POTTER VSR-2.5eBayProduct OverviewThe VSR 2. 5 is a vane type waterflow switch designed for use on wet sprinkler systems. It is UL, CUL, CSFM Listed, FM Approved, and LPCB Approved, supporting installation on steel pipe (Schedules 1040) in sizes ranging from 2" to 8". This model functions as a primary waterflow detector or as a sectional detector for larger systems. It incorporates dual SPDT snap action switches and an adjustable pneumatic retard to prevent false
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