TXV or Thermostatic Expansion Valve | Refrigeration for HVAC

by | Refrigeration | 8 comments

TXV or Thermostatic Expansion Valve are used in air conditioners and heat pumps to meter refrigerant.

TXV or Thermostatic Expansion Valve

The TXV or Thermostatic Expansion Valve is preferred over other refrigeration metering devices because it only allows a specified amount of refrigerant to flow based on demand. Any type of refrigeration metering device creates a pressure drop in the refrigerant and with a pressure drop of the refrigerant a temperature drop also occurs.

This temperature is necessary to drop the refrigerant down to temperature lower than ambient temperatures inside the structure being cooled. This allows the refrigerant to absorb the heat contained in the air passing over the evaporator coil. (more…)

Boiler Water Loops | Hydronic Piping Systems

by | Boilers | 12 comments

hot water boiler piping
Boiler Water Loops - In boiler water loops there are different ways to arrange the piping depending on the budget at installation time and how efficient and balanced you want the hydronic piping system to be when the job is complete. Some piping arrangements require more pipe upon initial installation. However, they are easier to balance and provide even heat throughout all the radiators or baseboards.
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