Auburn University
Auburn University
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Auburn University
 


D20 Plumbing

  1. Piping


    1. Buried Piping


      1. All buried piping shall be bedded in a minimum of 6” of sand and have a minimum backfill of 12” of sand above top of pipe.


      2. Provide 18”-24” clear between pipes.


    2. Building Piping


      1. Locate main piping runs above corridors when possible.


      2. Provide isolation valves to shut down each floor or sections of a floor.


    3. Domestic Water Piping


      1. Non-Potable Water:  Copper type ‘L’, hard drawn, with soldered points.


      2. Potable Water:  Copper type ‘L’, hard drawn, with soldered joints.


    4. Sanitary Waste and Vent Piping


      1. Waste and Vent Piping above grade:  Cast iron no-hub with 4 band mechanical clamps.


      2. Waste and Vent Piping below grade:  Cast iron hub and spigot.


      3. Indirect Drains:  Copper type ‘M’ for 1” and smaller, type ‘DWV’ for 1 ¼” and larger with sweat joints.


    5. Storm Drainage Piping Above/Below Grade


      1. Above Grade:  Cast iron no-hub with 4 band mechanical clamps.


      2. Below Grade:  Cast iron hub and spigot.


    6. Backflow Preventers


      1. Domestic and Fire water:  Install in mechanical room.  If reduced pressure type, provide drain funnel and pipe to floor drain.


      2. Irrigation water:  Install in pit in yard with separate water meter.


    7. Piping Insulation


      1. End joints of pipe insulation shall be sealed to pipe.


      2. A pre-installation conference shall be specified to ensure that proper techniques are followed.


      3. Insulation shall be as listed below for service piping:


        • Domestic Water Piping:  Fiberglass


        • Hot Water Piping:  Fiberglass


    8. Floor Drains


      1. Provide floor drains in toilet rooms.


      2. Provide trap primers for all floor drains and floor sinks.


    9. Fuel Piping


      1. Liquid Petroleum (LP) Gas Piping:


        • Above grade: Black steel, schedule 40


        • Below grade:  High density polyethylene (HDPE) with electro/heat fusion joints.  Pipe shall be installed per 49CFR Part 192 by a certified installer.


      2. Natural Gas and LP Gas Specialties:


        • Gas Meters:  Auburn University provides gas meter for installation by contractor.


      3. Natural Gas Piping:


        • Above grade: Black steel, schedule 40


        • Below grade:  High density polyethylene (HDPE) with electro/heat fusion joints.  Pipe shall be installed per 49CFR Part 192, by a certified installer.


    10. Process Air and Gas Piping


      1. Air Compressors:  Duplex type, 100% capacity each compressor, with ASME stamped receiver.


      2. Compressed Air Piping:  Copper tubing type ‘K’ or ‘L’, less than ½” soft annealed, ½” –1.5” hard drawn, greater than 1.5” schedule 40 black steel.


      3. Gas Piping:


        • Oxygen:  Copper tubing type ‘K’ or ‘L’, less than ½” soft annealed, ½” –1.5” hard drawn.


        • Argon:  Copper tubing type ‘K’ or ‘L’, less than ½” soft annealed, ½” –1.5” hard drawn.


        • Carbon Dioxide:  Copper tubing type ‘K’ or ‘L’, less than ½” soft annealed, ½” –1.5” hard drawn.


        • Helium:  Copper tubing type ‘K’ or ‘L’, less than ½” soft annealed, ½” –1.5” hard drawn.


        • Nitrogen:  Copper tubing type ‘K’ or ‘L’, less than ½” soft annealed, ½” –1.5” hard drawn.


        • Nitrous Oxide:  Copper tubing type ‘K’ or ‘L’, less than ½” soft annealed, ½” –1.5” hard drawn.


      4. Vacuum Pumps:  Duplex type, 100% capacity each pump.


      5. Vacuum Piping:  Copper tubing type ‘K’ or ‘L’, less than ½” soft annealed, ½” –1.5” hard drawn.


      6. Medical Gasses:  Installation shall be in accordance with NFPA 99.


    11. Process Water and Waste Piping


      1. Deionized Water Piping:  Polyvinylidene fluoride (pvdf) kynar resin SDR 11-21 with thermal fusion joints.


      2. Distilled Water Piping:  Perfluoroalkloxy pipe (PFA) Teflon schedule 40 or 80 with thermal fusion, mechanical, or threaded joints.


      3. Lab Acid Waste and Vent Piping:  High silicon (14%) cast iron, or glass with mechanical joints, or polypropylene with mechanical joints above grade and thermal fusion joints below grade.


      4. Reverse Osmosis Water Piping:  Polyvinylidene fluoride (pvdf) kynar resin SDR 11-21 with thermal fusion joints.


    12. Provide shut-off valves for all services into laboratory spaces to allow for single lab to be isolated.


    13. Domestic hot water shall be a recirculating type system.


    14. The designer shall minimize quantity of dielectric unions.  When used, unions shall be located in accessible locations for ease of maintenance.  Engineer shall provide a drawing indicating location of all dielectric unions.  Provide ball valves on each side of union to allow for repair of union.


    15. Floor sleeves shall be cast-in-place schedule 40 steel pipe, 2” above floor, flush with bottom of slab.  Sheet metal sleeves are not acceptable.



  2. Plumbing Fixtures


    1. Water closets to be vitreous china, wall hung with chair carrier, minimum 2.25” trap-way, low flow design of 1.1 or 1.6 gallons per flush with selectable dual flush handle.


    2. Urinals to be vitreous china, wall hung with floor mounted carrier, low flow design sensor type with 1 pint per flush.


    3. Lavatories to be vitreous china, wall hung shall be provided with concealed arm carrier.


    4. Sinks to be 18 gauge stainless steel.


    5. Flush valves to be dual filtered bypass (minimum), ADA compliant handle, low flow design.


    6. Toilet seats to be solid plastic with stainless steel self sustaining check hinges.
    7. Sink and lavatory faucets to be ¼ turn ceramic disk cartridge type with wrist blade handles.


    8. P-traps to be 17 gauge with integral cleanout.


    9. Trap Wrap to be molded plastic type similar to McGuire Pro-Wrap, Truebro LavGuard.


    10. Finishes to be polished chrome.


    11. Traps shall have mechanical connection (not soldered) at wall connection to allow for removal and use as a cleanout.



  3. Plumbing Pumps


    1. Package booster pumping station to be duplex type, utilize variable speed drive pumps when applicable.


    2. Sewage ejectors to be used with prior approval only.

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