46 C.F.R. § 181.310 Fire main and hydrants.
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(a) A vessel that has a power driven fire pump must have a sufficient number of fire hydrants to reach any part of the vessel using a single length of fire hose. (b) Piping, valves, and fittings in a fire main system must comply with subpart G, part 182, of this chapter. (c) Each fire hydrant must have a valve installed to allow the fire hose to be removed while the fire main is under pressure. [CGD 85–080, 61 FR 982, Jan. 10, 1996, as amended at 62 FR 51358, Sept. 30, 1997]
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PART 181—FIRE PROTECTION EQUIPMENT
Subpart C—Fire Main System
§ 181.310 Fire main and hydrants.
