Emerson Alco 029429 Cage Assembly

The Emerson Alco 029429 Cage Assembly, also identified as the X9117B9B, is a critical internal replacement component for large-capacity TER Series Thermal Expansion Valves. Engineered for take-apart construction, this double-ported cage allows technicians to perform field service without removing the valve body from the line, ensuring minimal downtime in high-stakes commercial refrigeration and HVAC systems. It is optimized for balanced port performance, providing stable superheat control even under varying head pressures or bi-flow applications often found in large heat pump assemblies.

This cage assembly supports a wide range of refrigerants with specific nominal capacities, including 25 tons for R-12, 31 tons for R-134a, and 45 tons for both R-22 and R-407C. In systems utilizing R-404A, R-507, or R-502, it maintains a consistent 27-ton rating. Built for heavy-duty cooling, it features a maximum working pressure of 450 psig. When installing, professional contractors should ensure the torque bolts are tightened to the manufacturer-specified 300 in-lb to maintain seal integrity and prevent refrigerant bypass.

• Interchangeable design allows for rapid capacity changes or maintenance within the TER valve body.
• Double-ported cage architecture provides superior control at low loads and maintains efficiency in bi-flow operations.
• Multi-refrigerant compatibility enables standardized stocking for R-22, R-407C, and R-134a systems.
• Take-apart construction facilitates fast field service and internal component inspection.

• Is the 029429 cage identical to the X9117B9B? Yes, these part numbers refer to the same Emerson Alco cage assembly used in TER series valves.
• What is the torque specification for the flange bolts? For proper seating of the cage assembly, flange bolts should be torqued to 300 in-lb.
• Can this be used in bi-flow applications? Yes, the TER valve type with this cage is designed to support bi-flow capability in heat pump systems.

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.