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Preferred Utilities

Preferred Utilities engineers and fabricates fuel oil handling systems for diesel generators and dual-fuel fired boilers for mission critical facilities such as data centers, hospitals, and emergency response facilities. Our engineers specialize in mission critical fuel oil system design so they are current with the latest industry practices and fire protection codes. In addition, Preferred Utilities offers a wide variety of fuel oil system components designed to meet the unique requirements of our fuel oil customers. Preferred Utilities' industrial factory is located in Danbury, CT

Tank Heating Coils

The Model B Tank Heating Coils are used on underground storage tank applications when excessive ground water, unusually cold ground conditions, or high pour point oils dictate the need for reserve heating capacity.

Application

The Model B Tank Heating Coils are used on underground storage tank applications where excessive ground water, unusually cold ground conditions, or high pour point oils dictate the need for reserve heating capacity. They are also useful where there is a need for the radiated heat in the tank to promote the stored oil to flow towards the suction stub. The Tank Heating Coils produce a less localized heat than the coils within the Suction Bells.

Overview

The Model B-60 consists of two concentric coils connected in parallel. The coils are made of ¾” diameter carbon steel tubing, and have a total surface area of 60 square feet. The assembly weighs 150 lbs, 45″ long and 15 ¼” wide at the 1″ NPT coupling connections.
The Model B-70 consists of two concentric coils connected in series. The coils are made of 1″ standard steel pipe, and have a total surface area of 70 square feet. The assembly weighs 375 lbs and is 73″ high and 15 ⅜” in diameter. The 1″ NPT couplings are on 13 ⅝” centers.

Specification

Provide and install one Preferred Utilities Mfg. Corp. Danbury, CT, Model B-70 (B-60) Tank Heating Coil. Coil shall be of 1″ standard steel pipe (¾” 16 gauge steel tubing), contain not less than 70 (60) square feet of heating surface and shall not be over 15 ⅜” in diameter for insertion through a 16″ manhole.