Sporlan 109487 FVE-1/2-ZP Expansion Valve

The Sporlan 109487 FVE-1/2-ZP Expansion Valve is a precision-engineered thermostatic expansion valve (TXV) designed for commercial refrigeration and small air conditioning systems. This externally equalized valve features a robust brass bar stock body and utilizes a ZP charge, specifically calibrated for low-temperature applications required in walk-in freezers and food storage. With a nominal capacity of 1/2 ton, the FVE-1/2-ZP ensures precise superheat control by modulating refrigerant flow based on evaporator load, effectively preventing liquid flood-back to the compressor. The valve is equipped with 3/8" x 1/2" SAE flare connections and a 30-inch capillary tube, allowing for flexible mounting and sensor placement. Its field-proven stainless steel diaphragm and replaceable power element provide long-term reliability under varying head pressures. Designed for use with R-22 refrigerant, this component is an essential HVACR replacement part for technicians maintaining high-efficiency refrigeration cycles.

• Precise Superheat Regulation: Maintains consistent evaporator performance even under fluctuating load conditions.
• Durable Brass Construction: Features a high-strength brass bar body and stainless steel internal parts for resistance against corrosion and erosion.
• Serviceable Design: Accessible internal components allow for cleaning and inspection, extending the service life of the refrigeration system.
• Integrated Protection: Includes a removable 100 mesh inlet strainer to capture contaminants and prevent orifice fouling.
• Pressure Limit Protection: The ZP thermostatic charge provides a Maximum Operating Pressure (MOP) feature to protect the motor from overloading during startup.

What is the benefit of the external equalizer on the FVE-1/2-ZP?
The external equalizer compensates for the pressure drop across the evaporator, ensuring that the expansion valve accurately senses the pressure at the coil outlet for more precise superheat management compared to internal versions.

Can this valve be used with refrigerants other than R-22?
While originally optimized for R-22, compatibility with R-22 alternatives like R-422D or R-407C depends on the specific pressure-temperature characteristics of the system; always verify the thermostatic charge matches the refrigerant being used.

Why is the ZP charge important for low-temperature applications?
The ZP charge is specifically designed to provide a pressure limit (MOP) to prevent suction pressure from exceeding a safe level during pulldown, which protects the compressor from excessive torque and potential failure.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.