36C25818B0337-004.pdf

08-01-17

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SECTION 23 10 00

FACILITY FUEL OIL SYSTEMS

600-18-3-5667-0801

PART 1 - GENERAL

. References to pressure are gauge pressure unless otherwise noted.

2. This specification covers all aboveground and underground fuel oil storage tanks, including day tanks, fuel and vent lines

1.1 DESCRIPTION

A. Diesel fuel oil, piping, and accessories located outside, underground (as shown on As-Built drawings of existing fuel & vent lines for Bldg-126.

Drawings, Drawings for Bldg-128 are unavailable.

B. Tank fluid level monitoring and alarm systems.

1.2 RELATED WORK, REFER TO VA TIL SPECIFICATIONS LISTED BELOW: VIEW RELATED

APPLICABLE SPCIFICATIONS AT VA WEBSITE’HTTPS://WWW.CFM.VA.GOV/TIL/’.

A. Section 01 00 00, General Requirements.

B. Section 01 33 23, Shop Drawings, product Data, and Samples.

C. Section 02 41 00, Demolition.

D. Section 03 30 53, Short Form CAST-IN-PLACE CONCRETE.

E. Section 26 05 11, Requirements for Electrical Installation.

F. Section 26 05 19, Low Voltage Electrical Power Conductors & Cables.

G. Section 26 27 26, Wiring Devices

H. Section 26 05 41, UNDERGROUND ELECTRICAL CONSTRUCTION.

I. Section 28 31 00, Fire Detection & Alarm

J. Section 31 20 00, EARTHWORK.

1.3 APPLICABLE PUBLICATIONS, REFER TO SPECIFICATION DETAILS FOR MATERIAL

PUBLICATION.

A. The publications listed below form a part of this specification to the extent referenced. The publications are referenced in the text by the basic designation only. Where conflicts occur these specifications and the

VHA standard will govern.

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B. American Society of Mechanical Engineers (ASME):

B16.5-2013..............Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard.

C. American Society for Testing and Materials (ASTM):

A53/A53M-2012...........Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and

Seamless

B62-2015................Standard Specification for Composition Bronze or Ounce Metal Castings

D2996-2015..............Standard Specification for Filament-Wound

“Fiberglass” (Glass-Fiber-Reinforced

Thermosetting-Resin) Pipe

D. National Electrical Manufacturers Association (NEMA):

250-2014................Enclosures for Electrical Equipment (1000 Volts

Maximum)

E. National Fire Protection Association (NFPA):

30-2015.................Flammable and Combustible Liquids Code

70-2014.................National Electrical Code (NEC)

F. Underwriters Laboratories Inc. (UL):

971-2008................Standard for Nonmetallic Underground Piping for

Flammable Liquids

1.4 SUBMITTALS

A. Submittals, including number of required copies, shall be submitted in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND

SAMPLES.

B. Information and material submitted under this section shall be marked

“SUBMITTED UNDER SECTION 23 10 00, FACILITY FUEL OIL SYSTEMS”, with applicable paragraph identification.

C. Manufacturer's Literature and Data including: Full item description and optional features and accessories. Include dimensions, weights, materials, applications, standard compliance, model numbers, size, and capacity.

D. Underground Tanks:

1. Drawings of tanks, anchoring devices, heating coils (if required), tank manholes, tank manhole enclosures, access doors for the tank manhole enclosures and all accessories. Include overall dimensions and dimensional locations and sizes of all anchoring devices, pipe connections, and access openings.

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2. Manufacturer's installation instructions describing recommended foundation, bedding and backfill material, support and anchoring devices, and method of installation.

3. Certification of compliance with specified standards.

4. Design and construction of tanks, secondary containment, pipe connections, manholes, anchoring devices, access doors for tank SPEC WRITER NOTE:

Delete the following paragraph in a non-seismic project.

E. Fuel Piping:

1. ASTM and UL compliance.

2. Grade, class or type, schedule number.

3. Manufacturer.

F. Pipe Fittings, Unions, Flanges:

1. ASTM and UL compliance.

2. ASTM standards number.

3. Catalog cuts.

4. Pressure and temperature rating.

G. Secondary Containment System for Fuel Piping:

1. Sizes, materials, construction of containment system including end seals, sumps, coatings and pipe supports.

2. Layout of system.

3. Installation instructions.

H. Tank Fluid Level Monitoring Instrumentation System:

1. Drawings showing instruments and in-tank sensing units, with dimensions.

2. Design and construction of all elements of system.

3. Installation instructions.

I. Tank and Piping Accessories: Design, construction, and dimensions of vent caps, fill boxes, fill caps, spill containers and other accessories.

J. Complete operating and maintenance manuals including wiring diagrams, technical data sheets, information for ordering replacement parts, and troubleshooting guide:

1. Include complete list indicating all components of the systems.

2. Include complete diagrams of the internal wiring for each item of equipment.

3. Diagrams shall have their terminals identified to facilitate installation, operation and maintenance.

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1.5 QUALITY ASSURANCE

A. Approval by Contracting Officer is required of products or services of proposed manufacturers, suppliers and installers, and will be based on

Contractor’s certification that:

1. Manufacturers regularly and currently manufacture tanks, tank and piping accessories, tank fluid level monitoring and leak detection systems, and fuel quality management systems.

B. Apply and install materials, equipment and specialties in accordance with

Manufacturer’s written instructions. Conflicts between the Manufacturer’s instructions and the contract SOW and specifications shall be referred to the COR for resolution. Provide copies of installation instructions to the

COR two weeks prior to commencing installation of any item.

C. All equipment shall be free from defects that would adversely affect the performance, maintainability and appearance of individual components or overall assembly.

D. Tanks, Secondary Containment Systems for Piping, Plastic Piping and

Containment Systems, Tank Level Monitoring Systems. Tank and piping installation contractor shall be certified as acceptable by local and state pollution control authorities.

E. Entire installation shall conform to requirements of local and state pollution control authorities.

F. Assembly of Glass Fiber Reinforced Plastic Piping: Installation personnel shall have been trained, tested and certified under a procedure approved by the manufacturer of the piping. Proof of certification, in writing, shall be provided to the COR.

G. Where specified codes or standards conflict, consult the COR.

H. Label of Conformance (definition): Labels of accredited testing laboratories showing conformance to the standards specified.

I. Equipment and materials installed shall be compatible in all respects with other items being furnished and with existing items so that the result will be a safe, complete and fully operational system which conforms to contract requirements and in which no item is subject to conditions beyond its design capabilities.

1.6 AS-BUILT DOCUMENTATION (SUPPLEMENTAL REQUIREMENTS TO GENERAL REQUIREMENTS

SPECIFICATION SECTION 01 00 00)

A. Submit manufacturer’s literature and data updated to include submittal review comments and any equipment substitutions.

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B. Submit operation and maintenance data updated to include submittal review comments, VA approved substitutions and construction revisions shall be in electronic version on CD or DVD and inserted into a three-ring binder. All aspects of system operation and maintenance procedures, including applicable piping isometrics, wiring diagrams of all circuits, a written description of system design, control logic, and sequence of operation shall be included in the operation and maintenance manual. The operations and maintenance manual shall include troubleshooting techniques and procedures for emergency situations. Notes on all special systems or devices shall be included. A List of recommended spare parts

(manufacturer, model number, and quantity) shall be furnished. Information explaining any special knowledge or tools the owner will be required to employ shall be inserted into the As-Built documentation.

C. The installing contractor shall maintain as-built drawings of each completed phase for verification; and, shall provide the complete set at the time of final systems certification testing. Should the installing contractor engage the testing company to provide as-built or any portion thereof, it shall not be deemed a conflict of interest or breach of the

‘third party testing company’ requirement. Provide record drawings as follows:

1. Red-lined, hand-marked drawings are to be provided, with one paper copy and a scanned PDF version of the hand-marked drawings provided on CD or

DVD.

2. As-built drawings are to be provided, with a copy of them on AutoCAD version provided on CD or DVD. The CAD drawings shall use multiple line layers with a separate individual layer for each system.

3. As-built drawings are to be provided, with a copy of them in three-dimensional Building Information Modeling (BIM) software version provided on CD or DVD.

D. The as-built drawings shall indicate the location and type of all lockout/tagout points for all energy sources for all equipment and pumps to include breaker location and numbers, valve tag numbers, etc.

Coordinate lockout/tagout procedures and practices with local VA requirements.

E. Certification documentation shall be provided to COR 21 working days prior to submitting the request for final inspection. The documentation shall include all test results, the names of individuals performing work for the

23 10 00 - 6 testing agency on this project, detailed procedures followed for all tests, and provide documentation/certification that all results of tests were within limits specified. Test results shall contain written sequence of test procedure with written test results annotated at each step along with the expected outcome or setpoint. The results shall include all readings, including but not limited to data on device (make, model and performance characteristics), normal pressures, switch ranges, trip points, amp readings, and calibration data to include equipment serial numbers or individual identifications, etc.

1.7 PERMITS

A. Contractor shall obtain and complete all tank permit and registration forms required by governmental authorities (including State of CA and/or

City Of Long Beach, CA).

PART 2 - PRODUCTS

2.1 UNDERGROUND STEEL TANKS

A. Pipe Connections to Tanks:

1. Conform to UL 58.

2. Pipe sizes 100 mm (4 inches) and smaller, threaded. Pipe sizes 150 mm (6 inches) and larger, raised faced slip-on flanges, 1034 kPa (150 psig) ASME rating.

3. All tank piping connections, except vent, shall be within the tank manhole enclosure.

2.2 UNDERGROUND FIBERGLASS REINFORCED PLASTIC TANKS

A. Pipe Connections to Tanks:

1. Conform to UL 1316.

2. Pipe sizes 100 mm (4 inches) and smaller, threaded. Pipe sizes 125 mm (5 inches) and larger, 1034 kPa (150 psig) ASME flanged.

3. Provide and coordinate tank connection quantities, sizes and types with requirements of level gauge unit; tank leak detector; sounding rod; vent, fill, supply and return pipes; and other pipes as shown.

4. All tank piping connections shall be within the tank manhole enclosures and sump/risers.

2.3 SOIL SEPARATOR MAT

A. Material: Porous, non-woven polypropylene geotextile, Weight: 135 g per

sq. meter (4 ounces per square yard), resistant to all alkalies and weak acids.

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2.4 TANK AND PIPING ACCESSORIES

A. Vent Caps: Galvanized cast iron or cast aluminum with brass or bronze screens, arranged to permit full venting and to prevent entry of foreign material into the vent line. Same pipe size as vent pipe.

2.5 PIPING, VALVES, FITTINGS

A. Fuel supply and return, tank fill, vents, sounding, and pump out.

B. Glass Fiber Reinforced Plastic (FRP) Pipe and Fittings:

1. Conform to UL 971 and ASTM D2996 using a filament-winding process and epoxy or vinyl ester resins.

2. Design pipe, fittings and joining system for required fuel service, 65 degrees C (150 degrees F), 1034 kPa (150 psig) pressure, 68 kPa (20 inches

Hg) vacuum.

3. Provide an integral resin-rich liner, 0.5 mm (0.020 inches) minimum thickness to enhance the corrosion resistance. Outer layer shall include ultra-violet inhibitors. Joining adhesive shall be designed for the pipe furnished and shall be supplied by the pipe manufacturer.

4. Plastic piping allowed in underground use only.

C. Check Valves - Fuel Pump Suction.

1. Pipe Sizes 50 mm (2 inches) and under: Rated for 1375 kPa (200 psig) water-oil-gas, swing-type, threaded ends, ASTM B62 bronze body. Provide union adjacent to valve.

2. Pipe Sizes 65 mm (2-1/2 inches) and above: Rated for 1380 kPa (200 psig) water-oil-gas, swing-type, 861 kPa (125 pounds) ASME flanged ends, ASTM

A126 class B cast iron body.

2.6 LEAK DETECTION SYSTEMS

A. Automatic digital continuous monitoring systems responsive to the presence of water and hydrocarbons in the interstitial space of the double-wall tanks, in the tank manhole access enclosures, and in the secondary containment of fuel piping systems. System shall distinguish between hydrocarbon and water and identify location of leak as to individual tank and piping system. System may be combined with tank fluid level monitor and alarm system specified in paragraph, TANK FLUID LEVEL MONITOR AND

ALARM SYSTEM.

B. Functions and Arrangement:

1. Single control station to monitor all sensing probes.

2. Visual indicator to monitor and identify leaks as water or hydrocarbon and location.

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3. Indicators showing system status including faults and alarms.

4. On board printer that provides complete reports of all system functions upon command.

5. Panel circuit test button.

6. 95 dB audible alarm with silencing control to sound when leak is detected.

7. Eight-hour memory backup system with battery.

8. NEMA 250 Type 4 cabinet.

9. UL or other accredited testing laboratory listing.

C. Sensors:

1. Designed for required locations including: Insertion between walls of double-wall tanks, in sumps in double-wall piping systems and in tank manhole enclosures. Sensing points shall be at lowest point of each tank or sump. Intrinsically safe design.

2. Sensing units shall detect presence of water and a minimum 3.2 mm (1/8 inch) thick layer of hydrocarbon on surface of water and minimum 50 mm (2 inch) thickness of hydrocarbon in area that has no water present.

3. Sensors shall be arranged to allow replacement of individual sensors without disturbing other portions of leak detection system or fuel storage and piping system. Underground sensors shall be accessed through caps as grade.

4. Materials of construction shall be non-corroding.

5. Transmit status signal to control unit.

2.7 TANK FLUID LEVEL MONITOR AND ALARM SYSTEMS

A. Digital systems for central monitoring of fuel and water levels in all fuel oil storage tanks in the project. High and low level visual and audible alarms. Volumetric tank-tightness testing. Complete with all transducing, transmitting, and receiving devices. On board printer to provide complete report of all system functions upon command. System may be combined with leak detection system specified in paragraph, LEAK

DETECTION SYSTEMS.

B. Fluid Level Monitor:

1. Digital continuous readout, showing tank oil and water levels in liters, gallons, smallest reading one liter, & one gallon. Provide identification of product measured, measuring units, and the tank number.

2. Tank and fuel characteristics contained in preprogrammed non-volatile field-replaceable databases. Protected power supply.

C. High and Low Fluid Level Alarm System:

1. Automatic continuous on-line monitoring of all tanks.

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2. Visual and audible indicators combined with fluid level monitor. Identify the tank that is in alarm condition.

3. Manual alarm test and silencing controls.

4. Low level alarm actuation adjustable 0-25 percent of tank capacity. High level alarm actuation adjustable 75-100 percent of tank capacity.

D. Locate all indicators, selector switches, alarms on face of wall-mounted

NEMA 250, Type 4 panel.

E. Remote Alarm Annunciator:

1. Visual and audible high-level alarms adjacent to tank fill box locations.

Locate in NEMA 250 Type 4X weatherproof exterior wall or pole-mounted panels.

2. Alarm shall include flashing red light with 180-degree visibility for each tank and 95 dB horn or 100 mm (4 inch) diameter bell. Provide alarm silence control.

3. Provide identification sign: "WHEN ALARM SOUNDS - FUEL TANK FILLED TO

CAPACITY - DO NOT OVERFILL".

F. Modbus communication to engineering control system, boiler plant computer workstation to indicate tank fluid level and alarm conditions. Telephone modem communication capability.

G. System Performance: Accuracy plus or minus 2.5 mm (0.10 inch) of fluid height in inventory mode and 0.25 mm (0.01 inch) in leak detection mode.

Automatic compensation for fluid temperature changes. Volumetric tank tightness sensitivity of 0.4 lph (0.1 gph).

H. Sensors:

1. Provide sensor types such as magnetostrictive, capacitance, float, hydrostatic and other types as necessary for the applications.

2. Apply in accordance with manufacturer’s instructions with provisions for easy future replacement without need for excavation.

3. Provide for each hydrostatic sensor a constant flow differential pressure regulator and transmitter protected from fuel contamination. Air supply shall include filter and over-pressure protection. Provide desiccant-type dryer on air supply designed for removal of water vapor. Dryer rating, minimum 4.6 L/s (10 SCFM). Provide moisture indicator. Dryer may be deleted if air supply source has a refrigerated dryer.

4. Float-type units shall be designed for installation and removal through a

100 mm (4 inch) diameter vertical pipe mounted in the top of the tank.

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I. Underground Wiring and Piping: Enclose in water-tight corrosion-resistant conduit system sized and arranged as recommended by system manufacturer and conforming to Section 26 05 41, UNDERGROUND ELECTRICAL CONSTRUCTION.

J. Code Conformance: NFPA 70.

2.8 BURIED UTILITY WARNING TRACING TAPE

A. Tape shall be 0.1 mm (0.004 inch) thick, 150 mm (6 inches) wide, yellow polyethylene with a metallic core, acid and alkali-resistant and shall have a minimum strength of 12,000 kPa (1740 psig) lengthwise and 10,342 kPa (1500 psig) crosswise with an elongation factor of 350 percent.

Provide bold black letters on the tape identifying the type of system.

Insulating and labeling shall be unaffected by moisture and other substances contained in the backfill material.

PART 3 - EXECUTION

3.1 GENERAL

A. If an installation is unsatisfactory to the COR, the Contractor shall correct the installation at no additional cost or time to the Government.

3.2 INSTALLATION AND TESTING, UNDERGROUND STEEL TANKS

A. Conform to NFPA 30 or NFPA 31 as applicable.

B. Prior to backfilling, repair all damage to tank coating with the same coating material. Coat all metal parts that will be below grade, including tie-down fittings and straps, bolts, rings, pipes, with the tank coating material. Perform 10,000-volt holiday test on all areas of coating which have been repaired.

C. Excavation, trenching and backfilling around the tanks is specified under

Section 31 20 00, EARTHWORK. Backfill material shall be same as bedding material and shall conform to printed instructions of tank manufacturer.

In addition, there shall be no stones, ashes, or corrosive materials in contact with the tanks. Unstable and unsuitable soil shall be removed and replaced with suitable material. Provide a soil separation mat to keep soil separate from sand and pea gravel. Minimum depth of cover shall conform to NFPA 30 or NFPA 31 as applicable. After completion of backfilling, measure tanks internally for out-of-roundness (deflection).

3.3 INSTALLATION AND TESTING, UNDERGROUND PIPING SYSTEMS

A. Leak Detection System: Arrange fuel and tracing media (if required for heated oil) carrier piping, enclosed in secondary containment piping, to accommodate leak detection system. Slope piping down toward tanks and leak detectors at 25 mm in 12 m (1 inch in 40 feet).

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B. Steel Fuel and Tracing Media Carrier Piping: All joints butt or socket welding. Threaded piping is prohibited. Piping ends shall be accurately cut, true, and beveled for welding.

C. Glass Fiber Reinforced Plastic (FRP) Fuel Carrier Piping and Secondary

Containment Piping: Install in accordance with printed instructions of pipe manufacturer. Installation personnel trained in accordance with paragraph, QUALITY ASSURANCE. Plastic piping is prohibited in the same secondary containment system with steam or condensate piping.

D. Secondary Containment Piping:

1. Provide sand bedding and backfill material for steel piping and pea gravel for FRP piping.

2. Top of system 450 mm (18 inches) minimum below grade.

3. Design and locate leak detector sumps to intercept all potential leakage.

Maximum spacing along each system, 3000 mm (10 feet).

4. Seal all building and manhole wall penetrations with a modular, watertight flexible penetration seal system. The modular penetration seal shall have a nitrile rubber seal, or if a fire separation is required, a high temperature silicone fire seal.

5. After placing system, prior to backfill, repair all damage, including coatings, as recommended in printed instructions of system manufacturer.

Perform 10,000-volt holiday test on coated steel systems.

6. Fuel oil piping is prohibited in the same secondary containment system as steam or condensate piping.

E. Leak Test: Test carrier pipes with air pressure at 690 kPa (100 psig), and test the containment piping with air pressure at 55 kPa (8 psig). Systems shall hold the pressure for 30 minutes. Repair all leaks and retest.

F. Coatings for Steel Piping not in Secondary Containment System: Provide urethane coating and cathodic protection.

3.4 INSTALLATION AND TESTING, LEAK DETECTOR SYSTEMS FOR TANKS AND PIPING

A. Wiring shall conform to NFPA 70.

B. Locate control monitor panels 1500 mm (5 feet) above the floor on inside wall of boiler room, generator room or garage, depending on type of fuel tank served, unless shown otherwise.

C. Test operation of each probe, and monitoring system with fuel and water.

If type of probe utilized is damaged by exposure to fuel, provide temporary probe for testing monitoring system.

3.5 INSTALLATION, TANK FLUID LEVEL INDICATOR AND ALARM SYSTEM

A. Wiring shall conform to NFPA 70.

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B. Locate level indicator and alarm panel 1500 mm (5 feet) above the floor on inside wall of boiler room, generator room or garage, depending on type of fuel tank served, unless shown otherwise.

C. Locate remote high-level alarm on exterior wall or pole in view of tank fill point, 2400 mm (8 feet) above grade.

3.6 INSTALLATION, BURIED UTILITY WARNING TRACING TAPE

A. Install tracer wire in the trench approximately 457 mm (18 inches) above the non-metallic pipe. The tracer wire shall be taped approximately every

3 m (10 feet) to the pipe, where practical. The tracer wire shall be installed so that electrical continuity is maintained throughout the pipe system. As few connections as possible shall be made in the tracer wire.

The wire shall be contiguous except at test stations, valve boxes, and where splicing is required. All splices shall be encased. Connections will be made by stripping the insulation back one inch and joining the two ends using an approved mechanical connector and a split bolt connector.

Twisting of copper wire is prohibited. To complete this connection, wrap all exposed wire thoroughly with electrical tape. A minimum 1.5 m (5 foot) of additional tracer wire will be coiled, buried and terminate aboveground at the ends of the pipeline.

3.7 STARTUP AND TESTING

A. Perform tests as recommended by product manufacturer and listed standards and under actual or simulated operating conditions and prove full compliance with design and specified requirements. Tests of the various items of equipment shall be performed simultaneously with the system of which each item is an integral part.

B. When any defects are detected, correct defects and repeat test at no additional cost or time to the Government.

C. The Commissioning Agent will observe startup and contractor testing of selected equipment. Coordinate the startup and contractor testing schedules with COR and Commissioning Agent. Provide a minimum notice of 10 working days prior to startup and testing.

D. Test Report: Provide complete report to COR showing all test measurements, calculations, list of instruments used.

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