OEM Compatibility: Genuine York S1-1TVMBA2 ensures exact fitment for 1

while the 30 Amp Resistive rating applies to non-inductive loads like electric heat strips

maintaining the original engineering specifications for system efficiency and duty cycle performance

Environmental Resilience: The potted enclosure protects internal circuitry from moisture and high-vibration stresses common in agricultural heating

Siemens Building Technology 257-02033 Valve Assembly R-407C OEM Compatibility: Genuine York S1-1TVMBA2The Siemens 257 02033 is a 2 way normally open pneumatic valve assembly engineered for precise proportional control in heating and cooling applications. Built with a 1 2 inch NPT x Union Male connection, this unit features a 0. 63 Cv rating and utilizes equal percentage flow characteristics to ensure linear heat transfer across varying load conditions. The forged brass body is paired with brass trim and a high performance pneumatic actuator featuring