| 摘要 |
A containment box for collecting leaking gasoline from gasoline handling equipment, such as a gasoline dispenser, is disposed below the dispenser. The box receives a gasoline supply pipe passing through an aperture, and a fitting is provided for sealing the aperture and adjustably fixing the supply pipe. The fitting includes a main body, a deformable element, a seating piece for seating the deformable element and threaded to the main body, and a clamping piece threadable onto the seating piece to cam the deformable element radially inward to contact the supply pipe. In another embodiment, the main body and seating piece are combined unitarily. The box has another aperture through which a conduit passes, and there is a universal fitting for sealing that aperture. The universal fitting includes a main body with an external shoulder and a nut which threads onto the main body, with gaskets disposed between the shoulder and box and between the nut and box. The main body has an integrally formed internal shoulder for supporting sealing compound. The box has a further aperture for communicating with a vapor recovery pipe, and there is another universal fitting identical to the first for connecting with the pipe. There is also an underground terminator fitting for connecting two double-walled pipes so as to allow flow through the primary pipes, but prevent flow through the outer pipes.
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