Sanhua RFKH03E-4.8-309 Expansion Valve R404A (Int. Eq. Solder) MOP

Precisely balancing the amount of refrigerant entering the evaporator in refrigeration systems, the Sanhua RFKH03E-4.8-309 Thermostatic Expansion Valve offers efficient and stable expansion control thanks to its internally equalized (internal equalizer, solder) design for R404A and its MOP charge. With its brass body, copper capillary tube and sensing element (bulb), it is a durable and long-lasting solution.

Precise Superheat Control and Compressor Protection

The MOP (Maximum Operating Pressure) charge limits the suction pressure at initial startup or under high load, preventing the compressor from being overloaded. The sensing element detects the temperature at the evaporator outlet and automatically adjusts the valve opening to maintain a constant superheat value. This increases the energy efficiency of the system and reduces compressor failures caused by liquid floodback.

Key Technical Specifications

The main features of the product are listed below:

• Brand: Sanhua
• Product Model: RFKH03E-4.8-309
• Sanhua Model Code: 41.03.020
• Refrigerant: R404A
• Equalization Type: Internal equalizer (internally equalized, solder)
• Charge Type: MOP (Maximum Operating Pressure) limited
• Body Material: Brass
• Connection: Solder-type inlet/outlet, with protective caps
• Equipment: Copper capillary tube and sensing element (bulb)
• Application: Commercial refrigeration, cold room and evaporator applications