Honeywell M-701-2-FLG swivel mount 2" S55XB3 VWG

This swivel mount is a component used to position and secure a temperature sensor against a pipe or within an immersion pocket. In a heating system, temperature sensors such as NTC probes or mechanical thermostats must be held in firm contact with the measured medium to ensure accurate readings for the control board. A swivel mount allows the sensor head to be rotated into the desired orientation, which can simplify installation in tight spaces or where the cable exit angle matters. Parts of this type are selected by pipe diameter, probe diameter, and the mounting method (clamp-on, immersion sleeve, or surface fixation). The specific article is listed as a Honeywell M-701-2-FLG swivel mount with a 2‑inch size reference. When replacing such a mount, verify that the pipe diameter matches the mount’s clamping range and that the sensor probe fits securely through the mount’s retaining opening. Check for material compatibility (metal vs. plastic) with the operating environment, and confirm that the mount can withstand the temperature at the measurement point. Loose or incorrectly sized mounts cause poor thermal contact, leading to drifting sensor readings and erratic boiler modulation.