15401.doc

96-620

00-32 07-733 07-743

SECTION 15401 - DOMESTIC WATER SYSTEM AND NON-POTABLE WATER SYSTEM

PART 1 GENERAL

1.1

WORK INCLUDED

A.

This section governs the materials and installation of the domestic and industrial hot and cold water systems.

1.2

SUBMITTAL DATA

A.

See SECTION 15000 for general submittal requirements.

B.

Provide submittal data for any materials or equipment specified in this Section as listed on the Submittal Schedule (see SECTION 15000) and any special or additional data as requested by the Contracting Officer.

C.

Submit complete manufacturer's literature, O&M Manuals and installation instructions for water heaters, pumps, heat trace cable and other equipment so noted. Shop drawings on pipe, fittings, flues, etc., are not required.

1.3

BACKFLOW PREVENTION

A.

Provide anti-siphon and backflow prevention devices on any equipment capable of backflow into the domestic water system. This includes faucets with hose threads and equipment with any supply pipe opening below the water line of the fixture. If not specified or noted on the drawings, such devices to be as approved by the State Board of Health.

PART 2 PRODUCTS

2.1

PIPING

A.

Interior Cold and Hot Water Pipe

1.

Type K hard temper copper pipe with solder joint fittings.

2.

Solder shall be 95/5 tin/antimony composition. Self-fluxing solder shall not be used.

2.2

SHOCK ARRESTORS

A.

Arrestors shall be Shoktrol stainless steel bellows type water hammer arrestor or approved equal, Plumbing and Drainage Institute (PDI) size ‘B’. See plans or description hereinafter for locations.

PART 3 EXECUTION

3.1

PIPE

A.

Slope all piping for proper air relief and drainage.

B.

Make adequate provisions for pipe expansion. Anchor, block and brace pipe to prevent movement from water surges and hammer.

C.

Install a shock arrestor on each cold water supply to each autoclave. Arrestors shall be PDI size ‘B.’

D.

Cleaning

1.

Flush system to the satisfaction of the project officer.

2.

Disinfect any new or affected domestic water supply piping. After disinfecting, flush chlorine residue out of the system and fill with fresh water.

E.

Testing

1.

Test piping system before connecting to existing systems, before applying insulation and before concealing.

2.

Items not designed to take test pressures must be isolated from the line during testing.

3.

Test the system by applying a hydrostatic pressure of 100 psi held for 1/2 hour without any drop in pressure or other indication of leakage.

4.

Leaks shall be repaired and the test repeated until all systems prove tight.

END OF SECTION 15401

PACKAGE M OUTBUILDING RENOVATION NIH-NIAID RML HAMILTON, MT

DOMESTIC WATER SYSTEM & NON-POTABLE 15401-2

RML AUTOCLAVE REPLACEMENT ( NIH-NIAID RML ( HAMILTON, MT

DOMESTIC WATER SYSTEM AND NON-POTABLE WATER SYSTEM 15401-2