In a fluid reservoir tank such as an oil tank, the metal roof floats. The American Petroleum Institute (API) Recommended Practice (RP) number 545 requires a floating roof to tank resistance of less than 30 milli-ohms. The improved cable system uses a preferred aluminum braided cable to provide low resistance combined with resistance to sour fluids. Prior art used copper and tinned copper braided cables. The new reel is factory pre-assembled and tensioned using a new cable guide with a cable stop bar which stops a cable stop attached near the end of the (approximately 80 foot) cable. A new spring assembly increased tension and extends cable life by minimizing slack in the cable.

In a fluid reservoir tank such as an oil tank, the metal roof floats. The American Petroleum Institute (API) Recommended Practice (RP) number 545 requires a floating roof to tank resistance of less than 30 milli-ohms. The improved cable system uses a preferred aluminum braided cable to provide low resistance combined with resistance to sour fluids. Prior art used copper and tinned copper braided cables. The new reel is factory pre-assembled and tensioned using a new cable guide with a cable stop bar which stops a cable stop attached near the end of the (approximately 80 foot) cable. A new spring assembly increased tension and extends cable life by minimizing slack in the cable.

A storage tank inner wall and floating disc totally enclosed apparatus includes a tank body, floating disc, pressure relief balance structure and a flexible sealing body structure, wherein the floating disc is arranged in the tank body, the edge of the floating disc is provided with an outer frame, the outer frame is provided with a plurality of sealing structures, the top of the inner wall of the tank body is provided with an annular support, one end of the flexible sealing body structure is fixedly connected with the annular support, the other end of the flexible sealing body structure is fixedly connected with the outer frame, one end of the pressure relief balance structure is sequentially and fixedly connected with the flexible sealing body structure and the annular support, and the joint of the annular support is provided with a through hole.

A storage system for a petroleum product and related methods includes a floating roof seal having a vapor barrier and a coupling assembly. The coupling assembly includes a barrier securement and a shoe mount bracket for securing to a shoe plate. The barrier securement has a securement body and a resilient portion biased toward a clamp position and configured to selectively deflect relative to the securement body from the clamp position to an installation position. The barrier securement with the resilient portion in the installation position is configured to be received on the shoe mount bracket such that the barrier portion is positioned between the barrier securement and the shoe mount bracket. The barrier securement with the resilient portion in the clamp position is configured to compress the barrier portion against the shoe mount bracket thereby fluidly sealing the barrier portion between the shoe mount bracket and the barrier securement.

A storage system for a petroleum product and related methods includes a floating roof seal having a vapor barrier and a coupling assembly. The coupling assembly includes a barrier securement and a shoe mount bracket for securing to a shoe plate. The barrier securement has a securement body and a resilient portion biased toward a clamp position and configured to selectively deflect relative to the securement body from the clamp position to an installation position. The barrier securement with the resilient portion in the installation position is configured to be received on the shoe mount bracket such that the barrier portion is positioned between the barrier securement and the shoe mount bracket. The barrier securement with the resilient portion in the clamp position is configured to compress the barrier portion against the shoe mount bracket thereby fluidly sealing the barrier portion between the shoe mount bracket and the barrier securement.

A storage system for a petroleum product and related methods includes a floating roof seal having a vapor barrier and a coupling assembly. The coupling assembly includes a barrier securement and a shoe mount bracket for securing to a shoe plate. The barrier securement has a securement body and a resilient portion biased toward a clamp position and configured to selectively deflect relative to the securement body from the clamp position to an installation position. The barrier securement with the resilient portion in the installation position is configured to be received on the shoe mount bracket such that the barrier portion is positioned between the barrier securement and the shoe mount bracket. The barrier securement with the resilient portion in the clamp position is configured to compress the barrier portion against the shoe mount bracket thereby fluidly sealing the barrier portion between the shoe mount bracket and the barrier securement.

A storage system for a petroleum product and related methods includes a floating roof seal having a vapor barrier and a coupling assembly. The coupling assembly includes a barrier securement and a shoe mount bracket for securing to a shoe plate. The barrier securement has a securement body and a resilient portion biased toward a clamp position and configured to selectively deflect relative to the securement body from the clamp position to an installation position. The barrier securement with the resilient portion in the installation position is configured to be received on the shoe mount bracket such that the barrier portion is positioned between the barrier securement and the shoe mount bracket. The barrier securement with the resilient portion in the clamp position is configured to compress the barrier portion against the shoe mount bracket thereby fluidly sealing the barrier portion between the shoe mount bracket and the barrier securement.

Floating roof tank for a volatile liquid have an outer roof and an internal floating roof with a primary seal with a support such that when the tank is empty, the floating roof will rest on the support whether the tank is in a vertical or horizontal position. The support enables the tank to be transported in a horizontal position without damage to the seal. The floating roof tank with support can be configured as a conical tank, flat bottom tank or slant bottom tank. The floating roof tank can also include a cleaning system and a flush mounted manway cover.

Apparatus and methods for measuring the deformation in a floating-roof seal assembly. A fiber optic cable is attached along its length to the floating-roof seal assembly such that the fiber optic cable is deformed when the floating-roof seal assembly is deformed. Deformation of the fiber optic cable and the seal assembly can be determined based on how the light interacts with the fiber optic cable. This helps allow tanks with a floating roof to be monitored.

Apparatus and methods for measuring the deformation in a floating-roof seal assembly. A fiber optic cable is attached along its length to the floating-roof seal assembly such that the fiber optic cable is deformed when the floating-roof seal assembly is deformed. Deformation of the fiber optic cable and the seal assembly can be determined based on how the light interacts with the fiber optic cable. This helps allow tanks with a floating roof to be monitored.