Resist-All-Clad is most commonly used as a floating roof drain system to drain water from the floating roof of an aboveground storage tank (AST). Resist-All-Clad is also used in flexible skimmer systems (used to skim a light liquid product) and foam delivery systems (used to distribute foam around the storage tank's rim area).

Resist-All-Clad features a preformed, multiple coil, repeating lay pattern and smooth internal fluidway. Resist-All-Clad features 100% compatibility with aromatic storage products. Resist-All-Clad is available for caustic service in a wide range of pH solutions.

Resist-all-Clad features a tether system that keeps the drain in position as installed. One tether is welded to the underside of the floating roof. Tethers also attach strategically between some of the ballasts on the roof drain. Resist-All-Clad is Installed by connecting the two flanges on the flexible pipe to existing hard piping at the sump nozzle and shell nozzle in the tank.

Resist-All-Clad Standard Specs

• 100% aromatic (hydrocarbon compatibility) w/ nylon tethers, nylon coated fittings carbon steel hardware.
• 100% aromatic w/ SS tethers, nylon coated fittings & SS hardware
• 100% aromatic w/ SS tethers, SS fittings & SS hardware

Resist-All-Clad has been proven to remain in service for up to 20 years or more. Life expectancy of all systems is dependent on proper installation, product in tank throughout the service life and adhering to Mesa's engineering design specifications.

Resist-All-Clad has a smooth inner wall (non turbulent) and no swivel joints to ensure optimum flow rates. Resist-All-Clad boasts a high gallons per minute (GPM) rate of drainage. Other articulating designs have elbows at every joint. Each elbow introduces 7-10 feet of additional hard piping to flow calculations. Still other designs include interior corrugation, which restricts flow. These other designs include space for build-up of abrasive compactable dust (fine sand) from the floating roof. These systems cannot remove as much water in GPM as the Mesa designs.

Resist-All-Clad features steel end fittings that provide non-leaking couplings at each end of the assembly. End fittings are protected by thick nylon coating (inside and out) and include floating 150 lb. ANSI raised face flanges. All stainless steel fittings are available for high pH applications. Other articulating rigid pipe systems have fittings on each side of the pivot. On a typical 48 ft. tall tank, an articulating design will incorporate 10 flanges, thus 10 potential leaks.

Resist-All-Clad features negative buoyancy in all storage tank products.   Resist-All-Clad will not slide on the tank floor as the roof raises or lowers.  It is not susceptible to internal PSI pressures as are non-reinforced visco-elastic nylon covers, which are limited to 60 PSI internal pressures. Resist-All-Clad is recommended for maximum working pressures up to 150 PSI.

Standard Resist-All-Clad specifications operate in temperatures ranging from   -40° to 180°F. Resist-All-Clad suffers no damage from freezing. All of Mesa Rubber designs are cold weather tested and certified. All are capable of freezing solid without damage to the units. The Resist-All-Clad design, which normally requires hard piping in its design, can be fitted with straight sections of flexible-pipe in lieu of hard pipe to ensure cold weather compatibility. Other articulating rigid pipe systems are susceptible to freezing and bursting due to the expansion of water when it freezes.

Resist-All-Clad features a steel exterior "armor" for protection during installation and service. This protective exterior has a low coefficient of friction.

Resist-All-Clad is designed for specific applications, including roof drains, skimmers and foam systems.