Amend-0001-TechSpec.pdf

Lower Granite Dam Wastewater Treatment W912EF-14-B-0004 Amend-0001

SECTION TABLE OF CONTENTS

DIVISION 33 - UTILITIES

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SANITARY SEWERS

PART 1 GENERAL

1.1 REFERENCES

1.2 SYSTEM DESCRIPTION

1.2.1 Sanitary Sewer Gravity Pipeline

1.2.2 Sanitary Sewer Pressure Lines

1.3 SUBMITTALS

1.4 QUALITY ASSURANCE

1.4.1 Installer Qualifications

1.4.2 Drawings

1.5 DELIVERY, STORAGE, AND HANDLING

1.5.1 Delivery and Storage

1.5.1.1 Piping

1.5.2 Handling

PART 2 PRODUCTS

2.1 PIPELINE MATERIALS

2.1.1 Ductile Iron Pressure Piping

2.1.1.1 Ductile Iron Pressure Pipe

2.1.1.2 Ductile Iron Fittings

2.1.1.3 Ductile Iron Pressure Joints and Jointing Materials

2.1.2 High Density Polyethylene (HDPE) Piping

2.1.2.1 High Density Polyethylene (HDPE) Pipe

2.1.2.2 HDPE Fittings

2.1.2.3 HDPE Joints

2.1.3 PVC Plastic Gravity Sewer Piping

2.1.3.1 PVC Plastic Gravity Pipe and Fittings

2.1.3.2 PVC Plastic Gravity Joints and Jointing Material

2.1.4 PVC Plastic Pressure Pipe and Associated Fittings

2.1.4.1 PVC Plastic Pressure Pipe and Fittings

2.1.5 Stainless Steel Pipe and Fittings

2.2 VALVES AND APPURTENANCES

2.2.1 Eccentric Plug Valves

2.2.2 Gate Valves

2.2.3 Valve Boxes

2.3 PRECAST CONCRETE MANHOLES

2.3.1 Precast Concrete Risers, Base Sections and Tops

2.3.2 Gaskets and Connectors

2.3.3 Metal Items

2.3.3.1 Frames, Covers and Gratings for Manholes

2.3.3.2 Manhole Steps

2.4 FIBERGLASS REINFORCED PLASTIC (FRP) TANKS

2.4.1 Loading Conditions - tanks designed and constructed for underground installation shall meet the following design criteria.

2.4.1.1 Internal Load

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2.4.1.2 Surface Loads

2.4.1.3 External Hydrostatic Pressure and Burial Depth

2.4.1.4 Accessory Equipment

2.4.1.5 Structural Integrity

2.4.2 Tank Materials, Capability, and Function

2.4.3 Accessories

2.4.3.1 Access Opening

2.4.3.2 Piping and Fittings

2.4.3.3 Lifting Lugs

2.4.3.4 Baffle Walls

2.4.3.5 Attached Access Risers

2.4.3.6 Access Lids and Insulation Plugs

2.4.3.7 Anchoring

2.5 EFFLUENT FILTERS

2.6 DOSING PUMP SYSTEM

2.6.1 Dosing Pumps

2.6.1.1 Performance Characteristics

2.6.1.2 Pump Design

2.6.2 Dosing Pump Control System

2.6.2.1 Enclosure

2.6.2.2 Liquid Level Float Switches

2.6.2.3 Pressure/Level Transmitter

2.6.2.4 Programmable Logic Controllers

2.6.2.5 Motor Controls, General

2.6.2.6 Motor Controls Elements

2.6.2.7 Nameplates

2.6.2.8 Indicating Lights

2.6.2.9 Push-Buttons and Selector Switches

2.6.2.10 Relays, Control

2.6.2.11 Relays, Power Fail

2.6.2.12 Relays, Probe

2.6.2.13 Relays, Time Delay

2.6.2.14 Terminal and Distribution Blocks

2.6.3 Pump Vault

2.6.4 Discharge Assembly

2.7 DRAINFIELD COMPONENTS

2.7.1 Distributing Valve and Enclosure

2.7.2 Piping, Fittings, and Valves

2.7.2.1 Ball Valves

2.7.2.2 Check Valves

2.8 COATINGS FOR DUCTILE IRON PIPE

2.8.1 Outside Pipe Shop Holding Primer

2.8.2 Outside Pipe Intermediate and Finish Coatings

2.9 PIPE AND VALVE IDENTIFICATION

2.10 MANUAL SLUDGE SAMPLER AND ACCESSORIES

2.11 ORIFICE SHIELD

2.12 LOCATION MARKERS

2.12.1 Sewer

2.12.2 No Vehicles

2.13 PIPE PENETRATIONS

2.13.1 Mechanical Annular Seal

2.13.2 Non-Shrink Grout

2.14 FLOW METER AND ENCLOSURE

PART 3 EXECUTION

3.1 INSTALLATION OF PIPELINES AND APPURTENANT CONSTRUCTION

3.1.1 General Requirements for Installation of Pipelines

3.1.1.1 Required Separation between Potable Water Lines and

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Sanitary Sewers

3.1.1.2 Earthwork

3.1.1.3 Pipe Laying and Jointing

3.1.1.4 Connections to Existing Lines

3.1.1.5 Pipe Penetrations

3.1.1.6 Exposed Piping Installation

3.1.2 Special Requirements

3.1.2.1 Installation of Ductile-Iron Pressure Lines

3.1.2.2 Installation of PVC Plastic Piping

3.1.2.3 Installation of PVC Plastic Pressure Pipe and Fittings

3.1.2.4 Installation of High Density Polyethylene Pipe (HDPE)

3.1.3 Sewage Absorption Trench Construction

3.2 VALVE INSTALLATION

3.2.1 Exposed Valve Installation

3.2.2 Buried Valve Installation

3.3 COATINGS FOR DUCTILE IRON PIPE

3.3.1 Preparation of Steel Surfaces

3.3.2 Application

3.3.3 Inspection

3.3.3.1 Dry Film Thickness

3.3.3.2 Documentation

3.3.3.3 Coating Schedule

3.4 FIBERGLASS UNDERGROUND TANKS

3.5 DOSING PUMP SYSTEM OPERATION AND CONTROL

3.5.1 General Operation

3.5.2 Control Panel Devices

3.5.3 Operation Display

3.5.4 Alarm Capabilities

3.5.5 Central Operator Station Alarms and Status Indications

3.5.6 Float Placement and Operation Settings

3.6 FIELD QUALITY CONTROL

3.6.1 Field Tests and Inspections

3.6.2 Hydrostatic/Leakage Tests for Piping

3.6.2.1 General

3.6.2.2 Buried Piping

3.6.2.3 Exposed Piping

3.6.2.4 Time for Making Test

3.6.3 Hydrostatic Tests of Fiberglass Underground Tanks

3.7 Testing of Dosing and Drainfield System

3.7.1 Squirt Test

3.7.2 Dosing System Test

3.8 TESTING NEW TO EXISTING CONNECTIONS

3.9 INSTALLATION OF PIPE AND VALVE IDENTIFICATION

3.10 LOCATION MARKERS

3.11 FINAL CLEANING

3.11.1 Interim Cleaning

3.11.2 Flushing

ATTACHMENTS:

test worksheets

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SANITARY SEWERS

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ACI INTERNATIONAL (ACI)

ACI 318 (2011; Errata 2011; Errata 2012) Building Code Requirements for Structural Concrete and Commentary

AMERICAN WATER WORKS ASSOCIATION (AWWA)

AWWA C104/A21.4 (2008; Errata 2010) Cement-Mortar Lining for Ductile-Iron Pipe and Fittings for Water

AWWA C110/A21.10 (2012) Ductile-Iron and Gray-Iron Fittings for Water

AWWA C111/A21.11 (2012) Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings

AWWA C115/A21.15 (2011) Flanged Ductile-Iron Pipe With Ductile-Iron or Gray-Iron Threaded Flanges

AWWA C151/A21.51 (2009) Ductile-Iron Pipe, Centrifugally Cast, for Water

AWWA C153/A21.53 (2011) Ductile-Iron Compact Fittings for Water Service

AWWA C207 (2007) Standard for Steel Pipe Flanges for Waterworks Service-Sizes 100 mm through 3600 mm 4 in. through 144 in.

AWWA C504 (2010) Standard for Rubber-Seated Butterfly Valves

AWWA C507 (2011) Ball Valves, 6 Inch Thru 60 Inch (150 mm Thru 1,500 mm)

AWWA C509 (2009) Resilient-Seated Gate Valves for Water Supply Service

AWWA C550 (2005; Errata 2005) Protective Epoxy Interior Coatings for Valves and Hydrants

AWWA C600 (2010) Installation of Ductile-Iron Water Mains and Their Appurtenances

AWWA C605 (2005) Underground Installation of Polyvinyl Chloride (PVC) Pressure Pipe and Fittings for Water

AWWA C901 (2008) Polyethylene (PE) Pressure Pipe and Tubing, 1/2 In. (13mm) Through 3 In. (76 mm), for Water Service

AWWA M23 (2002; 2nd Ed) Manual: PVC Pipe - Design and Installation

ASME INTERNATIONAL (ASME)

ASME B1.20.1 (1983; R 2006) Pipe Threads, General Purpose (Inch)

ASME B16.1 (2010) Gray Iron Pipe Flanges and Flanged Fittings Classes 25, 125, and 250

ASME B16.5 (2009) Pipe Flanges and Flanged Fittings:

NPS 1/2 Through NPS 24 Metric/Inch Standard

ASME B18.2.2 (2010) Standard for Square and Hex Nuts

ASME B18.5.2.1M (2006; R 2011) Metric Round Head Short Square Neck Bolts

ASME B18.5.2.2M (1982; R 2010) Metric Round Head Square Neck Bolts

ASME B31.3 (2012) Process Piping

ASTM INTERNATIONAL (ASTM)

ASTM A126 (2004; R 2009) Standard Specification for Gray Iron Castings for Valves, Flanges, and Pipe Fittings

ASTM A307 (2012) Standard Specification for Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength

ASTM A47/A47M (1999; R 2009) Standard Specification for Ferritic Malleable Iron Castings

ASTM A48/A48M (2003; R 2012) Standard Specification for Gray Iron Castings

ASTM A536 (1984; R 2009) Standard Specification for Ductile Iron Castings

ASTM A563 (2007a) Standard Specification for Carbon and Alloy Steel Nuts

ASTM C443 (2011) Standard Specification for Joints for Concrete Pipe and Manholes, Using

Rubber Gaskets

ASTM C478 (2013) Standard Specification for Precast Reinforced Concrete Manhole Sections

ASTM C94/C94M (2013a) Standard Specification for Ready-Mixed Concrete

ASTM D1784 (2011) Standard Specification for Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlorinated Poly(Vinyl Chloride) (CPVC) Compounds

ASTM D1785 (2012) Standard Specification for Poly(Vinyl Chloride) (PVC), Plastic Pipe, Schedules 40, 80, and 120

ASTM D2241 (2009) Standard Specification for Poly(Vinyl Chloride) (PVC) Pressure-Rated Pipe (SDR Series)

ASTM D2321 (2011) Standard Practice for Underground Installation of Thermoplastic Pipe for Sewers and Other Gravity-Flow Applications

ASTM D2466 (2006) Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 40

ASTM D2467 (2013) Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 80

ASTM D2657 (2007) Heat Fusion Joining Polyolefin Pipe and Fittings

ASTM D2683 (2010) Standard Specification for Socket-Type Polyethylene Fittings for Outside Diameter-Controlled Polyethylene Pipe and Tubing

ASTM D2837 (2011) Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure Design Basis for Thermoplastic Pipe Products

ASTM D3034 (2008) Standard Specification for Type PSM Poly(Vinyl Chloride) (PVC) Sewer Pipe and Fittings

ASTM D3035 (2012; E 2012) Polyethylene (PE) Plastic Pipe (DR-PR) Based on Controlled Outside Diameter

ASTM D3139 (1998; R 2011) Joints for Plastic Pressure Pipes Using Flexible Elastomeric Seals

ASTM D3212 (2007; R 2013) Standard Specification for Joints for Drain and Sewer Plastic Pipes

Using Flexible Elastomeric Seals

ASTM D3261 (2012) Standard Specification for Butt Heat Fusion Polyethylene (PE) Plastic Fittings for Polyethylene (PE) Plastic Pipe and Tubing

ASTM D3350 (2012) Polyethylene Plastics Pipe and Fittings Materials

ASTM D4101 (2011) Standard Specification for Polypropylene Injection and Extrusion Materials

ASTM D4541 (2009e1) Pull-Off Strength of Coatings Using Portable Adhesion Testers

ASTM D4585 (2013) Standard Practice for Testing Water Resistance of Coatings Using Controlled Condensation

ASTM D870 (2009) Standard Practice for Testing Water Resistance of Coatings Using Water Immersion

ASTM F1055 (2013) Electrofusion Type Polyethylene Fittings for Outside Diameter Controlled Polyethylene Pipe and Tubing

ASTM F2164 (2013) Standard Practice for Field Leak Testing of Polyethylene (PE) and Crosslinked Polyethylene (PEZX) Pressure Piping Systems Using Hydrostatic Pressure

ASTM F2206 (2011) Fabricated Fittings of Butt-Fused Polyethylene (PE) Plastic Pipe, Fittings, Sheet Stock, Plate Stock, or Block Stock

ASTM F2620 (2012) Standard Practice for Heat Fusion Joining of Polyethylene Pipe and Fittings

ASTM F477 (2010) Standard Specification for Elastomeric Seals (Gaskets) for Joining Plastic Pipe

ASTM F714 (2012a) Polyethylene (PE) Plastic Pipe (SDR-PR) Based on Outside Diameter

ASTM F949 (2010) Poly(Vinyl Chloride) (PVC) Corrugated Sewer Pipe with a Smooth Interior and Fittings

PLASTICS PIPE INSTITUTE (PPI)

PPI TR-4 (2013) HDB/HDS/SDB/PDB/MRS

Listed Materials

THE SOCIETY FOR PROTECTIVE COATINGS (SSPC)

SSPC PA 2 (2012) Measurement of Dry Coating Thickness With Magnetic Gages

WASHINGTON STATE ADMINISTRATIVE CODE (WAC)

WAC 246-272C (2009) On-Site Sewage System Tanks

WASHINGTON STATE DEPARTMENT OF ECOLOGY (WSDOE)

WSDOE Publication 98-37WQ (2008) Criteria for Sewage Works Design

1.2 SYSTEM DESCRIPTION

The work includes installing sewer force main pipe and appurtenances, valve and flowmeter manholes at the Juvenile Fish Facility (JFF), fiberglass underground septic and dosing tanks and appurtenances, dosing pumps and controls, sewage adsorption trenches and other components of the drainfield system, and other miscellaneous work.

1.2.1 Sanitary Sewer Gravity Pipeline

Provide polyvinyl chloride (PVC) plastic pipe.

1.2.2 Sanitary Sewer Pressure Lines

Provide pressure lines of ductile iron pressure pipe, high density polyethylene (HDPE) pipe, and PVC plastic pressure pipe.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals having an "I" designation are for information only. Designation following the "G" or "I" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with SECTION 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Fiberglass Reinforced Plastic (FRP) Tanks; G, AE

Include information on materials of construction for the tank and all piping and accessories, location of piping, bafflewalls, and access openings, access risers, access lids and insulation plugs and anchoring and documentation demonstrating the tank design meets specified design criteria.

Dosing Pump System; G, AE

Include layout of dosing pump system in the dosing tank, wiring and control diagrams and the proposed control sequence and alarm notification for the system.

Precast Concrete Manholes; G, AE

SD-03 Product Data

Pipeline Materials; G, AE

Submit manufacturer's standard drawings and catalog cuts for ductile iron piping (push-on, flanged, and restrained), HDPE and PVC piping.

Valves and Appurtenances; G, AE

Submit manufacturer's standard drawings and catalog cuts for plug valves, ball valves, valve boxes, and mechanical couplings.

Effluent Filters; G, AE Dosing Pump System; G, AE

Include materials of construction for dosing pumps, pump vault, discharge assembly and associated piping and appurtenances and dosing pump performance curves.

Drainfield Components; G, AE Coatings for Ductile Iron Pipe; G, AE Manual Sludge Sampler and Accessories; G, GT Location Markers; I, GT

SD-06 Test Reports

Hydrostatic/Leakage Tests; G, GT Squirt Test; G, GT

Completed test worksheets for the installed sewer mains.

SD-07 Certificates

Installers License; I, AE

SD-08 Manufacturer's Instructions

Submit manufacturer's written recommendations and instructions for installation, operation, and handling.

Fiberglass Underground Tanks; G, AE Dosing Pump System; G, AE

SD-11 Closeout Submittals

Drawings; G, GT

1.4 QUALITY ASSURANCE

1.4.1 Installer Qualifications

Install specified materials by a licensed underground utility Contractor licensed for such work in the state where the work is to be performed.

Installing Contractor's License shall be current and be state certified or state registered.The on-site sewage system (OSS) installer shall be a contractor registered with the State of Washington to perform the work and shall have obtained an installer's license from the Garfield County Health District to install OSS systems or components in Garfield County. Submit a copy of the signed Installers License obtained from Garfield County.

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1.4.2 Drawings

Submit As-Built Drawings for the complete sanitary sewer system showing complete detail with all dimensions, both above and below grade, including invert elevation.

1.5 DELIVERY, STORAGE, AND HANDLING

1.5.1 Delivery and Storage

1.5.1.1 Piping

Inspect materials delivered to site for damage; store with minimum of handling. Store materials on site in enclosures or under protective coverings. Store plastic piping and jointing materials and rubber gaskets under cover out of direct sunlight. Do not store materials directly on the ground. Keep inside of pipes and fittings free of dirt and debris.

1.5.2 Handling

Handle pipe, fittings, and other accessories in such manner as to ensure delivery to the trench in sound undamaged condition. Take special care not to damage linings of pipe and fittings; if lining is damaged, make satisfactory repairs. Carry, do not drag, pipe to trench.

PART 2 PRODUCTS

2.1 PIPELINE MATERIALS

Pipe shall conform to the respective specifications and other requirements specified below. Submit manufacturer's standard drawings or catalog cuts.

2.1.1 Ductile Iron Pressure Piping

2.1.1.1 Ductile Iron Pressure Pipe

Ductile-iron pipe shall conform to AWWA C151/A21.51, Pressure Class 350.

Flanged pipe shall conform to AWWA C115/A21.15 Class 53, or equal. Pipe shall have cement-mortar lining conforming to AWWA C104/A21.4, standard thickness. All exposed pipe shall have an exterior coating applied according to these specifications.

2.1.1.2 Ductile Iron Fittings

a. Unless otherwise specified, fittings such as tees, elbows, reducers, offsets, MJ by flange adapters, flanged by boltless restrained adapters, wyes, and end caps, shall be short-bodied compact ductile iron fittings conforming to AWWA C153/A21.53, Class 350.

b. End configuration of the various fittings shall be as shown on the Plans. Transition gaskets shall be required where dictated by end configurations.

c. All fittings (except caps, plugs and sleeves) shall be cement-mortar lined and seal coated in accordance with AWWA C104/A21.4. Buried fittings shall have an exterior asphaltic coating approximately 1 mil thick per AWWA C110/A21.10 and AWWA C153/A21.53. Exposed ductile iron pipe shall have an exterior coating applied in accordance with paragraph 2.8 of these specifications.

d. Mechanical Joint Fittings shall be short-bodied compact ductile iron fittings shall conform to AWWA C111/A21.11. Furnish with ductile iron or Cor-Ten "T" head bolts and hexagonal nuts as recommended in the Appendix to AWWA C115/A21.15.

e. Flanged fittings shall conform to AWWA C110/A21.10. Body thickness shall meet manufacturer's standard but not less than specified in AWWA C153/A21.53. Flanges shall comply with ASME B16.1, 125-pound bolt hole template. Bolts and nuts shall be as recommended in the Appendix to AWWA C115/A21.15.

f. Gaskets shall be either ring or full faced, 1/8-inch thick conforming to AWWA C111/A21.11, Appendix B..

g. Mechanical and flanged joint fittings shall be manufactured by Tyler/Union, U.S. Pipe and Foundry Company, Clow; Pacific States Cast Iron Pipe Co.; or equal.

h. Insulating Joints: Designed to effectively prevent metal-to-metal contact at the joint between adjacent sections of piping. Joint shall be of the flanged type with insulating gasket, insulating bolt sleeves, and insulating washers. Gasket shall be of the dielectric type, full face, and in other respects as recommended in the Appendix to AWWA C115/A21.15. Bolts and nuts shall be as recommended in the Appendix to AWWA C115/A21.15.

i. Fittings shall conform to AWWA C110/A21.10 or AWWA C153/A21.53.

Fittings with push-on joint ends shall conform to the same requirements as fittings with mechanical-joint ends, except that the bell design shall be modified, as approved, for push-on joint. Fittings shall have pressure rating at least equivalent to that of the pipe. Ends of pipe and fittings shall be suitable for the joints specified hereinafter.

2.1.1.3 Ductile Iron Pressure Joints and Jointing Materials

a. Joints, general: Joints for pipe and fittings shall be push-on joints except as otherwise specified in this paragraph. Joints shall be flanged joints where indicated. Joints made with sleeve-type mechanical coupling may be used in lieu of push-on joint.

b. Push-on joints: Shape of pipe ends and fitting ends, gaskets, and lubricant for joint assembly shall conform to AWWA C111/A21.11.

c. Flanged joints: Bolts, nuts, and gaskets for flanged connections shall be as recommended in the Appendix to AWWA C115/A21.15. Flanges may be cast integrally with the pipe conforming to ASME B16.1, 125-pound bolt hole template. Gaskets shall be synthetic rubber compound in which the elastomer is not less than 50 percent by volume neoprene. Gaskets shall comply with AWWA C111. When flanged pipe is required, Contractor shall provide ductile iron pipe class required by the flange manufacturer to ensure the pipe and flange units are compatible.

d. Installing joints: Designed to effectively prevent metal-to-metal contact at the joint between adjacent sections of piping. Joint shall be of the flanged type with insulating gasket, insulating bolt sleeves, and insulating washers. Gasket shall be of the dielectric type, full face, and in other respects as recommended in the Appendix to AWWA C115/A21.15. Bolts and nuts, as recommended in the Appendix to

AWWA C115/A21.15.

e. Joints made with sleeve-type mechanical couplings: Couplings shall be designed to couple plain-end piping by compression of a ring gasket at each end of the adjoining pipe sections. The coupling shall consist of one middle ring flared or beveled at each end to provide a gasket seat, two follower rings, two resilient tapered rubber gaskets, and bolts and nuts to draw the follower rings toward each other to compress the gaskets. The middle ring and the follower rings shall be true circular sections free from irregularities, flat spots, and surface defects; the design shall provide for confinement and compression of the gaskets.

Middle ring shall be of cast-iron or ductile iron, and the follower rings shall be of malleable iron or ductile iron. Cast iron shall conform to ASTM A48/A48M and shall be not less than Class 25.

Malleable iron shall conform to ASTM A47/A47M. Ductile iron shall conform to ASTM A536. Gaskets shall be designed for long life and resistance to set after installation and shall meet the applicable requirements specified for gaskets for mechanical joint in AWWA C111/A21.11. Bolts shall be track-head type; bolts and nuts shall be either of the following: bolts conforming to the tensile requirements of ASTM A307, Grade A, with nuts conforming to the tensile requirements of ASTM A563, Grade A; or round-head square-neck type bolts conforming to ASME B18.5.2.1M and ASME B18.5.2.2M with hex nuts conforming to ASME B18.2.2. Bolts shall be 5/8 inch in diameter. Bolt holes in follower rings shall be of a shape to hold fast the necks of the bolts used. Sleeve-type mechanical couplings shall not be used as an optional method of jointing except where pipeline is adequately anchored to resist tension pull across the joint.

f. Restrained flange adapters: Flanged adapters shall be made of ductile iron conforming to ASTM A536 and have flange bolt circles that are compatible with AWWA C115/A21.15. Restraint for flange adapter shall consist of a number of individually actuated gripping wedges to maximize restraint capability. Torque limiting actuating screws shall be used to ensure proper initial set of the gripping wedges. Flange adapters shall be capable of deflection during assembly or permit lengths of pipe to be field cut to allow a minimum of 0.6-inch gap between the end of the pipe and the mating flange without affecting the integrity of the seal. Restrained flange adapter shall be Series 2100 MegaFlange adapter as produced by EBAA Iron, Inc., or equal.

2.1.2 High Density Polyethylene (HDPE) Piping

2.1.2.1 High Density Polyethylene (HDPE) Pipe

a. HDPE pipe shall be made from polyethylene resin compound with cell classification of 445574C/E, or equal for PE 4710 resin in accordance with ASTM D3350 and PPI TR-4. This material shall have a Hydrostatic Strength of 1600 psi when tested and analyzed by ASTM D2837, and shall be a Plastic Pipe Institute (PPI) listed compound. The raw material for the pipe shall contain a minimum of 2 percent, well dispersed, carbon black.

b. Pipe shall be minimum DR 13.5, Class 160, IPS size manufactured in accordance with AWWA C901 and to the requirements of ASTM D3035. HDPE pipe shall be DriscoPlex 4100, JMM Eagle HDPE Pressure Pipe, or equal.

c. Pipe shall be provided with a continuous mark made of durable printing containing the following minimum markings: name and/or trademark of pipe manufacturer, nominal pipe size, material code, dimension ratio, pressure class, manufacturing standard reference, e.g. ASTM F714, and production date (day, month, year).

2.1.2.2 HDPE Fittings

a. HDPE fittings can be supplied by different manufacturers as long as they meet resin type, grade and ASTM D3350 cell classification as the specified pipe itself and satisfy the other requirements of this section. All fittings shall be compatible for butt fusion with the specified mating pipe and other fittings. Fittings shall be fully pressure rated by the manufacturer to provide an internal pressure rating at least equal to the mating pipe.

b. Butt fusion fittings shall be made of either PE4710 with a minimum Cell Classification as the pipe. Butt fusion fittings shall meet the requirements of ASTM D3261. Molded and fabricated fittings shall have a pressure rating equal to the pipe unless otherwise specified in the plans. Markings for molded fittings shall comply with the requirements of ASTM D3261. Fabricated fittings shall be marked in accordance with ASTM F2206. Socket fittings shall meet ASTM D2683.

c. Electrofusion Fittings - Fittings shall be PE4710 with a minimum Cell Classification as the pipe. Electrofusion Fittings shall have a manufacturing standard of ASTM F1055. Fittings shall have a pressure rating equal to the pipe unless otherwise specified on the plans.

d. Flanges and mechanical joint adapters (MJ adapters) shall be PE4710 with a minimum Cell Classification as the pipe. Flanged and MJ adapters can be made to ASTM D3261 or if machined, must meet the requirements of ASTM F2206. Flanges and MJ adapters shall have a pressure rating equal to the pipe unless otherwise specified on the plans. Markings for molded or machined flange adapters or MJ Adapters shall be per ASTM D3261. Fabricated (including machined) flange adapters shall be per ASTM F2206. Van-Stone style, metallic (including stainless steel), convoluted or flat-plate, back-up rings and bolt materials shall follow the guidelines of Plastic Pipe Institute Technical Note # 38, and shall have the bolt-holes and bolt-circles conforming to one of these standards: ASME B16.5 Class 150, ASME B16.1 Class 125, or AWWA C207 Class 150 Series B, D, or E. The back-up ring shall provide a long-term pressure rating equal to or greater than the pressure-class of the pipe with which the flange adapter assembly will be used, and such pressure rating shall be marked on the back-up ring.

Flange adapters shall be used to connect HDPE IPS pipe with standard ductile iron flanges. The adapter shall include stainless steel or epoxy-coated steel reinforcing ring, full-faced rubber or neoprene gasket, and T-bolts.

2.1.2.3 HDPE Joints

a. Wherever possible, the HDPE pipe should be joined by the method of thermal butt fusion, as outlined in ASTM F2620.

b. HDPE pipe and fittings may be joined together or to other materials by means of (a) flanged connections (flange adapters and back-up rings),

(b) mechanical couplings designed for joining polyethylene pipe or for joining polyethylene pipe to another material, (c) MJ Adapters or (d) electrofusion. The joining devices or means shall be capable of meeting the pressure class requirements of the mating pipe or fitting.

When joining by other means, the installation instructions of the joining device manufacturer shall be observed.

c. Flanges shall be of the same material molded or butt-fused. Butt fusion of flanges and pipe shall be in conformance with ASTM D2657.

Flanges shall be compatible with standard ductile iron flanges

(AWWA C110/A21.10).

d. A stiffener shall be installed in the bore of the polyethylene pipe when an OD compression mechanical coupling is used and when connecting plain end HDPE pipe to a mechanical joint pipe, fitting, or appurtenance. External clam and tie rod restraint shall be installed where HDPE pipe is connected to the socket of a mechanical joint pipe, fitting, or appurtenance except where an MJ Adapter is used.

2.1.3 PVC Plastic Gravity Sewer Piping

2.1.3.1 PVC Plastic Gravity Pipe and Fittings

ASTM D3034, SDR 35, or ASTM F949 with ends suitable for elastomeric gasket joints.

2.1.3.2 PVC Plastic Gravity Joints and Jointing Material

Joints shall conform to ASTM D3212. Gaskets shall conform to ASTM F477.

2.1.4 PVC Plastic Pressure Pipe and Associated Fittings

2.1.4.1 PVC Plastic Pressure Pipe and Fittings

a. Pipe and Fittings Less Than 4 inch Diameter: Pipe, couplings and fittings shall be manufactured of materials conforming to ASTM D1784, Class 12454B.

1. Push-On Joint: ASTM D3139, with ASTM F477 gaskets. Fittings for push-on joints shall be iron conforming to AWWA C110/A21.10 or AWWA C111/A21.11. Iron fittings and specials shall shall be cement-mortar lined (standard thickness) in accordance with

AWWA C104/A21.4.

2. Solvent Cement Joint: Pipe shall conform to dimensional requirements of ASTM D1785 or ASTM D2241 with joints meeting the requirements of 150 psi working pressure and 200 psi hydrostatic test pressure. Fittings for solvent cement jointing shall conform to ASTM D2466 or ASTM D2467.

2.1.5 Stainless Steel Pipe and Fittings

Refer to Section 33 32 13.14 55 PACKAGED SEWER LIFT STATIONS, GRINDER PUMP

TYPE.

2.2 VALVES AND APPURTENANCES

Valve ends shall be of the type required to match the pipe to which they will be connected, or as shown on the Drawings.

2.2.1 Eccentric Plug Valves

Eccentric plug valves shall be straight-flow nonlubricated resilient plug type suitable for driptight, bi-directional shutoff at the specified valve design pressure. Port areas for the valve shall be at least 80 percent of the adjacent full pipe area. Valves shall be designed and manufactured to shut off bubble tight at 175 psi. Plug shall be round. Flanged valves shall be manufactured in accordance with ASME B16.1, Class 125, including flange thickness as required by AWWA C504. Threaded valves shall have threaded NPT full zie inlets. The connection shall be hexaganal for a wrench connection. Valve bodies shall be ASTM A126, Class B cast iron conforming to the requirements of AWWA C504. Valves shall be furnished with a welded-in overlay seat of not less than 90 percent nickel alloy content in accordance with AWWA C507. Sprayed, plated, nickel welded rings or seats screwed into the body are not acceptable. Valve plug shall be cast iron ASTM A126 Class B. Plug shall be one-piece solid construction with PTFE Thrust bearings on the upper and lower bearing journals to reduce torque and prevent dirt and grit from entering the bearing and seal area.

Valves that do not isolate the bearing area from debris are not acceptable. Valves shall be furnished with replaceable sleeve type bearings conforming to AWWA C504. Valve plug seating surface to mate with the body seat shall be Buna-N. Bearings shall be of sintered, oil impregnated type 316 stainless steel. The interium and exterior of the valve shall be coated with fusion bonded epoxy, or equal. All valves shall be provided with worm gear type manual actuators suitable for buried service. Buried service gears shall be designed and certified to withstand input loads up to 300 ft-lbs. minimum without damage. Operator shall have an adjustable open and closed travel stops. Valves shall have a 2-inch AWWA operator nut for buried services and a hand wheel or levor operator for above ground or exposed services, or as called for on the Drawings.

All plug valves shall be capable of passing "pigging" cleaning equipment in either direction and manufacturer shall so certify that this may be done without the use of special equipment. Valves shall be provided with seat downstream away from flow. Valves shall be Cam-Centric Plug Valves by Val-Matic Valve and Manufacturing Corporation; Ballcentric Plug Valve by Henry Pratt Company, or equal.

2.2.2 Gate Valves

Gate valves shall be iron body, bronze-mounted, non-rising stem, resilient seat, and furnished with O-ring type packing, and have a 2-inch AWWA operating nut. Valves shall conform to AWWA C509 and be rated for 200 psi working pressure and 400 psi hydrostatic test pressure, as minimum requirements. Interior and exterior of body and bonnet, and the O-ring plate shall be fusion-bonded epoxy-coated in accordance with AWWA C550. For buried piping, gate valve shall have a 2-inch AWWA operating nut. For aboveground piping, gate valve shall have a handwheel. Gate valves shall be Kennedy M&H Model KS-FW, Clow 2639/2640, or equal.

2.2.3 Valve Boxes

Cast iron valve boxes shall be furnished and installed with all below ground valves. Valve box lid shall be cast iron, have a heavy coat of bituminous paint, and be lettered "SEWER". Boxes shall be 3 piece assemblies, slip type consisting of a top section, cover and extension.

Length of extension will vary depending on location. Diameter of the valve box shall be not less than 5 inches, and shall be of such length so as to provide the depth of cover over the pipe without full extension. Shaft shall be 5-7/8 inch diameter. Operator extensions shall be cast iron and conform to the sizes shown on the Plans. Valve box extension shall be 6 inches outside diameter steel pipe and 12 gauge or heavier wall thickness or equal. Valve boxes shall be Olympic Foundry 910, Inland Foundry 910 or equal.

2.3 PRECAST CONCRETE MANHOLES

2.3.1 Precast Concrete Risers, Base Sections and Tops

Precast concrete manhole risers, base sections and tops shall conform to ASTM C478 and be manufactured in accordance with Section 03 40 00.00 55 PLANT-PRECAST CONCRETE PRODUCTS FOR BELOW GRADE CONSTRUCTION; base and first riser shall be monolithic. Manhole risers and base sections shall be circular sections in standard 48-inch diameter, unless otherwise noted, and shall be fabricated as keylock type suitable for placement of gasket material. No more than two lift holes shall be cast into each section.

Holes shall be located as to not damage reinforcing or expose it to corrosion. All lift holes shall be patched to prevent water seepage into the manhole, utilizing suitable non-shrink grout. Slabs, cones and ring sections shall be free from fractures, cracks, rock pockets or exposed reinforcement. Precast manhole cones shall be eccentric unless otherwise specified.

2.3.2 Gaskets and Connectors

Gaskets for joints between manhole sections shall be 0-ring rubber gasket conforming to ASTM C443.

2.3.3 Metal Items

2.3.3.1 Frames, Covers and Gratings for Manholes

CID A-A-60005, cast iron; figure numbers shall be as follows:

a. Traffic manhole: Provide in paved areas.

Frame: Figure 1, Size 22A Cover: Figure 8, Size 22A Steps: Figure 19

b. Frames and covers shall be cast iron or ductile iron. Cast iron frames and covers shall be as indicated or shall be of a type suitable for the application, circular, without vent holes. Castings shall be smooth, sound, clean and free from blisters and defects. Castings and covers shall be planed and ground when necessary to ensure flat and true surfaces. Covers shall be true and set within the ring at all points.

The frames and covers shall have a combined weight of not less than 400 pounds. The word "Sewer" shall be stamped or cast into covers and be plainly visible.

2.3.3.2 Manhole Steps

Plastic coated pressure-molded to the steel. Plastic coating shall conform to ASTM D4101, copolymer polypropylene. Aluminum steps or rungs will not be permitted.

2.4 FIBERGLASS REINFORCED PLASTIC (FRP) TANKS

2.4.1 Loading Conditions - tanks designed and constructed for underground installation shall meet the following design criteria.

2.4.1.1 Internal Load

Testable tanks shall be capable to withstand a 5-psig air-pressure test with 5:1 safety factor. Maximum test pressure is 5 psig.

2.4.1.2 Surface Loads

Tanks shall withstand surface H-20 and HS-20 axle loads when properly installed according to manufacturers current Installation Manual and Operating Guidelines.

2.4.1.3 External Hydrostatic Pressure and Burial Depth

Tanks shall be capable of being buried in ground with 7 feet of overburden over the top of the tank, the hole fully flooded, and maintain a safety factor of 5:1 against general buckling.

2.4.1.4 Accessory Equipment

Tank shall support accessory equipment - such as access openings, attached risers, collar/ risers, inlet/outlet piping, baffle wall and filter/siphon installations when installed according to tank manufacturers current Installation Manual and Operating Guidelines.

2.4.1.5 Structural Integrity

Buried tanks shall be manufactured with integral trapezoidal ribs for structural integrity. The tanks shall be a monolithic structure with no joints in the tank walls.

2.4.2 Tank Materials, Capability, and Function

Tank shall be capable of handling liquids with specific gravity up to 1.1.

Tank shall be vented to atmospheric pressure. Tank shall be capable of handling domestic wastewater, grease and oils at temperatures not to exceed 150 degrees F. Tank shall be manufactured with 100 percent premium resin (terephthalic polyester or highly cross-linked isophthalic polyester resins only), and chopped glass. No fillers or extenders will be used. No general, orthophthalic, or odd lot resin will be used. All associated internal mounting hardware shall be rustproof. Tank shall have a nominal working capacity and nominal outside diameter as shown on the Drawings.

Tank shall be a single wall, fiberglass reinforced plastic (FRP) tank manufactured by Xerxes Corporation or equal.

2.4.3 Accessories

2.4.3.1 Access Opening

All tanks shall have access openings as shown on the Drawings and comply with WAC 246-272C, On-site Sewage System Tanks. All access openings shall be a minimum of 24-inches complete with riser, lid and necessary hardware.

2.4.3.2 Piping and Fittings

All tanks shall be equipped with factory-installed, inlet and outlet piping. All flanged nozzles shall be flat-faced, flanged, and conform to ASME B16.5 150 lb. bolting pattern. All PVC piping shall be minimum Schedule 40 per this section.

2.4.3.3 Lifting Lugs

All tanks shall have lifting lug(s) that are capable of withstanding weight of tank with a safety factor of at least 2:1.

2.4.3.4 Baffle Walls

The septic tank shall have full FRP baffle walls installed as shown on the Drawings to provide an area to collect solids and for general distribution of the effluent flow.

2.4.3.5 Attached Access Risers

Attached access risers shall be PVC or FRP and used with 24- or 30-inch diameter access opening as shown on the Drawings. The access risers shall be supplied by tank manufacturer. Attached access risers shall be attached to access opening using tank adapters and adhesive or FRP bonding kits recommended or provided by the tank manufacturer. Risers shall be supplied by Xerxes Corporation, Orenco Ultra-Rib, Orenco Kor-Flo, or equal.

2.4.3.6 Access Lids and Insulation Plugs

a. Provide a locking reinforced fiberglass lid to secure covering for each access riser to the tank. Access lids shall be molded using fiberglass reinforced polyester resin encapsulating a wood or structural foam core, for added durability and longevity. The finish shall be green with the top surface is textured to provide a nonskid surface.

Gasketed lids include a polyurethane or neoprene gasket. Lid comes with either two or four 5/16-inch stainless steel flathead socket cap screws and a hex key wrench. All lids shall have a minimum of 4 inches of water resistant insulation (Styrofoam or equal). The lids shall be capable of supporting a 2,500 pound wheel load. Each tank shall have at least one lid which is vented to the atmosphere. The vents shall be sufficiently sized to handle the projected influent and effluent flows to and from the tanks. The vents shall include carbon filters to reduce the odor of sewage gases in the air. The filter housing shall be constructed of non-corrosive parts that are removable to allow replacement of the carbon filters. The Contractor shall provide three carbon filter packs for each tank. Orenco Fiberglass Access Lids or equal.

b. Provide insulation plug, as shown on the Drawings, to protect tank equipment and piping located in the riser from freezing. The plug shall be sized to fit inside 24-inch and 30-inch ribbed PVC risers, have an R-value of 30, and contained within a watertight shell for longevity. The plug shall sit loosely in the riser, usually resting on the splice box. A polyethylene strap shall be provided to enable the plug to be removed easily. Orenco Insulation Plug or equal.

2.4.3.7 Anchoring

Straps shall be FRP anchor straps as supplied by tank manufacturer. Number and location of straps shall be shown on submittal drawings. Provide prefabricated concrete deadman, which are designed to ACI 318, from the tank manufacturer.

2.5 EFFLUENT FILTERS

Provide effluent filter on the outlets of the septic tank and dosing tank.

The filter shall protect the drainfield discharge orifices from plugging by providing a screen with a mesh size of 1/8 inch smaller than the drainfield orifices, protect the effluent pump from damage due to particles which exceed the pump's capacity to pass, provide an open area flow capacity sufficient to ensure a minimum service level of 6 months, be constructed of durable, non-corroding materials, draw liquid from the "clear zone" of the tank (zone between 40 percent down from the top of the liqued and 40 percent up from the bottom of the tank), be designed, constructed and installed for easy and thorough cleaning and be capable of both continuous and intermittent operation. The filter cartridge shall be easily removable from its position in the tank for cleaning without the use of tools other than removing the riser access lid. The filter cartridge shall be constructed of polypropylene, polyethylene, combination thereof or equal.

The handle components, support coupling, and bracket shall be constructed of PVC. The effluent filter for the septic tank shall be Orenco Biotube Effluent Filter, Polylok PL-525, or equal. The effluent filter for the dosing tank shall be Orenco Biotube Effluent Filter or equal that is sized for use in a combined effluent filter and pump vault; Orenco Universal Biotube Pump Vault with Duplex Pumps or equal.

2.6 DOSING PUMP SYSTEM

Provide duplex submersible dosing pump system for installation in the dosing tank as shown on the Drawings. The system shall include dosing pumps, dosing pump control system, pump vault, effluent filter, discharge assembly, and other piping and accessories for a fully functioning unit.

2.6.1 Dosing Pumps

2.6.1.1 Performance Characteristics

Furnish and install two submersible wastewater pump(s) with the flowing performance characteristics:

Capacity and Head 46.4 gpm @ 51.6 feet TDH

Speed 3450 rpm nominal

Motor Horsepower 0.75 Hp

Efficiency 33.5 percent

Service Factor 1.15

Electric Power Characteristics 3-phase, 480V, 60 Hz

2.6.1.2 Pump Design

Pumps shall be UL and CSA listed for use with effluent sewage. The pumps must have a minimum 24-hour run dry capability without water lubrication.

The pumps shall have a 1/8-inch bypass orifice to ensure flow circulation for motor cooling and to prevent air bind. The pump shall have a floating impeller design to protect against up thrust and increase pump life. The pumps liquid ends must be repairable (by replacing impellers and/or diffusers) for better long-term cost of ownership. The motor must be rated for continuous use and frequent cycling, at least 100 cycles per day. The motor cable must be suitable for Class 1, Division 1 and 2 applications.

The pumps shall be lightweight for easy removal and maintenance. The pump shall have internal thermal overload protection and internal lightning protection. All pumps shall undergo 3-point (Dead Head, Design Flow, and Design Flow + 30 percent) wet testing at the factory to confirm performance. Pump shall come with sufficient length of extra heavy duty (SOOW)600-V cable (suitable for Class I, Division I and Division 2 applications) for the proposed installation. Pumps shall be Orenco PF Series High-Head Effluent Pumps 5007 or equal.

2.6.2 Dosing Pump Control System

2.6.2.1 Enclosure

Furnish and install all equipment in a UL listed weatherproof NEMA type 4X enclosure, with dead front interior and hinged gasketed exterior doors in accordance with Section 40 95 13.00 55 CONTROL PANELS, DEVICES AND HARDWARE. The enclosure shall contain the pump control panel, enclosure strip heater with heat shield and thermostat and other accessories as shown on the Drawings or specified.

The electrical components to be installed inside the electrical service and pump control panel enclosure shall conform to the requirements of Section

26 05 00.00 55 GENERAL ELECTRICAL WORK.

2.6.2.2 Liquid Level Float Switches

Provide liquid level ball float switches designed for immersion in a wastewater stream to activate high or low level alarms and a signal to shut down the dosing pump at low-low level conditions. Each ball float shall be a sealed mercury switch that is sealed with a polypropylene casing. Each switch shall have an integral PVC type STO cable with the length as required for connection to the terminal box. The float switch shall be provided with either a normally open (NO) or normally closed (NC) contact as required to operate the control equipment as specified. The hardware fittings shall be constructed of 316 stainless steel or equal. The liquid level float switches shall be Anchor Scientific Roto Float Type W or equal. The mounting hardware shall be compatible with the liquid level float switches and be constructed of 316 stainless steel. The hardware shall include stainless steel WRW bracket, vinyl coated stainless steel wire rope and rope clips, stainless steel float cable brackets and vinyl coated cast iron anchor.

2.6.2.3 Pressure/Level Transmitter

Provide a pressure/level transmitter designed for immersion in a wastewater stream to measure pressure of wastewater and control the dosing pumps.

Pressure transmitter shall have a two wire 4-20 ma output, intrinsically safe Class I, Division I classification when used with appropriate barrier. Transmitter shall be a birdcage type design with heavy duty 316 stainless steel diaphragm seal with protective standoff plate that protects the flush diaphragm from the elements, vented polyurethane cable, integral lightning arrestor and hydrophobic filter vent tube seal. Blue Ribbon

Corporation Submersible/Level Transmitter BC001 - Birdcage series or equal.

2.6.2.4 Programmable Logic Controllers

Provide a PLC to monitor, control and provide alarms related to the lift station operation. PLC shall be in conformance with the requirements of Section 40 94 43.01 55 PROCESS CONTROLLERS - PROGRAMMABLE LOGIC CONTROLLERS

(PLC).

2.6.2.5 Motor Controls, General

Provide each motor with suitable motor controls and devices that will perform the functions as specified for the respective motors and in conformance with Section 26 24 19.00 55 MOTOR CONTROL CENTERS. Horsepower ratings are as shown on the plans. This information is for guidance only and does not limit the equipment size. When motors furnished differ from the expected ratings indicated, make the necessary adjustments to wiring, conduit, disconnect devices, motor starters, branch circuit protection and other affected material or equipment to accommodate the motors actually installed at no additional cost to the Government.

2.6.2.6 Motor Controls Elements

Each motor control system shall be equipped with a HAND-OFF-AUTO control switch, indicating lights, elapsed time meter, motor starter, control transformer with primary fuses and secondary control power fuse.

a. Control switches and indicating lights shall be UL listed oil-tight devices rated heavy duty. Provide Allen Bradley, Eaton/Cutler Hammer or equal.

b. Elapsed time meters shall be non-resettable with 0.0 to 99,999.9 readout. Provide Remington, Yokogawa or equal.

c. Each motor starter shall be NEMA rated with an electrically held contactor and a single reset, 3 phase, overload relay with a normally closed holding contact and a normally open isolated contact for overload alarm. Each overload shall be ambient compensated and shall trip on 600 percent of full load current in less than 6 seconds. Each motor starter Size 3 and larger shall be furnished with a minimum of four auxiliary contacts and provisions for adding two more. Each overload relay shall have a test trip push button built-in and an adjustable calibrated trip with indicating dial. Overload relay manual reset shall be dead front door mounted, unbreakable steel operator, with insulated plastic foot for safety.

d. Control power transformers shall be sized as shown on the plans, minimum size shall be 100VA where not designated. Provide Micron, G.E., Hevi-Duty or equal.

2.6.2.7 Nameplates

Nameplates shall be conform to the requirements of Section 26 05 00.00 55

GENERAL ELECTRICAL WORK.

2.6.2.8 Indicating Lights

Furnish and install push-to-test lights to indicate status and alarm conditions locally as shown on the plans. Indicating lights shall be UL listed, oil-tight devices rated heavy duty. Provide Allen Bradley, Eaton/Cutler Hammer or equal. Engraved roundel phenolic nameplates shall indicate specific function.

2.6.2.9 Push-Buttons and Selector Switches

Push-buttons and selector switches shall be UL listed, oil-tight devices rated heavy duty. Provide Allen Bradley, Eaton/Cutler Hammer or equal.

Engraved roundel phenolic nameplates shall indicate specific function.

2.6.2.10 Relays, Control

Control relays shall be Potter and Brumfield, IDEC or equal. Two form-C contacts rated at 10 amp minimum shall be provided on each relay. Provide relay with energized neon lamp inside relay case.

2.6.2.11 Relays, Power Fail

The power fail relay (PFR) shall continuously monitor the three phases for power loss, low voltage, phase loss and phase reversal and have automatic reset. The power fail monitor shall have a drop-out voltage adjustment and a control and automatic contacts failure indicating LED. Power fail relay shall include auxiliary relay contacts for control and alarming.

2.6.2.12 Relays, Probe

Probe relays shall be provided for functions as specified and shown on the Drawings, i.e., moisture probes, motor over-temperature, etc. The pump manufacturer shall provide the moisture sensor and motor over temperature sensors. The relay shall be specifically designed for moisture and temperature moisture devices. The unit shall utilize low current (120 micro amps maximum) and low voltage (12 volts d-c maximum). Unit sensitivity shall allow pick-up on circuit closures of 100 K ohms or less.

2.6.2.13 Relays, Time Delay

Time delay relays shall be solid state relays with a timer adjustable over the range 1 to 60 seconds unless other ranges are indicated or required.

Provide LED relay energized indicator lamp.

2.6.2.14 Terminal and Distribution Blocks

a. Terminal blocks shall be furnished and installed in the control panel.

Terminal blocks shall be rated at 600V minimum, din rail mounted, nickel plated corrosion resistant.