found to be too high, the cause should be identified and measures taken to eliminate it. Generally speaking, the causes that lead to rise of temperature in condenser are mainly due to the problem of cooling water. There are usually four cases: 1. The cooling water inlet and outlet pipes are incorrectly installed. The normal installation position is generally low inlet pipe, high outlet pipe, and “low inlet and high output”. If the inlet pipe position is high, the cooling water may not be fully filled in the condenser, and the heat transfer area will become smaller. The vapor is not effectively condensed, causing rise of temperature on condenser surface 2. The water quality of the cooling water is too bad. The fouling of inner wall of the cooling water pipe in condenser increases thermal resistance, affects heat exchange between refrigerant and cooling water, and reduces the heat transfer effect. This type of failure often occurs in chillers that are used for long periods of time and that are not regularly cleaned. The solution is to remove scale. 3. The cooling water is insufficient and the water pressure is not enough. The water-cooled condenser is latent heat released by the cooling water to take away refrigerant vapor condenser. Therefore, the cooling water pressure is not enough, the flow rate does not reach the rated requirement, the heat dissipation capacity is limited, and finally the temperature of the outer surface of the condenser rises. . 4. The temperature of the cooling water is too high, which is higher than the rated working temperature. The higher the temperature of the cooling water is, the smaller the temperature difference of refrigerant cooling and heat transfer amount are. The less effective cooling of the refrigerant is, the higher the surface temperature of the condenser will be.
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