173502 Model 157S McDonnell & Miller Hi Pressure Level Control

Catalog Page

Installation Guide

The McDonnell & Miller #157S HI Pressure LEVEL Control

Features and Benefits

• 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