While it fits many standard motors used in these units

ensuring it operates efficiently within existing pneumatic control loops without taxing the air compressor

Safety Focused: Integrated draft temperature switch prevents operation during hazardous overheating conditions

The 7B switch provides a proportional 135-ohm signal for modulating feed water systems

Direct Acting Design: Operates reliably at 0 PSI minimum pressure for consistent performance regardless of system load

Nidec-US Motors 3256 Motor 320819-301 While it fits many standardThe Nidec US Motors 3256 Motor is a high performance split phase circulating pump motor engineered specifically for hydronic heating and industrial hot water systems. Operating at 1 6 HP and 1725 RPM, this 115Vac single phase motor is the direct replacement for CP R1351 and is compatible with common Bell & Gossett or Armstrong pump assemblies. Built with a NEMA 48Y frame size and a 1 2" shaft with a special circular pump hub, it features ball bearings