Description
The Model LD-1 Anti-Column Device is an optional trim. component designed for use with dry pipe and preaction sprinkler systems. The anti-column device automatically prevents an unwanted water column from establishing within the system riser. On dry pipe systems the anti-column device prevents water from columning downstream of the dry valve. On preaction sprinkler systems the anti-column device prevents water from columning downstream of the easy riser check valve.
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