SECTION STANDPIPE AND HOSE SYSTEMS

Transcription

1 SECTION STANDPIPE AND HOSE SYSTEMS PART 1 GENERAL 1.01 SUMMARY A. Section Includes: A complete fire protection standpipe system including necessary accessories as indicated on Construction Documents, specified in this section, and as required by NFPA 14. B. Related Sections: Firestopping and Fire and Smoke Barrier Caulking Fire Protection Fire Pump and Controls Automatic Sprinkler Systems Fire Alarm and Detection Systems REFERENCES A. American Society for Testing and Materials (ASTM): 1. A53-96 Specification for Pipe, Steel, Black and Hot- Dipped, Zinc-Coated, Welded and Seamless SUBMITTALS A. Submit properly identified manufacturer's literature before starting work. B. Submit Shop Drawings on the following: 1. Valves and appurtenances: Catalog cuts 2. Pipe hangers and supports: Catalog cuts 3. Piping: Manufacturer's name and mill reports C. Detailed drawings of proposed departures due to actual field conditions or other causes shall be submitted to the A/E QUALITY ASSURANCE Project No. SPECIFICATION GUIDELINES

2 A. Fire protection equipment and devices shall be listed by Underwriters Laboratories for service intended. Equipment shall be installed in conformance with standards of National Fire Protection Association (NFPA) and Factory Mutual (FM). B. Electrical installation shall comply with the National Electrical Code (NEC) PROJECT CONDITIONS A. Coordination of Drawings: Because of small scale of Construction Documents, it is not possible to indicate all required offsets, fittings and accessories. Contractor shall carefully investigate structure and all other trades involved including finish conditions affecting all his work and shall arrange such work accordingly, furnishing such fittings, valves, and accessories as may be required to meet such conditions, at no additional cost to the Board. PART 2 PRODUCTS 2.01 MATERIALS A. Piping: ASTM A53 seamless. Schedule 40 threaded black steel pipe. B. Fittings: 1. Threaded malleable iron or screwed banded cast iron. ANSI B16.4 and B Inches and Larger: Cast iron or steel flanged fittings, ANSI B16.5; Victualic style 77 couplings with Grade H gaskets. 3. Welded Fittings: ANSI B C. Valves and Appurtenances: 1. Gate Valves: a. 2-1/2" and larger Crane #467, Stockham G-634; or Jenkins 825-A. UL listed, flanged faced, outside screw and yoke, ferro-steel body and bonnet and Project No. SPECIFICATION GUIDELINES

3 bronze fitted, 175 WWP Class. b. 2 Inches and Smaller: OS & Y threaded bronze, rising step 175 WWP Class; Walworth 13, Stockham B- 133, Jenkins Check Valves: a. 2-1/2" and Larger: Crane #375, Stockham G939 or Jenkins 629. UL approved ferro steel body with bronze or iron disc and seat, 175 WWP Class. b. 2 Inches and Smaller: Threaded bronze swing type, 175 WWP Class; Walworth 406, Stockham B319, Jenkins 92A. c. Silent Type: Flanged cast iron or steel body, bronze trim, double center guided spring, 175 psi wog. 1) 2 Inches and Smaller: Threaded end; Mueller 203-AP, Williams Gauge Co. 2) 2-1/2" and Larger: Flanged end; Mueller 105-AP, Williams Gauge Co. 3. Globe Valves: Bronze body and disc, screwed bonnet, 200 psi wog, threaded ends. Stockham No.B-16, Crane No.1, Jenkins No Hose Valves and Racks: Potter Roemer Series 1200 with 2-1/2" valve, enamel rack, 2-1/2" x 1-1/2" reducing coupling, 1-1/2" linen hose and brass fog nozzle. 5. Post Indicator Valves: Iron body, bronze mounted, flanged, non-rising stem, solid wedge disc with vertical indicator post. Stockham valve No.G with G95 indicator or Kennedy Fig.701 valve with Fig.541 indicator. 6. Siamese Connection: Potter-Roemer or accepted equivalent No.5763D cast brass free standing plugs and chains, polished chrome plated, 6 inches x 2-1/2" x 2-1/2". Stamp "Fire Sprinklers". 7. Roof Manifolds: Roof type, Potter-Roemer or accepted equivalent Series 5875, angle inlet, cast brass, twoway. Use Potter-Roemer Series 4065, cast brass, 2-1/2" valves with cap and chains. Provide salt-air resistant gage at top of riser. D. Hangers and Supports: Project No. SPECIFICATION GUIDELINES

4 1. Provide adjustable hangers as required for proper support of pipelines, according to NFPA 13. Hangers shall allow for expansion and contraction of pipelines. Hangers shall be wrought iron clevis type. 2. Piping supported from concrete slabs: Use hangers attached to rods suspended from concrete inserts. Powder actuated fasteners and devices are not allowed. "Redhead" self-drilling concrete expansion anchors are acceptable. 3. Single Pipe Runs: Support with adjustable swivel ring hangers. 4. Piping Supported from Walls or Columns: Use welded steel brackets, and adjustable swivel ring hanger. 5. Piping supported from steel structure: a. Extension C-clamp - Fig.83 b. Bar joist clip - Fig Standpipes supported from walls: Wrought strap - Fig Size of Pipe Hanging Rods Rod Diameter Up to 2 inch size pipe 3/8" 2-1/2" to 3-1/2" size pipe 1/2" 4 inch to 8 inch size pipe 3/4" E. Hose Cabinet: Furnish and install Allenco Hozeguard or accepted equivalent Hose Cabinet Model No.7169W having 12 gage door and trim, 16 gage tub, Style "D" steel door and trim. Cabinet equipped with 2-1/2 inch valve, 100 feet of unlined linen hose and couplings. Adjustable spray shut-off nozzle No Add pressure reducing valve when pressure exceeds 100 psi. For extinguisher in cabinet, see extinguisher specification, Section F. Fire Department Valve Cabinet: Allenco or accepted equivalent 282 series, 16 gage steel body and 20 gage door of hollow welded construction. Semi-concealed hinge and semi-recessed cam action latch. Baked white enameled finish inside with white prime coat outside. Cabinet capable of accommodating 2-1/2" with 1-1/2" capped reducer chained valve and 1 fire extinguisher. G. Joint Compound: White Tite Seal Project No. SPECIFICATION GUIDELINES

5 H. Materials installed in fire standpipe system shall be suitable for pressures and temperatures encountered. Installation shall be as required by NFPA 14 and as specified. PART 3 EXECUTION 3.01 INSTALLATION A. Standpipe System: 1. Cutting and Repairing: The work shall be carefully laid out in advance, and no excessive cutting of construction will be allowed. Damage to buildings, piping, wiring, or equipment because of cutting for installation shall be repaired by mechanics skilled in the trade involved at no additional expense to the Board. 2. Protection to Materials and Equipment: Pipe openings shall be closed with caps or plugs during installation. Fixtures and equipment shall be tightly covered and protected against dirt, water and chemical or mechanical injury. Upon completion of work, materials and equipment shall be thoroughly cleaned, adjusted and operated. B. Piping Joints and Methods of Connection: Steel threaded pipe after cutting and before threading: Ream pipe and remove burrs. Make screw joints of lines absolutely tight with joint compound brush applied to male threads only. After installation, exposed threads shall be painted as specified in Section Painting. C. Escutcheons: Fit and firmly secure escutcheons to pipes passing through finished floors, ceilings and walls, escutcheons of sufficient outside diameter to cover sleeved openings and set in fire retardant mastic. D. Piping: 1. Run piping enclosed where possible in wall chases, recesses, pipe shafts, wall partitions, and ceilings where provided. 2. Use reducing fittings for changes in pipe size. Project No. SPECIFICATION GUIDELINES

6 Bushings are not allowed. 3. Use extra heavy pipe for nipples where unthreaded portion is less than 1-1/2". Close nipples are not acceptable; use saddle nipples. E. Joints: 1. Make joints in screwed piping with acceptable compound on male threads only. Do not use lamp wick in joints. Threads shall be perfect, clean cut and of exactly proper length. Pipe shall be properly reamed after cutting and threading. 2. Make flanged joints with full face rubber gasket, or stainless steel. F. Hangers and Supports: 1. Properly support piping by accepted type hangers and supports: a. To secure piping in place. b. To prevent vibration. c. Of ample size to carry pipe. 2. Chain, straps, perforated bar, or wire hangers are not allowed. 3. Provide necessary supplemental steel for proper support or attachment of hangers. G. Sleeves: Provide sleeves large enough to accommodate pipes passing through floors, ceilings, walls, or partitions. 1. Penetrations by fire protection water lines through fire rated floors and walls shall be installed and firestopped using UL classified through penetration firestopping and fire and smoke barrier caulking as specified in Section 07270, Firestopping and Fire and Smoke Barrier Caulking. 2. The fire rating of the firestopping caulking shall be equivalent to or greater than the fire rating of the floor or wall penetrated. 3. Install firestopping and caulking according to with manufacturer's instructions. Project No. SPECIFICATION GUIDELINES

7 END OF SECTION Project No. SPECIFICATION GUIDELINES