Articles Posted in the " Expansion Valves " Category

  • Refrigeration-Fill in blanks-expansion valves

    Refrigeration-Fill in blanks-expansion valves

      Refrigeration-Fill in blanks-expansion valves FILL IN THE BLANKS FOR THE REFRIGERATION EXPANSION VALVES Various expansion valves control the flow rate of refrigerant and also ————the pressure.  Expansion valve is fitted between the———–and the—————–.  Temperature of the refrigerant decreases in the expansion because of decrease in———-temperature.  Boiling point of the refrigerant increases with the —————–of […]


  • Thermostatic and Automatic Expansion valves

    Thermostatic and Automatic Expansion valves

     Thermostatic and Automatic Expansion valves Expansion valve in a refrigeration system is very important as it decreases the pressure as well temperature from condenser outlet conditions to evaporator inlet conditions. Capillary tube, automatic – thermostatic expansion valves, low side and high side float valves are used as expansion devices as per cooling requirements. Each has […]


  • * Refrigeration equipments-1

    * Refrigeration equipments-1

    Refrigeration equipments-1 Dry evaporators are used in domestic units where as flooded evaporators are in commercial and industrial units. Liquid suction heat exchanger ensures super heated vapor to compressor and sub-cooled refrigerant to the expansion valve. Refrigeration equipments includes compressors, condensers, evaporators,expansion valves, piping and various controls. TYPES OF EVAPORATORS: Dry expansion type and flooded […]


  • mcq: Refrigeration Expansion Valves

    mcq: Refrigeration Expansion Valves

    mcq: Refrigeration Expansion Valves  Capillary tube is the expansion valve used in refrigeration and Air Conditioning  units of cooling capacity (a) < 3 tons (b) > 3 tons (c) <10 tons (d) None (Ans:a) Thermostatic expansion valve is used used in refrigeration and Air Conditioning  units of cooling capacity (a) < 3 tons (b) = […]


  • * Short Interview Question Answers on Expansion Valves & Controls

    * Short Interview Question Answers on Expansion Valves & Controls

    Short Interview Question Answers on Expansion Valves & Controls   List the various types of expansion devices with their practical applications. Various types of expansion devices 1.Capillary Tube Very small diameter ( fraction of a mm) tube with no moving parts thus extremely simple and least expensive: Used in small refrigeration units like refrigerators, Window air conditioners, […]