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The APEX CN1291SF590N is a double-duty oil gauging tape designed for accurate fluid-level measurement in storage tanks and similar industrial applications. The blade is constructed from steel with a Chrome Clad/Nubian finish that provides corrosion resistance in wet, oily environments. At 33 feet in length and 0.5 inches wide, the tape uses a D1 blade style paired with a 590 bob cut, making it suitable for both oil gauging and water-cut measurement in a single drop. Petroleum transfer professionals, fuel storage technicians, and industrial service crews are the primary installers and users of this instrument.
This gauging tape is built for use at above-ground and underground petroleum storage facilities, bulk fuel terminals, and industrial tank farms. The Chrome Clad face reads oil accumulation while the Nubian reverse side detects water bottom, allowing a single measurement to capture both levels without re-rigging. The compact case measures 6.2 inches overall, making it easy to transport between tanks on a service route.
Designed as an OEM-style replacement and standard-service gauging tape for petroleum storage tank measurement applications requiring a 33-foot, double-duty Chrome Clad/Nubian steel tape with a 590 bob cut.
Petroleum gauging tapes are deployed by fuel storage technicians and tank gaugers working under applicable local, state, and federal fuel-handling regulations. Before use, ensure the tank vent is open and all ignition sources are cleared from the work area, as gauging operations on fuel tanks involve flammable vapor exposure. Lower the bob slowly to avoid splash and allow the tape to stabilize before reading both faces. Inspect the blade and bob assembly for kinks or corrosion damage before each use to ensure measurement accuracy.
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