this valve is a direct replacement for Watts 415-2-15 and 415-1 1/2 configurations

and flame supervision to ensure peak thermal efficiency and operational safety

The center section is designed to accept standard Worcester mounting kits

the BA-3X includes a 16-mesh bronze start-up strainer for initial system cleaning in closed hydronic systems

Siemens Combustion SQM40.255R11 Actuator 324846-701 this valve is a directThe Siemens SQM40. 255R11 is a high torque combustion actuator engineered for precise modulation of fuel and air flow in industrial burner systems. Operating on 110V AC, this modulating motor utilizes a 4 20 mA control signal with a 135 Ohm impedance to drive butterfly valves, dampers, and oil pressure controllers. Designed specifically for counter clockwise (CCW) operation, the unit delivers 90 in lb of torque with a 90 degree stroke time of 25