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.
The VSR may also be used as a sectional waterflow detector on large systems. The VSR contains two single pole, double throw, snap action switches and an adjustable, instantly recycling pneumatic retard.
Main Features
Assembled in USA
0-90 second field replaceable time delay retard
Easy to read retard time delay adjustment knob
UL Listed models for 2"-6" steel pipe schedules 5 through 40
UL Listed and FM approved models for 2"-8" steel pipe schedules 10 through 40
Two SPDT (form C) contacts
Weatherproof
Easy to read wire terminal designations
NOTE: Product currently out of stock which will delay delivery by 2 to 3 weeks
