15420 - Drainage and Vent Systems and Equipment-26July2011.pdf

KRSM: 062067, 062068, 062069, 072070 B-2005, B-2013, B-2024 Section 15420 Drain & vent sys.

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SECTION 15420 - DRAINAGE AND VENT SYSTEMS AND EQUIPMENT

PART I - GENERAL

1.01 RELATED DOCUMENTS:

A. Drawings and General provisions of Contract, including General and Supplementary Conditions and Division-1 Specification sections, apply to work of this section.

1.02 SUMMARY:

A. This Section specifies building sanitary and vent, storm drainage, including drains and drainage specialties.

B. Remove all existing waste, drain and vent systems rendered obsolete by new work. See

Section 15005 - Demolition.

C. Related Sections:

1. Separate sections in Division 2 specify storm sewage systems, sanitary sewage systems and trenching and backfilling. Provide a complete transition between work components.

2. Separate sections in Division 7 specify flashing and sheet metal and joint sealers.

3. Division 15 Basic Mechanical Requirements section applies to the work of this section.

4. Separate sections of Division 15 specify Basic Piping Materials and Methods, Hangers and Supports, Expansion Compensation, piping system identification materials and requirements, pipe insulation, and plumbing equipment.

1.03 QUALITY ASSURANCE:

A. Manufacturer's Qualifications:

1. Firms regularly engaged in the manufacture of plumbing piping products and equipment of types, materials and sizes required, whose products have been in service for not less than five years.

B. Installer's Qualifications:

1. Firm with at least three years history of successful experience on projects of similar nature.

2. Licensed as a firm in the Contractor state of origin.

3. Have a publicly registered bonding capacity of sufficient amount to cover this work and all other work in progress by the Contractor.

4. Employ workmen on the project who carry state licenses as journeyman or apprentice pipe fitters with additional certification for welders.

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1.04 SUBMITTALS:

A. Product Data: Submit manufacturers technical literature indicating source, brand, type, model, performance characteristics, installation instructions, etc. Color chart for finished surfaces and fixtures.

B. Record Drawings: See Section 15000.

C. Operation And Maintenance Information: Provide information for all equipment including a comprehensive system operating description. See Section 15000.

1.05 REFERENCES:

A. Codes and Standards: Comply with applicable sections, follow recommended practices.

1. International Plumbing Code

2. International Mechanical Code

3. International Building Code

4. ASHRAE/ASPE Handbooks

5. ANSI A-117

1.06 SEQUENCING AND SCHEDULING:

A. Coordinate the installation of roof/deck penetrations.

B. Coordinate flashing materials installation of roofing, waterproofing, and adjoining substrate work.

C. Coordinate the installation of drains in poured-in-place concrete slabs, to include proper drain elevations, installation of flashing, and slope of slab to drains.

D. Coordinate with installation of sanitary and storm sewer systems as necessary to interface building drains with drainage piping systems.

PART II - PRODUCTS

2.01 WASTE, DRAIN AND VENT SYSTEMS:

A. Sanitary Soil Drain, Waste and Vent Piping: (Below Grade)

1. Piping: To conform to the requirements of CISPI Standard 301, ASTM A-888 or ASTM A-74 and shall be cast iron soil pipe and fittings supplied by AB&I, Charlotte Pipe or Tyler Pipe.

2. Joints for Hubless Pipe: Hubless pipe and fittings joints shall conform to the requirements of ASTM Standard C-564 and Factory Mutual Standard 1680 and shall be heavy duty type 304 stainless steel full shielded couplings having 4 sealing clamps for pipe sizes 1 ½” thru 4" and 6 sealing clamps for pipe sizes 5" thru 15" as supplied by AB&I, Husky, Charlotte Pipe or Tyler.

3. Joints for Hub and Spigot Pipe: Hub and Spigot pipe and fittings joints shall be installed with compression gaskets conforming to the requirements of ASTM Standard C-564 as supplied by Charlotte Pipe or Tyler Pipe.

B. Sanitary Soil Drain, Waste and Vent Piping: (Above Grade Only)

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1. Piping: To conform to the requirements of CISPI Standard 301, ASTM A-888 or

ASTM A-74 and shall be cast iron soil pipe and fittings as supplied by AB&I, Charlotte Pipe or Tyler Pipe.

2. Joints for Hubless Pipe: Hubless pipe and fittings joints shall conform to the requirements of CISPI Standard 310, ASTM Standard C-564 and local code requirements as supplied by AB&I, Husky, Charlotte Pipe or Tyler.

3. Joints for Hub and Spigot Pipe: Hub and Spigot pipe and fittings joints shall be installed with compression gaskets conforming to the requirements of ASTM Standard C-564 as supplied by Charlotte Pipe or Tyler Pipe.

4. Schedule 40 galvanized steel pipe with drainage pattern cast iron screwed fittings

2.02 ACID WASTE AND VENT SYSTEM:

A. Extent of Work: Provide complete acid resistant waste and vent systems as indicated on drawings starting from fixtures and points of discharge through traps, vents for all up through roof, drain piping for all to point of connection to existing stubbed waste line.

Work includes installation of fixtures provided by Division 15 and installation (rough in and connect) for laboratory fixtures, devices and equipment furnished by other sections of these specifications.

B. Acid Resistant Waste and Vent Piping:

1. Suitable for installation in return air plenums, in full compliance with IBC, and

NFPA for fire and smoke ratings.

2. Ferrous piping or other fire rated material at all penetrations of fire rated construction, all penetrations sleeved and firesafed.

3. Hangers, fittings, gaskets, joining materials -- all compatible with material used.

4. P-traps at fixtures, laboratory equipment, etc., of acid resistant materials to match piping system.

5. General waste and vent piping of:

a. Fire retardant polypropylene with mechanical or heat fused joints, by AFulseseal@ Orion, Enfield, GSR or Zurn.

Above or below ground Ferrous pipe at fire walls, or listed fire stop assembly.

b. High silicon acid resist cast iron by Duriron.

Above or below ground

Install each and all in accordance with code provisions and manufacturer=s installation instructions. Piping installed in plenum space(s) shall be rated for such or provided with a fire wrap to create rated assembly.

2.03 EQUIPMENT AND SYSTEM VENTS AND DRAINS:

A. Piping:

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1. Piping on closed side of system to match primary system served.

2. Open vent and drain piping of Schedule 40 galvanized steel or Type K or L copper.

B. Valves: Provide valves appropriate for duty.

1. Locate air vent valves accessibly mounted on wall, 5'-0" above floor, extended to drain.

C. Installation Notes:

1. Slope all drains at 1/4" per foot or more.

2. Provide complete condensate drain systems for all air handling units, etc., for all equipment which has a need for such service.

Terminate such drain systems near floor drains, floor sinks or other authorized point of discharge.

2.04 DRAINAGE PIPING SPECIALTIES:

A. VENT FLASHING AND TERMINATION:

1. Vent pipes penetrating the roof shall be flashed and made watertight at the roof with sheet flashing. Flashing shall weigh at least 6 pounds per square foot, shall be square and shall be turned up around the pipe and into the top of the pipe.

Vent pipes shall extend at least 12" above roof.

2. Vent pipes extending through the sidewall shall be made watertight at the wall penetration, vent pipes shall be flush with wall. Provide vent cap at all vents.

Polished nickel bronze, perforated cover plate. Size as indicated on drawings.

Approved manufacturers: Smith Model 9005, or Josam, Zurn, Wade.

B. TRAPS: Equip each fixture and piece of equipment connecting to the drainage system with a trap. Place each trap as near to the fixture as possible.

2.05 Cleanouts:

A. (WCO) Finished Walls

1. Cleanout tee, material to match acid waste piping system, gas and watertight ABS tapered thread plug, and round, vandal-proof stainless steel secured wall access cover with stainless steel securing screw. Size to match pipe size, except pipe larger than 4" shall be required to have a 4" minimum cleanout tee and cover.

2. Approved Manufacturers:

a. Orion

b. Enfield

c. GSR

d. Zurn

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PART III - EXECUTION

3.01 EXAMINATION:

A. Verify all dimensions by field measurements. Verify that all drainage and vent piping and specialties may be installed in accordance with pertinent codes and regulations, the original design, and the referenced standards.

B. Verify all existing grades, inverts, utilities, obstacles, and topographical conditions prior to installations.

C. Examine rough-in requirements for plumbing fixtures and other equipment having drain connections to verify actual locations of piping connections prior to installation.

D. Examine walls, floors, roof, and plumbing chases for suitable conditions where piping and specialties are to be installed.

E. Do not proceed until unsatisfactory conditions have been corrected.

3.02 JOINING PIPES AND FITTINGS:

A. Copper Tubing: Solder joints in accordance with the procedures specified in ANSI B9.1.

B. Acid Waste Pipe: Make joints in accordance with the recommendations of the manufacturer.

3.03 INSTALLATION:

A. Refer to the separate Division 15 section: Basic Piping Materials and Methods, for general piping installation instructions.

B. Install supports and anchors in accordance with Division-15 Basic Mechanical Materials and Methods section "Supports and Anchors".

C. General Locations and Arrangements: Drawings (plans, schematics, and diagrams) indicate the general location and arrangement of the piping systems. Location and arrangement of piping layout take into account many design considerations. So far as practical, install piping as indicated.

D. Make changes in direction for drainage and vent piping using appropriate 45-degree wyes, half-wyes, or long sweep quarter, sixth, eighth, or sixteenth bends. Sanitary tees or short quarter bends may be used on vertical stacks of drainage lines where the change in direction of flow is from horizontal to vertical, except use long-turn tees where two fixtures are installed back to back and have a common drain. Straight tees, elbows, and crosses may be used on vent lines. Do not make a change in direction of flow greater than 90 degrees. Where different sizes of drainage pipes and fittings are connected, use proper size, standard increasers and reducers. Reduction of the size of drainage piping in the direction of flow is prohibited.

E. Install underground building drains to conform with the plumbing code, and in accordance with the Cast Iron Soil Pipe Institute Engineering Manual. Lay underground building drains beginning at low point of systems, true to grades and alignment indicated with unbroken continuity of invert. Place bell ends of piping facing upstream. Install required gaskets in accordance with manufacturer's recommendations for use of lubricants, cements, and other special installation requirements. Maintain swab or drag in line and

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pull past each joint as it is completed.

F. Install building drain pitched down at minimum slope of 1/4" per foot (2 percent) for piping 3" and smaller, and 1/8" per foot (1 percent) for piping 4" and larger.

3.04 INSTALLATION OF PIPING SPECIALTIES:

A. Install flexible connection joints on roof drains.

B. Above Ground Cleanouts: Install in above ground piping and building drain piping as indicated, and:

1. as required by plumbing code;

2. each change in direction of piping greater than 45 degrees;

3. at minimum intervals of 50' for piping 4" and smaller and 100' for larger piping;

4. at base of each vertical soil or waste stack.

C. Cleanout Covers: Install wall cleanout cover for concealed piping, types as indicated.

3.05 CONNECTIONS:

A. Piping Runouts to Fixtures: Provide drainage and vent piping runouts to plumbing fixtures and drains, with approved trap, of sizes indicated; but in no case smaller than required by the plumbing code.

B. Locate piping runouts as close as possible to bottom of floor slab supporting fixtures or drains.

3.06 FIELD QUALITY CONTROL:

A. Inspections:

1. Do not enclose or cover drainage and vent piping system or put into operation until it has been inspected and approved by the authority having jurisdiction.

2. During the progress of the installation, notify the plumbing official having jurisdiction, at least 24 hours prior to the time such inspection must be made.

Perform tests specified below in the presence of the plumbing official.

3. Rough-in Inspection: Arrange for inspection of the piping system before concealed or closed-in after system is roughed-in, and prior to setting fixtures.

4. Final Inspection: Arrange for a final inspection by the plumbing official to observe the tests specified below and to insure compliance with the requirements of the plumbing code.

5. Re-inspections: Whenever the piping system fails to pass the test or inspection, make the required corrections, and arrange for re-inspected by the plumbing official.

6. Reports: Prepare inspection reports, signed by the plumbing official.

B. Piping System Test:

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1. Test for leaks and defects all new drainage and vent piping systems and parts of existing systems, which have been altered, extended or repaired. If testing is performed in segments, submit a separate report for each test, complete with a diagram of the portion of the system tested.

2. Leave uncovered and unconcealed all new, altered, extended, or replaced drainage and vent piping until it has been tested and approved. Expose all such work for testing that has been covered or concealed before it has been tested and approved.

3. Repair all leaks and defects using new materials and retest system or portion thereof until satisfactory results are obtained.

4. Prepare reports for all tests and required corrective action.

3.07 ADJUSTING AND CLEANING:

A. Clean interior of piping. Remove dirt and debris as work progresses.

B. Clean drain strainers, domes, and traps. Remove dirt and debris.

3.08 PROTECTION:

A. Protect drains during remainder of construction period, to avoid clogging with dirt and debris, and to prevent damage from traffic and construction work.

B. Place plugs in ends of uncompleted piping at end of day or whenever work stops.

END OF SECTION 15420