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Description
The Bermad Model 400E-7M Single-Interlock Preaction Release System is suitable for use in systems requiring that water be kept out of the sprinkler piping until an electric detecting device has been activated.
Electric single-interlock systems include automatic sprinklers attached to a dry sprinkler piping system, with a supplementary electric detection system and an Electric Supervised System of air pressure in the system piping, installed in the same area.
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