we know that some common types of throttling devices are
Hard -throttling devices
Capillary valve
Constant pressure throttling devices
Thermostatic expansion valve
Float expansion valve
so here throttling devices commonly used in refrigeration and air-conditioning because
To reduce the coolant pressure, the high pressure of the refrigerant from the condenser is necessary to reduce the evaporation to obtain evaporation at the right temperature
To meet the refrigerated load, the throttling valve flows through the coolant to cool the load at high temperatures.
