Bolted Water Storage Tank Installation 

www.commtank.co...
Bolted Water Storage Tank Installation
This project was performed for Bostik Corporation in Middleton, Ma. They required a fire protection storage tank that would supply water for three buildings on site. A pump station will be installed to pressurize 8” concrete lined steel piping. This NFPA-22 single wall insulated fire protection aboveground storage tank (AST) was designed and installed to store clear water.
The concrete ring foundation is about 23-24" in width all the way around instead of the recommended 18". This allowed us to have a little room to accommodate any error in the foundation as we hand built and placed the forms. The original reveal was intended to be 12" from the outside edge of the concrete ring foundation to the tank shell wall. The tank shell wall is nearly directly centered in the middle of the tank ring foundation.
These measurements reflect the tank placement at a more aesthetic location centered on the foundation ring. This places the final 180° resting place for the tank @ 4-5" to the right (East) of the final markings that we were provided to align the tank to coordinate with the pump house and piping.
The structural engineer assured us that the tank foundation is structurally sound and really only needed a 4.5" reveal according to the standard that the tank was designed.
Material Stored: water
Purpose: Fire Protection
Construction Materials:
1. Sheets/plate ASTM 1011. A572, A656 (for grade of steel see sidewall sheets on tank elevations drawing)
2. W beams = ASTM A992
3. C channel = ASTM A572·50
4. Angle = ASTM A572-50
5. Bolts = GR8.2, JS1000 coating Fy =130000 psi Fu = 150000 psi
6. Gaskets = EDPM
7. Sealant= Manus bond 75AM
8. Top eave angle to be L4x4x3/8 gr 50
9. Bottom angle to be L3 1/2x2 ½x5/16 LLV GR 50
10. Roof rafters to be C8 x 11.5 GR 50
11. Roof sheets to be 0.1345 in. GR 50
12. Floor sheets to be 0.1046 in. GR 50
General notes:
1. Shell bolt tightening spec. = AISC snug tight
1. Horizontal shell bolt spacing = 2.32·
2. Vertical shell bolt spacing = 2.32"
3. All flanges to be factory located
4. FM global eq zone = 500 years
A. Vacuum leak test was conducted on the floor laps.
B. The tank will be filled with water and checked for leaks prior to placing into service
C. The foundation shall be designed and provided by CommTank
D. Tank heating and insulation is installed according to FM global loss prevention data sheet 3-2.
5. Details shall be submitted to the appropriate FM global office
6. For review and acceptance.
A. E. Shell plates shall be cold rolled to the proper radius,
B. F. All nozzles, fittings and accessories may be oriented by the customer, however, any nozzle that can possibly be discharging while the suction pump is operating (automatic, fill, recirculation) will be located such that it discharges into a different quadrant (more than 90) from the suction inlet.
C. G. Coatings shall be in accordance with AWWA D103, section 10.6 and interior coatings shall be NSF standard 61 approved. Interior coating shall be thermal bond 579 applied to 5-7 mils average thickness (DFT). Exterior coating system shall be as follows:
• Primer = one coat thermal bond 579 thermoset epoxy powder primer applied to 3-5 mils oft. Topcoat -one coat super durable polyester powder
For more information about our bolted water storage tank installation service, call CommTank at 1-800-628-8260. Or you can reach us by email at sales@commtank.com.
CommTank, Inc.
84 New Salem Street
Wakefield, Ma. 01880
www.commtank.com
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