171802 Model 150S-MD McDonnell & Miller Hi Pressure Level Control

Datasheet

Instruction Manual 

The McDonnell & Miller #150S-MD HI Pressure LEVEL Control

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 reset
  • 2 Single pole, single throw switches
  • 2 Single pole, double throw switches
  • Float block
  • BSPT threads
• Maximum pressure 150 psi (10.5 kg/cm2 )

Model 150S-MD Maximum differential operation

• Prevents nuisance burner shutdowns in low pressure applications
• Maximum operating pressure 50 psi (3.5 kg/cm2 )