150S-MD HIGH PRESSURE LEVEL CONTROL W/ MAXIMUM DIFFERENTIAL Winters Needle Valves • Maximum operating temperature 366°F

• Maximum operating temperature 366°F (186°C)

• Provides an air pressure signal proportional to the liquid level

McDonnell & Miller PSE-800 Series Data Sheet

• 21⁄2" NPT side tapping provided for installation with close nipple

• Stainless steel components

150S-MD HIGH PRESSURE LEVEL CONTROL W/ MAXIMUM DIFFERENTIAL Winters Needle Valves • Maximum operating temperature 366°FLow Water Cut Offs Mechanical For Steam Boilers Series 150S Low Water Cut Off Pump Controllers For commercial and industrial low or high pressure boiler applications For boilers of any steaming capacity Monel bellows provides corrosion resistance Snap action switches for high temperature service 1 Single pole, single throw switch for pump control 1 Single pole, double throw switch for low water cut off and alarm actuation Optional features Manual