Browse Refrigeration Compressors
Refrigeration compressors are used in a wide range of cooling systems, from commercial freezers and refrigeration equipment to industrial cooling applications.
At Diamond Compressors, we supply new refrigeration compressors for a variety of system requirements. Our range includes models suitable for low, medium, and high evaporating temperatures, depending on the compressor model and refrigerant used.
Available options include reciprocating, scroll, screw, and rotary designs. Scroll and screw compressors can also offer quieter operation, making them a suitable choice for applications where noise levels need to be kept low.
Our compressors are available throughout the UK and worldwide. UK customers can also benefit from our lift & shift service, helping with the safe handling and movement of equipment.
Whether you are replacing an existing compressor or specifying a new refrigeration system, browse our range below or contact our team for help choosing a suitable model.
About Refrigeration Compressors
A refrigeration compressor is an important part of a cooling system. It draws low-pressure refrigerant vapour from the evaporator, compresses it, and sends it to the condenser at a higher pressure.
This helps the refrigerant release the heat it has absorbed from the cooled space. The refrigerant then moves through the rest of the system before returning to the compressor, allowing the cooling cycle to repeat.
Refrigeration compressors are available in several designs. Each type works differently and is suited to different applications, cooling capacities, and system requirements.
- Reciprocating compressors: Use pistons that move back and forth inside cylinders to compress refrigerant. They are available in a range of sizes and are used in commercial and industrial refrigeration systems. Commercial reciprocating compressors are commonly used where reliable cooling performance is required.
- Screw compressors: Use two rotating screws to continuously compress refrigerant. They are commonly used in larger refrigeration and cooling systems that require continuous operation.
- Scroll compressors: Use two spiral-shaped scrolls to compress refrigerant. They are compact and efficient and can offer quieter operation and a lower noise level.
- Rotary compressors: Use rotating components to compress refrigerant. Rotary compressors are commonly used in smaller refrigeration and air conditioning systems. Rotary vane compressors are one example of this type of compression design.
- Centrifugal compressors: Use high-speed rotating components to increase refrigerant pressure. They are generally used in larger systems where high cooling capacity is required.
Refrigeration compressors can also be supplied in different configurations, including hermetic, semi-hermetic, and open designs.
The right compressor will depend on the requirements of your system, including the required cooling capacity, refrigerant type, evaporating temperature, condensing temperature, power consumption, and available space.
Refrigeration Compressor FAQs
A refrigeration compressor is a key component in a refrigeration system. It compresses refrigerant vapour and increases its pressure, allowing the refrigerant to move around the system and transfer heat from one area to another.
The compressor forms part of the vapour compression cycle, which is used in many refrigeration and air conditioning systems. It draws low-pressure refrigerant vapour from the evaporator and sends higher-pressure refrigerant towards the condenser.
Refrigeration compressors are available in different designs, including reciprocating, scroll, screw, rotary, and centrifugal compressors. The most suitable type depends on cooling capacity, refrigerant, and system operating conditions.
A refrigeration compressor draws low-pressure refrigerant gas from the evaporator and compresses it to a higher pressure. The refrigerant then moves to the condenser, where it releases heat and changes from a gas into a liquid.
The liquid refrigerant passes through an expansion valve or other expansion device before returning to the evaporator. Here, it absorbs heat from the area being cooled, and the cycle starts again.
The main types of refrigeration compressors include:
- Reciprocating compressors
- Screw compressors
- Scroll compressors
- Rotary compressors
- Centrifugal compressors
Each design works differently and suits different capacities, applications, and operating conditions. For example, reciprocating compressors are often used in commercial refrigeration, while screw and centrifugal compressors are generally associated with larger cooling systems.
Yes. Refrigeration compressors are available for different operating ranges, including low, medium, and high evaporating temperatures.
No. Compressor compatibility depends on the model, refrigerant, operating pressure, temperature range, and system design.
Always check the manufacturer’s specifications before selecting a compressor for a particular refrigerant. Using an unsuitable compressor could affect system performance, power consumption, and reliability.
Our refrigeration compressors are available as new units only. We supply compressors throughout the UK and worldwide.
For UK orders, we also offer a lift & shift service to help ensure your equipment is safely handled and moved.
The best compressor depends on the requirements of your refrigeration system. Important factors include:
- Required cooling capacity
- Refrigerant type
- Evaporating temperature
- Condensing temperature
- Power supply, including voltage, frequency & phase
- Compressor speed
- Power consumption
- Available space
- System design and application
Compressor capacity is rated against specific operating conditions, including the refrigerant, evaporating temperature, and condensing temperature. Check these details before selecting a new compressor or replacement.
You should also check whether the system requires a hermetic reciprocating compressor, semi-hermetic compressor, scroll compressor, screw compressor, or another design.
If you are unsure which model is suitable, our team can help you find an appropriate option.
Each product page includes a Reference number. You can quote this number when emailing or calling us, helping our team quickly identify the compressor you’re interested in.
You can also use the contact form on the relevant product page to send an enquiry.
If you’re unsure which compressor you need, our team can help you find a suitable compressor or condensing unit. Just get in touch.