Trane VAL8718 TXV 318518-761 The T-4000-610 focuses on the

The T-4000-610 focuses on the internal adaptor and pipehead connection

Safety Integration: Allows for the seamless addition of a high limit switch to thermocouple circuits without specialized magnet heads

oxidation and ceramic degradation eventually require a full White-Rodgers flame sensor replacement to prevent intermittent system shutdowns

it is best practice for contractors to follow the signal flow direction consistent with the existing system architecture for ease of future maintenance

High Thermal Capacity: Optimized for R134a systems

Trane VAL8718 TXV 318518-761 The T-4000-610 focuses on thePrecision refrigerant metering is the backbone of system efficiency, and the Trane VAL8718 is engineered to maintain that balance in demanding 4 Ton HVAC systems. As an OEM Trane expansion valve, this thermostatic expansion valve (TXV) is designed specifically for R410A refrigerant applications, ensuring the evaporator coil receives the exact mass flow required to manage superheat effectively. With a 3 8" x 1 2" sweat connection, this valve provides a