The Armstrong International D23324

this unit is designed with an Open High contact structure

this unit is UL listed for a maximum rated pressure of 650 psig

A common failure point in older units involves pitted or carbon-tracked contacts that cause intermittent "no-fire" conditions or erratic cycling

Durable Construction: Features an all-steel case and PENN dual pressure bellows designed to withstand high-cycle environments in commercial applications

Johnson Controls VG2831VM Valve R-410A The Armstrong International D23324The Johnson Controls VG2831VM is a heavy duty 4 inch 3 way mixing globe valve designed for precise flow control in demanding hydronic systems. This unit features an ANSI Class 125 flat faced flange connection and a robust cast iron body, engineered to handle significant pressure drops in commercial HVACR applications. With a flow coefficient of 157 Cv and a modified linear flow characteristic, it ensures stable modulation for chilled water, hot water,