McDonnell & Miller 349500 Hook-Up 30067439-890 Compressive set prevents old gaskets

Compressive set prevents old gaskets from re-sealing effectively once the flange torque is released

Applying line voltage to the coil will result in immediate component failure

Key Benefits Broad Operating Range: Adjustable from 150°F to 550°F to handle diverse high-heat applications

Multi-Pole Versatility: The combination of 2SPST and 1SPDT contacts allows for simultaneous control of independent voltage control circuits

McDonnell & Miller 349500 Hook-Up 30067439-890 Compressive set prevents old gasketsThe McDonnell & Miller 349500, also identified by model number SA159 24, is a specialized lower quick hook up fitting engineered for seamless integration with steam boiler safety controls. This critical component serves as a direct replacement part for the McDonnell & Miller Series 47 and 47 2 mechanical water feeders, as well as the Model 64 A, 42A, 67, and 42S A low water cut offs. Designed for professional installation, it enables a reliable