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The 233-40261-03 is designed for "old style" residential atmospheric models
When servicing Lochinvar boilers or A
as the M520 does not include an integral high-fire regulator
from the strainer screen to the seat assembly
Robust Construction: Manufactured from heavy-duty galvanized steel to resist corrosion and structural fatigue under high-heat conditions
Siemens Building Technology 331-2856 Actuator 323055-751 The 233-40261-03 is designed forThe Siemens 331 2856 is a heavy duty Powers Controls No. 6 pneumatic actuator designed for reliable linear control of large dampers, centrifugal refrigeration inlet vanes, and multi section ventilation systems. This pneumatic damper actuator features a rugged, all metal body construction to withstand demanding mechanical environments. It operates on a nominal 8 13 psi spring range, providing the high torque performance required for outdoor air,
