McDonnell & Miller 193-A-1 Replacement Casting 30067439-890 If your current system uses

If your current system uses a single screw-in coaxial connection at the valve

it features a 5/16" x 2" single shaft and provides clockwise (CW) rotation

effective area throughout the actuator's travel

High Flow Efficiency: Delivers a substantial 60 Scfh air capacity while maintaining low pilot air consumption to preserve system-wide pressure stability

the McDonnell & Miller 312200 is the official updated part number that replaces the discontinued 311100

McDonnell & Miller 193-A-1 Replacement Casting 30067439-890 If your current system usesThe McDonnell & Miller 193 A 1 Replacement Casting is a primary structural component engineered specifically for the Series 193 low water cut off and pump controller. As a veteran technician knows, the integrity of the water column casting is vital for maintaining the 150 psi (10. 5 kg cm2) maximum pressure rating required by commercial and industrial steam boilers. This replacement boiler casting features precise 1" NPT connections for the main