SILVER SHEET ENTERPRISES INC. Sheet Metal * Ductwork * Rectangular * Spiral * Oval * Supply

9335 Industrial Trace 17742 Ashley Drive Alpharetta, GA 30004 Panama City Beach, FL 32413 Ph : (770) 667-5959 Ph : (850) 230 -9711 Fx : (770 667- 5999 Fx : (850) 230- 9717

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SUBMITAL DATA

JOB: JOB NO:

LOCATION: REPRESENTATIVE:

ARCHITECT: ENGINEER:

CONTRACTOR: DATE:

RECTANGULAR

SPIRAL

FLAT OVAL

SILVER SHEET ENTERPRISES, INC

Rectangular Duct and Fittings

General Information & Specification Data

Material Specifications:

A. All galvanized ductwork is fabricated by using ASTM A90, A568, A653, and A924 commercial grade lock forming G-90/G-60 materials.

B. All material and gauges fabricated per code and customer request. C. Options of stainless steel, aluminum, galvaneal and other materials are available

upon request. Ductwork Specifications:

A. Full Section (wrap around): One piece joint section with one button lock or Pittsburgh lock longitudinal seam and end treatment required for joining connectors.

B. Half Section: Two-piece joint section with two button lock or Pittsburgh lock longitudinal seams and end treatment required for joining connectors.

C. Four Piece Section: Four-piece joint section with four button lock or Pittsburgh longitudinal seams and end treatment required for joining connectors.

D. All duct is beaded on 12” centers, with first bead 6” from end for extra strength. Cross breaking is available upon request.

E. All duct is available in any length requested. Standard lengths are 5’ (59”). F. All slips and drives, nuts, bolts, gaskets, and reinforcements are included on duct

and fitting quotes. G. All duct and fittings are available lined or unlined. H. All rectangular duct is shipped unassembled (KD), unless otherwise requested. I. All rectangular fittings are shipped assembled, unless otherwise requested

Seams and Transverse Connections:

A. Button lock, available in 28 gauge through 20 gauge. B. Pittsburgh lock, available in 26 gauge through 18 gauge. C. Spot welded lock, available in 28 gauge through 16 gauge. D. Continuous welded lock, available in 20 gauge through 10 gauge. E. Slip and Drive connections available with ½” notch and open hem for drive;

customer to specify placement of Slip and Drive F. TDC (Transverse Duct Connections) is an excellent low air leakage system

wherein a flange is roll formed onto the end of the duct, creating a bolt-up connection that is more economical than traditional 4 bolt connectors.

G. 4 Bolt flange connectors are available for higher static pressure systems. H. Pressure sealant is available upon request. Consult your code or construction

manuals for sealant requirements.

Lined Ductwork:

A. Duct liner installed has been tested in accordance with the procedures set forth in NFPA-90A, by Underwriters Laboratories and the manufacturer of the duct liner material. Operating temperatures to 250º F, velocities up to 3,000 FPM. Available in thicknesses from ½” to 3”, and densities from 1 ½ to 3 pounds per cubic foot.

B. Flame retardant, water based adhesive, as well as spot welded pins, is used to adhere the duct liner to the duct wall. Approximate operating temperature for the adhesive is 30º to 160º F.

The installing contractor should select the duct system consistent with the static pressure class, applicable sealing requirements, materials involved, duct support intervals, and other provisions for proper assembly of ductwork. The precise type, size, material, and fasteners used in joint assemblies are in several instances left open to the judgment of the contractor; consult SMACNA HVAC Duct Construction Standards Manual, Uniform Mechanical Code, and/or job code requirements.

All statements, technical information, and recommendations contained herein are based on tests believed to be reliable, but

the accuracy thereof is not guaranteed.

Specifications subject to change without notice

Compaq_Owner

Typewritten Text

SILVER SHEET ENTERPRISES INC. Sheet Metal * Ductwork * Rectangular * Spiral * Oval * Supply

9335 Industrial Trace 17742 Ashley Drive Alpharetta, GA 30004 Panama City Beach, FL 32413 Ph : (770) 667-5959 Ph : (850) 230 -9711 Fx : (770 667- 5999 Fx : (850) 230- 9717

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General: Provide static pressure, quantity, type, size and connection for fittings and ductwork. All double wall sizes are inside dimension. Construction: Double wall rectangular duct and fittings to be fabricated in accordance with 2005 SMACNA "HVAC Duct Construction Standards, Metal and Flexible. Conform to the requirement in the referenced standards for metal thickness, conduits and tie rod applications and joint types. External reinforcement is to be field installed and coordinated with duct hangers Metal: Galvanized Steel of ASTM Standard A653 (formally A527) and 2005 SMACNA Standards. Fittings: Bead duct sizes that are 14" and larger, (cross-break on request), longitudinal seam shall be pittsburgh lock. Fabricate elbows, transitions, offsets, mitered elbows (turning vanes are available by request) and 90° branch connections in accordance with SMACNA 2005 standards. Ductwork: Bead duct sizes that are 14" and larger, (cross- break on request), longitudinal seam shall be pittsburgh lock. Standard TDC ductwork length is 56¼". Standard Slip and Drive ductwork length is 591/2”. Connections: Double wall ductwork and fittings are TDC flange connection.(Slips/Drives and other connections available on request). Inner Liner: Ductwork & Fittings: Perforated 3/32" holes on 3/16" stager centers with 22% open area. Ductwork that is up to or equal to 30" in width will be fabricated with 24 gauge perforated inner material, any ductwork larger than or equal to 31" in width will be fabricated using 22 gauge perforated inner material. Solid galvanized inner liner is available by request. Insulation: 1" thick liner, unless specified otherwise. Liner to be secured with adhesive and mechanical fasteners per SMACNA.