R410A series thermal expansion valve
NRF (E) and RT (E) are dedicated to R410A series thermal expansion valves, which are integrated expansion valves suitable for fields such as air conditioning, commercial refrigeration, transportation air conditioning, and refrigeration.

Characteristics
Applicable refrigerant: R410A
Maximum working pressure: 45bar
Evaporation temperature range: -40 ℃ -+15 ℃
Static superheat adjustment range: 1K to 8K
Maximum opening superheat: 8K
It can provide MOP (motor overload protection) function, with a maximum protection pressure of 170psi.  

NRF (E) and RT (E) are dedicated to R410A series thermal expansion valves, which are integrated expansion valves suitable for fields such as air conditioning, commercial refrigeration, transportation air conditioning, and refrigeration.
Overheating regulation
The factory set static superheat is 4K, with an adjustable range of 1K to 8K. Adjustment method: Unscrew the bottom sealing nut, rotate the adjustment rod clockwise for one turn (close small), increase the static superheat by 1.5K, and rotate the adjustment rod counterclockwise for one turn (open large), decrease the static superheat by 1.5K.
Pressure balance type: The model with the letter "E" after it is the external balance form, and the model without the letter "E" after it is the internal balance form.

Nominal cooling capacity and external dimensions

The nominal cooling capacity is based on the following operating parameters: condensation temperature: Tc=38 ℃; Evaporation temperature: Te=4 ℃; Liquid refrigerant entering the valve: TL=37 ℃; Subcoling degree: Tsub=1k; Factory static superheat setting: ss=4K;