Rose Industrial Marketing, Inc.

A Plast-O-Matic automatic air release valve ensures the depletion of unwanted air in pressurized tanks

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Courtesy of Rose Industrial Marketing, Inc.

The latest addition to SeaWorld’s ever evolving kaleidoscope of animal and entertainment experiences is the “Manta”. As advertised by SeaWorld, the Manta will have riders flying face down, in a horizontal position, underneath the belly of a coaster train shaped as a giant manta. This giant manta, with a wing span of 12 feet, will soar over sea and sky in the most graceful flying coaster ever created. Gliding, swooping, and diving up to nearly 60 mph, through four inversions on 3359 feet of track, riders will feel as if they are a ray, skimming the waves.

SeaWorld, along with many other aquatic amusement parks, maintain a complex system of water quality control. Within this treatment process, filtration is the most important phase. Sand filters are one of the most common types of filtration systems for this type of application. This type of filter is also commonly used for commercial pools, aquariums, municipal water treatment, irrigation, etc. The general purpose of the sand filter is to eliminate suspended particles from circulating water, thus improving the clarity of the water.

Several modes of the Sand Filter determine the direction and flow of water, all of which create pressure within the tank. For example, in the filter mode, the valve directs the water to the top of the filter, where it compresses and flattens down the sand. Contaminants are removed as the water makes its way to the bottom laterals, out of the filter and back to the application site, (i.e., amusement ride). In backwash mode, the valve directs the water to come out the bottom laterals, reversing the flow through the tank. This causes the sand to separate and lift while releasing the trapped debris into the water, allowing it to exit from the filter and go out the waste line.

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