22Q3112 Attachment 1 - Spec Vent Duct.pdf

Vent Ducting Specifications – Attachment 1

A. Flex Tube Thermoplastic Rubber – TR-FR Medium weight co-extruded thermoplastic rubber hose with a rigid external polypropylene helix.

A.1. Ultra smooth interior to maximize efficiency of airflow A.2. Highly flexible A.3. Tight bend radius without crimping A.4. Crush resistant A.5. Moisture resistant A.6. Chemical resistant A.7. Designed for applications with wide temperature ranges A.8. Spiral co-extruded engineered construction A.9. Helix must protect against wear A.10. Fire Retardant (FR) (UL 94-V0 material compliance) A.11. Temperature Range: -60F to 275F A.12. Length: 24 feet A.13. Inside Diameter: 3”

A.13.1. Approx. Weight: .45 lbs. /ft.

A.13.2. Wall Thickness .035” A.13.3. CL Bend Radius: 4” A.13.4. Compression Ratio: 2:1 A.13.5. Negative Pressure: 22 in. / hg, A.13.6. Working Pressure: 15 PSI

A.14. Inside Diameter: 4” A.14.1. Approx. Weight: .6 lbs. /ft.

A.14.2. Wall Thickness .035” A.14.3. CL Bend Radius: 5” A.14.4. Compression Ratio: 2:1 A.14.5. Negative Pressure: 20 in. / hg, A.14.6. Working Pressure: 12 PSI

A.15. Inside Diameter: 6” A.15.1. Approx. Weight: 1 lbs. /ft.

A.15.2. Wall Thickness .035” A.15.3. CL Bend Radius: 7” A.15.4. Compression Ratio: 2:1 A.15.5. Negative Pressure: 16 in. / hg, A.15.6. Working Pressure: 10 PSI

A.16. Inside Diameter: 8” A.16.1. Approx. Weight: 1.5 lbs. /ft.

A.16.2. Wall Thickness .035” A.16.3. CL Bend Radius: 9.75” A.16.4. Compression Ratio: 2:1 A.16.5. Negative Pressure: 12 in. / hg, A.16.6. Working Pressure: 8 PSI

A.17. Color: Based on application. See Delivery Order

ALL VENT DUCT MUST BE MARKED “TR-FR” OR “EF-FR” AND SHALL BE PLACED EVERY FOOT

(12"). FONT SIZE, LETTER STYLE AND INK COLOR NOT SPECIFIED, BUT MARKING SHALL BE

PERMANENT AND CLEARLY LEGIBLE.

B. Flex Tube Environmentally Friendly – EF-FR Medium weight co-extruded polyolefin elastomer hose with a rigid external polypropylene helix.

B.1. Environmentally friendly B.2. Low outgassing (Low VOC vs. standard PVC hose) B.3. Ultra smooth interior to maximize efficiency of airflow B.4. Highly flexible B.5. Tight bend radius without crimping B.6. Spiral co-extruded engineered construction B.7. Helix must protect against wear (abrasion resistance) B.8. Moisture resistant B.9. Chemical resistant B.10. Fire retardant (FR) (UL 94-V2 material compliance) B.11. Temperature Range: -20F to 160F B.12. Length: 24 feet B.13. Inside Diameter: 8”

B.13.1. Approx. Weight: 1.5 lbs. /ft.

B.13.2. Wall Thickness .035” B.13.3. CL Bend Radius: 9.75” B.13.4. Compression Ratio: 2:1 B.13.5. Negative pressure: 12 in. / hg.

B.13.6. Working Pressure: 8 PSI

B.14. Color: Based on application. See Delivery Order

C. Flex Tube R-3 Blue – (R-3) Heavy weight PVC hose reinforced with a coated spring steel wire helix (sizes 14" I.D. & above not available with a coated wire) environmentally friendly.

C.1. Ultra smooth interior to maximize efficiency of airflow C.2. Highly flexible C.3. Tight bend radius without crimping C.4. Spiral co-extruded engineered construction C.5. Helix must protect against wear (abrasion resistance) C.6. Moisture resistant C.7. Chemical resistant C.8. Fire retardant (FR) (UL 94-V2 material compliance) C.9. Temperature Range: 20F to 160F C.10. Length: 24 feet C.11. Inside Diameter: 8”

C.11.1. Approx. Weight: .1.8 lbs. /ft.

C.11.2. Wall Thickness .45” C.11.3. CL Bend Radius: 7.7” C.11.4. Compression Ratio: 2:1 C.11.5. Negative pressure: 3 in. / hg.

C.11.6. Working Pressure: 11 PSI

C.12. Color: Blue