ZheJiang NOF Chemical Co. Ltd.
   manager@frioflor.com        +86-150-8823-9500 / +86-198-8885-5658
Home » Import FAQ

An Encyclopedia on Refrigerant Gas Knowledge

  • Q Guide To Import Refrigerant Gas

    A
    Steps of importing refrigerant gas from us.

    1. We agree on refrigerant gas price, net weight per package etc. and then we will send you a proforma invoice for your payment.
    2. Payment: normally we accept 30% as deposit and 70% balance against copy of B/L. Payment by L/C at sight is also negociable.
    3. After receiving payment of 30%, we will send refrigerant gas cylinder and carton designs for your confirmation and begin production.
    4. We will send you detailed photos of refrigerant gas after the goods is ready then we will arrange the shipment by sea.
    5. We will send you photos of refrigerant gas loading to verify that the goods is correctly loaded into container.
    6. After shipment of goods, we will send all drafts of documents for your confirmation.
    7. Then we send you the copy of B/L and commercial invoice by email for your payment of 70% balance.
    8. After receipt of all the payment, we will send all original documents to your mailing address.
    9. You will use all these documents for collection of refrigerant gas.

    Some important notice:

    1. You must get the import permit of R22 gas from your government before you buy R22 from us.
    2. If you are importing to Euroepan EU market, you must have the F-Gas Quota.
  • Q How Do I Choose the Package of Refrigerant Gas

    A For shipment of refrigerant gas, there are 5 kinds of most popular package in use:
    1. Disposable cylinder
    2. Small canister / bottle
    3. Refillable cylinder
    4. Refillable Ton Tank
    5. Refillable ISO Tank.

    You can print your own logo or design onto the disposable cylinder, small canister or refillable cylinder for brand and better selling consideration.
    If you buy a large quantity and have the service of refilling station at your own country, the package of ton tank or ISO tank is more profitable as
    you can return ton tank or ISO tank to us. During the whole period some guarantee fee is required to ensure the returning of ton tank or ISO tank.

    If you want to know the exact refrigerant gas net weight of each package and the loading quantity into a 20ft container, please drop us emails.
  • Q How to Ensure the Quality Purity and After-Service

    A 1. How to Ensure the Quality and Purity of Refrigerant Gas?

    a. We have our own labs, we make "analysis of components" for each batch of refrigerant gas shipment to ensure the purity and other components meet the industry standard.
    b. We also welcome customer's own visit or third-party inspection.
    c. From FAQ "Guid to Import Refrigerant Gas", you can clearly see that we always report to you about the production process.

    2. How do I get the after-service

    If there really occurs some problem, which is inevitable for all countries, we are always available at every minute of our working time.
    You can reach us by our company website www.frioflor.com, or by Facebook by search frioflor, or by whatsapp/wechat/ telehone call etc..
    Our sales team is professional and they speak English, Spanish, French, Russian, Chinese... So you can freely communicate with us.

    We are here to do business with you to enlarge refrigerant gas industry together.
  • Q Introduction of Refrigerant Gas R22

    A Introduction of R22 gas

    R22 is a member of the Freon family and belongs to the category of hydrochlorofluorocarbons. As the most widely used medium and low temperature refrigerant today, refrigerant R-22 is widely used in reciprocating compressors as a refrigerant in industrial, commercial, and household air conditioning systems.
    It can also be used as aerosol spray for pesticides and spray paint, and it can also be used to produce fire extinguishing agent 1211; it is the basic raw material for the production of various fluorine-containing polymer compounds.

    Physical Properties
    Molecular Formula  CHCLF2 
    Molecular Weight 86.47
    Boiling Point  101.3KPa(° C) -40.80 
    Freezing Point  101.3KPa (° C) -160.00 
    Density 30° C(kg/m3) 1174.2
    Critical Temperature (° C)  96.2
    Critical Pressure (MPa) 4.99
    ODP 0.034
    GWP  1700

    The main purpose
     
    As the most widely used medium and low temperature refrigerant today, R-22 is mainly used in household air conditioners, commercial air conditioners, central air conditioners, mobile air conditioners, heat pump water heaters, dehumidifiers, refrigerated dryers, cold storage, food freezing equipment, marine refrigeration equipment, Industrial refrigeration, commercial refrigeration, refrigeration condensing units, supermarket display cabinets and other refrigeration equipment.

    Difluoromonochloromethane can also be used as a raw material for the production of polytetrafluoroethylene resin, an intermediate for fire extinguishing agent 1121, and as a physical foaming agent for polymers (plastics).
     
    Used in reciprocating compressors, as refrigerants in industrial, commercial, and domestic air-conditioning systems; it can also be used as aerosol propellant for pesticides and spray paint, and it can also be used to produce fire extinguishing agent 1211; it is the production of various fluorine-containing polymers The basic raw material of the compound.
     
    R22 belongs to the HCFC refrigerant. According to the Montreal Protocol, it will be completely phased out before 2030.
    The main environmentally friendly alternatives: R404A, R410A, R290, R23, R407C, R411A, R417A, R1270.

    Major international brands: DuPont, Honeywell, Arkema, Frioflor etc. However, because developed countries have already phased out R22 ahead of schedule, the production of this product is no longer allowed in their own countries, so the so-called imported R22 sold on the market is actually domestic OEM production.

    It is generally used in air conditioners or a two-machine cascaded first stage, as the high-temperature end refrigerant, which has greater refrigeration strength than general refrigerants.

    Quality Index
    Purity more than 99.93%
    Water content  ≤0.001% 
    Acidity ≤0.00001% 
    Evaporation residue  ≤0.01% 
    Appearance  Colorless and clear 
    Odor  Odorless 

    Refrigerant R22 packaging
     
    Disposable steel bottle packaging:
    1. 13.6kg/bottle, 22.7kg/bottle;
    2. reusable steel bottle packaging (recycling and packaging steel bottles): 400kg/bottle, 800kg/bottle.

    Refrigerant R22 storage and transportation
    Refrigerant R22 cylinders are pressurized containers. They should be stored away from fire, heat, and direct sunlight. They are usually stored in a cool, dry and ventilated warehouse; they should be loaded and unloaded with care to prevent damage to the cylinders, valves and other accessories. 
     
    What refrigeration oil matches refrigerant R22?
    The refrigerating oils usually used with refrigerant R22 are: Suniso 3GS, 4GS, 5GS, KunLun 3GS, 4GS, 5GS, ICEMATIC SW220, CP-4214-320, LUNARIA KT15, 22, 32, 46, 56, Capella WF68, etc.; What kind of refrigerating oil is finally used in different equipment and different application places should follow the recommendations of the refrigeration compressor and refrigeration (air-conditioning) equipment manufacturers, or determine the use of the same design and technical requirements according to the specific conditions of the refrigeration compressor and refrigeration equipment. 
  • Q Introduction of Refrigerant Gas R134A

    A Introduction

    R134a (1,1,1,2-tetrafluoroethane) is one of the most widely used medium and low temperature environmentally friendly refrigerants. It has good comprehensive performance, making it a very effective and safe R12 (dichloro two Fluoromethane) can be used in most fields where R12 refrigerant is used.

    R-134a (1,1,1,2-tetrafluoroethane) is a kind of non-chlorine atom, does not damage the ozone layer, and has good safety performance (non-flammable, non-explosive, non-toxic, non-irritating, non-corrosive) refrigerant, its cooling capacity and efficiency are very close to R-12 (dichlorodifluoromethane, freon), so it is regarded as an excellent long-term alternative refrigerant. R-134a is currently internationally recognized as the best environmentally friendly substitute for R-12. It does not destroy the ozone layer at all. It is an environmentally friendly refrigerant recognized and recommended by most countries in the world. It is also the current mainstream environmentally friendly refrigerant. It is widely used in the initial installation and maintenance of new refrigeration and air-conditioning equipment. [1] . R134a has very low toxicity and is non-flammable in the air. The safety category is A1, which is a very safe refrigerant.

    Physical Properties
    Molecular Formula  CH2FCF3
    Molecular Weight 102.03
    Boiling Point  -26.1
    Freezing Point  101.3KPa (° C) -96.60
    Density 30° C(kg/m3) 1188.1
    Critical Temperature (° C)  101.1
    Critical Pressure (MPa) 4.06
    ODP 0
    GWP  1300

    Main Application
     
    R-134a is the most widely used medium and low temperature environmental protection refrigerant. Due to the good comprehensive performance of R-134a, It is a very effective and safe alternative to R-12, which is mainly used in most fields where R12 refrigerant is used, including: refrigerators, freezers, water dispensers, automobile air conditioners, central air conditioners, dehumidifiers, cold storage, commercial refrigeration, It can also be used in refrigeration equipment such as ice water machine, ice cream machine, freezing and condensing unit, etc., and can also be used in aerosol propellants, medical aerosols, insecticide propellants, polymer (plastic) physical foaming agents, and magnesium alloy protection Gas etc. R-134a can be widely used as a refrigerant in automobile air conditioners, refrigerators, central air conditioners, commercial refrigeration and other industries, and can be used in medicine, pesticides, cosmetics, and cleaning industries.

    Quality Index
    Purity  ≥99.90% 
    Water content  ≤0.001% 
    Acidity ≤0.00001% 
    Evaporation residue  ≤0.01% 
    Chloride content N/M
    Appearance  Colorless and clear 
    Odor  Odorless 


  • Q Introduction of Propane Refrigerant Gas R290

    A
    Basic Information of R290 Propane Gas

    R290 is a new type of environmentally friendly refrigerant, mainly used in central air conditioners, heat pump air conditioners, household air conditioners and other small refrigeration equipment. R290 (propane), also known as propane, has excellent thermal performance, low price, and R290 is compatible with ordinary lubricating oil and mechanical structural materials, ODP=0, GWP is small, does not need to be synthesized, and does not change the content of natural hydrocarbons , Has no direct impact on the greenhouse effect. Propane has a large refrigeration capacity per unit volume, which is very suitable for small rotary compressors. The main physical properties of propane are very similar to R22. The R22 system can be used. The original machine and production line are not modified, and propane can be filled directly, which is a direct substitute. Considering the cost of CFC replacement, propane is particularly suitable for developing countries.
     
       Currently, R290 has been used in domestic heat pump water heaters and air conditioning systems in Germany. Wolf Laborato-ries Limited has produced R290 household refrigerators. DANFOSS is also developing R290 household refrigerators.
     
     Physical properties of R290
     
       At -25℃, the pressure of R 290 is similar to that of R22, which is higher than R1 34a and lower than R404A. The standard boiling point of R290 is similar to R22, and the critical temperature is also close to R22, but the exhaust temperature of R290 is lower than that of R22. Therefore, the pressure of R290 is lower than R22. In other words, the suction temperature of R290 can be higher and the evaporation temperature can be lower. some. At 45°C condensing temperature, 32°C suction temperature and no subcooling, the volumetric cooling capacity of R290 is similar to that of R22, which is 1.5 times that of R134a. It is 2.5 to 3 times that of R600a, which means that for household refrigerators with the same cooling capacity, the R290 refrigerator refrigeration system has a smaller structural size, and the overall space occupied by the refrigerator is reduced.

    Physical Properties
    Molecular Formula CH3CH2CH3
    Molecular Weight 44.1
    Boiling Point  ℃ -42.1
    Freezing Point N/M
    Critical Temperature (℃)  96.6
    Critical Pressure (MPa) 4.248
    ODP 0
    GWP  3.3
     
    The safety performance of R290
     
    The disadvantage of using R290 as a refrigerant is the flammability of R290. The compressor, condenser, evaporator, pipeline and other components of the refrigeration system may cause the leakage of working fluid, and the temperature controller, compressor relay, lighting, etc. Electronic components such as defrost buttons can be sources of ignition. Therefore, the maximum charge of R290 in the refrigerator should be controlled at about 150g. In order to ensure safe operation, the refrigeration system and control components should be arranged in different spaces. Install a protector and flame-retardant relay on the compressor. Control ventilation to avoid local concentration accumulation, and often use gas sensors to detect leaks. The R290 refrigeration system should be closed, and leak detection should be strictly carried out before charging the refrigerant.
     
    R290 refrigeration system performance
     
    The theoretical COP values ​​of R290, R600a and R134a are higher than those of R22 at the evaporating temperature of -25°C and the condensing temperature of 45°C, without subcooling and high superheat; the theoretical COP values ​​of JR290, R600a and R134a at low superheat Lower than R22. The COP values ​​of R290 and R134a are similar. Just like R134a, R404A and R600a, the superheat of the suction is very important to the performance of the R290 refrigeration system, which can improve the COP of the refrigeration system, while R22 has little effect. For the R290 refrigerator refrigeration system, because R290 has a high specific heat of hot steam, it can have a superheat temperature of 20°C to 32°C, which can increase the COP of the 290 refrigerator.

    Quality Index
    Purity  ≥ 99.90% 
    Sulfur content ppm by weight less than 1.0
    Water content ppm by weight less than 10
    Acidity ppm by weight less than 1.0
    Evaporation residue  ≤ 0.01% 
    Appearance  Colorless and clear 
    Odor  Odorless 
     
     Conclusion  
       R290 (propane) has excellent thermal performance, low price, large refrigeration capacity per unit volume, small size, physical properties very similar to R22, and it is a direct substitute. Taking corresponding safety protection measures has a good application prospect for environmental protection and energy saving.
  • Q Introduction of ISOBUTHANE Refrigerant Gas R600a

    A
    1. Introduction to R600a
     
    R600a refrigerant: alias R600a, Chinese name isobutane, English name isobutane, trade name Reflube 600a
     
    Application: refrigerant;
     
    Chemical formula: C4H10;
     
    Type: Hydrocarbon refrigerant;

    2. Application of R600a
    It is mainly used to replace R12 and R134a refrigerants in refrigerators, freezers, and other small refrigeration equipment; because R600a is flammable, it is usually only used in low-temperature refrigeration equipment with a small amount of liquid. It is also often used as a mixed refrigerant. Two components; R600a is compatible with traditional lubricants;
     
    High-purity isobutane is mainly used as standard gas and the preparation of special standard mixed gas;
     
    Used in the synthesis of isooctane, as a gasoline octane improver, used in the production of isobutylene, propylene, methacrylic acid, and used as a refrigerant.
     
    3. Physical Properties of R600a
    Physical Properties
    Molecular Formula (CH3)2CHCH3
    Molecular Weight 58.123
    Boiling Point  ℃ -11.7
    Freezing Point N/M
    Density 30° C(kg/m3) 221
    Critical Temperature (℃)  134.9
    Critical Pressure (MPa) 3.648
    ODP 0
    GWP  3

    4. Quality Index of R600a
    Quality Index
    Purity  ≥ 99.90% 
    Sulfur content ppm by weight less than 1.0
    Water content ppm by weight less than 10
    Acidity ppm by weight less than 1.0
    Evaporation residue  ≤ 0.01% 
    Appearance  Colorless and clear 
    Odor  Odorless 

    5. R600a refrigerant packaging (for reference only)
    Disposable steel bottle packaging: 6.5kg/bottle, 11.5kg/bottle
     
    Reusable steel bottle packaging (recycled packaging steel bottle): 60kg/118L, 200kg/400L, 400kg/800L,470kg/926L
     
    6. R600a refrigerant storage and transportation
     
    (1) R600a storage
     
    R600a refrigerant cylinders are pressure vessels. They should be stored away from fire, heat sources, and direct sunlight. They are usually stored in a cool, dry and ventilated warehouse;
     
    R600a is stored separately from oxidants, combustibles or combustibles, and aluminum. Remember to store them together.
     
    The storage area should be equipped with leakage emergency treatment equipment
     
    Pay attention to the product name and the date of acceptance during acceptance, and use advanced warehouses first;
     
    (2) R600a transportation
     
    You must wear the safety helmet on the cylinder when transporting the cylinder. Place the steel cylinders horizontally with the mouth of the cylinder facing the same direction. Do not store them crosswise;
     
    Please load and unload lightly during transportation to prevent damage to accessories such as cylinders and valves.
     
    In summer, it should be transported in the morning and evening to prevent sun exposure and away from heat sources;
     
    It is forbidden to drop off during railway and road transportation;
     
    Do not mix with oxidizers, combustibles or combustibles, active metals, etc.;
  • Q Introduction of Refrigerant Gas R410a

    A Basic Introduction of R410a Refrigerant Gas:

    R410A:
    It is a new type of environmentally friendly refrigerant, does not destroy the ozone layer, the working pressure is about 1.6 times that of ordinary R22 air conditioners, and the cooling (heating) efficiency is high. R410A new refrigerant is composed of two quasi-azeotropic mixtures R32 and R125 each with 50%, mainly composed of hydrogen, fluorine and carbon elements (expressed as hfc), which is stable, non-toxic, and superior in performance. At the same time, since it does not contain chlorine, it will not react with ozone, that is, it will not destroy the ozone layer. In addition, the performance of air conditioners using new refrigerants will also be improved. R410A was once recognized internationally as the most suitable refrigerant to replace R22, and it has been popularized in Europe, America, Japan and other countries. R410A replaces the global trends in major international markets and the outlook for its use and the dynamics of entering the international market.

    Physical Properties

    R410A, is a kind of mixed refrigerant, it is a mixture composed of 50% R32 (difluoromethane) and 50% R125 (pentafluoroethane). Its advantage is that it can be used according to specific requirements, for various properties, such as Taking flammability, capacity, exhaust temperature and efficiency into consideration, a refrigerant is tailored.
    R410A is colorless, non-turbid, volatile, boiling point -51.6℃, freezing point -155℃; its main characteristics are:
    (1) Does not destroy the ozone layer. Its molecular formula does not contain chlorine, so its ozone depletion potential (ODP) is 0. The global warming factor (GWP) is 2025.
    (2) Very low toxicity. The allowable concentration is 1000 ppm as R22.
    (3) Non-flammable. The flammable polarity in the air is zero.
    (4) High chemical and thermal stability
    (5) The water solubility is almost the same as R22.
    (6) It is a mixed refrigerant, composed of two refrigerants
    (7) It is not compatible with mineral oil or alkylbenzene oil. (Compatible with POE[ester lubricant] and PVE[ether lubricant])

    Physical Properties
    Molecular Weight 72.58
    Boiling Point  101.3KPa(° C) -51.6
    Freezing Point N/M
    Density 30° C(kg/m3) 1038
    Critical Temperature (° C)  72.5
    Critical Pressure (MPa) 4.95
    ODP 0
    GWP  2000

    Future Prospect of R410a

    As people's awareness of environmental protection increases, people have higher and higher requirements for product environmental protection. Compressor refrigerants range from R12, R22, R134a, R407C to R410A, and people’s efforts to environmental protection have not changed. R410A is not the end of the development of environmentally friendly refrigerants but a new starting point. R410A does not harm the ozone layer, but has a higher greenhouse effect (GWP is 1730). People have begun to start with the greenhouse effect again, and introduced more environmentally friendly and efficient refrigerant compressors. R32 has a higher greenhouse effect (GWP is 670) and R290 (GWP is 3.3).

    Quality Index
    Purity  ≥99.90% 
    Water content  ≤0.001% 
    Acidity ≤0.00001% 
    Evaporation residue  ≤0.01% 
    Chloride content ≤0.0001%
    Appearance  Colorless and clear 
    Odor  Odorless 

  • Q Introduction of Refrigerant Gas R404a

    A
    Basic Introduction of Refrigerant Gas R404a
     
    R404A is a mixture of HFC125, HFC-134a and HFC-143. The ratio is R404A = 44% R125 + 4% R134A + 52% 143A. It is a colorless gas at room temperature, and a colorless and transparent liquid under its own pressure. R-404A is suitable for new commercial refrigeration equipment, transportation refrigeration equipment or renewal equipment at medium and low temperatures. Closest to R-502, this refrigerant is suitable for all environments where R-502 can operate normally.

    Product name: R404A (R-404A)

    Product Category: HFC

    Chemical composition: pentafluoroethane/trifluoroethane/tetrafluoroethane mixture

    Refrigerant R404A, alias R404A, product names include SUVA HP62, SUVA 404A, Genetron 404A, etc. As R404A belongs to the HFC-type non-azeotropic environmentally friendly refrigerant (completely does not contain ozone-depleting CFC, HCFC), it is currently recognized and recommended by most countries in the world as the mainstream low-temperature environmentally friendly refrigerant. Re-added during installation and maintenance. It complies with the standards of the US environmental protection organization EPA, SNAP and UL, and complies with the A1 safety level category of the American Society of Heating, Refrigeration and Air-Conditioning Engineers (ASHRAE) (this is the highest level and harmless to humans).


    Physical Properties

    Physical Properties
    Molecular Formula CHF2CF3/CF3CH2F/CH3CF3   
    Molecular Weight 97.6
    Boiling Point  101.3KPa(° C) -46.60
    Freezing Point
    Density 30°C(kg/m3) 1017.2
    Critical Temperature (°C)  72.1
    Critical Pressure (MPa) 3.74
    ODP 0
    GWP  3800

    Quality Index

    Quality Index
    Purity  ≥99.90% 
    Water content  ≤0.001% 
    Acidity ≤0.00001% 
    Evaporation residue  ≤0.01% 
    Chloride content N/M
    Appearance  Colorless and clear 
    Odor  Odorless 

    Application of R404a Refrigerant

    As a widely used medium and low temperature refrigerant today, R404A is often used in cold storage, food freezing equipment, marine refrigeration equipment, industrial low temperature refrigeration, commercial low temperature refrigeration, transportation refrigeration equipment (refrigerated trucks, etc.), refrigerated condensing units, supermarket display cabinets Wait for refrigeration equipment.

    Refrigerant R404A is the most common industry standard refrigerant (usually low temperature refrigeration system) to replace Freon R22 and R502 in newly installed refrigeration equipment. R404A is the closest to the operation of R-502, and it is suitable for all R-502 that can operate normally. Environment, R404A is recognized and used by most refrigeration equipment manufacturers in the world. However, because R404A is different from R502 and R22 in physical and chemical properties, theoretical cycle performance, and compressor oil, the after-sales maintenance of refrigeration equipment initially installed as R502 and R22 refrigerants, if you need to add or replace refrigerants, still Only R502 and R22 can be added, usually R404A cannot be used to replace R502 and R22 directly (that is, exchange-type replacement is usually not possible).

  • Q Introduction of Refrigerant Gas R407c

    A Basic Introduction of Refrigernat Gas R407c

    R407c is a mixture of R32 refrigerant and R125/refrigerant plus R134a refrigerant in a certain proportion. It is an environmentally friendly refrigerant that does not destroy the ozone layer.

    R407C has very similar characteristics and performance to R22, so it has become a long-term alternative to R22 and is used in various air conditioning systems and non-centrifugal refrigeration systems.
    R407C can be used in the original R22 system without redesigning the system. It only needs to replace a few parts of the original system, and replace the mineral refrigerating oil in the original system with a lubricating oil (POE oil) that is miscible with R407C, and then it can be directly filled R407C, realize the environmental protection replacement of the original equipment.
    Since R407C is a mixed non-azeotropic working fluid, in order to ensure that its mixed composition does not change, R407C must be filled in a liquid state. If refrigerant leakage occurs in the R407C system and the performance of the system changes significantly, the remaining R407C in the system cannot be recycled and reused. The remaining R407C refrigerant in the system must be emptied and recharged with new R407C refrigerant.

    Physical Properties

    Physical Properties
    Molecular Formula CH2F2 CF3CHF2 CH2FCF3 
    Molecular Weight 86.2
    Boiling Point  -43
    Freezing Point not determinded
    Critical Temperature (° C)  86.74
    Critical Pressure (MPa) 4.619
    ODP 0
    GWP  1700

    Quality Index
     
    Quality Index
    Purity  ≥99.90% 
    Water content  ≤0.001% 
    Acidity ≤0.00001% 
    Evaporation residue  ≤0.01% 
    Chloride content N/M
    Appearance  Colorless and clear 
    Odor  Odorless 


    Application of Refrigerant Gas R407c

    R407C is a ternary non-azeotropic refrigerant introduced as a substitute for R22. In actual replacement, you only need to replace the lubricating oil, change its dryer and other minor parts. In order to improve the easy decomposition of ester oil into residues, additives are often added to the system. When in use, in order to give full play to its advantages, it is best to choose a counterflow heat exchanger. In addition, the area of the condenser and the flow rate of the cooling medium also increase. R407c also has the characteristics of cleanliness, low toxicity, non-combustibility, and good cooling effect, and is widely used in the air conditioning industry.

QUICK LINKS

PRODUCT CATEGORY

CONTACT US

 New Youth Mansion,Wucheng Area,Jinhua City,Zhejiang,China • 
 +86-150-8823-9500 / +86-198-8885-5658
 exportyk

GET IN TOUCH

Contact us
Copyrights  2020 ZheJiang Nof Chemical Co. Ltd.  All rights reserved  Technology By Leadong.com  | Sitemap