Sporlan 109228 FV-1/2-C Expansion Valve

The Sporlan 109228 FV-1/2-C is a precision-engineered thermostatic expansion valve (TXV) designed for small-capacity refrigeration and air conditioning systems. This model is specifically calibrated for R-22 refrigerant and features a nominal capacity of 1/2 ton, providing critical metering control to maintain optimal evaporator superheat. Built with a durable brass bar-stock body and flare connections (3/8 x 1/2 SAE), this valve ensures a leak-proof interface in high-pressure environments. The 30-inch capillary tube allows for versatile sensing bulb placement, while the internally equalized design simplifies installation by eliminating the need for an external equalizer line. It utilizes a Type C thermostatic charge, making it suitable for standard refrigeration applications where temperature consistency is paramount. With an externally adjustable superheat stem, technicians can fine-tune system performance in the field to adapt to specific load conditions. The Sporlan FV-1/2-C expansion valve remains a flagship choice for contractors requiring reliable refrigerant flow control and long-term mechanical stability in legacy R-22 equipment.

• Precision Metering: Delivers accurate 1/2 ton capacity flow control to optimize heat transfer efficiency.
• Internal Equalization: Streamlines piping by using internal pressure sensing, ideal for systems without significant evaporator pressure drops.
• Field Serviceable: Features externally adjustable superheat and a replaceable thermostatic element for simplified maintenance.
• Rugged Construction: Brass body with silver-soldered joints and a stainless steel diaphragm for maximum corrosion resistance.
• Universal Compatibility: Standard 3/8 x 1/2 flare connections fit most commercial and residential R-22 configurations.

Is the Sporlan FV-1/2-C compatible with R-407C?
While the FV series is primarily designed for R-22, some technicians use it with R-407C due to similar pressure-temperature characteristics; however, for best results, verify the thermostatic charge matches the specific refrigerant and application temperature range.

Does this valve require an external equalizer line?
No, this specific model (FV-1/2-C) is internally equalized. If your evaporator has a high pressure drop or a distributor, you should typically source the "EFE" or "EVE" series which features an external equalizer.

How do I adjust the superheat on this Sporlan TXV?
Remove the seal cap at the base of the valve to access the adjustment stem. Turning the stem clockwise increases the spring pressure, which increases the superheat and reduces refrigerant flow.

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.