['Specialized Industries']

['Mining']

07/19/2025

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§75.1101-1 Deluge-type water spray systems.

...

§75.1101-1 Deluge-type water spray systems.

RegSense CFR Regulations Mining Specialized Industries CFR Section English Focus Area USA

(a) Deluge-type spray systems shall consist of open nozzles attached to branch lines. The branch lines shall be connected to a waterline through a control valve operated by a fire sensor. Actuation of the control valve shall cause water to flow into the branch lines and discharge from the nozzles.

(b) Nozzles attached to the branch lines shall be full cone, corrosion resistant and provided with blow-off dust covers. The spray application rate shall not be less than 0.25 gallon per minute per square foot of the top surface of the top belt and the discharge shall be directed at both the upper and bottom surfaces of the top belt and to the upper surface of the bottom belt.

['Specialized Industries']

['Mining']

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