VSR Series

Vane Type Waterflow Alarm Switch with Retard

The Potter VSR is a vane type waterflow switch with non-corrosive insert for use on wet sprinkler systems. It is UL Listed and FM Approved for use on steel pipe. Models available for pipe sizes 2" through 10". The Potter VSR series is the industry standard for flow switches for fire sprinkler systems and is compatible with the widest range of pipe schedules (5 through 40) in the industry as well as all necessary listings and approvals for installation worldwide. Please see the individual data sheets for specific information about a particular model and size, including the VSR-10 for use on 10" pipe.

For additional information on waterflow alarm switches visit our Fire Sprinkler Monitoring Training Section.

Documents & Resources


Play Video

VSR Installation

Potter Academy Training

This product is featured in the Potter Academy training hub. To get started, click a course below or to learn more about Potter Academy, click here.