McDonnell & Miller Head Mechanism 150S-M-HD, Use With 150-M

McDonnell & Miller Series 51-2 Mechanical Water Feeder/Low Water Cut-off 51-2, #2 Switch For low pressure steam and hot water boilers larger than 5,000 sq. ft. (465m2) capacity with cold water feed. Quick-change replaceable cartridge valve and strainer. Optional features - No. 2 switch - Manual reset - Float block. Proportional feed action. Model 51 can be field upgraded with a No. 2 switch to add low water cut-off function. Maximum water supply pressure 150 psi (10. 5 kg/cm2). Maximum inlet water temperature 120°F (49°C). Maximum vessel pressure 35 psi (2. 5 kg/cm2). Made in ...

Safgard™ Model 787 Tank Pump High Level Control, 120V Controls pump to maintain desired liquid level. Can be mounted directly in tank or in external equalizing line. Remote probe mounts any distance from control to accomodate virtually any application. High level control maintains level between probes. Energizes pump to remove liquid from tank when the level reaches the upper probe. De-energizes pump when liquid level falls below bottom probe. Includes (1) el1214-sv and (1) EL1214-RSV probes. Made in the USA.

Safgard™ 600 Series Low Water Cut-Off W/Auto Reset, Short Probe, Commerical, 24V Interrupts power immediately in a low water condition. Automatically restarts burner on return of water level. Features test button, onboard indicating lights and easy to follow installation instructions. Model 1100 includes plug-in wire harness with labeled quick-connect terminals. Model 1100 is available with additional wiring harnesses for popular boilers. Made in the USA . Click for Instructions

Cyclegard® CG400 Series CG450P-1090 Low Water Cut-Off, Auto Reset, Direct Boiler Mounting, 120V Features: Intermittent Level Test Maximum Protection for Foaming Boilers 15 Second Burner Off Delay 30 Second Burner On Delay Automatic Reset Low Water Indicating Light Direct Boiler Mounting - Eliminates Blowdowns Burner circuit contacts open after 15 second delay in a low water condition. Delay prevents short cycling caused by momentary fluctuations in the boiler water level. Automatically reactivates burner circuit 30 seconds after water reaches the probe, allowing optional water feeder to ...

McDonnell & Miller Series 47 Mechanical Water Feeder/Low Water Cut-off 47-2, #2 Switch For steam and hot water boilers with cold water feed. Continuous maintenance of minimum safe water level, independent of electrical service. Proportional feed action. Quick hook-up fittings provided. Quick-change replaceable cartridge valve and strainer. Optional features Series 47 F - No. 2 switch - Manual reset. Model 47 can be field upgraded with a No. 2 switch to add low water cut-off function. Maximum water supply pressure 150 psi (10. 5 kg/cm2) . Maximum inlet water temperature 120°F ...