SECTION 15510

HYDRONIC PIPING

PART 1 GENERAL

WORK INCLUDED

Pipe and pipe fittings.

Valves.

Heating water piping system.

Glycol water piping system.

Chilled water piping system.

Condenser water piping system.

RELATED WORK

Section 08305 - Access Doors.

Section 09900 - Painting.

Section 15060 - Pipe and Pipe Fittings: Piping specialties.

Section 15121 - Expansion Compensation.

Section 15140 - Supports and Anchors.

Section 15190 - Mechanical Identification.

Section 15242 - Vibration Isolation.

Section [_____ - _____:] Mechanical seismic control.

Section 15260 - Piping Insulation.

Section 15515 - Hydronic Specialties.

Section [_____ - _____:] Pipe cleaning.

REFERENCES

ANSI/ASME - Boiler and Pressure Vessel Code.

ANSI/ASME Sec 9 - Welding and Brazing Qualifications.

ANSI/ASME B16.3 - Malleable Iron Threaded Fittings Class 150 and 300.

ANSI/ASME B16.23 - Cast Copper Alloy Solder Joint Drainage Fittings - DWV.

ANSI/ASME B16.29 - Wrought Copper and Wrought Copper Alloy Solder Joint Drainage Fittings - DWV.

ANSI/ASME B31.9 - Building Services Piping.

ANSI/ASTM D2466 - Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 40.

ANSI/AWS A5.8 - Brazing Filler Metal.

ANSI/AWS D1.1 - Structural Welding Code.

ANSI/AWWA C105 - Polyethylene Encasement for Ductile Iron Piping for Water and Other Liquids.

ANSI/AWWA C110 - Ductile - Iron and Gray - Iron Fittings 3 in. through 48 in., for Water and Other Liquids.

ANSI/AWWA C111 - Rubber-Gasket Joints for Ductile Iron and Gray-Iron Pressure Pipe and Fittings.

ANSI/AWWA C151 - Ductile-Iron Pipe, Centrifugally Cast in Metal Molds or Sand-Lined Molds, for Water or Other Liquids.

ASTM A53 - Pipe, Steel, Black and Hot-Dipped Zinc Coated, Welded and Seamless.

ASTM A120 - Pipe, Steel, Black and Hot-Dipped Zinc Coated (Galvanized), Welded and Seamless, for Ordinary Uses.

ASTM A234 - Pipe Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and Elevated Temperatures.

ASTM B32 - Solder Metal.

ASTM B88 - Seamless Copper Water Tube.

ASTM D1785 - Poly (Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80, and 120.

ASTM D2235 - Solvent Cement for Acrylonitrile-Butadiene-Styrene (ABS) Plastic Pipe and Fittings.

ASTM D2241 - Poly (Vinyl Chloride) (PVC) Plastic Pipe (SDR-PR).

ASTM D2310 - Machine-Made Reinforced Thermosetting Resin Pipe.

ASTM D2466 - Socket-Type PVC Plastic Type Fittings, Schedule 40.

ASTM D2467 - Socket-Type PVC Plastic Type Fittings, Schedule 80.

ASTM D2680 - Acrylonitrile-Butadiene-Styrene (ABS)

Composite-Sewer Piping.

ASTM D2683 - Socket-Type Polyethylene Fittings for Outside Diameter-Controlled Polyethylene Pipe and Tubing.

ASTM D2751 - Acrylonitrile-Butadiene-Styrene (ABS) Sewer Pipe and Fittings.

ASTM D2855 - Making Solvent-Cemented Joints with PVC Pipe and Fittings.

ASTM F477 - Elastomeric Seals (Gaskets) for Joining Plastic Pipe.

REGULATORY REQUIREMENTS

Conform to ANSI/ASME B31.9.

QUALITY ASSURANCE

Valves: Manufacturer's name and pressure rating marked on valve body.

Welding Materials and Procedures: Conform to ANSI/ASME SEC 9[.] [and applicable state labor regulations.]

Welders Certification: In accordance with [ANSI/ASME SEC 9.] [ANSI/AWS D1.1.] [____________________.]

SUBMITTALS

Submit product data under provisions of Section [01300.] [01340.]

Include data on pipe materials, pipe fittings, valves, and accessories.

Include welders certification of compliance with [ANSI/ASME SEC 9.] [ANSI/AWS D1.1.] [____________________.]

DELIVERY, STORAGE, AND HANDLING

Deliver products to site under provisions of Section [01600.] [01610.]

Store and protect products under provisions of Section [01600.] [01620.]

Deliver and store valves in shipping containers with labelling in place.

PART 2 PRODUCTS

HEATING WATER [AND GLYCOL] PIPING, BURIED

Steel Pipe: ASTM A53 or A120, Schedule 40, [0.375 inch (10 mm) wall for sizes 12 inch (300 mm) and over,] black[.] [with ANSI/ASME C105 polyethylene jacket, or double layer, half-lapped 10 mil (0.25 mm) polyethylene tape.]

Fittings: ASTM A234, forged steel welding type[.] [with double layer, half-lapped 10 mil (0.25 mm) polyethylene tape.]

Joints: ANSI/AWS D1.1, welded.

Casing: [Closed glass cell insulation.] [Polyurethane insulation with high density polyethylene jacket and heat shrink sleeves.] [_____________________________.]

Copper Tubing: ASTM B88, Type [K,] [L,] [M,] [hard drawn.] [annealed.]

Fittings: ANSI/ASME B16.29 wrought copper.

Joints: [ASTM B32, solder, Grade 95TA.] [ANSI/AWS A5.8 BCuP silver braze.]

Casing: [Closed glass cell insulation.] [Polyurethane insulation with high density polyethylene jacket and heat shrink sleeves.] [___________________________.]

HEATING WATER [AND GLYCOL] PIPING, ABOVE GROUND

Steel Pipe: ASTM A53 or A120, Schedule 40, [0.375 inch

(10 mm) wall for sizes 12 inch (300 mm) and over,] black.

Fittings: ANSI/ASTM B16.3, malleable iron or ASTM A234, forged steel welding type fittings.

Joints: Screwed, or ANSI/AWS D1.1, welded.

Copper Tubing: ASTM B88, Type [M,] [L,] [K,] hard drawn.

Fittings: ANSI/ASME B16.23 cast brass of ANSI/ASME B16.29 solder wrought copper.

Joints: [ASTM B32, solder, Grade 95TA.] [ANSI/AWS A5.8, BCuP silver braze.]

CHILLED WATER PIPING, BURIED

Steel Pipe: ASTM A53 or A120, Schedule 40, [0.375 inch(10 mm) wall for sizes 12 inch (300 mm) and over,] black[.] [with ANSI/AWWA C105 polyethylene jacket, or double layer, half-lapped 10 mil (0.25 mm) polyethylene tape.]

Fittings: ASTM A234, forged steel welding type.

Joints: ANSI/AWS D1.1, welded.

Casing: [Closed glass cell insulation.] [Polyurethane insulation with high density polyethylene jacket and heat shrink sleeves.] [___________________________.]

Copper Tubing: ASTM B88, Type [K,] [L,] [M,] [hard drawn.] [annealed.]

Fittings: ANSI/ASME B16.29 wrought copper.

Joints: [ANSI/ASTM B32, solder, Grade 95TA.] [ANSI/WS A5.8, BCuP silver braze.]

Casing: [Closed glass cell insulation.] [Polyurethane insulation with high density polyethylene jacket and heat shrink sleeves.] [___________________________.]

PVC Pipe: ASTM D1785, Schedule 40, [and Schedule 80 for sizes 8 inch (200 mm) and larger,] or ASTM D2241, SDR 21 or 26.

Fittings: ASTM D2466, or D2467, PVC.

Joints: ASTM D2855, solvent weld.

Cast Iron Pipe: ANSI/AWWA C151.

Fittings: Ductile iron, standard thickness.

Joints: ANSI/AWWA C111, rubber gasket with 3/4 inch (19 mm) diameter rods.

RTR Pipe: ASTM D2310, fiberglass reinforced thermosetting resin plastic.

Fittings: Fiberglass reinforced epoxy.

Joints: [Hub-and-spigot with rubber gasket.] [Non-threaded, union or flanged coupling.]

CHILLED WATER PIPING, ABOVE GRADE

Steel Pipe: ASTM A53 or A120, Schedule 40, [0.375 inch

(10 mm) wall for sizes 12 inch (300 mm) and over,] black.

Fittings: ANSI/ASTM B16.3, malleable iron or ASTM A234, forged steel welding type.

Joints: Screwed for pipe 2 inch (50 mm) and under; ANSI/AWS D1.1 welded for pipe over 2 inch (50 mm).

Copper Tubing: ASTM B88, Type [M,] [L,] [K,] hard drawn.

Fittings: ANSI/ASME B16.23 cast brass or ANSI/ASME B16.29 solder wrought copper.

Joints: [ASTM B32, solder, Grade 95TA.] [ANSI/AWS A5.8, BCuP silver braze.]

PVC Pipe: ASTM D1785, Schedule 40, [and Schedule 80 for sizes 8 inch (200 mm) and larger,] or ASTM D2241, SDR 21 or 26.

Fittings: ASTM D2466 or D2467, PVC.

Joints: ASTM D2855, solvent weld.

RTR Pipe: ASTM D2310, fiberglass reinforced thermosetting resin plastic.

Fittings: Fiberglass reinforced epoxy.

Joints: [Hub-and-spigot with rubber gasket.] [Non-threaded, union or flanged coupling.]

CONDENSER WATER PIPING, BURIED

Steel Pipe: ASTM A53 or A120, Schedule 40, [0.375 inch (10 mm) wall for sizes 12 inch (300 mm) and over,] black[.] [with ANSI/AWWA C105 polyethylene jacket, or double layer, half-lapped 10 mil (0.25 mm) polyethylene tape.]

Fittings: ASTM A234, forged steel welding type[.] [with double layer, half-lapped 10 mil (0.25 mm) polyethylene tape.]

Joints: Screwed for pipe 2 inch (50 mm) and under; ANSI/AWS D1.1, welded for pipe over 2 inch (50 mm).

Copper Tubing: ASTM B88, Type [K,] [L,] [M,] [hard drawn.] [annealed.]

Fittings: ANSI/ASME B16.29 wrought copper.

Joints: [ANSI/ASTM B32, solder, Grade 95TA.] [ANSI/AWS A5.8, BCuP silver braze.]

PVC Pipe: ASTM D1785, Schedule 40, [and Schedule 80 for sizes 8 inch (200 mm) and larger,] or ASTM D2241, SDR 21 or 26.

Fittings: ASTM D2466 or D2467, PVC.

Joints: ASTM D2855, solvent weld.

Cast Iron Pipe: ANSI/AWWA C151.

Fittings: Ductile iron, standard thickness.

Joints: ANSI/AWWA C111, rubber gasket with 3/4 inch (19 mm) diameter rods.

RTR Pipe: ASTM D2310, fiberglass reinforced thermosetting resin plastic.

Fittings: Fiberglass reinforced epoxy.

Joints: [Hub-and-spigot with rubber gasket.] [Non-threaded, union or flanged coupling.]

CONDENSER WATER PIPING, ABOVE GROUND

Steel Pipe: ASTM A53 or A120, Schedule 40, [0.375 inch (10 mm) wall for sizes 12 inch (300 mm) and over,] [black.] [galvanized.]

Fittings: ANSI/ASTM B16.3, [galvanized] malleable iron or ASTM A234, [galvanized] forged steel welding type.

Joints: Screwed, or ANSI/AWS D1.1 welded.

Copper Tubing: ASTM B88, Type [M,] [L,] [K,] hard drawn.

Fittings: ANSI/ASME B16.23 cast brass, or ANSI/ASME B16.29 solder wrought copper.

Joints: [ASTM B32, solder, Grade 95TA.] [ANSI/AWS A5.8, BCuP silver braze.]

PVC Pipe: ASTM D1785, Schedule 40, [and Schedule 80 for sizes 8 inch (200 mm) and larger,] or ASTM D2241, SDR 21 or 26.

Fittings: ASTM D2466 or D2467, PVC.

Joints: ASTM D2855, solvent weld.

RTR Pipe: ASTM D2310, fiberglass reinforced thermosetting resin plastic.

Fittings: Fiberglass reinforced epoxy.

Joints: [Hub-and-spigot with rubber gasket.] [Non-threaded, union or flanged coupling.]

EQUIPMENT DRAINS AND OVERFLOWS

Steel Pipe: ASTM A53 or A120, Schedule 40 galvanized.

Fittings: Galvanized cast iron, or ANSI/ASTM B16.3 malleable iron.

Joints: Screwed, or grooved mechanical couplings.

Copper Tubing: ASTM B88, Type [M,] [L,] [K,] hard drawn.

Fittings: ANSI/ASME B16.23 cast brass, or ANSI/ASME B16.29 solder wrought copper.

Joints: [ASTM B32, solder, Grade 95TA.] [ANSI/AWS A5.8, BCuP silver braze.]

PVC Pipe: ASTM D1785, Schedule 40, [and Schedule 80 for sizes 8 inch (200 mm) and larger,] or ASTM D2241, SDR 21 or 26.

Fittings: ASTM D2466 or D2467, PVC.

Joints: ASTM D2855, solvent weld.

ABS Pipe: ASTM D2680 or D2751.

Fittings: ASTM D2751.

Joints: ASTM D2235, solvent weld.

FLANGES, UNIONS, AND COUPLINGS

Pipe Size 2 Inches (50 mm) and Under: 150 psig (1 034 kPa) malleable iron unions for threaded ferrous piping; bronze unions for copper pipe, soldered joints.

Pipe Size Over 2 Inches (50 mm): 150 psig (1 034 kPa) forged steel slip-on flanges for ferrous piping; bronze flanges for copper piping; 1/16 inch (1.6 mm) thick preformed neoprene bonded to asbestos.

Grooved and Shouldered Pipe End Couplings: Malleable iron housing clamps to engage and lock, designed to permit some angular deflection, contraction, and expansion; C-shape elastomer composition sealing gasket for operating temperature range from -30 degrees F (-34 degrees C) to 230 degrees F (110 degrees C); steel bolts, nuts, and washers; galvanized couplings for galvanized pipe.

ACCEPTABLE MANUFACTURERS - GATE VALVES

[___________________________________________.]

[___________________________________________.]

[___________________________________________.]

Substitutions: Under provisions of section [01600.] [01630.]

GATE VALVES

Up to 2 Inches (50 mm): Bronze body, bronze trim, [non-rising] [rising] stem, handwheel, inside screw, [single] [double] wedge or disc, [solder] [threaded] ends.

Over 2 Inches (50 mm): Iron body, bronze trim, [rising] [non-rising] stem, handwheel, OS&Y, [single] [double] wedge, [flanged] [grooved] ends.

ACCEPTABLE MANUFACTURERS - GLOBE VALVES

[___________________________________________.]

[___________________________________________.]

[___________________________________________.]

Substitutions: Under provisions of section [01600.] [01630.]

GLOBE VALVES

Up to 2 Inches (50 mm): Bronze body, bronze trim, rising stem and handwheel, inside screw, renewable composition disc, [solder] [screwed] ends, with backseating capacity[.] [repackable under pressure.]

Over 2 Inches (50 mm): Iron body, bronze trim, rising stem, handwheel, OS&Y, plug-type disc, flanged ends, renewable seat and disc.

ACCEPTABLE MANUFACTURERS - BALL VALVES

[___________________________________________.]

[___________________________________________.]

[___________________________________________.]

Substitutions: Under provisions of section [01600.] [01630.]

BALL VALVES

Up to 2 Inches (50 mm): [Bronze] [Stainless steel] [one] [two] piece body, stainless steel ball, teflon seats and stuffing box ring, lever handle[,] [and balancing stops,] [solder] [threaded] ends[.] [with union.]

Over 2 Inches (50 mm): Cast steel body, chrome plated steel ball, teflon seat and stuffing box seals, lever handle[,] [or gear drive handwheel for sizes 10 inches (250 mm) and over,] flanged.

ACCEPTABLE MANUFACTURERS - PLUG COCKS

[___________________________________________.]

[___________________________________________.]

[___________________________________________.]

Substitutions: Under provisions of section [01600.] [01630.]

PLUG COCKS

Up to 2 Inches (50 mm): Bronze body, bronze tapered plug, non-lubricated, teflon packing, threaded ends, with one wrench operator for every ten plug cocks.

Over 2 Inches (50 mm): Cast iron body and plug, pressure lubricated, teflon packing, flanged ends, with wrench operator with set screw.

ACCEPTABLE MANUFACTURERS - BUTTERFLY VALVES

[___________________________________________.]

[___________________________________________.]

[___________________________________________.]

Substitutions: Under provisions of section [01600.] [01630.]

BUTTERFLY VALVES

Iron body, [bronze] [aluminum bronze] [stainless steel] disc, resilient replaceable seat for service to [180 degrees F (82 degrees C),] [250 degrees F (121 degrees C),] wafer or lug ends, extended neck, [10 position lever handle.] [infinite position lever handle with memory stop.] [handwheel and gear drive.]

ACCEPTABLE MANUFACTURERS - SWING CHECK VALVES

[___________________________________________.]

[___________________________________________.]

[___________________________________________.]

Substitutions: Under provisions of section [01600.] [01630.]

SWING CHECK VALVES

Up to 2 Inches (50 mm): Bronze [45] [22] degree swing disc, [solder] [screwed] ends.

Over 2 Inches (50 mm): Iron body, bronze trim, [45] [22] degree swing disc, renewable disc and seat, flanged ends.

ACCEPTABLE MANUFACTURERS - SPRING LOADED CHECK VALVES

[___________________________________________.]

[___________________________________________.]

[___________________________________________.]

Substitutions: Under provisions of section [01600.]

[01630.]

SPRING LOADED CHECK VALVES

Iron body, bronze trim, stainless steel spring, renewable composition disc, screwed, wafer or flanged ends.

ACCEPTABLE MANUFACTURERS - RELIEF VALVES

[___________________________________________.]

[___________________________________________.]

[___________________________________________.]

Substitutions: Under provisions of section [01600.] [01630.]

RELIEF VALVES

Bronze body, teflon seat, stainless steel stem and springs, automatic, direct pressure actuated, capacities ASME certified and labelled.

PART 3 EXECUTION

PREPARATION

Ream pipe and tube ends.	Remove burrs. [Bevel plain end ferrous pipe.]

Remove scale and dirt on inside and outside before assembly.

Prepare piping connections to equipment with flanges or unions.

After completion, fill, clean, and treat systems. Refer to Section [_____.]

INSTALLATION

Route piping in orderly manner, plumb and parallel to building structure, and maintain gradient.

Install piping to conserve building space, and not interfere with use of space and other work.

Group piping whenever practical at common elevations.

Install piping to allow for expansion and contraction without stressing pipe, joints, or connected equipment. Refer to Section 15121.

Provide clearance for installation of insulation, and access to valves and fittings.

Provide access where valves and fittings are not exposed. [Coordinate size and location of access doors with Section 08305.]

Slope piping and arrange systems to drain at low points. Use eccentric reducers to maintain top of pipe level.

Where pipe support members are welded to structural building framing, scrape, brush clean, and apply one coat of zinc rich primer to welding.

Prepare pipe, fittings, supports, and accessories for finish painting. Refer to Section 09900.

Install valves with stems upright or horizontal, not inverted.

APPLICATION

Use grooved mechanical couplings and fasteners only in accessible locations.

Install unions downstream of valves and at equipment or apparatus connections.

Install brass male adapters each side of valves in copper piped system. Sweat solder adapters to pipe.

Install [gate] [ball] [butterfly] valves for shut-off and to isolate equipment, part of systems, or vertical risers.

Install [gate] [ball] [butterfly] valves for throttling, bypass, or manual flow control services.

Provide spring loaded check valves on discharge of condenser water pumps.

Use plug cocks for throttling service. Use non-lubricated plug cocks only when shut-off or isolating valves are also provided.

Use butterfly valves [in heating water systems] [in chilled and condenser water systems] [in heating, chilled and condenser water systems] interchangeably with gate and globe valves.

Use only butterfly valves in chilled and condenser water systems for throttling and isolation service.

Use lug end butterfly valves to isolate equipment.

Provide 3/4 inch (20 mm) [gate] [ball] drain valves at main shut-off valves, low points of piping, bases of vertical risers, and at equipment. [Pipe to nearest drain.]

END OF SECTION