51B-2 MECHANICAL WATER FEEDER LWCO W/ #2 SWITCH Winters Thermowells Hoffman 75 Air Valve Data

Hoffman 75 Air Valve Data Sheet

economical thermometer with a vertical sensing tube and case

• Brass / bronze construction

- Prescision Spur Style Gears

51B-2 MECHANICAL WATER FEEDER LWCO W/ #2 SWITCH Winters Thermowells Hoffman 75 Air Valve DataWater Feeders Mechanical Series 51 51 2 Mechanical Water Feeders Low Water Cut Offs 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.