York S1-1TVM2B1 Expansion Valve 340155-7026 Key Benefits for the Contractor:

Key Benefits for the Contractor: High-Temperature Durability: The Viton seals and Class F coil insulation allow for operation in elevated ambient and media temperatures without seal failure or coil burnout

the 4PST configuration is frequently used by technicians to switch all three legs of a 3-phase motor

Key Benefits Dual-Voltage Compatibility: Operates seamlessly on both 208V and 230V electrical systems common in commercial shop environments

high-heat combustion chambers

offering a drop-in solution for legacy systems requiring a proportional pneumatic thermostat or remote sensing probe

York S1-1TVM2B1 Expansion Valve 340155-7026 Key Benefits for the Contractor:The York S1 1TVM2B1 Expansion Valve is a technical grade OEM thermal expansion valve designed for precise superheat control in R22 systems. Engineered for 3 ton HVAC systems, this TXV features 5 8" x 5 8" connections and a 30 inch capillary tube, ensuring sufficient reach for diverse evaporator coil configurations. As a thermostatic expansion valve (TXV), it utilizes an external equalizer to monitor suction line pressure accurately, preventing liquid