Crown Energy Solutions constructed a new bulk propane storage facility for Island Gas located in Nantucket, MA. CES provided two new, belowground, 30,000 gallon propane storage tanks and transported them to the site via ferry boat and truck. A crane service was provided to unload the tanks from the truck and load them onto the concrete pads belowground.
One 3” Corken Z3500 pump with one 10 HP motor and by-pass line back to the tanks were provided and installed. The existing transport unload stanchion was manifolded to the tanks. There was an existing bobtail stanchion, which was relocated and reused. One additional bobtail load stanchion was fabricated in accordance with the latest edition of NFPA Pamphlet 58 specifications for vapor return and fill lines. All the necessary piping for both liquid and vapor lines was installed.
To assure corrosion protection due to the location of the site, the propane storage tanks were coated and had insulated unions and 12, 17# anode bags installed on each tank.
Crown Energy Solutions provided and installed an emergency shut-down system with nitrogen-activated pneumatic releases for the additional storage tanks. Including one shut-off that was located at the new bobtail stanchion. The switches and operators were tied into the existing system