SANHUA RFKH04-2.9-30 Thermostatic Expansion Valve 1/2 R134A Solder Internal Pressure Equalization
 
RFKH series thermostatic expansion valves are used to adjust mass flow of refrigerant into the evaporator while controlling the refrigerant´s superheat at the outlet of the evaporator. They can be used for various refrigerants under all working conditions. Typical applications are refrigeration systems like freezers, ice makers, dehumidifiers as well as air conditioners and heat pumps at various evaporation temperature ranges.
 
Features
Stainless steel capillary and sensing bulb
Exchangeable valve orifice, easy to stock holding, convenient for capacity match and repair
Thermal bulb utilizes cross charge technology, providing consistent superheat degree over the whole evaporation temperature range
Valves with MOP function can be provided to assure reliable compressor operation
Applicable in a wide evaporation temperature range
Reliable and consistent performance of superheat control
 
General Specifications
Applicable for all common HCFC, HFC, HFO refrigerants such as: R22, R407C, R404A, R507A, R134a, R404A, R410A, R407A, R407F, R448A, R449A, R452A, R450A, R513A
Ambient temperature min./max.: -35°C / +55°C
Medium temperature TS min./max.: -40°C / +70°C
Max. operating pressure PS: 4.6 MPa (46 bar)
Installation position:
Preferably valve head upwards
Flow direction from inlet A to outlet B
Certifications: UL/CSA and PED declaration
 
RFKH Series Datasheet
RFKH Instructions