Copeland Comfort Control (Alco) 058038 Valve

The Alco Controls 058038 (Model TER35-HW100) is a heavy-duty, take-apart thermostatic expansion valve engineered for massive 35-ton capacity systems. Designed specifically for R22 refrigerant, this TXV features a medium temperature charge, making it a staple for large-scale commercial refrigeration and air conditioning units. The valve utilizes a 10-foot capillary tube for flexible bulb placement, ensuring precise superheat control even in complex evaporator configurations. Built with a laser-welded stainless steel power element, the TER35-HW100 provides exceptional durability against corrosion and pressure spikes. As a "less flange" model, it allows contractors to reuse existing flanges or select specific brazing ODF/ODM connections for a custom fit. Its balanced port design compensates for varying head pressures, maintaining stable liquid injection from full load down to 10% capacity. This valve is the professional choice for technicians servicing large chillers, rooftops, and industrial process cooling where reliable refrigerant flow regulation is non-negotiable.

• High-Capacity Performance: Rated for 35 tons, providing consistent flow for large-scale commercial evaporators.
• Precise Superheat Management: Factory-preset for optimal refrigerant metering to prevent liquid slugging and maximize heat transfer.
• Serviceable Take-Apart Design: Modular construction allows for easy cleaning, inspection, or orifice replacement without brazing.
• Extended 10' Capillary: Long capillary tube length offers the reach needed for remote bulb mounting on large suction lines.
• Enhanced System Stability: The HW medium temperature charge is specifically calibrated for R22 systems operating in standard refrigeration ranges.

Is the flange included with this model?
No, the 058038 is a "less flange" model. You must use your existing flange or purchase a compatible Alco T-series flange separately to complete the installation.

Where should the sensing bulb be mounted?
For large suction lines (greater than 7/8"), the bulb should be mounted at the 4 or 8 o’clock position on a horizontal run. Always insulate the bulb after mounting to ensure the thermal expansion valve is reading gas temperature rather than ambient air.

Can I use this for R407C retrofits?
While designed for R22, some technicians utilize TER series valves for R407C conversions; however, significant superheat adjustment is required due to the pressure-temperature differences between the refrigerants.

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.