University Facilities

Division 22 - Plumbing


 

22 00 00 General Information

Design

Provide design for a complete plumbing system with specifications and drawings that show floor plans, water risers, waste and vent risers, and details. The design of the domestic water system must be complete with water meter, back flow preventer, etc., showing routing, pipe sizes and other necessary details. Design must also include adequate sectionalizing valves to allow maintenance of the system without shutting down the entire facility.

Consult the  Manual for Planning and Execution of the State Permanent Improvements for information concerning requirements, codes, and standards that are applicable to this design. The design shall comply with all local codes having jurisdiction, OSHA regulations, ADA compliance, and any applicable seismic codes.

The designer shall pay particular attention to the coordination of installations under this division with those installations specified under Divisions 23, 26, and 33, including the provision for power to be supplied to any equipment by specification under Division 26. The exterior utility system must be specified as indicated under Division 33.

The consulting A/E shall give special attention to insuring that all required permits for construction and/or operation of any component of this project are obtained from the appropriate regulating authority and that they are obtained within the prescribed time. It is the consultant’s responsibility to insure that these permits are obtained.

Clearly specify that the products to be provided for installation under this Division are in strict accordance with the Product and Material listing for this Division.

22 05 00 Common Work Results for Plumbing

Meters and Gauges for Plumbing Piping

Pressure gauges shall have maximum readings approximately two times the expected working pressure. A gauge cock must be specified between each gauge and the main line.

Valves

Specify that valves be installed with stems horizontal or above except as required for accessibility. Arrange valve handles to be easily accessible.

All valves shall be identified with metal tags.

Specify that valves be installed at all locations requiring shut off during maintenance.

Require that hose bibcocks shall be freeze protected with an escutcheon plate on the wall. All hose bibcocks, including wall hydrants and sill cocks shall be equipped with a vacuum breaker as per instructions from the S.C. Department of Health and Environmental Control (DHEC).

Hangers and Supports for Plumbing Piping and Equipment

The design shall provide foundations, supports, and means of attachment to the structure for all equipment, fixtures, and piping under this Division.

Specify the use of the appropriate beam clamps, brackets, and expansion shields for supporting and securing equipment, fixtures, and piping.

Specify wall clamps and brackets used for support of piping and equipment from concrete or solid masonry shall be secured will self-drilling concrete fasteners. Clamps and brackets on hollow masonry block construction shall be supported with toggle bolts.

Specify that horizontal, parallel, and adjacent piping shall be supported by gang hangers with appropriately sized hanger rods (3/8” minimum) and clamps to match the pipe.

Specify that hangers supporting insulated piping be sized to fit over the insulation.

Specify that supports and clamps in contact with copper pipe shall be copper plated.

Vibration and Seismic Controls for Plumbing Piping and Equipment

Shock absorbers for plumbing fixtures shall be the same size as the line on which they are installed, up to 1” pipe size. Pipe lines larger than 1” shall have one inch shock absorbers installed. Shock absorbers must be installed at the end of all branch lines. No pipe extensions are to be used in place of shock absorbers.

Identification for Plumbing Piping and Equipment

Specify that all piping is to be marked and coded with color coded tape as follows, in a neat and uniform manner. Markings shall not exceed 20 feet apart in mechanical rooms. The wording and color coding shall be coordinated with other mechanical, electrical, and other trades and suppliers.

See Utility Piping Identification for specific markings.

Facility Drainage Piping Cleanouts

The design shall include all necessary clean-outs for efficient maintenance of the waste piping system for the facility. Clean-outs located in exposed areas of the facility shall be equipped with a chrome plated cover plate. Provide clean-outs in each exposed P-Trap not integral with the fixture. Clean-outs shall be the same nominal size of the pipe for sizes 4” and smaller and 4” nominal size for larger pipe.

22 07 00 Plumbing Insulation

New insulation systems must conform to adopted energy code but in no case will be less than listed in Products and Materials without permission from the Project Manager. Additions, Alterations, and Repairs will extend insulation the full length of the project scope as required by new construction.

All insulation must have composite (insulation jacket and adhesive used to adhere the jacket to the insulation) Fire and Smoke Hazard ratings as tested under procedure ASTM E-84, NFPA 225 and UL 723 not exceeding a Flame Spread of 25 and a Smoke Development of 5.

All pipe insulation must be continuous through walls, partitions, ceiling openings and sleeves. Where pipes pass through fire-rated floors, walls, or partitions, the use of a UL approved system for through penetrations is required. The annular space around the pipes must be packed with mineral wool and sealed at each exposed edge to maintain the rating of the system.

Insulation on all cold surfaces must be applied with a continuous, unbroken vapor seal. Specify that hangers supporting insulated piping be sized to fit over the insulation or if anchors are secured directly to cold surfaces they must be adequately insulated and vapor sealed to prevent condensation.

22 11 00 Facility Water Distribution

Piping

Specify that all piping be neatly arranged, running parallel with primary lines of building construction, and that right-of-way must be given to piping that requires gravity sloping for drainage. All domestic water piping shall be slope for drain down. All changes in pipe direction shall be made with appropriate fittings.

All water piping shall be located in heated areas of the facility, where possible. Overhead piping shall be located below ceiling insulation to prevent freezing. Water, soil, or waste piping is not permitted on exposed parts of the building.

No pressure piping is allowed beneath the building slab.

Regulations contained in the Safe Drinking Water Act concerning lead and copper concentrations shall be complied with, including the specification and the selection of piping materials to insure this compliance.

Utility piping must enter the facility through a utility trench or areaway.

Specify that unions or flanges be provided at all connections to each piece of equipment and on both sides of valves and other in-line devices that require removal for maintenance. Specify that cast bronze adaptors be used at all copper to flanged or IPS connections.

Specify that piping passing through or under corrosive fill be protected by appropriate coatings, wrapping, or galvanized sleeves. Sleeves shall be at least two pipe sizes larger than the pipe plus insulation.

Require all rough-in plumbing to be sealed off with test plugs, caps, etc., until fixtures are ready to be installed.

Specify that all openings between pipes and pipe sleeves shall be sealed with a flexible fire retardant sealant at fire walls and where required to inhibit noise transmission.

22 13 00 Facility Sanitary Sewerage

Piping

Specify that all piping be neatly arranged, running parallel with primary lines of building construction, and that right-of-way must be given to piping that requires gravity sloping for drainage. All changes in pipe direction shall be made with appropriate fittings.

Specify that traps be installed for each fixture and floor drain, with access to the traps on upper floors.

Require all rough-in plumbing to be sealed off with test plugs, caps, etc., until fixtures are ready to be installed.

Specify that all openings between pipes and pipe sleeves shall be sealed with a flexible fire retardant sealant at fire walls and where required to inhibit noise transmission.

Specialties

Floor drains shall be provided where required by the activity within the area. Provide floor drains in all rest rooms. Floor drains shall be acid resisting, with grate with openings to restrict cigarettes, peanut hulls, etc.

22 42 00 Plumbing Fixtures

Commercial Water Closets, Urinals, and Bidets

Specify that water closets are to be wall hung with flush valve, vacuum breaker, top spud, elongated, vitreous china bowl, with white seat open front type. Water closets and seats used in apartment style residential units may differ from this – consult with the Project Manager for information concerning these installations.

Specify that urinals are to be wall hung with flush valve, vacuum breaker, and top spud. Fixture must be vitreous china. Mounting heights must comply with appropriate ADA requirements. No waterless fixtures allowed.

Specify that water closets, urinals, and bidets are to be wall hung with flush valve exposed on room side.

Commercial Lavatories and Sinks

Any wall hung lavatory must be enameled cast iron, with 8” faucet centers, 3/8” angle supplies with stops and equipped with a 1-1/4” P-trap. Countertop lavatories shall be equipped like wall hung lavatories.

Lavatory Faucets

Most new construction must use remote sensor faucets. Check with Project Manager for make and model for the facility.

22 44 00 Drinking Fountains and Water Coolers

Drinking Fountains

It is University policy to install basic water fountains instead of electric water coolers. No hot water dispensers shall be included in the water fountain. Specify that the drinking fountains to be wall mounted. Location and height must comply with all applicable ADA requirements.

PRODUCTS AND MATERIALS

DIVISION 22 – PLUMBING

Back Flow Preventer

  • Domestic Water: Watts
  • Fire Protection: Ames

Carriers

  • Water Closets: Zurn Series Z-1025, Z-1206, or Z-1208 with cantilevered supports
  • Urinals: Zurn Series Z-1221 with cantilevered supports

Clean-outs

  • Smith, Zurn, Josam, Wade

Domestic Hot Water Heaters

  • Leslie Constant Temp steam water heater

Domestic Water Piping

  • 1” thru 3” – Copper Type L
  • > 3” – Carbon steel, Schedule 40

Drinking Fountains

  • Oasis, Halsey Taylor, Elkay – see Division about non-electric models

Emergency Shower and Eyewash

  • Encon Model #01050216 combination eye and safety shower, and universal emergency sign

Fittings for Copper Pipe

  • Viega ProPress compression fittings ½” – 4”;
  • Wrought copper, solder joint type, conforming to ANSI B16.22

Hangers and Support Devices

  • Grinnell, Unistrut, Fee & Mason, Elcene, Kindorf, Mueller, Auto-Grip

Hose Bibcocks

  • Interior: Kohler 1-8980 Wall Hydrant, ¾” brass, with wheel handle, to fit standard garden hose.
  • Exterior: Watts No. NFB
  • On Chrome faucets: Chrome plated Watts, Nidel, or Febco

Insulation

  • Domestic Hot Water Piping: 1” fiberglass
  • Domestic Cold Water Piping: ½” fiberglass
  • Soil and Waste Lines (above ceiling): ½” fiberglass or 1” foamed plastic

Lavatory Faucets

  • Remote sensor type
  • T & S Model 5Ef-1D-DS
  • Sloan Optima ETF-80

Nipples

  • Brass when used with copper piping

Pressure Gauges

  • Ashcroft

Service Sinks

  • Kohler Model K-6718, with Kohler Model K-8907 faucet

Shock Absorbers

  • Josam 1480/1481, Watts or Zurn

Shower Faucet

  • Kohler Coralais, Moen

Strainers

  • Watts

Toilet Seats

  • Benis, Beneke, Sperzel. Usually open front type, although some residential apartment style housing may use closed front models – consult with Project Manager.

Trim

  • Kohler, Chicago Faucet, T & S Brass, Crane, Eljer, American Standard

Unions

  • Copper to Steel: Insulating dielectric
  • Copper to Copper: 200 lbs. SWP, brass ground joint
  • Steel to Steel: 250 lbs. SWP, malleable iron with brass iron seat

Vacuum Breakers

Domestic Water: Watts

Fire protection: Ames

Valves

  • Crane, Walworth, Milwaukee, or Nibco, all with rising stems, rated for no less that 125 psi, non-shock, cold water working pressure
    • < or = 2”: Bronze body, bronze stem, inside screw, either screwed or soldered connection
    • > 2-1/2”: O.S. & Y., iron body, bronze trim, bronze stem, with flanged connection

Waste & Vent Piping

  • Above slab: PVC, Schedule 40, cast iron or copper
  • Below slab: PVC Schedule 40 or ductile iron - depending of location and use

Water Meters

  • Badger turbine with plate strainer (No data connectivity)