36C78618R0094-020.docx

01-01-17

SECTION 32 84 00

PLANTING IRRIGATION

SPEC WRITER NOTES:

1. Use this section only for NCA projects. Delete text between // ______ // not applicable to project. Edit remaining text to suit project.

2. Modify paragraph 1.1 according to project requirements, indicate whether irrigation system is part of an existing system being modified, or whether system is new.

4. Remove references to automatic operation, when system being installed is manually operated.

GENERAL

SUMMARY

Section Includes:

// Manually controlled // Standalone programmable // Programmable fully automatic // irrigation system with full and complete 100 percent coverage within areas indicated on drawings.

SPEC WRITER NOTE: Add or delete items required to cover work for specific project.

Sleeving irrigation pipes and wires as indicated, and beneath hardscape surfaces.

SPEC WRITER NOTE:

Modify following statement that proposed irrigation equipment is to match or be compatible with the existing irrigation equipment and control system.

// Manufacturer of primary irrigation equipment including but not limited to sprinklers, controllers, control valves, // weather station // // and decoders // shall be compatible with the existing components on the cemetery //.

RELATED REQUIREMENTS

SPEC WRITER NOTE: Update and retain references only when specified elsewhere in this section.

Maintenance of Existing Utilities: Section 01 00 00, GENERAL REQUIREMENTS.

AsBuilt Drawings: Section 01 00 00, GENERAL REQUIREMENTS.

Availability and Use of Utility Services: Section 01 00 00, GENERAL REQUIREMENTS.

Submittals: Section 01 33 23 SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

Concrete: Section 03 30 53, CASTINPLACE CONCRETE (SHORT FORM).

Excavation, Backfill: Section 31 20 00, EARTH MOVING.

Electrical supply and connection to irrigation controller // and irrigation pumps //: Section 26 05 00, COMMON WORK RESULTS FOR ELECTRICAL.

Spigot: Section 323000, SITE FURNISHINGS.

Water Distribution Systems: Section 33 10 00, WATER UTILITIES.

Irrigation Pressure Booster System: Section 32 82 00, IRRIGATION PUMPS.

Plants, Turf, and Grasses: Section 32 90 00, PLANTING.

SPEC WRITER NOTE: Modify following paragraph based upon project conditions. Retain applicable definitions after editing.

DEFINITIONS

Lateral Piping: Piping located downstream from control valves to sprinklers, specialties, // and lateral line drain valves //. Piping is under pressure during flow.

Mainline Piping: Located downstream from point of connection to water distribution piping to, and including, control valves. Piping is under system pressure.

Low Voltage: As defined in NFPA 70 for circuits and equipment operating at less than 50 Volts or for remotecontrol, signaling powerlimited circuits.

Hardscape: Site roads, walks, walls, or any other surface improvements for which removal for excavation to perform maintenance or replacement of the irrigation system pipes, or wires will require disturbance of other than landscape materials.

RE: Contracting Officer's Representative (COR).

COR: Contracting Officer's Technical Representative.

APPLICABLE PUBLICATIONS

Comply with references to extent specified in this section.

American National Standard Institute (ANSI).

B40.105 - GaugesPressure Indicating Dial TypeElastic Element.

American Society of Sanitary Engineers (ASSE).

10132005 - Reduced Pressure Principle Backflow Preventers.

ASTM International (ASTM).

A36/A36M14 - Carbon Structural Steel.

A53/A53M12 - Pipe, Steel, Black and HotDipped, ZinCoated, Welded and Seamless.

A242/A242M04 (2009) - High Strength LowAlloy Structural Steel.

A30714 - Carbon Steel Bolts, Studs, and Threaded Rod 60,000 PSI Tensile Strength.

A53684 (2009) - Ductile Iron Castings.

B3310(2014) - TinCoated Soft or Annealed Copper Wire for Electrical Purposes.

B6108 - Steam or Valve Bronze Castings.

B6209 - Composition Bronze or Ounce Metal Castings.

B58414 - Copper Alloy Sand Casting for General Applications.

D178515 - Poly (Vinyl Chloride) (PVC) Plastic Pipe, Schedule 40, 80, and 120.

D123804c - Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer.

D178411 - Rigid Poly (Vinyl Chloride) (PVC) Compounds and Chlorinated Poly (Vinyl Chloride) (CPVC) Compounds.

D178506 - Poly (Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80, 120.

D224115 - Poly (Vinyl Chloride) (PVC) PressureRated Pipe (SDR Series).

D246415 - Threaded Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 80.

D246615 - Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 40.

D256412 - Solvent Cements for Poly (Vinyl Chloride) (PVC) Plastic Piping Systems.

D313998 (2005) - Joints for Plastic Pressure Pipes Using Flexible Elastomeric Seals.

D326115 - Butt Heat Fusion Polyethylene (PE) Plastic Fittings for Polyethylene (PE) Plastic Pipe and Tubing.

D335010 - PE Pipe & Fittings Materials.

F47714 - Elastomeric Seals (Gaskets) for Joining Plastic Pipe.

F65615 - Primers for Use in Solvent Cement Joints of Poly (Vinyl Chloride) (PVC) Plastic Pipe and Fittings.

American Water Works Association (AWWA).

C110/A21.1008 - DuctileIron and GrayIron Fittings, 3 inch Through 48 inch for Water.

C111/A21.1106 - RubberGasket Joints for DuctileIron Pressure Pipe and Fittings.

C115/A21.1505 - Flanged DuctileIron Pipe with DuctileIron or GrayIron Threaded Flanges.

C151/A21.5109 - DuctileIron Pipe, Centrifugally Cast. C153/A21.5300 - DuctileIron Compact Fittings for Water Service.

C50415 - Rubber Seated Butterfly Valves.

C50909 - ResilientSeated Gate Valves for Water Supply Service.

C60010 - Installation of Ductile Iron Water Mains and Their Appurtenances.

C90007 - Polyvinyl Chloride (PVC) Pressure Pipe and Fabricated Fitting, 100 mm and Through 300mm (4 In. Through 12 inches) for Water Transmission and Distribution.

C90108 - Polyethylene (PE) Pressure Pipe and Tubing, 13 mm (1/2 inches) through 76 mm (3 inches), for Water Service.

C90510 - Polyvinyl Chloride (PVC) Water Transmission Pipe, Nominal Diameters 14 In. Through 48 In. (350 Through 1,200 mm) for Water Transmission and Distribution.

Manufacturers Standardization Society (MSS).

SP702006 - Cast Iron gate Valves, Flanged and Thread Ends.

National Electrical Manufacturers Association (NEMA).

2502008 - Enclosures for Electrical Equipment (1000 Volts Maximum).

PREINSTALLATION MEETINGS

Conduct preinstallation meeting // at project site // minimum 30 days before beginning Work of this section.

SPEC WRITER NOTE: Edit participant list to ensure entities influencing outcome attend.

Required Participants:

COR (COR).

// Architect/Engineer. // // Inspection and Testing Agency. // Contractor.

Installer.

// Manufacturer's field representative. // Other installers responsible for adjacent and intersecting work, including // ______ //.

SPEC WRITER NOTE: Edit meeting agenda to incorporate project specific topics.

Meeting Agenda: Distribute agenda to participants minimum 3 days before meeting.

Installation schedule.

Installation sequence.

Preparatory work.

Protection before, during, and after installation.

Installation.

Terminations.

Transitions and connections to other work.

Inspecting and testing.

Other items affecting successful completion.

Document and distribute meeting minutes to participants to record decisions affecting installation.

SPEC WRITER NOTES: Verify number of copies of irrigation information submittals with NCA/CFM Project Manager.

SUBMITTALS

Submittal Procedures: Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

Submittal Drawings:

Shop Drawings: Show size, configuration, and fabrication and installation details.

Controller Chart:

Prepare map diagram showing valves, // decoders, // lateral lines, and control wires // and communication cables // route location. Identify valves size, station, number and type irrigation type. Submit approved "Asbuilt" drawings before charts are prepared.

Provide one reduced drawing of actual "asbuilt" system controller chart, showing area covered by each automatic controller, supplied at maximum size controller door allows. When controller sequence is not legible when Drawing is reduced to door size, enlarge drawing to readable size and place folded in sealed plastic container, inside controller door.

Print chart with different color used to show area of coverage for each station. Charts must be completed and approved before final inspection of the irrigation system.

Irrigation pointofconnection showing pipe and valve sizes and lay lengths within specified vaults.

Irrigation control panel showing all components of control system, location and layout within control cabinet.

Show sizes of irrigation zones in GPM based on flow rates of actual irrigation outlets submitted and approved. Size valves for actual demand in GPM not exceeding manufacturer’s recommendations for valves with pressureregulating option.

Flower Water Station Spigot Connection Assembly and Curb Stop Valve.

Any other detailing through shop drawings indicated in the Drawings.

Samples: // includes laboratory samples //.

// Product //: // size // // long // square //, each type and color //.

Submit quantity required to show full color // and texture // range.

// Product //: Full sized, complete assembly.

Approved samples may be incorporated into work.

Manufacturer's Literature and Data:

Description of each product.

Geardriven rotor sprinkler heads indicating manufacturer recommendation for each application.

// Include Center for Irrigation Technology Space Pro Single Leg Profile showing Distribution Uniformity and Scheduling Coefficient for nozzles being used at specified spacing. // // Provide computer generated distribution uniformity and scheduling coefficient calculations for nozzles used at specified spacing. // Controllers.

Valves.

Installation instructions.

Warranty.

Materials List:

Pipe and fittings.

Valves.

Mainline components.

Water filtration components.

Electrical components.

Control system components.

Test Reports: Certify // each product complies // products comply // with specifications.

Operation and Maintenance Data:

Care instructions for each exposed finish product.

Startup, maintenance, troubleshooting, emergency, and shutdown instructions for each operational product.

QUALITY ASSURANCE

Manufacturer Qualifications:

Regularly manufactures specified products.

Manufactured specified products with satisfactory service on five similar installations for minimum five years.

// Project Experience List: Provide contact names and addresses for completed projects. // Installer Qualifications: // Product manufacturer. // Manufacturer authorized installer //.

Regularly installs specified products.

Installed specified products with satisfactory service on five similar installations for minimum five years.

// Project Experience List: Provide contact names and addresses for completed projects. //.

SPEC WRITER NOTES: Provide requirements for welding certificates and welders’ qualifications if required according to system installed for specific project.

Welders and Welding Procedures Qualifications: // AWS D1.1/D1.1M. // AWS D1.2/D1.2M // AWS D1.3/D1.3M. // Products Criteria:

Multiple Units: When two or more units, same type or class of materials or equipment required, provide compatible products from one manufacturer.

Assembled Units: Manufacturers of equipment assemblies, which use components made by others, assume complete responsibility for final assembled product.

All components of assembled unit need not be products of same manufacturer but component parts which are alike are product of single manufacturer.

Components are compatible with each other and with total assembly for intended service.

Codes and Regulations:

Comply with latest edition of National Electrical Code, Uniform Plumbing Code, and applicable laws and regulations of governing authorities.

WARRANTY

SPEC WRITER NOTE: Always retain construction warranty. FAR includes Contractor's one year labor and material warranty.

Construction Warranty: FAR clause 52.24621, "Warranty of Construction."

SPEC WRITER NOTE: Specify extended manufacturer's warranties for materials only.

Manufacturer's Warranty: Warrant irrigation materials against material and manufacturing defects.

SPEC WRITER NOTE: Specify customarily available warranty period for specified products.

Warranty Period: One year.

PRODUCTS

SYSTEM DESCRIPTION

System Requirements:

Full (head to head plus 10percent) and complete coverage of irrigated areas. Adjust head locations as required to achieve full coverage of irrigated areas.

Layout work as shown on the drawings. Drawings are diagrammatic to the extent that swing joints, offsets and fittings are not shown. Diagrammatic also refers to the location of the pipelines and valves, which may have been adjusted for clarity of Drawings. Lines are to be common trenched wherever possible. Place irrigation heads shown along roadways between // ______cm (inches) // x cm (x inches) and x cm (x inches) from edge of pavement, unless otherwise specified.

Locations of remote control valves is schematic. Group remote control valves wherever possible and align at set dimension back of curb along roads // at the perimeter of burial sections //. Locate remote control valves individually or in groups of two. Where exact location for valves has not been set, or there are conflicts, coordinate location with COR before installation.

Run irrigation lines and control wire at boundaries of graves, thru designated utility lanes or beside roadways.

Run irrigation lines, control wires and power wires in trenches as indicated on Drawings or as typical for industry standards, when not indicated.

Connect new system to existing mains. // Disconnect and abandon existing irrigation system. // Connect to new mains //.

Unless noted otherwise, run irrigation lines, power wires and control wires in sleeves or conduit where installed beneath any site hardscape materials.

Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70 by a qualified testing agency, and marked for intended location and application. Run irrigation lines, cables, control wires, and high voltage conduits in separate sleeves.

SPEC WRITER NOTE:

1. Modify following paragraph to adjust coverage requirements when irrigation water quality causes staining hardscape materials due to water quality issues like high Iron.

2. Modify paragraph below as appropriate to indicate exactly what programming of central computer is required as well as programming for standalone programs and for any new satellite controllers.

3. Modify paragraph below when adding to existing irrigation system to address fully functional irrigation program, when all satellites and zone control valves are fully operational. Provide programming as required to perform temporary irrigation needed operate to establish new lawn and plants, before acceptance by the Government.

For central controls both existing and new controllers, provide or modify programming so system will operate existing and new controllers for fully operational irrigation system. In addition, require to provide any interim modifications to central controls to allow operation of existing system as well as all or portions of new, until the full system is operational.

Completely program central controller // and satellite controllers // according to approved // master irrigation schedule //.

Follow manufacturer's instructions for installation.

Submit manufacturer's written certification that Control System is complete, including related components, and fully operational to COR.

SPEC WRITER NOTE:

Update and specify only that which applies to the project.

SYSTEM PERFORMANCE

SPEC WRITER NOTE:

1. Use article below only if irrigation system will be Designed/Build.

2. Specify actual pressure when known for project.

Design irrigation system complying with specified performance:

Minimum Working Pressure // Program landscape irrigation pump station settings by the selected irrigation installer to maintain system pressure of minimum 90 psi dynamic while minimum two stations of similar water use volume are in simultaneous operation including stations at or near the furthest uphill interval from the irrigation system point of connection. Do not allow programming of control station to exceed 105 psig. // Stationspecific pressure regulation shall occur at each control valve and shall be set by the selected irrigation installer to the optimum or manufacturer recommended operating pressure of the associated irrigation emission devices downstream of each control valve.

Minimum Design Pressures:

Irrigation Mainline Piping: 1380 kPa (200 psig).

Lateral Piping: 1380 kPa (200 psig).

Valves: 1380 kPa (200psig) WOG.

MATERIALS

Use new materials without flaws or defects.

PRODUCTS - GENERAL

Provide each product from one manufacturer.

PIPE AND FITTINGS

Irrigation Main Pipe:

SPEC WRITER NOTE:

1. Retain pipe required.

2. Modify to 1375 kPa (200 psi) if working pressure exceeds the pipe pressure rating, or if the main is installed beneath pavement.

Ductile Iron Pipe: AWWA C151, minimum working pressure 1025 kPa (150 psi), cement lined, exterior bituminous coated.

Polyvinyl Chloride (PVC) Pressure Pipe: ASTM D1784, PVC 1120, SDR 21 minimum working pressure 1375 kPa (200 psi), gasketing conforming to ASTM F477. Pipe outside diameters, comply with AWWA C151 cast iron pressure pipe to accommodate cast iron fittings.

Polyvinyl Chloride (PVC) Pressure Pipe: ASTM D1784, Class 200, SDR21, rated at 1375 kPa (200 psi), gasketing conforming to ASTM F477.

High Density Polyethylene (HDPE) pipes: AWWA C901. Pipe and fittings PE 3408 HDPE resin compound meeting cell classification 345434C, ASTM D3350; and Type lll, Class C, Category 5, Grade P34, ASTM D1238.

Mainline Pipe Within Sleeves: Provide restrained casing spacers for gasketed joints.

Irrigation Main Fittings:

Ductile Iron Pipe Fittings:

Mechanical Joint Fittings: ANSI A 21.10 (AWWA C110) and ANSI A21.11 (AWWA C111).

Flanged Fittings: ANSI/AWWA C110 and ANSI B16.1 850 kPa(125 lbs.).

PushOn Joints: ASTM D3139 for Laboratory Qualifying Tests. Use pushon rubbergasketed ductile iron fittings.

Gaskets: ASTM F477, rubber.

Joint Restraints: Class 350 Ductile Iron per ASTM A536.

PVC Pipes Fittings:

Mechanical Joint Fittings: ANSI A 21.10 (AWWA C110) and ANSI A21.11 (AWWA C111).

Flanged Fittings: ANSI/AWWA C110 and ANSI B16.1 850 kPa(125 lbs.).

Gaskets: ASTM F477, rubber.

Joint Restraints: Class 350 Ductile Iron per ASTM A536.

High Density Polyethylene (HDPE)Fittings:

Butt, HeatFusion Fittings: ASTM D3261.

Lateral Pipe:

PVC Pipe: ASTM D1784 Rigid, Unplasticized (PVC) 1120, Class 12454A or 12454B, with integral bell end suitable for solvent welding.

Pressure Rated PVC Pipe: ASTM D2241, Class 200, SDR21, 1375 kPa(200 psi) pressure rating.

PVC Pipe: ASTM D2466 and D1784.

Threaded Pipe: ASTM D1785, PVC 1120, Schedule 80 threaded connections, risers and swing joints. Pipe Above Grade and in Concrete Structures: // Ductile Iron meeting AWWA C600, AWWA C115, flanged joints and fittings, working pressure 1025 kPa (150 psi) //.

Lateral Fittings:

Irrigation Laterals: ASTM D2466 PVC, Schedule 40, solvent welded socket type.

Threaded Pipe: ASTM D2464, PVC, Schedule 80.

Swing Joints: Manufacturer's standard with elastomeric seal, allows 360 degree rotation, minimum 1375 kPa (200 psig) working pressure.

Joining Materials:

Irrigation Mains: Rubber gaskets, AWWA C111.

Irrigation Laterals: ASTM D2466 and D1784 PVC Schedule 40, Type 1, solvent weld fittings.

Primer: ASTM F656.

Solvent Cement: ASTM D2564.

Threaded pipes: Teflontype tape or Teflon based paste pipe joint sealant. Use nonhardening, nontoxic pipe joint sealant for watercarrying pipes on metal threaded connections.

SPEC WRITER NOTE:

1. Modify sleeves to reflect design conditions, following Facilities Design Guide for location of irrigation mains.

2. Select appropriate sleeves for locations, depth, soil conditions and loading.

SLEEVES

Sleeves: ASTM D1784 Rigid, Unplasticized (PVC) 1120, Class 12454A or 12454B, with integral bell end.

Pipes Larger than 300 mm (12 inch): AWWA C905, DR18 rated at 1615 kPa (235 psi).

Pipes Smaller than 300 mm (12 inch): // ASTM D2241, Class 200, SDR21 or AWWA C905, DR25 rated at 1375 kPa (200 psi). // or // AWWA C900, rated at 1375 kPa (200 psi). //.

Size: As indicated on Drawings or twice nominal pipe diameter when not shown. Wiring bundle area not exceeding 40 percent of sleeve cross sectional area, according to NEC recommendations.

Restrained Casing Spacers: ASTM A536, Grade 654512 high strength ductile iron.

Restraining Rods: ASTM A242 and ANSI/AWWA C111/A21.11, high strength low alloy material.

Runners: ASTM D1894, ultrahigh molecular weight polymer, 175350 Joules/cm (6001200 ftlbs./in.) tensile impact and coefficient of friction 0.140.17.

SPEC WRITER NOTES:

1. Provide selfrestrained fittings or restraint harnesses for three inch or larger mainline piping.

2. Provide gasketed ends on main line piping three inches or larger.

3. Modify the following depending on size of main into which thrust block is attached. Use thrust blocks only when pipe size exceeds six inches.

4. For bends beneath hardscape for mains 150 mm (6 inch) or larger require plastic and rebar as indicated on the thrust block details.

5. Coordinate specifications with drawing details.

RESTRAINTS

SelfRestrained Fittings: Meeting // ASTM A536 // ANSI/AWWA C153/A21.53 “DuctileIron Compact Fittings For Water Service” or ANSI/AWWA C110/A21.10 “DuctileIron and GrayIron Fittings, 76 mm through 1219 mm (3 inches through 48 inches), For Water” //.

Provide on rubber gasketed pipe pipes 75 mm (3 inch) diameter or larger.

Size: As indicated on Drawings.

Thrust Blocks: Concrete, 20 MPa (3,000 psi), 50 micrometers (2mil) plastic and 12.7 mm (No. 4) rebar wrapped or painted with asphalt tar based mastic coating.

Provide on pipe fittings greater than or equal to 75 mm (3 inch) diameter or rubber gasketed pipe.

Size: As indicated on Drawings.

Joint Restraint Harness: Provide joint restraint harness where joints not positively restrained by flanged fittings, threaded fittings, or retainer glands and thrust blocks.

Provide in ductile iron fittings 76 mm (3 inch) and larger, transition fittings between metal and PVC pipe, where thrust block is not allowed, or where extra support is required to retain fitting or joint.

Provide joint restraint harness or retainer glands with preset torque shearing set screws on mainline gate valve assemblies 76 mm (3 inch) and larger.

Provide stainless steel bolts, nuts, retaining clamps, allthread, or other joint restraint harness materials retainer, ASTM A536, and high strength, low alloy steel bolts and connecting hardware, ANSI/AWWA C111/A21.11.

MAINLINE COMPONENTS

SPEC WRITER NOTES:

1. Provide one or more of the following valve types based upon project specific conditions.

3. Coordinate specifications and drawing details.

Valves (Except Remote Control Valves):

Underground ShutOff Valves:

Gate Valves 50 mm (2 inches) and Larger: AWWA C509, iron body, bronze mounted, double disc with parallel or inclined seats, nonrising stem turning clockwise to close, // 1025 kPa (150 psi) // 1375 kPa (200 psi) // minimum working pressure.

Butterfly Valves 80 mm (3 inches) and Larger: AWWA C504, cast iron body with stainless steel shaft, ductile iron valve disc and resilient rubber coated, // 1025 kPa (150 psi) // 1375 kPa (200psi) // minimum pressure.

Check Valves: Swing.

Smaller than 100 mm (4 inches): ASTM B61 or B62, bronze body and bonnet, 850 kPa (125 pound) WSP.

Larger than 100 mm (4 inches): Iron body, bronze trim, vertical or horizontal installation, flange connection, 1375 kPa (200 pound) WOG.

SPEC WRITER NOTE: Modify as required for project conditions and provide pressure setting for valve in specific location for installation.

Pressure Reducing Valve:

Cast steel body, renewable seats, stainless steel trim, high velocity components. // ASSE: Certified 10032027, Threaded Union inlet and outlet, Cast bronze valve body meeting ASTM B584, Stainless steel 300 Series Internal components and strainer screen //.

Adjustable to desired pressure, within range of operation specified.

AirVacuum Relief Valve: Epoxycoated cast Iron body, polypropylene float, glass fiber reinforced nylon kinetic float, BunaN seals and Orings, stainless steel nuts and bolts, pressure range 14 kPa to 1580 kPa(2 psi to 230 psi). Continuous acting combination air and vacuum and air release valve. // Cast Bronze body meeting ASTM B584, 300 series Stainless Steel, internal components and springs, maximum working pressure 1200 kPa (175 psi). // Bronze Ball Valve with Stainless Steel Handle:

Maximum Pressure: 4140 kPa (600 psi) CWP.

Federal Specification: WWV35C.

Type II.

Composition BZ.

Style 3.

Master Control Valve:

Body and Cover: Polyestercoated.

Spring: Stainless steel.

Diaphragm: Nylon fabric reinforced with rugged insert.

Bolts, Studs, and Nuts: Zinccobalt coated steel.

Tubing and Fitting Control Accessories: Reinforced plastic and brass.

Solenoid: 24V AC.

Operation: // Normally opened // Normally closed // with automatic control globe valve with contaminationproof, selfflushing filter screen.

.Pressure Rating: 16 bar (232 psig).

Operating Pressure Range: 0.5 to 16 bar (7 to 232 psig).

Quick Coupling Valve Assembly:

Description: Brass construction, 1 inch nominal size, operating pressure 35860 kPa (5125 psi), locking rubber or vinyl cover.

Swing Joints: Joint with offsets for flexible joints.

Quick Coupler Anchor: Bolt on anchor type.

SPEC WRITER NOTE: For new installations use high quality brass, bronze or stainless steel manufacturer’s equipment for similar golf course or lite commercial applications.

Valve Box: Acrylonitrile Butadiene Styrene (ABS) Plastic, 10 inch round valve box with // green // brown // black lid // color to match location //.

Filter Fabric: Spunbonded polyester 3.5 oz per sq. yard (118.7 grams per sq. m.) landscape fabric.

SPEC WRITER NOTES:

1. Coordinate specifications with flower watering station facility type and spigot.

2. Revise specifications to provide water through service with isolation valve and pressure regulation valve connection to flower watering spigot.

3. Follow Facilities Design Guide for type of spigot for project location, of new facilities.

4. Revise specs to match existing facilities, unless otherwise noted, note required changes.

Flower Water Station Spigot Connection Assembly: As indicated on Drawings.

Flower Watering Station Spigot: As specified in Section 32 30 00, SITE FURNISHINGS.

Curb Stop Valve: ASTM B62, brass body, 2070 kPa (300 psi) minimum working pressure, female threaded connections, with stop and waste feature.

Inline pressure regulator: Low lead cast body confirming to ASTM B584, 2750 kPa (400 psi) maximum inlet pressure, with 105 to 515 kPa (15 to 75 psi) adjustable outlet pressure.

Copper Pipe: ASTM B88, type “M” soft tubing, wrought copper or cast bronze fittings, soldered, flared mechanical, or threaded joint.

Solder: 95percent tin and 5percent antimony.

Valve Box: Concrete curb valve box, cast iron lid, 200 mm ID x 300mm (8 inch ID by 12 inch), face anchored in concrete.

Valve Box:

Gate and Butterfly Valve:

Materials:

SPEC WRITER NOTES: Retain precast concrete valves box below for pavement areas; HDPE for turf and planter areas.

Precast Concrete: Precast concrete, 30 MPa (4000 psi) compressive strength.

HDPE: Structural foam Type A, Class III, // black // green // tan // in color, minimum 475 mm (19 inches) long by 350 mm (14 inches) wide, 305 mm (12 inches) deep, keylockable hinged lid.

Cover: Mark box cover, differentiate between lawn irrigation system and domestic water supply system, set flush on finished grade.

Operations:

THandle Socket Wrench Operation: Underground valves 50 mm (2 inch) nut.

Handwheels: MSS SP70 Above ground and in pits.

Enclosed Gear Drive Operators: Butterfly valves 150 mm (6 inches) and above.

Accommodate end valves with type of pipe being installed. Provide mechanical joint ends with selfrestrained joints on buried irrigation main valves.

Remote Control Valves:

Materials:

SPEC WRITER NOTES:

1. Retain precast concrete valves box below for pavement areas; HDPE for turf and planter areas.

2. Select polymer concrete boxes for boxes located where vehicular traffic is expected, or for boxes 432 mm (17 inches) or larger.

Precast Concrete: Precast concrete, 30 MPa (4000 psi) compressive strength.

Polymer Concrete: Fiberglass reinforced plastic with Plastic resin binder. Lid to have minimum loading capacity of 3630 kg (8,000 lbs.) per 254 mm by 254 mm (10 inch by 10 inch) square.

HDPE: Structural foam, Type A, Class III.

Color: // Black. // Green. // Tan. //.

Size: Minimum 475 mm (19 inches) long by 350 mm (14 inches) deep with keylockable hinged lid.

SPEC WRITER NOTE: Select Stencil Paint required to match existing conditions, or as directed by Architect/Engineer during project design review.

// After installation, hot brand valve box lid 75 mm (3 inch) // two 80 mm (3 inch) // high, 1 mm (3/16 inch) deep with permanent white epoxy paint, designating controller and circuit numbers. Place numbers in center of valve cover facing nearest main or service road. //.

Provide // ______ // 750 mm (30 inch) long valve adjustment keys.

// Drip zone Lateral Flush Cap Assembly: HDPE round reinforced plastic valve box and lid, minimum 14.5 cm (53/4 inches) diameter top opening with lifthole. Access box height, 23cm (91/16 inches) minimum. //.

// Emitter Access Boxes: HDPE round plastic boxes and lid, color // green, // tan, // 13 cm (5 inches) minimum top diameter, height 26 cm (101/4 inches) minimum. //.

Backflow Preventer: ASSE 1013, reduced pressure principle, except pressure drop, in each new connection to existing potable water distribution system.

Design Flow Rate: Maximum 70 kPa (10 psi).

SPEC WRITER NOTES:

1. Retain applicable Water Meter paragraph.

2. Modify as applicable to install water meter or meters to record all irrigation water sources. Designer to confirm the requirements of meter installation with water provider.

3. Add specifications for water meters to be used by the Government for record keeping of all irrigation water sources for project.

Water Meter Assembly:

Water Meter:

// By Utility Company. //.

// Install Utility Company water meter. //.

// Provide meter approved by Utility Company. Submit approval before installation. //.

Water Meter Pit:

Reinforced poured in place concrete or approved precast concrete.

Size: As indicated on Drawings.

Rungs: Cast iron or aluminum, asphalt coated when in contact with concrete, free of sharp edges, burrs or projections with slip resistant finish.

Size: 25 mm (one inch) diameter, 300 mm (12 inches) wide, 175 mm (7 inches) clear space to wall, minimum 65 mm (2 1/2 inch) depth in wall.

Reinforced Concrete: Same as above except, minimum 150 mm (6 inches) in wall.

Vault Covers:

// Aluminum spring loaded access hatch. // Stainless Steel spring loaded access hatch. // Cast iron access cover. // SPEC WRITER NOTES: Retain option for roadway application.

Frames and Covers: Castiron, // traffic rated // with castin identification symbol "WATER".

SPEC WRITER NOTES: Retain rungs for structure more than 1200 mm (4 feet) in depth.

Strainers: Brass strainer, basket or "Y" type.

Size:

Body smaller than 70 mm (21/2 inch), brass or bronze.

Body 70 mm (21/2 inch) and larger, cast iron or semisteel.

Cover: Provide blowoff connection and shutoff valve for 20 mm (3/4 inch) diameter hose connection.

Pressure Gages: ANSI B40 1, 114 mm (41/2 inch) diameter, metal case, oil filled bottom connected with shutoff cocks.

Dial: Either black or white lacquered throughout. Provide shutoff cocks.

Maximum graduations: 10 kPa (2 psi).

Pipe Supports: Corrosionresistant, galvanized finish.

Plumbing and mechanical equipment supports for basket strainer, pressure reducing valve and master valve.

Flange Cradle: ASTM A36.

Collar/Base Cup: ASTM A53 D.O.M tubing.

Threaded Stud: ASTM A36; rolled thread; Grade ASTM A307.

Base Plate: Sheet steel, 6.5 mm (0.25 inch) plate; ASTM A36.

Welds: 100 percent MIG. Electrode E70XX.

Cradle: Radiused to CL 125 flange diameter, 120 degree coverage.

Backflow Enclosure:

Construction: Vandalresistant steel tube and wire with a smooth surface.

Coating: performance polymer alloy powder.

Locking Mechanism: Stainless Steel full release.

Warranty: One year.

Powder Coat Color: standard dark green.

SPRINKLER IRRIGATION COMPONENTS

Remote Control Valve Assembly:

Remote Control Valve: Globe type, heavy construction, manual shutoff and flow control adjustment for manual operation, minimum 1025 kPa (150 psi) working pressure; higher working pressure for systems that operates with working pressures above 140 psi.

Install underground, operated by a // 24volt AC electric solenoid // 24volt AC/DC direct drive thermal hydraulic motor. // Provide unions on both sides of valve. Provide assembly over gravel sump as indicated on Drawings.

SPEC WRITER NOTE: Retain valves below for normal water or water containing sand.

Valves: Brass or plastic construction, straight or angle pattern type, or castiron body with brass bonnet, trim and renewable seat, and two inlet tappings (furnished with one plugged) to allow straight or angle pattern valve installation.

SPEC WRITER NOTE: Retain valves below for sewage effluent or extremely dirty water.

Valves: Diaphragm type, designed to operate water containing sand and debris, selfcleaning type with contamination filter. Incorporate nonadjustable type opening and closing speed control surge pressures protection, or operate by means of slow acting direct drive without ports, screens or diaphragms.

SPEC WRITER NOTE: Retain valve with pressure regulators when required for the project.

Provide valves with pressure regulators.

Valves Serviceability: From top without removing valve body from system. Provide // ______ // 750 mm (30 inch) long adjustment keys. Operate valves maximum 50 kPa (7 psi) pressure loss at manufacturers maximum recommended flow rate.

PVC Union: Schedule 80 threaded union with Oring seal.

Bronze Ball Valve with Stainless Steel Handle:

Maximum Pressure: 4140 kPa (600 psi) CWP.

Federal Specification: WWV35C.

Type II.

Composition BZ.

Style 3.

Filter Fabric: Spunbond polyester 3.5 oz. per square yard landscape fabric.

Wire connectors: Direct burial 600 V maximum voltage. Wire combination size: (2 to 5) 18 AWG to (2) 12 AWG. UL approved. 3M DBY or DBR.

Identification Tags: Christy I.D. tags. Standard Yellow, one sided. Tag Size: 57 mm by 69 mm (2.25 inch by 2.7 inch), hot stamped black letters on, yellow background. Hot stamp component number code as indicated.

SPEC WRITER NOTE: Modify specifications below to include all irrigation head and drip components being used in the project. Descriptions below are generic.

Popup Gear Driven Rotary Sprinkler Assembly: Integral selfclosing antidrain valve, 3.0 m (10 feet) maximum head pressure with removable inlet debris screen.

Full Sprinklers:

Body: Corrosion resistant, impact resistant, heavyduty ABS outer case.

Head Type: Dual or trinozzle combination positive gear assembly drive on stainless steel spindles in water lubricated sand proof case.

Part Circle Sprinklers: Same as full sprinklers above, except variable arc type.

MultiStream Rotary Nozzles:

Radius and arc as shown on Drawings.

Spray Heads: High impact plastic or brass nozzle with adjusting screw to regulate radius and flow. Heavyduty stainless steel retracting spring and ratcheting system for pattern alignment. Soft elastomer pressureactivated comolded wiper seal.

Body: Heavy duty, ultraviolet resistant plastic sprinkler body, stem, nozzle, with nonclogging filter and pressure compensating screens (PCS).

Head Type: Popup, matched precipitation rate nozzle as shown.

Flow Rate: As indicated on Drawings.

SPEC WRITER NOTE: Modify above and below to include irrigation head and drip components required. Descriptions below are generic.

Pressure Compensating Bubblers:

// 5 gph // 7 gph // 10 gph // as shown. 1.25 cm (1/2 inch) FPT threaded inlet.

Drip Emitters:

Emitter Type: Pressure compensating, permanently assembled type, 1.25cm (1/2 inch) FPT inlet.

Flow Rate: 1gpm at inlet pressures between 15 and 50 psi.

Emitter Tubing: UV resistant vinyl, 6mm (0.22 inch) O.D. and 4 mm (0.16 inch) I.D., manufactured by same manufacturer as emitters.

Low Voltage Control Valve Wire:

Wire: Solid copper wire, UL LLC approved for direct burial.

Size: According to manufacturer's instructions, but minimum AWG 14.

Splicing Materials: Epoxy waterproof sealing packet.

Low Voltage Controller Cable: Multistrand, UL LLC approved for direct burial.

Number, Size and Type: According to manufacturer’s instructions.

// DecodertoSolenoid (DTS) Cables 14 AWG, solid copper; 2conductor; Use jacketed wire pairs with colors matching jacketed wires on decoders for connecting decoders to control valves. // SPEC WRITER NOTE: Use nondetectable type at cemeteries only.

Warning Tape: Polyethylene film warning tape, 0.1 mm (4 mils) thick, 75 mm (3 inches) wide, // detectable // nondetectable //, imprinted with “CAUTION BURIED IRRIGATION WATER LINE BELOW”, colored as follows:

Blue with Black Letters: Potable water.

Purple with Black Letters: Reclaimed or untreated well water.

Tracer Wires: Plasticcoated copper tracer wire, 1.8 mm (14 gage), green, Type TW. Install with nonmetallic irrigation main lines.

Decoders for TwoWire Operation:

Decoder: Solidstate design, housed in a watertight molded plastic housing.

Decoder leads: 18gauge, insulated, stranded copper.

Colors as indicated.

Wire Leads: Minimum of 305 mm (12 inches) long.

Wire Connections: Watertight electrical connections suitable for the wire type being connected.

Decoders: Mounted underground in separate 305 mm by 457 mm (12 inch by 18 inch) valve boxes, or with remote control valves. Fastened to inside of valve boxes with stainless steel selftapping screws. Brand valve boxes containing decoders “SP” in 50 mm (2 inch) high letters, painted with permanent white epoxy paint. Place boxes on 457 mm (18 inch) deep bed of pea gravel.

26VAC input service provided by the twowire communication path.

Provide factory precoded decoders with 1, 2, or 4 addresses, each activating one remote valve solenoid.

Use 4 address decoders to extent. Include line surge protection.

Provide manufacturer’s optional barcode scannerbased decoder programming unit to input decoder addresses. Provide programming unit capable of backing up and restoring programs.

Field Decoders: TWD1 (One station decoder, includes dry splices); TWD2 (Two station decoder, includes dry splices); TWD4 (Four station decoder, includes dry splices).

Decoder Cable Fuse Device: Paige Electric DCFD 2way and DCFD3 3way electrical isolation devices; or approved equal.

Lightning Arrestor: Rain Master TWLA1, or approved equal.

Grounding Rods: 16 mm by 2.5 meters (5/8 inch diameter by 8foot long) copper ground rod, copper clamp and #6 bare copper wire; ULapproved; sized per manufacturer's instructions.

TwoWire Decoder Cable:

Twoconductor control cable design consisting of tin coated copper conductors, insulated with PVC and having a high density polyethylene direct burial jacket. Conductors are listed as Type UF by UL or ETL or CSA.

Conductor: Minimum conductor size 14 AWG; soft annealed tin coated solid copper conforming to ASTM B33.

Insulation: Polyvinyl Chloride conforming to UL Standard 493 for TYPE UF rated 60°C.

Cable Assembly: Insulated conductors are laid parallel.

Outer Jacket: Pressure Extruded High Density PE conforming to ICEA S61402, and NEMA WC5 Jacket Thickness 1.2 mm (3/64 inch) minimum jacket material to completely fill interstices between the two insulated conductors.

Color Coding: Black, Red.

Jacket Color: Blue. (Use a different jacket color for each controller on the project).

Hard Wire Communication Cable: Direct burial, polymercoated aluminum shielded, insulated, 1pair multiconductor, with polyethylene outer jacket for connecting satellite controllers with each other.

Provide two 20 AWG, full braid shield, 100 Ohm impedance. One copper conductor and one silver tinned conductor, black jacket, rated for direct burial shielded communication cable used for hardwire satellite serial link. Cable shall not exceed 5000 feet in length.

All cable must be certified by Rain Master Irrigation systems.

Flow Sensor Cable: Directburial, polymercoated aluminum shielded, insulated, 1pair multiconductor, with polyethylene outer jacket for connecting flow sensors with satellite controllers.

Two 20 AWG foil shield w/drain, black jacket, rated for directburial BLK, WHT. Two conductor direct burial shielded cable used with all field sensor connections to satellites such as flow sensors. Cables not to exceed 609 meters (2000 feet) in length.

Cables must be certified by Rain Master Irrigation systems.

Communication Cable Splice and Cap: A threepart, rigid body closure that selfencapsulates twoand fivepair buried service wire. It has a builtin bonding system that bonds the buried service wire shield as the splice is put together. The special formulated sealant is a onepart, nomix, nonurethane product containing no grease.

Electrical Conduit and Fittings: Highimpact Schedule 40 PVC C2000 compound, UL approved, gray color, size as required. Solventweld fittings.

Pull Rope for Empty Conduits: 1/4 inch diameter, 12strand, 544 kg (1,200 lb) tensile strength braided polypropylene rope.

Drainage Backfill: Clean gravel or crushed stone, graded from 6 mm (1/4 inches) minimum to 19 mm (3/4 inch) maximum.

Pipe Bedding and Initial Backfill: Clean sand per Section 31 20 00 EARTH MOVING for trenching and backfilling of utilities.

CONTROL SYSTEM COMPONENTS

SPEC WRITER NOTE:

1. Retain below for projects having one or more field satellites.

Automatic Central Control EquipmentField Satellites:

Overall Control Concept: Central computer system; contains irrigation starting controls, capable of overriding field satellite units, and operating individual remote control valves according to timing schedules programmed into // central // field units //.

Number of Units and Locations: As indicated on Drawings.

SPEC WRITER NOTE:

1. Modify as required to indicate components included in system for this project. Add additional equipment where required to provide communication between water supply source equipment and irrigation equipment.

Central Computer Control System: Manufacturer's standard components; Central Computer, // Master Flow Meter, // Leak Detection Flow Meters, // Moisture Sensor, // ET Measurement Device, // Rain Measurement Device, // Wind Measurement Device, // Central Control Software, // Field Controller // and necessary components and software in standard package supplied by irrigation control manufacturer.

SPEC WRITER NOTES:

Listing in spec note following is only guideline. Manufacturer and models vary.

1. Modify performance criteria for Central Computer Control System, without indicating manufacturer. Accurately define functioning and operational components.

2. Modify where Central Computer Control System match existing system, clarify whether full system replacement of Central and satellites is acceptable instead of matching existing.

3. Modify to include function and performance information. Describe how system operates and provide desired leak detection performance. Describe causes of alarm conditions, specify system shut down level which occurs as a result of alarm conditions.

4. Specify exactly how new irrigation system components are to be integrated with existing and what modification, replacement, upgrading, etc. is required for the existing system.

5. Prepare performance based narrative. escribing how system operates din normal automatic conditions; manual conditions; partial shutdown conditions and emergency shut down conditions.

6. Prepare performancebased narrative describing water supply source operates in conjunction with irrigation Central Computer equipment.

Central Computer Control System:

SPEC WRITER NOTES:

Listing in spec note following is only guideline, Manufacturer and models vary. Accurately define material and operational components.

1. Controller should be capable of reading flow meter and recording flow for each station. Logging reading for xx water days, including run times, water use, and operational characteristics.

2. Receiving and storing onsite, daily ET weather data and accumulated rainfall to automatically determine station run times in minutes.

3. Operating multiple master schedules to allow daily, weekly programming.

4. Comparing water budget proportionate to historical ET.

5. Operating Cycle and Soak watering.

6. Containing full, builtin English and Spanish operating manual.

7. Detecting electrical faults and bypass, and logging all alerts.

8. Programming rain shut down.

9. Activating/deactivating master valve control.

10. Optional integrated Radio Remote compatible.

11. Starting pump.

12. Monitoring flow within operatorset parameters.

13. Builtin transient protection and lightning protection.

Performance Criteria:

SPEC WRITER NOTES:

Listing in spec note following is only guideline, individual manufacturer and models vary. Accurately define material and operational components.

1. Identify housing materials.

2. Define pulse output, Voltage and pulse rate proportional to flow.

3. Fully compatible with internal interface of controller.

4. Powered by the controller.

5. Flow meter data can be accurately read by the controller up to X,XXX feet.

6. By the same manufacturer as the irrigation controller.

7. Define/describe unit features/sensing features.

Flow Meter:

SPEC WRITER NOTES:

Listing in spec note following is only guideline, individual manufacturer and models vary. Accurately define material and operational components.

1. Solidstate tensiometer type.

2. Include data transmission circuitry, which sends moisture level readings back to irrigation controller using valve field wires.

3. Entire unit encased in epoxy.

4. Require no calibration for life of the sensor.

5. Unaffected by temperature, salinity or changes in pH.

6. Accurately transmit moisture levels up to x,xxx ft.

Moisture Sensors:

SPEC WRITER NOTES:

Listing in spec note following is only guideline, individual manufacturer and models vary. Accurately define material and operational components.

1. Powered by field controller.

2. Measures ET directly in 0.01" increments and sends pulses directly to field controller.

3. Fully compatible with internal interface at field controller.

4. Mounted inside stainless steel, vandalresistant enclosure specifically designed for the device.

ET Measurement Device:

SPEC WRITER NOTES:

Listing in spec note following is only guideline, individual manufacturer and models vary. Accurately define material and operational components.

1. Accurately measures rainfall in 0.01" increments by means of a tipping and emptying device mounted below center of collection dish.

2. Fully compatible with internal interface at field controller.

3. Operate between 32 degrees F and 125 degrees F.

4. Be constructed of anodized aluminum.

5. Controller sets the following programming parameters for rain.

Rain Measurement Device:

SPEC WRITER NOTES:

Listing in spec note following is only guideline, individual manufacturer and models vary. Accurately define material and operational components.

1. Accurately define material and operational components.

2. Powered by field controller.

3. Accurately measures wind in 0.1 mph increments.

4. Fully compatible with internal interface at field controller.

5. Operate between 50 degrees C and + 50 degrees C.

6. Be constructed of anodized aluminum.

7. Record wind speeds up to 140 MPH.

8. Controller sets the following programming parameters for wind:

Wind Measurement Device:

SPEC WRITER NOTES:

Listing in spec note following is only guideline, individual manufacturer and models vary. Accurately define material and operational components.

1. Operates on Windows compatible computer with minimum 16 MB memory.

2. Requires 300 megabytes hard disk space for program and files.

3. Functions on any combination of phone, or local radio, or hardware interface.

4. Allows uploading and downloading programs and log data by controller or groups of controllers.

5. Has realtime access to run stations and programs, check master valve operation, and operate controllers.

6. Capable of printing alerts based on operatorset data filters; automatically creating permanent files each time data is uploaded.

7. Allows program, log, summary and alert data for each controller to be printed selectively.

8. Capable of automatically uploading weather station, and Rain Bucket and redistributing to field units.

9. Capable to operate up to x,xxx controllers.

10. Capable of automatically retrieving water usage data and writing to text files monthly.

11. Capable of allowing user override changes.

12. Communication links or central control system failure cannot affect normal water management operation of field controllers.

Central Computer Software.

SPEC WRITER NOTES:

Listing in spec note following is only guideline, individual manufacturer and models vary. Accurately define material and operational components.

1. When using digital radio, radio shall be an internal packetswitched digital radio modem capable of twoway communication on Mobitex public network.

2. When using radio, radio modem and all interface boards shall be mounted inside the controller and powered by the same 24VAC internal transformer.

3. A vandalresistant epoxyfilled dome antenna shall be used in any type of radio communication.

Field Controllers with Central Communication:

Conduct an onsite radio test with manufacturer to verify satisfactory operation before submitting a bid for radio control.

SPEC WRITER NOTE:

1. Equipment type in paragraph below is for addition to existing system, but is not VA preference.

2. For smaller projects with independent controllers, retain Electric or Solar Powered Controller as conditions permit.

Automatic Control EquipmentIndependent Satellite Controllers:

Overall Control Concept. Electric automatic control system consists of independent satellite controllers operating individual remote control valves according to timing schedules programmed in each independent…