Attachment 4 - Specifications.pdf

Repair Parade Grounds Irrigation System Ft. MacArthur HHEK-081036

REVISED: 6/11/2009 Ft. MacArthur, CA

SECTION 00010

TABLE OF CONTENTS

TECHNICAL SPECIFICATIONS

DIVISION 2 - SITE WORK

Section 02810 - Irrigation System

DIVISION 3 - CONCRETE

Section 03300 - Cast-in-Place Concrete

DIVISION 9 - FINISHES

Section 09900 - Painting and Protective Coatings

DIVISION 11 - EQUIPMENT

Section 11312 - Centrifugal Pumps

DIVISION 15 - MECHANICAL

Section 15060 - Piping and Pipe Fittings 15061 - Carbon Steel Pipe 15083 - Strainers 15086 - Air Release and Air/Vacuum Valves 15090 - Supports, Hangers, and Anchors 15100 - Valves 15105 - Pressure Sustaining Valve 15110 - Backflow Preventer 15120 - Turbine-type Water Meter 15164 - Flexible Connections

DIVISION 16 - ELECTRICAL

Section 16010 - Basic Electrical Requirements 16060 - Grounding 16111 - Conduit 16123 - Conductors 16141 - Wiring Devices 16150 - Motors 16190 - Supporting Devices 16482 - Motor Control Panels

DIVISION 17 - INSTRUMENTATION

Section 17020 - Description of Operation

17030 - Field Instruments

SECTION 03300

CAST-IN-PLACE CONCRETE

PART 1 - GENERAL

1.01 THIS SECTION covers:

A. Cast-in-place concrete work including bases for mechanical and electrical equipment and encasement for underground conduits.

B. Concrete finishing, patching, grouting, and crack repair.

C. Concrete curing.

1.02 SUBMITTALS.

A. Before purchase:

1. Manufacturer’s information sufficient in detail to demonstrate conformance with this specification.

2. Plans for job mix concrete.

B. UPON DELIVERY. Tickets.

1.03 REFERENCE STANDARD. ACI 301-89, Specifications for Structural Concrete for Buildings.

1.04 SOURCE QUALITY CONTROL

A. Use concrete from a Ready-Mix firm that has been in business for 5 years or more. Submit tickets from the firm indicating quality and quantity of concrete supplied.

B. Use prepackaged ready-mix concrete from a local supplier.

1.05 PRODUCT DELIVERY, STORAGE, AND HANDLING. Deliver materials in a timely manner to insure uninterrupted progress of work. Store materials in a manner that will preclude damage and permit ready access for inspection and identification. Contractor shall not use failure by the supplier to provide concrete in a timely manner, or the losses occurring as a result of such failure, as the basis for additional claims.

PART 2 - PRODUCT

2.01 CONCRETE: Compressive strength: 4,000 psi at 28 days.

A. Portland Cement. Standard brand of domestic Portland cement, ASTM C150, Type II.

B. Normal Weight (Stone) Aggregates.

1. Furnish natural aggregates free from opaline, chert, feldspar, iron pyrite, siliceous magnesium limestone or other deleterious or reactive substances. Conform to ASTM C33 except as modified herein. Fine aggregates shall pass a #4 sieve.

2. Maximum Sizes. Coarse aggregate sizes per Table 2 of ASTM C33 shall be No. 467 (11/2 inches), No. 57 (1 inch), or No. 67 (3/4 inch) as otherwise required by design, specifications and ASTM C-33, and except that coarse aggregate nominal maximum size shall not exceed one-fifth the narrowest dimension between sides of forms and reinforcing steel, one-third the depth of slabs, or three-fourths of minimum clear spacing between reinforcing bars.

C. Water. From a domestic potable source.

2.02 REINFORCING: Deformed bars conforming to ASTM A615, Grade 60

2.03 WELDED WIRE FABRIC: Conform to ASTM A185. Furnish in flat sheets. Welded wire fabric delivered to the site in rolls will be rejected.

2.04 TIE WIRE: Annealed steel, 14 gage minimum.

2.05 SUPPORTS AND ACCESSORIES: Use no aluminum, galvanized steel, plastic or stainless steel supports or accessories. Supports as herein specified shall conform to CRSI Manual of Standard

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Practice, Chapter 3, for Types SB, BB, BC, JC, HC, CHC, and others of standard types as required. Use precast concrete block supports with embedded wire ties or dowels may be used for placement on grade or on membranes.

2.06 LIQUID CURING COMPOUND. Use clear all-resin base conforming to ASTM C309.

2.07 SHEET CURING MATERIALS. ASTM C171, waterproof paper, polyethylene film or white burlap-polyethylene sheet, non-staining.

PART 3 - EXECUTION

3.01 GENERAL. It shall be the responsibility of the Contractor to mix, place, and cure concrete which shall be of 150 lb/cu. ft. nominal density and which shall attain the compressive strengths at 28 days as designated herein for use in various locations.

3.02 PREPARATION BEFORE PLACING

A. Remove excess water from forms before concrete is deposited. Divert any flow of water without washing over freshly deposited concrete. Remove hardened concrete, debris, and foreign materials from interior of forms and from inner surfaces of mixing and conveying equipment.

B. Reinforcement shall have been secured and inspected and approved. Embedded metal shall be free of old mortar, oils, mill scale, and other encrustations or coatings that might reduce bond.

Wheeled concrete-handling equipment shall not be wheeled over reinforcing nor shall runways be supported on reinforcing.

C. Wetting. Wet wood forms sufficiently to tighten up cracks. Wet other materials sufficiently to reduce suction and maintain concrete workability.

D. Existing Concrete Surfaces. For those surfaces to which new work is to be bonded, prepare surface as indicated in the drawings, clean surfaces to remove dirt and other deleterious substances which may contaminate or interfere with new work.

3.03 CONCRETE MIXING

A. Concrete shall be ready-mixed, supplied from an off-site commercial ready-mix plant approved by Contracting Officer, each load accompanied by a signed certificate listing the quantity of each concrete ingredient, admixture quantity, water content and slump, and time of loading and departure from ready-mix plant. Also include notations to indicate equipment was checked and found to be free of contaminants prior to batching.

B. Job Mixed Concrete. Contractor shall obtain the approval of the Contracting Officer for equipment and procedures proposed for job mixed concrete.

C. Consistency. Adjust quantity of water so concrete does not exceed 4 inches slump when placed or specified water cement ratio; use minimum necessary for workability required by the part of the structure being cast. Measure consistency of concrete in accordance with ASTM Cl43.

3.04 CONVEYING AND PLACING CONCRETE

A. Do not pour concrete until reinforcing steel and forms have been inspected and approved. Notify

Contracting Officer not less than one full working day in advance of readiness for inspection of forms and reinforcing. Handle or pump no concrete utilizing aluminum equipment.

B. Weather. Do not place concrete during rain unless approved measures are taken to prevent damage to concrete. Concrete placed during periods of dry winds, low humidity, high temperatures, and other conditions causing rapid drying shall be initially cured with a fine fog spray of water applied immediately after finishing and maintained until final curing operations are started. Also under hot weather conditions, steps shall be taken to reduce concrete temperature and water evaporation by proper attention to ingredients, production methods, handling, placing, protection, and curing. In no case shall the temperature of concrete being placed exceed 92°F.

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C. Conveying. Convey concrete in accordance with ACI 304. Do not drop concrete from its point of release at mixer, hoppers, tremies, or conveyances more than 3 feet, nor through reinforcing bars in a manner that causes segregation. Provide form windows, tremies, elephant trunks, and equivalent devices as required for placement and inspection. The use of chutes for conveying or depositing concrete is not allowed except for small isolated portions of the work and only with prior approval of Contracting Officer. Deposit concrete directly into conveyances and from conveyances to final points of repose. Deposit concrete so that the surface is kept level throughout, a minimum being permitted to flow from one portion to another.

D. Placing Concrete. Place concrete in accordance with ACI 304. Concrete shall be placed and consolidated within 90 minutes after water is first added to the mix, and no concrete shall be placed after there is evidence of initial set. Retempering of concrete is not allowed.

E. Consolidation. Effective consolidation shall be obtained by vibration, agitation, spading, and rodding until the concrete is free from voids, air bubbles, or rock pockets. Vibrators shall not be used to transport concrete within the forms.

3.05 CURING FORMED CONCRETE. Maintain forms containing concrete in a thoroughly wet condition until forms are removed. Maintain all concrete in a continuously moist condition for not less than 4 consecutive days after pouring. Keep concrete moist until protected by curing materials. Use water curing method, specified liquid membrane-forming compound with fugitive dye, or concrete curing paper or mats, all subject to approval for each specific use.

3.06 FINISHING FORMED CONCRETE

A. All exposed interior and exterior formed concrete shall have smooth rubbed finish in strict conformance with applicable requirements of Section 10.3.1 of ACI Standard 301-89. Concrete shall be finished no later than the day following form removal.

B. Immediately remove projections and offsets. Saturate form tie holes with water and fill voids with mortar of same mix as concrete (less coarse aggregate), cure, and dry..

3.07 FINISHING UNFORMED SURFACES

A. After proper and adequate vibration and tamping, unformed top surfaces of slabs, floors, walls, and curbs shall be brought to a uniform surface with suitable tools. The classes of finish indicated for unformed concrete surfaces are designated and defined as follows:

B. Finish Ul - Sufficient leveling and screeding to produce an even, uniform surface with surface irregularities not to exceed 1/8 inch. No further special finish is required.

3.08 CURING

A. General: Concrete shall be cured for not less than 7 days after placing, in accordance with the methods indicated herein.

B. Method 1: The surface shall be covered with burlap mats which shall be kept wet with water for the duration of the curing period, until the concrete in the walls has been placed. No curing compound shall be applied to surfaces cured under this method.

C. Method 2: The surface shall be sprayed with a liquid curing compound.

1. Curing compound shall not be used on concrete surfaces to be coated, waterproofed, moisture proofed, or where any coverings are to be bonded.

2. It shall be applied in accordance with the manufacturer's printed instructions at a maximum coverage rate of 200 square feet per gallon and in such a manner as to cover the surface with a uniform film which will seal thoroughly.

3. Where the curing compound method is used, care shall be exercised to avoid damage to the seal during the curing period. Should the seal be damaged or broken before the expiration of the curing period, the break shall be repaired immediately by the application of additional curing compound over the damage portion.

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4. Wherever curing compound may have been applied to surfaces against which concrete subsequently is to be placed and to which it is to adhere, said compound shall be entirely removed by wet sandblasting or chip hammer just prior to the placing of new concrete.

5. Prior to final acceptance of the WORK, visible traces of curing compound shall be removed from surfaces in such a manner that does not damage surface finish.

3.09 CHAMFERS AND FILLETS. Exposed edges of formed concrete structure shall be provided with a 3/4 inch by 3/4 inch chamfer, or shall be chamfered by means of a 3/8 inch radius rounding tool.

3.10 FIELD QUALITY CONTROL

A. Continuous Observation. Contracting Officer shall observe placement of concrete.

3.11 QUALITY OF WORK

A. Concrete work which is found to be in any way defective or out of tolerance may be ordered by the Contracting Officer to be removed and replaced. Should this occur all costs shall be paid by the Contractor.

B. Replacement of defective concrete shall be by Contractor and shall include all expense of additional testing and inspections required as a result of such defective concrete.

END OF SECTION 03300

SECTION 09900

PAINTING AND PROTECTIVE COATINGS

PART 1 - GENERAL

1.01 SUMMARY

A. THIS SECTION includes surface preparation and field painting of exterior surfaces. Provide labor, materials, apparatus, scaffolding, and appurtenant work in connection with painting and protective coatings, complete as indicated, specified and required.

B. Paint exposed surfaces, except where the drawings or specifications indicate that a surface or material is not to be painted or is to remain natural.

C. The following surfaces, in general, shall not be field painted:

1. Concrete surfaces subject to pedestrian or vehicular traffic.

2. Continuous footings for buildings

3. Slab portion outside of exterior walls of liquid retaining structures

4. Aluminum and stainless steel.

5. Factory finished surfaces.

6. Electrical and instrumentation equipment with approved factory finish or of stainless steel/nonferrous metal construction.

7. PVC piping located indoors.

8. Operating parts include moving parts of operating equipment

9. Labels: Do not paint over Underwriters Laboratories (UL), Factory Mutual (FM), or other code-required labels or equipment name, identification, performance rating, or nomenclature plates.

1.02 DEFINITIONS

A. The terms “paint,” “coatings,” and “finishes” as used herein, shall mean surface treatments, emulsions, enamels, paints, epoxy resins, and all other protective coatings, except galvanizing or anodizing whether used as a pretreatment, primer, intermediate coat, or finish coat. The term “DFT” means minimum dry film thickness.

B. Flat refers to a lusterless or matte finish with a gloss range below 15 when measured at an 85-degree meter.

C. Satin refers to low-sheen finish with a gloss range between 15 and 35 when measured at a 60-degree meter.

D. Semigloss refers to medium-sheen finish with a gloss range between 30 and 65 when measured at a 60-degree meter.

1.03 SUBMITTALS

Product Data: For each paint system specified. Include block fillers and primers.

A. Material List: Provide an inclusive list of required coating materials. Indicate each material and cross-reference specific coating, finish system, and application. Identify each material by manufacturer's catalog number and general classification.

B. Manufacturer's Information: Provide manufacturer's technical information, including label analysis and instructions for handling, storing, and applying each coating material proposed for use.

1.04 QUALITY ASSURANCE

A. Applicator Qualifications: Engage an experienced applicator who has completed painting system applications similar in material and extent to that indicated for this Project with a record of successful in-service performance.

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B. Source Limitations: Obtain block fillers, primers, and undercoat materials for each coating system from the same manufacturer as the finish coats.

1.05 DELIVERY, STORAGE, AND HANDLING

A. Deliver materials to the Project Site in manufacturer's original, unopened packages and containers bearing manufacturer's name and label, and the following information:

1. Product name or title of material.

2. Product description (generic classification or binder type).

3. Manufacturer's stock number and date of manufacture.

4. Contents by volume, for pigment and vehicle constituents.

5. Thinning instructions.

6. Application instructions.

7. Color name and number.

8. VOC content.

B. Store materials not in use in tightly covered containers in a well-ventilated area at a minimum ambient temperature of 45 deg F. Maintain containers used in storage in a clean condition, free of foreign materials and residue.

1.06 PROJECT CONDITIONS

A. Apply water-based paints only when the temperature of surfaces to be painted and surrounding air temperatures are between 50 and 90 deg F.

B. Apply solvent-thinned paints only when the temperature of surfaces to be painted and surrounding air temperatures are between 45 and 95 deg F.

C. Do not apply paint in rain, fog, or mist; or when the relative humidity exceeds 85 percent; or at temperatures less than 5 deg F above the dew point; or to damp or wet surfaces. Painting may continue during inclement weather if surfaces and areas to be painted are enclosed and within temperature limits specified by manufacturer during application and drying periods.

PART 2 - PRODUCTS

2.01 MANUFACTURERS

A. Available Products: Subject to compliance with requirements, products that may be incorporated into the Work include, but are not limited to, products listed in the paint schedules.

B. Manufacturers Names: The following manufacturers are referred to in the paint schedules by use of shortened versions of their names, which are shown in parentheses:

1. Devoe & Raynolds Co. (Devoe).

2. Fuller-O'Brien Paints (Fuller).

3. Glidden Co. (The) (Glidden).

4. Benjamin Moore & Co. (Moore).

5. Sherwin-Williams Co. (S-W).

6. 3M Corrosion Protection Products (3M).

2.02 PAINT MATERIALS, GENERAL

A. Material Compatibility: Provide block fillers, primers, undercoats, and finish-coat materials that are compatible with one another and the substrates indicated under conditions of service and application, as demonstrated by manufacturer based on testing and field experience.

B. Material Quality: Provide manufacturer's best-quality paint material of the various coating types specified. Paint-material containers not displaying manufacturer's product identification will not be acceptable.

C. Proprietary Names: Use of manufacturer's proprietary product names to designate colors or materials is not intended to imply that products named are required to be used to the exclusion of equivalent products of other manufacturers. Furnish manufacturer's material data and certificates of performance for proposed substitutions.

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D. Paint systems shall meet the latest South Coast Air Quality Management District’s VOC emission standards for protective coatings.

2.03 PATCH COAT FOR GALVANIZED SURFACES SERVICE CONDITION. Galvanized surfaces which are scratched, marred, or otherwise damaged shall be patched with alkyd zinc dust coating specifically formulated for galvanized patching.

2.04 COLORS. Match colors indicated by reference to manufacturer's color designations.

PART 3 - EXECUTION

3.01 EXAMINATION

A. Examine substrates, areas, and conditions, with the Applicator present, under which painting will be performed for compliance with paint application requirements.

1. Do not begin to apply paint until unsatisfactory conditions have been corrected and surfaces receiving paint are thoroughly dry.

2. Start of painting will be construed as the Applicator's acceptance of surfaces and conditions within a particular area.

B. Coordination of Work: Review other Sections in which primers are provided to ensure compatibility of the total system for various substrates. On request, furnish information on characteristics of finish materials to ensure use of compatible primers. Notify the Contracting Officer about anticipated problems using the materials specified over substrates primed by others.

3.02 PREPARATION

A. General: Remove hardware and hardware accessories, plates, machined surfaces, lighting fixtures, and similar items already installed that are not to be painted. If removal is impractical or impossible because of the size or weight of the item, provide surface-applied protection before surface preparation and painting. After completing painting operations in each space or area, reinstall items removed using workers skilled in the trades involved.

B. Cleaning: Before applying paint or other surface treatments, clean the substrates of substances that could impair the bond of the various coatings. Remove oil and grease before cleaning.

Schedule cleaning and painting so dust and other contaminants from the cleaning process will not fall on wet, newly painted surfaces.

C. Surface Preparation: Clean and prepare surfaces to be painted according to manufacturer's written instructions for each particular substrate condition and as specified.

1. Provide barrier coats over incompatible primers or remove and reprime.

2. Cementitious Materials: Prepare concrete, concrete masonry block, and cement plaster surfaces to be painted. Remove efflorescence, chalk, dust, dirt, grease, oils, and release agents. Roughen as required to remove glaze. If hardeners or sealers have been used to improve curing, use mechanical methods of surface preparation.

a. Use abrasive blast-cleaning methods if recommended by paint manufacturer.

b. Determine alkalinity and moisture content of surfaces by performing appropriate tests.

If surfaces are sufficiently alkaline to cause the finish paint to blister and burn, correct this condition before application. Do not paint surfaces where moisture content exceeds that permitted in manufacturer's written instructions.

3. Ferrous Metals: Clean ferrous-metal surfaces that have not been shop coated; remove oil, grease, dirt, loose mill scale, and other foreign substances. Use solvent or mechanical cleaning methods that comply with the Steel Structures Painting Council's (SSPC) recommendations.

a. Steel surfaces -- clean as recommended by paint system manufacturer and according to requirements of SSPC-SP 6.

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b. Touch up bare areas and shop-applied prime coats that have been damaged. Wire-brush, clean with solvents recommended by paint manufacturer, and touch up with the same primer as the shop coat.

4. Galvanized Surfaces: Clean galvanized surfaces with nonpetroleum-based solvents so surface is free of oil and surface contaminants.

5. Ductile iron pipe – Clean surface.

D. Materials Preparation: Mix and prepare paint materials according to manufacturer's written instructions.

1. Maintain containers used in mixing and applying paint in a clean condition, free of foreign materials and residue.

2. Stir material before application to produce a mixture of uniform density. Stir as required during application. Do not stir surface film into material. If necessary, remove surface film and strain material before using.

3. Use only thinners approved by paint manufacturer and only within recommended limits.

3.03 APPLICATION

A. General: Apply paint according to manufacturer's written instructions. Use applicators and techniques best suited for substrate and type of material being applied.

1. Paint colors, surface treatments, and finishes are indicated in the schedules.

2. Do not paint over dirt, rust, scale, grease, moisture, scuffed surfaces, or conditions detrimental to formation of a durable paint film.

3. Provide finish coats that are compatible with primers used.

4. The term "exposed surfaces" includes areas visible when permanent or built-in fixtures, convector covers, covers for finned-tube radiation, grilles, and similar components are in place. Extend coatings in these areas, as required, to maintain the system integrity and provide desired protection.

5. Paint surfaces behind movable equipment and furniture the same as similar exposed surfaces. Before the final installation of equipment, paint surfaces behind permanently fixed equipment or furniture with prime coat only.

6. Paint interior surfaces of ducts with a flat, nonspecular black paint where visible through registers or grilles.

7. Finish exterior doors on tops, bottoms, and side edges the same as exterior faces.

8. Sand lightly between each succeeding enamel or varnish coat.

B. Scheduling Painting: Apply first coat to surfaces that have been cleaned, pretreated, or otherwise prepared for painting as soon as practicable after preparation and before subsequent surface deterioration.

1. The number of coats and the film thickness required are the same regardless of application method. Do not apply succeeding coats until the previous coat has cured as recommended by the manufacturer. If sanding is required to produce a smooth, even surface according to manufacturer's written instructions, sand between applications.

2. Omit primer on metal surfaces that have been shop primed and touchup painted.

3. If undercoats, stains, or other conditions show through final coat of paint, apply additional coats until paint film is of uniform finish, color, and appearance. Give special attention to ensure edges, corners, crevices, welds, and exposed fasteners receive a dry film thickness equivalent to that of flat surfaces.

4. Allow sufficient time between successive coats to permit proper drying. Do not recoat surfaces until paint has dried to where it feels firm, does not deform or feel sticky under moderate thumb pressure, and where application of another coat of paint does not cause the undercoat to lift or lose adhesion.

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C. Application Procedures: Apply paints and coatings by brush, roller, spray, or other applicators according to manufacturer's written instructions.

1. Brushes: Use brushes best suited for the type of material applied. Use brush of appropriate size for the surface or item being painted.

2. Rollers: Use rollers of carpet, velvet back, or high-pile sheep's wool as recommended by the manufacturer for the material and texture required.

3. Spray Equipment: Use airless spray equipment with orifice size as recommended by the manufacturer for the material and texture required.

D. Minimum Coating Thickness: Apply paint materials no thinner than manufacturer's recommended spreading rate. Provide the total dry film thickness of the entire system as recommended by the manufacturer.

E. Prime Coats: Before applying finish coats, apply a prime coat of material, as recommended by the manufacturer, to material that is required to be painted or finished and that has not been prime coated by others. Recoat primed and sealed surfaces where evidence of suction spots or unsealed areas in first coat appears, to ensure a finish coat with no burn through or other defects due to insufficient sealing.

F. Pigmented (Opaque) Finishes: Completely cover surfaces as necessary to provide a smooth, opaque surface of uniform finish, color, appearance, and coverage. Cloudiness, spotting, holidays, laps, brush marks, runs, sags, ropiness, or other surface imperfections will not be acceptable.

G. Completed Work: Match approved samples for color, texture, and coverage. Remove, refinish, or repaint work not complying with requirements.

3.04 CLEANING

At the end of each workday, remove empty cans, rags, rubbish, and other discarded paint materials from the site. After completing painting, clean glass and paint-spattered surfaces.

Remove spattered paint by washing and scraping. Be careful not to scratch or damage adjacent finished surfaces.

3.05 PROTECTION

A. Protect work of other trades, whether being painted or not, against damage by painting. Correct damage by cleaning, repairing or replacing, and repainting, as approved by Contracting Officer.

B. Provide "Wet Paint" signs to protect newly painted finishes. Remove temporary protective wrappings provided by others to protect their work after completing painting operations. At completion of construction activities of other trades, touch up and restore damaged or defaced painted surfaces.

C Galvanized surfaces. Galvanized surfaces which are scratched, marred, or otherwise damaged shall be patched with alkyd zinc coating specifically formulated for galvanized patching.

3.06 PROCESS PIPING CODE

Exposed pipe shall be identified by labeling to show its function. Labels shall be of sufficient size so as to be readable from a distance of 30 feet. Labels shall spell out what the three letters in the piping label stand for. For example, a pipe labeled 6-WAS- 633-DI should be labeled “Waste Activated Sludge”.

3.07 EXTERIOR PAINT SCHEDULE

A. Ferrous Metal: Provide the following finish systems over exterior ferrous metal. Primer is not required on shop-primed items.

1. Semigloss, Acrylic-Enamel Finish: 2 finish coats over a rust-inhibitive primer.

a. Primer: Rust-inhibitive metal primer applied at spreading rate recommended by the manufacturer to achieve a total dry film thickness of not less than 1.3 mils.

1) Devoe: 13101 Mirrolac Rust Penetrating Metal Primer.

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2) Fuller: 621-04 Blox-Rust Alkyd Metal Primer.

3) Glidden: 5205 Glid-Guard Tank & Structural Primer, Red.

4) Moore: IronClad Retardo Rust-Inhibitive Paint #163.

b. First and Second Coats: Semigloss, exterior, acrylic-latex enamel applied at spreading rate recommended by the manufacturer to achieve a total dry film thickness of not less than 2.6 mils.

1) Devoe: 17XX Wonder-Shield Semi-Gloss Exterior Acrylic

Latex House and Trim Paint.

2) Fuller: 664-XX Weather King II Semi-Gloss House & Trim Paint.

3) Glidden: 6600 Series Spred Ultra Exterior Gloss Latex House & Trim Paint.

4) Moore: MoorGlo Latex House & Trim Paint #096.

B. Zinc-Coated Metal: Provide the following finish systems over exterior zinc-coated (galvanized) metal surfaces:

1. Semigloss, Acrylic-Enamel Finish: 2 finish coats over a galvanized metal primer.

a. Primer: Galvanized metal primer applied at spreading rate recommended by the manufacturer to achieve a total dry film thickness of not less than 1.2 mils.

1) Devoe: 8502/8520 Mirrolac-WB Interior/Exterior Waterborne

Flat DTM Primer and Finish.

2) Fuller: 621-05 Blox-Rust Latex Metal Primer.

3) Glidden: 5205 Glid-Guard Tank & Structural Primer, Red.

4) Moore: IronClad Galvanized Metal Latex Primer #155.

b. First and Second Coats: Semigloss, exterior, acrylic-latex enamel applied at spreading rate recommended by the manufacturer to achieve a total dry film thickness of not less than 2.6 mils.

1) Devoe: 17XX Wonder-Shield Semi-Gloss Exterior Acrylic

Latex House and Trim Paint.

2) Fuller: 664-XX Weather King II Semi-Gloss House & Trim Paint.

3) Glidden: 6600 Series Spred Ultra Exterior Gloss Latex House & Trim Paint.

4) Moore: MoorGlo Latex House & Trim Paint #096.

3.08 INTERIOR COATING:

A. Interior ferrous surfaces of valves and pump casings shall be coated with fusion bonded epoxy coating.

B. Fusion bonded epoxy. The coating material shall be a 100 percent powder epoxy, certified to

NSF Standard 61. The surface preparation shall be as listed in the coating system schedule of this Section. The coating shall be applied using the fluidized bed or electrostatic spray process.

Coating DFT = 12 mils, 3M Scotchkote 134 or 206N, or equal. For field repairs, the use of a liquid epoxy will be permitted, applied in not less than 3 coats to provide a DFT of 15 mils. The liquid epoxy coatings shall be a 100 percent solids epoxy recommended by the powder epoxy manufacturer."

3.09 TAPE COAT. Where the drawings indicate “Coat and Tape”, prime with Tapecoat “TC Coldprime” at a rate of 400 square feet per gallon. Tape with Tapecoat H 50 D, with ¼” minimum overlap.

3.10 COATING SYSTEM COLOR SCHEDULE

Service Paint Color Water piping Green Equipment Green

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Confirm color choice with Contracting Officer before purchase.

END OF SECTION 09900

SECTION 11312

CENTRIFUGAL PUMPS

PART 1 - GENERAL

1.01 THIS SECTION covers horizontally-mounted centrifugal pumps complete, including pumps, bases, and motors. Pumps are designed to act as constant speed pressure booster pumps with recirculation of part of the discharge back to the suction side of the pump.

0.01 SUBMITTALS.

A. Before purchase: Manufacturer’s information sufficient in detail to demonstrate conformance with this specification. Include pump curves.

B. Ten days before installation: Complete set of installation instructions.

C. After installation, and before project closeout: Operation and maintenance manuals. Spare parts.

1.03 DESIGN CONDITIONS.

Item Service Irrigation Water Pumped fluid Potable water Flowrate, gpm 138

Total Dynamic Head, feet 46 Minimum shutoff head, feet 58 Maximum shutoff head, feet 70 Min. efficiency, percent 60 Rotational speed (rpm, constant) 1,750 Minimum Motor horsepower*, HP 5 Type of Seals Mechanical Site elevation, (feet ASL**) 70 Normal temperature range (deg F) 35 to 100 Inlet pressure range (psi) 35-45

* Size motor to cover power over the entire operating range.

**ASL – Above sea level

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1.04 PUMP CURVE:

System curves for 3 differential pressures and a sample pump curve.

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0 50 100 150 200 250

Flow (GPM)

B oo st P re ss ur e re qu re d

(ft

Sample Pump Curve Dif=-15 Dif =-10 Dif =0

Design point – 138 gpm, 46 feet

Design pump curve. “Dif” is the difference between the design pressure at each lateral (45 psi) and an assumed supply pressure at the point of connection (POC). The pressure at the POC may vary between 45 psi and 60. Assume a loss of 15 psi at the RPPBF Preventer to get an approximate suction pressure range of 30-45 psi as shown in the table in paragraph 1.03 above.

PART 2 - PRODUCTS

2.01 GENERAL

A. Pumps shall be the centrifugal, single-stage type, with horizontal shafts, supplied mounted on a baseplate with a direct-coupled motor. Conform with ANSI B73.1.

B. Pumps and drives shall be rated for continuous duty and shall be capable of pumping the specified flow range without surging, cavitation, or vibration. The pumps shall not overload the motors for any point on the pump performance characteristic curve within the limits of stable pump operation as recommended by the manufacturer. Pump curve shall be continuously rising from high flow to low flow. Excessive vibration shall be sufficient cause for rejection of the equipment. The mass of the unit and its distribution shall be such that resonance at normal operating speeds is avoided. Parts of each pump shall be designed to withstand the stresses that will be imposed upon them during their handling, shipping, erection, and operation. Units shall be so constructed that dismantling and repairing can be accomplished without difficulty.

2.02 MATERIALS

A. General. Castings, fabrications, machined parts, and drives shall conform to the industry standards for strength and durability and shall be rated for continuous duty over the entire operating range. Ductile iron used in pump construction shall be ASTM A536 (60-40-18).

11312-2

B. Pump casings shall be ductile iron, horizontal-shaft, end suction, single-stage with centerline discharge design. The casings shall be designed to permit replacement of wearing parts. Pump casings shall be of uniform quality and free from blowholes, porosity, hard spots, shrinkage defects, cracks and other injurious defects. Defects in casings shall not be repaired except when such work is approved and is done by or under the supervision of the pump manufacturer, and then only when the defects are small and do not adversely affect the strength or use of the casing.

Casings shall be single-volute with flanged piping connections conforming to ANSI B16.42, Class 150. The direction of shaft rotation shall be conspicuously indicated. The casing shall be tapped for draining, and suction and discharge gauges. Drain openings in the volute, intake, or other passages capable of retaining trapped water shall be located in the low point of such passages.

C. Impellers shall be constructed of ductile iron carefully finished with smooth water passageways, and shall be statically and dynamically balanced. Impellers shall be securely keyed to the pump shaft.

D. Shaft shall be of high grade alloy steel (AISI 4140 or Type 316 SS), accurately machined, and shall be of sufficient size and strength to perform the work required. Renewable shaft sleeves shall be provided for protection of the shaft in contact with water, and in the stuffing boxes.

Shaft sleeves shall be keyed to the pump shaft with a stainless steel key and shall be sealed with an o-ring to prevent leakage between the shaft and shaft sleeve.

E. Pump bearings shall be ball or roller type designed to handle all thrust loads in either direction.

Pumps depending only on hydraulic balance end thrust will not be acceptable. Bearings shall have an L-10 life of 17,500 hours minimum at maximum load. Bearings shall be grease lubricated. Bearings shall be provided with fittings for a grease gun and, if the bearings are not easily accessible, with grease tubing extending to convenient locations. The grease fittings shall be of a type that prevent over lubrication and the buildup of pressure injurious to the bearings.

F. Stuffing box: The stuffing box or seal chamber shall be provided with mechanical seals for potable water applications. Mechanical seals shall be of a convoluted design that permits free movement and provides constant adjustment for shaft endplay and seal facewear. Positive face contact with the stationary seat shall be maintained at all times. Mechanical seals shall be furnished with a carbon steel ring, a ceramic mating ring, Viton elastomers, and metal parts of Type 316 stainless steel, Alloy 20, or Hastelloy B or C. Mechanical seals shall be rated for 250 psig. The elastomers shall be rated for temperature ranging from -20 to 400 degrees F. Suitable valve connecting lines or passages shall be provided on the upper half casing leading from the discharge volute to the stuffing box for lubricating the stuffing box with the fluid being pumped.

Mechanical seals shall be single seals as manufactured by John Crane (Type 1), Borg-Warner (Type L), or equal.

G. Couplings shall be of the flexible, three-piece spider type, keyed and locked to the shaft by means of set screws. The torque rating of the coupling shall exceed that developed by the driver. The vertical faces of the couplings shall be machined perpendicular to the axis of the shaft.

Disconnecting the couplings shall be accomplished without removing the driver half or the pump half of the couplings from the shaft. Flexible couplings shall not be used to compensate for misalignment of pump.

H. Fasteners shall be steel. Fasteners exposed to the liquid being pumped shall be stainless steel.

I. Coatings. Reference Section 09900 for pump casing exterior and baseplate. For pump interior:

One-part, heat-curable-semi-rigid, amine-cured, thermosetting powdered epoxy, NSF Standard 61 certified. Do not coat impeller.

J. Electric motors. Direct drive, TEFC, 208 Volts, 3-phase, 60 HZ, per section 16150.

2.03 PUMP DESIGN

A. Dimensions: ANSI Standard B73.1 A60 Design

11312-3

REVISED: 6/11/2009 CENTRIFUGAL PUMPS Ft. MacArthur, CA 11312-4

B. Opened impellers. Minimum impeller diameter: 7”.

C. Suction flange: 3” ANSI B16.42 Class 150 Ductile Iron D. Discharge flange: 2” ANSI B16.42 Class 150 Ductile Iron

2.04 SPARE PARTS. Furnish and deliver the following spare parts for each pump:

A. Two complete sets of gaskets and elastomer sealing rings.

B. One set of mechanical seal.

C. One bearing set (inboard and outboard)

2.05 MANUFACTURERS: Magnatex, Flowserve, Goulds, Peerless, or approved equal.

PART 3 - EXECUTION

3.01 INSTALLATION AND START-UP

A. If a condition of warranty requires the on-site service of the pump manufacturer or supplier, provide the services of competent factory-trained personnel to supervise the installation and initial operation. Include cost of this service in bid price.

B. Install pump-motor in conformance with pump supplier’s recommendations. Include base-plate grouting if recommended by the pump supplier. Include pump-motor alignment.

3.02 TESTING

A. Following completion of the installation and satisfactory start-up of the equipment, operate each pumping unit at the shut-off head, at the design operating point, at full flow with all valves in the discharge line open (representing the maximum flow the pump would normally pump), at a point between shut-off and design operating point, and at a point between design operating point and full flow.

B. Check and record pump and motor vibration. The full speed vibration of all pumps shall be equal to or less than the amplitude limits recommended in the Hydraulic Institute Standards or by the pump manufacturer, whichever is more restrictive.

C. Document each pump performance by obtaining concurrent readings for motor voltage and amperage, power draw in watts, pump discharge head, pump suction pressure, and pump flow rate. Construct pump curve. This curve shall match that submitted by the Contractor during the submittal review process. Contractor shall provide equipment and material necessary to obtain accurate (±2%) measurements.

D. If the equipment fails to meet specifications, replace the equipment and retest until specifications are met.

3.03 INSTRUCTION

After the equipment has been installed, tested, adjusted, and placed in satisfactory operating condition, instruct the Contracting Officer in the use and maintenance of the equipment. Give the Contracting Officer formal written notice of the proposed time of instruction at least 2 weeks before the beginning of the instruction period. Provide a level of instruction which is adequate to train the Contracting Officer’s personnel regarding use, maintenance, and repair of the equipment. Include the cost for this instruction in the bid price.

3.04 WARRANTY

The manufacturer shall warrant the units being supplied to the Contracting Officer against defects in material and workmanship for a period of 1 year under normal use, operation, and service

END OF SECTION 11312

SECTION 15060

PIPING AND PIPE FITTINGS

PART 1 - GENERAL

1.01 THIS SECTION is a general specification for pipe and pipe fittings. The requirements of this section apply to all Division 15 items. Additional requirements are given in other sections of this division. Where specifications in other sections are in conflict with this specification, Contractor shall adhere to the specifications in the other sections.

1.02 DIMENSIONS

A. Sizes shown are nominal diameter, unless indicated otherwise.

B. Drawings do not show all fittings, offsets, unions, hangers, supports, and the like. Provide such items as required to provide a neat, stable, and fully functional installation.

C. Where equipment is supplied with different fitting dimensions than those shown in the drawings, supply and install proper reducers/expanders and/or couplings as necessary to adapt to the designed pipe size. The adaptation shall be installed as close to the equipment as is reasonably possible.

0.01 SUBMITTALS.

A. Before purchase: Manufacturer’s information sufficient in detail to demonstrate conformance with this specification.

B. Ten days before installation: Complete set of installation instructions.

C. Ten days before hydrostatic testing: Testing plan.

D. Two days after testing: Testing results (in writing).

PART 2 - PRODUCTS

2.01 GENERAL

A. Pipe, fittings, couplings, and appurtenant items shall be new, free from defects or contamination, and wherever possible, shall be the standard product of the manufacturer. Like products shall be the standard product from a single manufacturer. They shall be furnished in pressure or thickness classes as specified or shown.

B. Pipe shall be furnished in a maximum of 20 foot lengths.

C. Flanges shall be flat-faced.

D. Bolts and nuts for flanges, joints and couplings shall be hot-dipped galvanized steel for above grade piping, and Corten® malleable iron for below-grade piping, unless specified otherwise.

E. Where pipe is furnished with screwed-on flanges, the flange is to be screwed tight on the pipe.

The flanges shall then be drilled, after attachment to the pipe, to insure bolt-hole alignment.

Exposed threads are to be coated with a corrosion resistant coating.

PART 3 - EXECUTION

3.01 DELIVERY, STORAGE, AND HANDLING

A. Acceptance at Site: Do not accept, nor store on site, items damaged in shipping.

B. Storage and Protection:

1. Store packaged items in their original packing until ready for use or installation.

2. Store pipe, valves, and fittings off the ground, protected from dirt and moisture, and protected from foreign material entering the ends.

3. Store and handle in such a manner, and with such equipment, to protect equipment, finishes, and coatings, both internal and external.

REVISED: 6/11/2009 PIPING AND PIPE FITTINGS FT. MACARTHUR, CA

15060- 1

3.02 EXAMINATION

A. Verify that conditions that will affect the installation of piping systems are as shown in the drawings. Bring the existence of anticipated deviations to the attention of the Contracting Officer.

B. Pipe Preparation and Handling:

1. Carefully inspect each pipe and fitting before the exposed pipe or fitting is installed or the buried pipe or fitting is lowered into the trench.

2. Inspect interior and exterior protective coating and patch damaged areas with material similar to the original, except damaged glass-lined pipe.

3. Do not use damaged glass-lined pipe. Remove damaged pipe promptly from the plant site.

4. Clean ends of pipe thoroughly. Remove foreign matter and dirt from inside of pipe and keep clean during and after laying.

5. Use proper implements, tools, and facilities for the safe and proper protection of the pipe.

Carefully handle pipe in such a manner as to avoid any physical damage to the pipe. Do not drop or dump pipe into trenches under any circumstances.

3.03 VERIFICATION OF DIMENSIONS

A. Excavate as necessary to reveal the locations of existing piping in the vicinity of the work. The dimensions given in the drawings are for reference when associated with existing piping. Adjust the dimensions as necessary to make the connections and clearances shown in the drawings.

B. Verify dimensions of valves and fittings to assure proper fit and conformance to the arrangements shown in the Drawings.

C. Prior to fabrication, accurately determine dimensions essential to:

a. Correctly locate pipe.

b. Fit pipe to equipment and valves.

c. Properly locate and orient pipe sleeves and wall castings.

d. Avoiding obstructions or conflicting with other Work.

3.04 WALL AND SLAB PENETRATIONS:

A. Where pipes are to pass through existing walls or slabs:

1. Size the penetration to accommodate the pipe plus an allowance for annular space.

2. Annular space shall be of a width large enough to allow installation of sealant but not so large that it adversely affects the structural integrity of the wall or results in sealant sagging.

3. Locate the penetration where it does not pass through structural framing elements.

4. Use a method for constructing the penetration that results in neat edges and does not adversely affect the structural integrity of existing structure.

B. Pipe passing through new concrete walls or slabs shall be installed through pipe sleeves.

1. Sleeve shall be cast into concrete. Sleeve shall be of PVC plastic.

2. Size the penetration to accommodate the pipe plus an allowance for annular space.

3. Annular space shall be of a width large enough to allow installation of sealant.

4. The annular space between the pipe and the sleeve or bare wall shall be sealed with an exterior-grade, polyurethane or silicon sealant.

3.05 PIPING THRUST PROTECTION:

A. Provide thrust restraint for all pipes, buried or unburied, whether indicated in the drawings or not.

Design shall incorporate a factor of safety of 3.0, based on the maximum working pressure of the pipe (exclusive of water hammer pressure).

B. Alternative thrust restraint systems:

1. Inherent nature of the joint. Threaded, flanged, and welded joints are considered to have sufficient thrust restraint, and no additional provision for thrust restraint is necessary.

2. Concrete blocks (3,000 psi concrete) for buried piping. Forms shall be used only on the sides of the block to restrain the flow of wet concrete. The block shall be formed directly

15060- 2 against undisturbed earth of the trench wall and against the pipe. Do not place concrete in water.

3. Joint harness for above-grade, push-on type joint pipe, including mechanical joints used with ductile iron piping. Use type appropriate for pipe material.

4. Pipe supports. Where pipe supports are shown on both sides of a push-on type joint, and those supports are sufficient for thrust restraint, no additional provision for thrust restraint is necessary.

3.06 PIPE INSTALLATION

A. Follow runs shown on the Drawings as closely as possible, except for minor adjustments to avoid architectural and structural features. Major relocations shall be approved by the Contracting Officer.

B. Install pipe, fittings, and valves in accordance with manufacturer's instructions and conventional good working practices.

C. Run piping parallel to the building walls in both the horizontal and vertical directions. Plumb vertical piping. Intermediate low points in a run are not allowed. Group parallel lines on the same horizontal or vertical plane.

D. Space piping to allow clearances for installation of flanges, fittings, and valves.

E. Securely plug ends of pipe at the completion of the workday to prevent entry of foreign objects or animals into the pipe.

F. In horizontal runs, install eccentric reducers with the straight side at top of piping system.

G. Connect dissimilar pipe materials by means of an adapting flexible coupling.

H. Above grade piping:

1. Support piping as shown in the drawings and as required to eliminate sags and stress on equipment at tie-in points, and on flexible couplings.

2. Where parallel pipes are supported by individual supports, align supports on adjacent piping.

3. Set pipe flanges level, plumb, and aligned and flanged fittings true and perpendicular to the axis of the pipe. Bolt holes in flanges shall straddle vertical centerline of pipes.

4. Install unions where required for piping or equipment installation, even though they may not be shown in the Drawings.

5. Install piping without springing or forcing the pipe in a manner which would set up stresses in the pipe, valves, or connected equipment.

I. Below grade piping.

1. Carefully lay pipe on the prepared bedding, in a controlled manner, and bed to ensure uniform bearing. Prepare bell holes as necessary.

2. Ensure proper placement and compaction of fill under the pipe haunches.

3. Prevent uplift and floating of the pipe prior to backfilling.

3.07 JOINTS

A. Tighten fasteners, using torque-limiting wrenches, to the torques recommended by the fitting manufacturer.

B. Where multiple fasteners are used…