Is this unit compatible with older 2-wire systems

Key Benefits Precision Threading: Manufactured to Nor East Controls engineering tolerances for a seamless fit on compatible actuator stems

ensuring a drop-in fit with no field modifications required

maintaining consistent setpoint accuracy within the primary-secondary piping loops common in Weil McLain boiler installations

TB Woods 9N Sleeve Insert Els PW 29614 Is this unit compatible withThe TB Woods 9N Sleeve Insert is a high performance elastomeric element engineered for the Sure Flex Plus coupling system. This size 9 neoprene sleeve features a two piece split design with a reinforcing retaining ring, allowing for efficient installation without disconnecting the driving or driven equipment. Designed for demanding power transmission, the neoprene material offers superior oil resistance and chemical resilience compared to standard