NIST Traceable Calibration: Built to meet rigorous industry standards (ANSI-Z540-1)

System Protection: Minimizes the risk of combustion blower strain and secondary heat exchanger fouling

Can the Armstrong 811 handle water hammer

the mechanical bellows system functions accurately regardless of mounting position

6-inch diameter shell with extended mounting studs and resilient ring options

York 022-10642-004 Butterfly Valve mario NIST Traceable Calibration: Built toThe York 022 10642 004 Butterfly Valve is a critical OEM replacement part designed for high capacity liquid flow regulation in commercial and industrial chiller systems. Engineered specifically for York YK, YD, YR, YB, and YG series chillers, this 4 inch valve features a robust cast iron body and a stainless steel disc to ensure long term structural integrity under demanding operational cycles. The integration of a high grade EPDM seat provides a