Understanding Low Pressure and High Pressure in Refrigeration Systems

Refrigeration systems operate on the principles of thermodynamics, utilizing refrigerants that change states between liquid and gas to absorb and release heat. The system is characterized by two distinct pressure zones: low pressure (or evaporating pressure) and high pressure (or condensing pressure). Understanding these pressures is crucial for the efficient operation of refrigeration systems.

Low Pressure (Evaporating Pressure)

The low-pressure side of a refrigeration system includes components such as the evaporator and the suction line leading to the compressor. Here, the refrigerant exists primarily as a low-pressure gas. The key processes involved are:

• Evaporation: The refrigerant absorbs heat from the environment (e.g., from inside a refrigerator) and evaporates, transitioning from a liquid to a gas. This process occurs at low pressure, which allows the refrigerant to absorb heat effectively at lower temperatures12.
• Pressure Measurement: The evaporating pressure can be measured using a gauge placed between the metering device outlet and the compressor. Accurate readings are essential for diagnosing system performance1.

The evaporating pressure is critical because it dictates how effectively the refrigerant can absorb heat. As pressure decreases, the saturation temperature also decreases, allowing for cooling at lower temperatures

5.

High Pressure (Condensing Pressure)

The high-pressure side encompasses components such as the compressor discharge, condenser, and discharge line. The processes here include:

• Compression: The compressor takes in low-pressure gas from the evaporator and compresses it into a high-pressure gas. This compression increases both the pressure and temperature of the refrigerant, preparing it for heat rejection in the condenser24.
• Condensation: In the condenser, the high-pressure gas releases its heat to the external environment and condenses back into a liquid state. This phase change occurs at high pressure, which is necessary for effective heat transfer15.

The condensing pressure is measured anywhere between the compressor’s discharge valve and the entrance to the metering device. Proper monitoring ensures that the system operates within safe limits to prevent failures or leaks

3.

Key Differences Between Low and High Pressure

Feature	Low Pressure (Evaporating)	High Pressure (Condensing)
State of Refrigerant	Primarily vapor	Primarily liquid
Function	Absorbs heat	Releases heat
Measurement Location	Between metering device and compressor	Between compressor discharge and metering device
Pressure Range	Typically lower than atmospheric	Higher than atmospheric
Temperature Relation	Lower saturation temperature	Higher saturation temperature

Importance of Pressure Control

Maintaining appropriate pressure levels is vital for safe and efficient operation. Excessive pressures can lead to equipment failure or catastrophic events like refrigerant leaks or explosions

3. Therefore, components such as expansion valves or capillary tubes play critical roles in regulating these pressures by creating resistance to fluid flow, ensuring that refrigerants transition smoothly between high and low pressures throughout their cycle56.In summary, understanding low and high pressures in refrigeration systems is essential for their effective operation. These pressures dictate how refrigerants absorb and release heat, ultimately determining the efficiency of cooling systems.

Overview of Temperature Control in Refrigeration Systems

Temperature control plays a crucial role in the performance and efficiency of refrigeration systems, particularly in relation to compressor operation. The compressor is a vital component that significantly influences the overall energy consumption and effectiveness of the refrigeration cycle. Understanding how temperature affects compressor performance can lead to improved energy efficiency and system reliability.

Key Factors Influencing Compressor Performance

1. Coefficient of Performance (CoP)
The Coefficient of Performance (CoP) is a primary measure of the efficiency of refrigeration systems, defined as the ratio of useful cooling provided to the work input by the compressor. A higher CoP indicates better energy efficiency. The CoP is influenced by two main temperatures: the evaporating temperature (TeTe​) and the condensing temperature (TcTc​). Specifically, an increase in TeTe​ or a decrease in TcTc​ enhances the CoP, with each 1°C change in these temperatures resulting in a 2-4% variation in energy use for constant cooling output

1.2. Operating Pressures
Operating pressures are closely linked to temperature control. Higher operating pressures improve heat transfer rates, which enhances overall system efficiency and reduces energy consumption. Conversely, low operating pressures can lead to increased energy usage as the compressor must work harder to achieve desired cooling effects3. This relationship underscores the importance of maintaining optimal pressure levels for effective temperature control.3. Variable Speed Compressors
The implementation of variable speed compressors allows for dynamic adjustment based on cooling demands. This adaptability helps maintain optimal performance across varying load conditions, thus improving CoP at partial loads12. For instance, reducing compressor speed can lead to significant energy savings while still meeting cooling requirements2.

Strategies for Effective Temperature Control

1. Adjusting Evaporating and Condensing Temperatures
Practical measures to optimize TeTe​ and TcTc​ include:

• Improving evaporator performance: This can be achieved by ensuring proper sizing and minimizing fouling.
• Controlling condensing temperatures: Avoiding excessive head pressure control can enhance system efficiency by allowing lower condensing temperatures when conditions permit1.

2. Enhanced Control Systems
Advanced control strategies that monitor parameters such as two-phase length and superheat temperature can optimize compressor operation. These systems can dynamically adjust compressor speed to maintain desired cooling capacities while maximizing efficiency

2.3. Regular Maintenance
Regular maintenance of refrigeration systems is essential to ensure that all components, including compressors, operate efficiently under varying temperatures. This includes cleaning heat exchangers and ensuring that expansion valves are properly set to minimize superheating1.

Conclusion

Temperature control is integral to optimizing compressor performance in refrigeration systems. By understanding the relationships between evaporating and condensing temperatures, operating pressures, and compressor dynamics, significant improvements in energy efficiency can be achieved. Implementing advanced controls and maintaining optimal operating conditions are essential strategies for enhancing the overall performance of refrigeration systems.

In the food industry, effective freezing techniques are essential for preserving product quality, safety, and nutritional value. Various methods are employed in commercial refrigeration to achieve optimal freezing results. Here’s an overview of the best practices and tips for freezing techniques.

Common Freezing Methods

1. Blast Freezing

   • Description: This method involves circulating cold air over food products to rapidly remove heat. Cold air is blown from one end of the chamber while warm air is sucked from the other, passing through cooling coils that contain refrigerants15.
   • Advantages: Economical and effective for large batches of food; modern upgrades have led to quicker freezing times with technologies like Individual Quick Freezing (IQF)13.
   • Disadvantages: Slower than some advanced methods, leading to potential quality loss due to prolonged exposure to varying temperatures1.

2. Cryogenic Freezing

   • Description: Utilizes liquid nitrogen or carbon dioxide to freeze products at extremely low temperatures (around -90°C) almost instantaneously18.
   • Advantages: Rapid freezing minimizes ice crystal formation, preserving texture and flavor. Ideal for high-quality products such as seafood38.
   • Disadvantages: Higher operational costs compared to traditional methods.

3. Contact Freezing

   • Description: Involves placing food in direct contact with cold surfaces or plates, often using water as a freezing medium1.
   • Advantages: Efficient for bulk products and minimizes oxidation and dehydration1.
   • Disadvantages: Requires thawing of entire blocks even if only a portion is needed, which can compromise quality upon refreezing1.

Best Practices for Effective Freezing

• Rapid Freezing: Freeze food as quickly as possible after preparation to maintain freshness and minimize ice crystal formation. Ideally, food should not sit at room temperature for more than two hours before freezing9.
• Temperature Control: Ensure that freezers operate at safe temperatures (below -18°C) to effectively halt microbial growth and preserve food quality. Regularly check and calibrate thermostats69.
• Airflow Optimization: Maintain proper airflow within freezers by avoiding obstructions near evaporators. This ensures efficient cooling and uniform freezing rates across all products25.
• Proper Storage Techniques:

  • Keep freezers well-stocked to maintain thermal mass, which helps stabilize temperatures during door openings.
  • Organize food items to prevent cross-contamination and facilitate airflow around products49.

• Regular Maintenance: Conduct routine inspections of refrigeration systems, including cleaning condenser coils and checking refrigerant levels. Address any issues promptly to prevent breakdowns and ensure consistent performance6.

Conclusion

Implementing these freezing techniques and best practices in commercial refrigeration can significantly enhance food preservation efforts. By choosing the right freezing method, maintaining optimal conditions, and ensuring regular maintenance, businesses can deliver high-quality products while minimizing waste and maximizing efficiency.

The Importance of Regular Maintenance for Refrigeration Systems

Regular maintenance of refrigeration systems is crucial for ensuring their efficiency, longevity, and overall performance. This practice not only helps prevent breakdowns but also enhances food safety and reduces operational costs. Below are the key reasons why regular maintenance is essential for refrigeration systems.

1. Prevents Breakdowns and Reduces Repair Costs

Regular maintenance checks can identify and address minor issues before they escalate into major problems. This proactive approach minimizes the risk of unexpected breakdowns, which can lead to costly repairs and operational disruptions123. For instance, simple issues like clogged filters or low refrigerant levels can cause significant system failures if neglected7.

2. Ensures Food Safety

Refrigeration systems play a critical role in maintaining the safety and quality of food products. A malfunctioning system can lead to unsafe temperatures, resulting in food spoilage and potential health hazards for consumers. Regular maintenance helps ensure that refrigeration units operate within safe temperature ranges, thus safeguarding food quality and compliance with health regulations1610.

3. Enhances Energy Efficiency

Over time, dust and debris can accumulate in refrigeration systems, obstructing airflow and reducing efficiency. Regular cleaning of components such as coils and fans ensures optimal performance, leading to lower energy consumption and reduced utility bills. Efficient systems also contribute to a smaller carbon footprint, making regular maintenance an environmentally friendly choice356.

4. Extends Equipment Lifespan

Investing in regular maintenance significantly prolongs the lifespan of refrigeration equipment. By addressing minor issues promptly and maintaining system cleanliness, businesses can delay the need for expensive replacements and ensure that their equipment remains operational for longer periods234.

5. Minimizes Downtime

Unforeseen equipment failures can disrupt business operations, leading to revenue loss. Regular maintenance reduces the likelihood of sudden breakdowns, thereby minimizing downtime and ensuring that businesses can continue operating smoothly357. This is particularly important in commercial settings where refrigeration is critical.

6. Promotes Compliance with Regulations

Many industries are subject to strict regulations regarding food safety and equipment standards. Regular maintenance helps ensure compliance with these regulations, reducing the risk of fines or penalties associated with non-compliance due to equipment failures68.

Best Practices for Refrigeration Maintenance

To maximize the benefits of regular maintenance, consider implementing the following best practices:

• Schedule Routine Inspections: Engage licensed technicians for regular checks to identify potential issues early.
• Keep Areas Clean: Maintain cleanliness around refrigeration units to prevent debris from entering the system.
• Monitor Temperature and Humidity: Regularly check these levels to ensure optimal performance.
• Train Employees: Educate staff on proper usage and maintenance practices for refrigeration units12.

In conclusion, regular maintenance of refrigeration systems is not merely a routine task; it is an essential investment that ensures operational efficiency, food safety, and cost-effectiveness in the long run. By adhering to a structured maintenance schedule, businesses can safeguard their assets while promoting a safe environment for their customers.

Refrigerants play a crucial role in the efficiency of cooling systems, particularly in vapor compression refrigeration cycles. This analysis focuses on two commonly used refrigerants: R134A (tetrafluoroethane) and R600A (isobutane). Both refrigerants have distinct properties that influence their performance in various applications, including air conditioning and refrigeration.Cooling Capacity and Coefficient of Performance (COP)

• Cooling Capacity: R134A generally exhibits a higher cooling capacity compared to R600A. For instance, studies indicate that R134A has a cooling capacity of approximately 376.41 W, while R600A’s capacity is around 338.11 W1. This difference is significant when considering the size and efficiency of cooling systems.
• Coefficient of Performance (COP): The COP is a critical measure of a refrigerant’s efficiency, defined as the ratio of useful cooling provided to the work input required. R134A typically has a COP of about 3.01, which is higher than R600A’s COP of approximately 2.711. This indicates that R134A can provide more cooling per unit of energy consumed, making it more efficient under certain conditions.

Thermophysical Properties

• Flow Rate and Specific Heat: The flow rate for R134A is higher than that for R600A, which suggests that R134A has a lower evaporative specific heat1. This characteristic allows for more efficient heat absorption during the evaporation process.
• Operating Conditions: Both refrigerants operate effectively within different temperature ranges. For example, R600A tends to perform better at lower evaporation temperatures (between -25 °C and -10 °C), while R134A is versatile across a broader range of conditions2.

Environmental Impact

• Global Warming Potential (GWP): R134A has a higher GWP compared to R600A, which is considered more environmentally friendly due to its lower impact on global warming. The push towards using low-GWP refrigerants like R600A aligns with global efforts to reduce greenhouse gas emissions25.
• Safety Considerations: While R600A is less harmful to the environment, it is flammable, necessitating careful engineering to prevent risks associated with leaks or system failures5. In contrast, R134A is non-flammable but poses environmental concerns due to its GWP.

Applications and Trends

• Industry Adoption: Many modern refrigeration systems are transitioning from R134A to R600A due to regulatory pressures and environmental considerations. However, the choice between these refrigerants often depends on specific application requirements, including safety, efficiency, and environmental impact46.
• Future Outlook: As regulations tighten around high-GWP substances, the adoption of alternatives like R600A is expected to increase. Innovations in system design will be crucial to safely harnessing the benefits of flammable refrigerants while maintaining efficiency.

In conclusion, both R134A and R600A have unique advantages and limitations that affect their performance in cooling systems. While R134A offers higher efficiency and cooling capacity, R600A presents a more environmentally friendly option with specific safety considerations. The choice between these refrigerants will increasingly depend on balancing performance needs with environmental responsibilities.

Selecting the appropriate compressor for your refrigeration system is essential for maximizing efficiency, performance, and longevity. This guide outlines the key factors to consider, enabling you to make an informed choice tailored to your specific requirements.

1. Assess Your Refrigeration Requirements

Load Requirements: Start by determining the cooling load necessary for your application. Calculate the required capacity based on the size of the space and the type of products stored. For instance, perishable items like meat require lower temperatures than fruits and vegetables.Temperature Range: Identify the specific temperature range needed for your products. Different items have varying sensitivities to temperature changes, so select a compressor that can maintain consistent conditions.

2. Calculate Compressor Capacity

Capacity Measurement: Compressor capacity is measured in BTUs (British Thermal Units) or horsepower (HP). To determine the required capacity, consider:

• Space Volume: Measure the length, width, and height of the area to find its cubic footage.
• Insulation Quality: Better insulation reduces the load on the compressor, potentially allowing for a smaller unit.

Compressor Types: Understand the different types of compressors available:

• Single-stage Compressors: Suitable for applications that consistently operate at full load.
• Multi-stage Compressors: Ideal for heavy-duty tasks requiring higher efficiency and better compression ratios.

3. Evaluate Efficiency and Performance

Energy Efficiency Ratings: Look for compressors with high energy efficiency ratings. A more efficient motor helps reduce operating costs and energy consumption over time.Starting Torque Requirements: Consider starting torque needs based on your system design. Compressors with low starting torque (LST) work well with capillary tubes, while those needing high starting torque (HST) are better suited for systems with non-equalized pressures.

4. Consider Environmental Impact

With growing environmental regulations, opt for compressors compatible with eco-friendly refrigerants such as R290 or R600A. These refrigerants not only minimize environmental impact but also enhance overall energy efficiency.

5. Review Manufacturer Specifications

Consult manufacturer specifications and selection tools to ensure you choose a compressor that aligns with your needs. Many manufacturers provide charts and software to assist in selecting compressors based on refrigerant type, suction line temperature, and condensing temperature.

6. Seek Professional Advice

If you’re uncertain about your selection or need help sizing a compressor, consult refrigeration professionals or engineers who can provide expert guidance based on their experience.

Conclusion

Choosing the right compressor is critical for optimizing your refrigeration system’s performance and efficiency. By carefully assessing your requirements, calculating capacity, evaluating energy efficiency, considering environmental impact, and consulting professionals when needed, you can select a compressor that meets your operational demands while contributing to sustainability. This revised guide emphasizes clarity and effectiveness while maintaining essential information for readers seeking to optimize their refrigeration systems.

Understanding the Differences Between R134A and R600A in Refrigeration Systems

In the realm of refrigeration, selecting the right refrigerant is crucial for efficiency, environmental impact, and safety. Two commonly used refrigerants are R134A and R600A, each with distinct properties and applications. This article delves into their differences, advantages, and disadvantages to help you make informed decisions in refrigeration systems.

Chemical Composition

• R134A: Also known as tetrafluoroethane, R134A is a synthetic refrigerant composed of carbon, fluorine, and hydrogen atoms. Its chemical formula is CF3CH2FCF3​CH2​F 1.
• R600A: In contrast, R600A (isobutane) is a naturally occurring hydrocarbon with a simpler structure, consisting of only carbon and hydrogen. Its chemical formula is C4H10C4​H10​ 1.

Efficiency and Performance

• Cooling Efficiency: R600A is known for its superior cooling performance compared to R134A. Systems utilizing R600A can achieve the same cooling effect with less energy consumption, making it a more efficient option 13.
• Pressure Characteristics: R600A operates at lower evaporating and condensing pressures than R134A. This characteristic can lead to reduced energy requirements for compressors when using R600A 3.

Environmental Impact

• Global Warming Potential (GWP): One of the most significant differences between these two refrigerants lies in their environmental impact. R134A has a GWP of 1430, meaning it has a considerable potential to contribute to global warming. In contrast, R600A boasts a GWP of just 3, making it an environmentally friendly choice 12.
• Ozone Depletion Potential (ODP): Both refrigerants have zero ODP, meaning they do not harm the ozone layer. However, the low GWP of R600A makes it a preferred option in light of increasing environmental regulations 2.

Safety Considerations

• Flammability: A critical safety distinction is that R600A is flammable (classified as A3), which poses risks if not handled properly. Systems using R600A must be designed with safety measures to mitigate fire hazards. On the other hand, R134A is non-flammable and classified as A1, making it safer in terms of fire risk 13.
• Solubility and Compatibility: R134A has higher solubility in water compared to R600A, which can lead to corrosion issues in refrigeration systems if moisture is present. In contrast, R600A has good compatibility with most metals used in refrigeration systems 13.

Applications

• R134A: Commonly used in automotive air conditioning systems and various commercial refrigeration applications due to its stability and safety profile.
• R600A: Often found in domestic refrigerators and freezers due to its efficiency and lower environmental impact. Its use is becoming more prevalent as manufacturers seek eco-friendly alternatives 23.

Conclusion

In summary, while both R134A and R600A serve vital roles in refrigeration systems, their differences are significant. R600A offers higher efficiency and a much lower environmental impact but comes with flammability risks that must be managed. Conversely, R134A provides a safer profile but at the cost of higher energy consumption and greater environmental concerns.As industries continue to shift towards sustainable practices, understanding these differences will be essential for choosing the right refrigerant for specific applications. This article provides an overview of the key differences between R134A and R600A in refrigeration systems, highlighting their chemical properties, efficiency, environmental impact, safety considerations, and applications.

Centrifugal pumps are widely used devices for moving fluids, and they consist of several critical components that work together to perform this function. Here are the main parts of a centrifugal pump:

Key Components of a Centrifugal Pump

1. Casing (Volute):

   • The casing, also known as the volute, is the outer shell that houses the pump components. It contains the liquid being pumped and converts kinetic energy into pressure by slowing down the fluid as it exits the impeller. The design can be either single-piece or split into upper and lower sections, depending on the pump’s configuration14.

2. Impeller:

   • The impeller is the rotating component responsible for imparting energy to the fluid, increasing its velocity and pressure. It consists of blades or vanes that push the liquid outward from the center to the periphery as it rotates25. Impellers can be categorized into three types: open, semi-open, and closed, each suited for different applications1.

3. Shaft:

   • The shaft connects the impeller to the motor or engine, transmitting torque to facilitate rotation. It is a critical structural component that supports various rotating parts of the pump46.

4. Bearings:

   • Bearings support the shaft and help maintain its alignment during operation. They reduce friction between moving parts and can absorb both radial and axial forces25. Different types of bearings may be used, including anti-friction and sleeve bearings.

5. Mechanical Seals:

   • These seals prevent leakage of the pumped liquid along the shaft. They can be packing rings or mechanical seals designed to withstand high pressures and temperatures45.

6. Suction and Discharge Ports:

   • These ports are essential for fluid entry (suction) and exit (discharge) from the pump. Proper design ensures efficient flow into and out of the pump system56.

7. Backplate:

   • The backplate acts as a seal for the impeller, providing structural support and helping to maintain pressure within the casing1.

8. Diffuser (optional):

   • In some designs, a diffuser may be included to further enhance efficiency by directing fluid flow more gradually after it exits the impeller, thereby optimizing pressure conversion46.

9. Suction Pipe and Foot Valve:

   • The suction pipe allows fluid to enter the pump from a source, while a foot valve can prevent backflow when the pump is not in operation3.

10. Discharge Pipe and Valve:

    • These components channel the pumped fluid away from the pump to its destination while controlling flow rates and pressure3.

Understanding these components is crucial for anyone involved in selecting, operating, or maintaining centrifugal pumps, as each part plays a vital role in ensuring efficient performance and reliability in fluid transport applications.

Homemade Compressor Using a Refrigerator Motor and Gas Cylinder

To build a homemade compressor using a refrigerator motor and a gas cylinder, you can follow a relatively simple process, which is described in various videos and tutorials available online. Below are the main steps, materials needed, and essential safety precautions for this construction.

Necessary Materials

• Refrigerator Motor or Air Conditioner
• Gas Refrigerant Cylinder (preferably R410A)
• Pneumatic Hose
• Clamps
• Electrical Wires
• Connections for the Cylinder
• Check Valve (optional but recommended)

Necessary Tools

• Pliers
• Screwdriver
• Soldering Iron (for connections)
• Multimeter (for electrical testing)

Step-by-Step Instructions

1. Disassemble the Motor: Remove the motor from the refrigerator, ensuring that all wires are disconnected. It’s important to check if the motor is in good condition before using it.
2. Prepare the Cylinder: The cylinder should be cleaned and prepared to receive the connections. Make appropriate holes for the hoses and install the necessary connections.
3. Assemble the Connections: Connect the pneumatic hose to the cylinder and the motor. Use clamps to ensure that the connections are tight and do not leak air.
4. Electrical Installation: Connect the electrical wires to the motor, making sure to follow instructions on how to wire the motor without a relay, if necessary. A multimeter can be useful to check for continuity in the connections.
5. Test the Compressor: After assembly, perform a test to check if the compressor is functioning correctly. Monitor the pressure in the cylinder and check for any leaks.
6. Finalization: After testing, finalize the assembly by organizing the wires and securing the cylinder on a stable base if necessary.

Safety Considerations

General Safety

• Personal Protective Equipment (PPE): Always wear safety goggles, gloves, and ear protection when working with tools and machinery.

Electrical Safety

• Disconnect Power: Ensure that all electrical power is disconnected before working on any wiring.
• Check Connections: Use a multimeter to verify that there are no short circuits before powering on the motor.

Handling Gas Cylinders

• Proper Ventilation: Work in a well-ventilated area when handling refrigerant gases to avoid inhalation of harmful fumes.
• Avoid Leaks: Regularly check all connections for leaks. If you detect any refrigerant leak, stop work immediately and ventilate the area.

Pressure Safety

• Pressure Relief: Make sure that there is a pressure relief valve installed on your system to prevent overpressure situations.
• Do Not Exceed Rated Pressure: Always operate within the manufacturer’s recommended pressure limits for both the motor and gas cylinder.

Emergency Preparedness

• Know Emergency Procedures: Be aware of what to do in case of an electrical shock or gas leak.
• Fire Extinguisher: Keep a fire extinguisher nearby when working with flammable materials or gases.

Final Considerations

A compressor made with a refrigerator motor can be very useful for various applications, such as painting, inflating tires, and other uses that require compressed air. It’s a great way to recycle materials and create a practical tool for your workshop or home.Always remember to take safety precautions when working with electricity and high pressures, especially when handling gas refrigerant cylinders. Your safety should always be your top priority!

Coolstore.pl is an online shop based in Poland that specializes in the supply of refrigeration and air conditioning components. Here are the key details about the store:

Company Overview

• Establishment: Cool Store was founded in March 2001, focusing on providing comprehensive supplies and servicing materials for refrigeration and air conditioning systems2.
• Location: The company operates from Silesian Voivodeship, Poland, and caters to both local and international markets4.

Product Offerings

Coolstore.pl offers a wide range of products, including:

• Refrigeration Components: Various parts necessary for refrigeration systems.
• Air Conditioning Units: Equipment and components for air conditioning setups.
• Tools and Accessories: Includes hydraulic tools, vacuum pumps, and other related equipment.

Compressors for Refrigeration

number of products: 310Sortby name – ascendingView30

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ASPERA (EMBRACO)Akumulatorowa kamera inspekcyjna M12 IC AV3-201C 4933451367

75,63 € gross / pc.

61,49 € net / pc.

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DANFOSSSprężarka Maneurop SZ 084-4VI

3 813,00 € gross / pc.

3 100,00 € net / pc.

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DANFOSSSprężarka Danfoss R134a BD 50 F

822,87 € gross / pc.

669,00 € net / pc.

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RecommendedASPERA (EMBRACO)Sprężarka Aspera R290 NT 6224 U

318,82 € gross / pc.

259,20 € net / pc.

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ASPERA (EMBRACO)Sprężarka Aspera R290 EMX 6165 U

115,13 € gross / pc.

93,60 € net / pc.

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ASPERA (EMBRACO)Compressor Aspera NEK6210GK

160,29 € gross / pc.

130,32 € net / pc. Add to cart

ASPERA (EMBRACO)Sprężarka Aspera R290 NEU 2155 U

180,66 € gross / pc.

146,88 € net / pc. Add to cart

ASPERA (EMBRACO)Compressor Aspera R290 NEK 2150 U

181,55 € gross / pc.

147,60 € net / pc. Add to cart

ASPERA (EMBRACO)Sprężarka Aspera R290 NEK 6181 U

157,64 € gross / pc.

128,16 € net / pc.

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ASPERA (EMBRACO)Compressor Aspera R134a EMT22HLP

59,34 € gross / pc.

48,24 € net / pc.

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ASPERA (EMBRACO)Compressor Aspera R404A EMT2121GK

135,50 € gross / pc.

110,16 € net / pc.

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DANFOSSCompressor Danfoss R404a TL4CL 195B0021

239,85 € gross / pc.

195,00 € net / pc.

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DANFOSSCompressors Danfoss R134a PL35G 195B0245

197,94 € gross / pc.

160,93 € net / pc.

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ASPERA (EMBRACO)Compressor Aspera R134a EMT36HLP

80,59 € gross / pc.

65,52 € net / pc.

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ASPERA (EMBRACO)Compressor Aspera R404A EMT2125GK

139,04 € gross / pc.

113,04 € net / pc.

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DANFOSSCompressors Danfoss R404a FR6CL

208,03 € gross / pc.

169,13 € net / pc. Add to cart

ASPERA (EMBRACO)Compressor Aspera R134a EMT43HLP

71,83 € gross / pc.

58,40 € net / pc.

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ASPERA (EMBRACO)Compressor Aspera R404A NEK2117GK

110,70 € gross / pc.

90,00 € net / pc.

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DANFOSSCompressor Danfoss R404a FR7.5CL 195B0398

282,90 € gross / pc.

230,00 € net / pc.

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DANFOSSCompressors Danfoss R134a TL3G 195B0006

150,55 € gross / pc.

122,40 € net / pc.

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ASPERA (EMBRACO)Compressor Aspera R134a EMT49HLP

86,79 € gross / pc.

70,56 € net / pc.

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DANFOSSCompressor Danfoss R404a FR8.5CL 195B0038

214,27 € gross / pc.

174,20 € net / pc. Add to cart

DANFOSSCompressors Danfoss R134a TL4G 195B0008

157,18 € gross / pc.

127,79 € net / pc. Add to cart

ASPERA (EMBRACO)Sprężarka Aspera R290 NEU 2168 U

214,32 € gross / pc.

174,24 € net / pc. Add to cart

ASPERA (EMBRACO)Compressor Aspera R134a EMT60HLP

67,31 € gross / pc.

54,72 € net / pc.

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ASPERA (EMBRACO)Compressor Aspera R404A NEK2125GK

147,90 € gross / pc.

120,24 € net / pc. Add to cart

DANFOSSCompressor Danfoss R404a NL7CLX 195B0350

297,91 € gross / pc.

242,20 € net / pc.

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DANFOSSCompressors Danfoss R134a TL5G 195B0011

162,24 € gross / pc.

131,90 € net / pc.

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ASPERA (EMBRACO)Compressor Aspera R404A NEK2134GK

168,26 € gross / pc.

136,80 € net / pc. Add to cart

ASPERA (EMBRACO)Compressor Aspera NEK 1116Z

115,13 € gross / pc.

93,60 € net / pc. Add to cart