150S-MD HIGH PRESSURE LEVEL CONTROL W/ MAXIMUM DIFFERENTIAL Winters Needle Valves • 21⁄2" NPT side tapping

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

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

• Replaceable Dura-Stat® module

• Maximum pressure 25 psig (1

150S-MD HIGH PRESSURE LEVEL CONTROL W/ MAXIMUM DIFFERENTIAL Winters Needle Valves • 21⁄2" NPT side tappingLow 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