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(A) Pipes shall not be surrounded or covered by cinders or other material of corrosive effect, but preferably should be laid in sand, and where carried in conduit, the opening of the conduit must be fully protected to prevent escape of liquid under dangerous conditions.
(B) Pipe lines buried on railroad property shall be laid at a depth of not less than three feet; where they pass under tracks they shall be laid at least four feet below the bottom of ties.
(C) Piping buried in city streets or other area where other pipe lines are carried shall be placed in conduit. Joint of conduit shall be sealed to prevent leakage and pitch shall be toward tank yard.
(D) Underground piping shall be coated with asphaltum or other corrosion-resisting materials.
(1980 Code, § 27.024) Penalty, see § 98.999
Joints may be gilded or of the ordinary screw type; if the screw type, they shall be made up with litharge and glycerine, lamp black or shellac.
(1980 Code, § 27.025) Penalty, see § 98.999
Piping after installation shall be tested at a pressure 50% in excess of the working pressure and shall be proven tight. Tests shall continue 30 minutes.
(1980 Code, § 27.026) Penalty, see § 98.999
(A) Each pipe attached to a tank shall be provided with a valve at the tank, with no branches or outlets between the tank and the valve.
(B) In case two or more tanks are cross-connected, there shall be a valve at each cross-connection. Tanks with different classes of liquids shall not be cross-connected.
(1980 Code, § 27.027) Penalty, see § 98.999
In addition to normal valve, there shall be an extra valve at each pipe line, installed on the inside of the tank and operated by an effective heat-releasing device, which shall automatically prevent the flow of liquid from the tank in case of fire, even if pipe lines are broken from the tank.
(1980 Code, § 27.028) Penalty, see § 98.999
Embankments or dikes are required:
(A) For each tank containing crude oil or other liquid which has a tendency to boil over;
(B) For each individual tank exceeding 50,000 gallons (1,200 barrels) in capacity; and
(C) For individual tanks of less than 50,000 gallons, or groups of tanks with individual tank capacity of less than 50,000 gallons, when installed on the bank of a stream or other body of water or on land permitting of rapid drainage thereto.
(1980 Code, § 27.029) Penalty, see § 98.999
(A) Dikes shall have a capacity of not less than the capacity of the tank or group of tanks surrounded.
(B) Dikes surrounding tanks containing crude oil or other liquid which has a tendency to boil over shall have a capacity of not less than 125% of the capacity of the tank or group of tanks surrounded or shall have a suitable coping or deflector projecting inward, properly constructed to minimize the effect of a “boil over” wave.
(1980 Code, § 27.030) Penalty, see § 98.999
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