Refrigerated Vans: How Do They Work?

For businesses who offer frozen products that need to be shipped to clients and customers, refrigerated vans are an essential addition to the company. Also known as fridge vans, these types of vehicles feature a special refrigeration system that keeps the food or product cold, safe, and healthy to eat. And aside from this, they also serve as a great promotional tool, especially when they are decorated with the company’s name and logo.

We commonly see refrigerated vans on the road and ready-converted refrigerated vans for sale in the streets, and many of us are getting amazed about their existence. Truly, if not for them, we would never have good quality foods to eat, and safe refreshments to drink. But do you also wonder how do they work? How, despite the high temperature outside, fridge vans are still able to maintain the quality and freshness of the goods they transport?

Fridge vans have a similar mode of operation to the fridge we found at home. They have insulated and airtight compartment, as well as a condenser system that is responsible in removing heat from the inside; and thus, maintain the temperature of the products. The only difference between the fridge vans and household fridge is the quality layer of their insulation. Since fridge vans are commonly used outside, where heat is much intense, they generally have thicker quality layer of insulation. This prevents the heat from entering into the vehicle.


refrigerated vans


Of course, removing heat and maintaining the temperature inside the vehicle don’t work by the insulation, alone, although it’s very crucial in the success of the operation. Fridge vans have many parts that assist in the process of removing heat and maintaining temperature, and these include the following:

  • This is considered as the heart of the refrigeration system. It draws gaseous refrigerant in, compresses it to raise its pressure, and then pushes it into the coils. The high-pressured hot refrigerant passes through the condenser.
  • The high-pressured hot refrigerant discharged from the compressor passes through the condenser, which is a network of pipes containing a special coolant system. The coolant system produces cold air, which passes through condenser, absorbing enough heat that causes the refrigerant to condense. The liquid refrigerant then flows down the liquid line and into the evaporator.
  • When the liquid refrigerant passes into the evaporator, it flows through a metering valve that sets the flow of liquid refrigerant into the low pressure side. When the pressure drops, it turns into vapor. As this happens, cools air passes over the coil, absorbing heat and causing the temperature drop at the desired set point. The refrigerant then goes back to the compressor, where the cycle starts all over again.

This is the very basic description of how fridge vans refrigeration system works. While there may be a slight difference when it comes to how other complex refrigerators work, the process is almost just the same. Of course, in order to keep your fridge van operation at its maximum potential, you have to maintain and care for it properly. We recommend that you perform regular preventative maintenance and cleaning.

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