McDonnell & Miller 173103 150S-MD-HD Head Mechanism with Maximum Differential

Product Description

The McDonnell & Miller 173103 model 150S-MD-HD head mechanism is expertly designed for use with Series 150S and Series 157S low water cut-offs, providing maximum differential functionality. This essential component is ideal for ensuring reliable operation and easy maintenance in heating systems.

• Features maximum differential mechanism to enhance heating system reliability.
• Allows quick replacement without disrupting existing piping – simply remove bolts and install.
• Includes all necessary components except for the float-chamber casting.

Product Highlights

The head mechanism is crucial for maintaining water level control in boilers and heating systems, preventing the boiler from operating in low water conditions which can lead to significant damage.

Product Information

Standard Information

• Brand: McDonnell & Miller
• MPN: 173103
• Model: 150S-MD-HD

Technical Specifications

• Series: Compatible with Series 150S and 157S
• Weight: 10.31 pounds
• Replacement Part: 150-MD-HD
• UPC: 751875035931