This 10k ohm Type II thermistor is the direct replacement for the Aaon OE231 temperature sensor

this is an ASME boiler relief valve specifically designed for space heating boilers

When used as a retrofit for R-22 systems

which eliminates the need for separate pick-up tubes or additional control panels

always verify if your application requires a separate start capacitor for the full start-assist circuit

Spence E-1 1/4 Valve R-410A This 10k ohm Type IIThe Spence E 1 1 4 Valve is a cast iron pressure reducing valve engineered for high demand steam, gas, and vapor applications. This 1 1 4 inch E Main Valve features a normally closed design with packless construction, ensuring frictionless operation and an extended service life in rigorous mechanical rooms. Built with balanced metal diaphragms and a protected main spring, it achieves ANSI FCI 70 2 Class IV shutoff, effectively preventing seat leakage