Attachment B Combi Tank Spec 2009-05-12 updated 3 (2).doc

DOC document 64 KB Posted

Attached to
Manufactured Combi Fish Tanks Amendment (see specifications)
Solicitation number
RFQ - 18P - 09061100000000000922
Issued by
Cumberland County, Maine

About this file

This is a technical specification document for Fiber-Reinforced Plastic (FRP) Combi Fish Culture Tanks to be supplied and installed according to contract requirements. The specification details the supply and installation of complete Combi Fish Culture Tank systems, which include a main tank, first feeder tray, egg tray, and plumbing kit. The document requires 30 main tanks with dimensions of 3 feet by 2 feet by 36 feet depth, 30 first feeder trays measuring 3 feet by 2 feet, and 30 egg trays constructed of ABS plastic with specified mesh openings. Additional components include bottom center drain sumps, removable water level control standpipes, fish exclusion screens, and skirts/stands as needed. The specification references ASTM American Society for Testing and Materials standards, ANSI/ASME Performance Test Code, and AWWA American Water Works Association guidelines. Manufacturers must submit complete assembly and installation drawings, product data, and equipment specifications for approval prior to fabrication. The acceptable manufacturer listed is PR Aqua Ltd., with contact information provided, or an approved equal.

The specification mandates that manufacturers have a minimum of 10 prior installations with at least 5 years of successful in-service performance in similar applications. All materials must comply with fish-rearing water safety requirements, prohibiting cadmium, brass, bronze, copper, zinc, and their alloys. Tanks shall be constructed using orthophthalic polyester resin rated for temperatures up to 150 degrees Fahrenheit, with Type E electrical borosilicate glass reinforcement and a multi-layered laminate system with minimum thickness of 3/16 inches. Interior and exterior surfaces require polyester gel coat finishes in green color, with specific thickness requirements and quality control standards consistent with ASTM D2563. The contractor bears responsibility for shipping, crate protection, and proper handling throughout delivery and storage. All equipment and accessories include a one-year warranty from final acceptance by the owner. Installation must follow manufacturer recommendations and be coordinated with process piping and aquaculture equipment, with hydrostatic testing required to verify leak-free operation before final acceptance.

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Conditions and Instructions to Bidders.doc DOC document
Combi stand pipe drawing.pdf PDF
Revised Spec Summary Combi Tank.doc DOC document

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Text version

SECTION 00 00 00

FIBER-REINFORCED PLASTIC COMBI TANKS

PART 1 - GENERAL

1.01 SUMMARY

A. Supply and install Combi Fish Culture Tank(s) in accordance with the requirements of SECTION 00 70 00 – CONDITIONS OF THE CONTRACT. The Combi Fish Culture Tank(s) includes the main tank, first feeder tray, egg tray and plumbing kit.

1.02 REFERENCES

A. Commercial Standards

1. ASTM

American Society for Testing and Materials

2. ANSI/ASME

Performance Test Code

3. AWWA

American Water Works Association

1.03 SUBMITTALS

A. Product Data and Shop Drawings: Submit complete assembly and installation drawings and product data for the Fish Culture Tank equipment as a complete system, in accordance with SECTION 01 33 00 - SUBMITTAL PROCEDURES. The following are to be included in the submittal:

1. Product data and shop drawings for approval as per SECTION 01 33 23 – SHOP DRAWINGS, PRODUCT DATA AND SAMPLES. Drawings are to show locations and connections of water inlet and outlet.

2. Equipment name and applicable specification number

3. Product data including:

a. Dimensions and capacity

b. Components including resin and reinforcement

c. Tank construction materials,

d. Exact pipe connection sizes, types and locations

e. Floor and wall slopes,

f. Tank interior and exterior color

g. Finishes including UV absorbers, pigments and gelcoats

h. Weights and thicknesses

i. Specifications for accessory items.

4. Assembly and Installation Drawings: Complete assembly and installation drawings and instructions including piping, equipment assemblies, required clearances, method of field assembly, location and size of each field assembly, mounting, and anchoring.

1.04 QUALITY ASSURANCE

A. Manufacturer Qualifications: A firm experienced in FRP vessel manufacture similar to that indicated for this project and with a record of successful in-service performance in similar applications. Minimum experience of at least 10 installations with an installed service record of 5 years or greater is required.

B. Installer Qualifications: Engage personnel experienced in FRP vessel installations similar to that required by this project who are acceptable to the FRP vessel manufacturers.

1.05 DELIVERY, STORAGE, AND HANDLING

A. Packing, Shipping, Handling and Unloading: Manufacturer shall provide shipping of all items specified to the project location. The Contractor shall make the Manufacturer fully responsible to adequately crate and protect all fibreglass items from damage during shipping. Damaged units may be rejected by Engineer and returned to the manufacturer for replacement or repair.

B. Storage and Protection: Stored units shall be kept fully crated and protected from damage at all times prior to installation.

1.06 WARRANTY

A. Warranties for materials and workmanship for all equipment and accessories as specified in this section are to be valid for a period of not less than one (1) year, starting from final acceptance by the OWNER and in accordance with SECTION 01 78 36 – WARRANTIES.

PART 2 - PRODUCTS

2.01 ACCEPTABLE MANUFACTURERS

A. PR Aqua Ltd., Contact: (250) 714-0141, Fax (250) 714-0171 B. Or Approved Equal

2.02 MATERIALS

A. The contractor shall not install any material containing cadmium, brass, bronze, copper, zinc, or their alloys, which could come in contact with fish rearing water. These heavy metal materials have been shown to be toxic to fish.

B. Resin

1. The resin, unless otherwise specified shall be as produced by CCP, Reichhold, Dow, Ashland or approved equal. The same resin shall be used throughout the laminate unless otherwise specified.

2. An orthophthalic polyester resin, rated for use in <fresh water> applications at temperatures up to 65.6°C (150°F), shall be used for all FRP vessels, except where contact with ozone could occur when an ozone-resistant epoxy vinyl ester resin such as Derakane 411 by Ashland shall be used.

3. The resin used shall not contain fillers, unless specified. When specified up to 2% by weight thixotropic agent, Cab-O-Sil, or equal, may be used for viscosity control in the paraffinated top coat on vertical surfaces, provided it will not interfere with visual inspection.

4. Unless otherwise agreed upon by the Manufacturer and the Engineer, the cure system used for the resin shall be in accordance with the resin manufacturer’s current recommendations. Proper curing of the resin is the FRP vessel Manufacturer’s responsibility. All products fabricated to this specification shall be cured to at least 90% of the minimum Barcol Hardness specified by the resin manufacturer. This requirement applies to both interior and exterior surfaces. (Note: The use of paraffin in the resin or the use of synthetic veil may lower the Barcols below the resin manufacturer’s specifications, this is acceptable.)

5. No chemical-resistant surface, interior or exterior, shall be acetone sensitive.

C. Reinforcement

1. Woven roving shall be Type E (electrical borosilicate) glass, nominal 24 oz./sq. yd., 4 by 5 weave, with a silane-type finish and a binder compatible with the lay-up resin.

2. Chopped strand mat shall be Type E glass, 1-1/2 oz. per sq. ft., with a silane finish and a styrene-soluble reactive binder.

3. Continuous roving used in chopper gun for spray-up shall be Type E.

D. Combi Main Tank Laminate Construction

1. The vessel shall be constructed using a multi-layered system consisting of, at minimum, the following layers:

a. Polyester gel coat

b. Chop strand fibreglass

c. Woven roving

d. Chop strand fibreglass

e. Polyester gel coat

2. The minimum thickness shall be 3/16 inches (4.763 mm).

3. The inner surface of each tank shall be smooth from a molded surface and consist of a polyester gel coat 15 to 18 mil thick and green in color. The exterior of each tank shall be finished with a polyester gel coat a minimum of 10 mil thick and green in color.

4. All factory perforations must be sealed with resin and gel coat. Field cut perforations may be sealed with epoxy or polyester resin and gel coat or with marine grade sealant.

5. A visual inspection of the laminate shall be made by the manufacturer. ASTM D2563 shall be used for quality control of construction. Laminate defects and the permissible limits shall be in accordance with the following table:

Defect
Process Surface
None Process Surface
Blisters
None
Max ¼ inch diameter, 0.0625 inch high
Burned Areas
None
None
Chips
None
Max ¼ inch with max thickness 20% of wall
Cracks
None
None
Crazing
None
Slight
Dry Spots
None
Max 2 sq. in./sq. ft.
Entrapped Air
None at surface
0.125 inch diameter max; no more than 3% laminate, 0.0625 inch diameter of area, max 10/sq. in.
Exposed Glass
None
None
Exposed Cut Edges
None
None
Foreign Mater
None
None if it effects the properties of the laminate
Pits
Max 0.125 inch by 0.03125 inch deep, max 10/sq. ft.
Max 0.125 inch diameter by 0.0625 inch deep
Scratches
None (Coated)
None (Coated)
Surface Porosity
None
None
Wrinkles
Max deviation 20% of wall thickness
Max deviation 20% of wall thickness
Sharp Discontinuity
None
None

E. Combi First Feed Tray Laminate Construction

1. The vessel shall be constructed using a multi-layered system consisting of, at minimum, the following layers:

a. Polyester gel coat

b. 6 oz Chop Strand Fibreglass Mat

c. Polyester gel coat

2. Quality control criteria shall conform to requirements described in section D above.

F. Combi Egg Tray

a. The vessel shall be manufactured of thermal molded 1/8 inch ABS plastic screen with 3/32” x ½” (or ¾”) mesh openings.

2.03 COMPONENTS

A. Tank numbers and dimensional information will be required as noted below:

Number Required
Diameter (in)
Depth (in)
Features required

3” 2” 36” 30” 2 part internal standpipe

30
3” x 2”

Bottom center drain sump

30
As needed to fit Main Tank
As needed to accommodate bottom plumbing
Skirts/stands
30 (see part B below)
To fit 3” PVC standpipe

Fish Exclusion screen

B. Fish Exclusion Screens for bottom of 3” Outer Standpipe of Main Tank may be manufactured out of semi-rigid PVC, aluminium or stainless steel. Opening slots shall be staggered with a maximum opening of _1/16_ by __1/2_or 3/4____ inches.

C. Tank bottom center drain sump will be constructed of PVC & be made an integral part of the Main Tank bottom using FRP (fibreglass reinforced plastic).

D. A removable 2” Sch. 40 PVC Inner water level control standpipe shall be provided (as shown in “Combi stand pipe drawing”).

E. Use <304,316> stainless steel fasteners where required to assemble component pieces unless noted otherwise.

PART 3 - EXECUTION

3.01 GENERAL

A. All fish culture tank components shall be properly designed and built for stresses that may occur during fabrication, shipping, installation, and intermittent or continuous operation. Workmanship shall be of high industrial standards in all respects.

B. Surface Preparation: Clean and disinfect the fish culture tank components. Remove dirt and debris as work progresses.

3.02 INSTALLATION / CONSTRUCTION

A. The fish culture tank components shall be installed according to the tank manufacturer’s recommendations.

B. The fish culture tank component installation shall be coordinated with the process piping and other aquaculture equipment. Elevation of equipment should conform to the requirements of the engineer responsible for system hydraulics.

3.03 ADJUSTING

A. Upon completion of the installation, the fish culture tanks shall be tested for satisfactory operation. All equipment shall be adjusted and checked for alignment, levelness, clearances, supports, and adherence to safety standards, until found satisfactory. This work will be performed by the Contractor B. The tank water level and flow in pipe systems is the responsibility of the engineer responsible for system hydraulics. Adjust standpipe lengths as specified by the engineer responsible for hydraulics to achieve target water level and flow rates.

3.04 DEMONSTRATION

A. Test for leaks and defects in the fish culture tanks and parts of existing piping that have been altered, extended or repaired. Perform hydrostatic testing in accordance with manufacturer’s instructions and test to design flow conditions. Repair leaks and defects with new materials and retest until satisfactory results are obtained.

00 00 00-1

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