SECTION 165:26-2-53. Valves on piping

(a)   If a submersible pump system is used, a UL listed emergency shutoff/shear valve must be installed at each dispensing device. Both the emergency shutoff/shear valve and dispensing device shall be rigidly anchored in place.

(b)   If a suction pump-type dispensing device with an air eliminator is used, and where the height of liquid in the tank may exceed the height of the suction pump, a UL listed, vacuum-actuated shutoff/shear valve or equivalent-type valve must be installed directly under each dispensing device. Both the shut off/shear valve and dispensing device shall be rigidly anchored in place. Tanks installed in below-grade vaults are not required to comply with this requirement.

(c)   Manual shutoff and check valves must be equipped with a pressure-relieving device that will relieve the pressure generated by thermal expansion back to the tank. Manual shutoff valves that are normally open and only closed for maintenance do not require a pressure relieving device.

(d)   Each connection to an aboveground tank through which liquid normally flows must be provided with an internal or an external emergency fire valve located as close as practical to the shell of the tank or submerged pump. The fill line may be equipped with a check valve made of steel or nodular iron rather than a fire valve. The steel check valve must be installed downstream of the block valve on fill lines if a fire valve is not installed.

(e)   An anti-siphon or solenoid valve must be installed on each supply line according to manufacturer guidance and recognized industry standards.

(f)   A manual shut off or ball valve must be installed on each supply line according to manufacturer guidance and recognized industry standards.

(g)   All valves must meet the construction criteria of 165:26-2-54.

[Source: Added at 21 Ok Reg 2079, eff 7-1-04; Amended at 22 Ok Reg 1752, eff 7-1-05; Amended at 23 Ok Reg 2297, eff 7-1-06; Amended at 34 Ok Reg 958, eff 9-11-17; Amended at 36 Ok Reg 576, eff 8-1-19]