B-1.1, r. 3 - Safety Code

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229. Every submersible pump in a motor fuel dispensing outlet and every tank situated at a level higher than the base of a motor fuel dispenser must have a fusible safety valve set not higher than 70 °C firmly attached to the island.
The shear point of the valve must be situated in the zone extending from 25 mm below the base of the dispenser to 13 mm above the base.
O.C. 221-2007, s. 1.