42S COMBO PUMP CONTROLLER & LWCO (STEAM) Apollo Relief Valves Series 551-S

Series 551-S

Model 792 - High Pressure Water Vent Valve For releasing air from hot or cold water or glycol mains

• Maximum operating pressure 35 psig (2

Maximum operating pressure 150 psig (10

• Certified by Revenue Canada Customs & Excise

42S COMBO PUMP CONTROLLER & LWCO (STEAM) Apollo Relief Valves Series 551-SLow Water Cut Offs Combination Low Water Cut Off Pump Controllers for Steam Boilers Series 42S Low Water Cut Off Pump Controllers For residential, commercial, and industrial low and medium pressure steam boilers with a separate water column For boilers of any steaming capacity Monel bellows provides corrosion resistance Single pole, single throw snap action switches Enclosed junction box protects switches Optional features Quick hook up fittings Gauge