300 Murray Hill Parkway
East Rutherford, NJ 07073
- HOME
- PRODUCTS
- FLEXIBLE DUCT CONNECTOR
- TDC & TDF CORNERS
- 4-BOLT CONNECTIONS
- CLEATS & FLANGE CORNERS
- VANE & RAIL
- OPPOSED & PARALLEL BLADE DAMPER HARDWARE
- QUADRANTS AND BEARINGS
- ENGINEERED END BEARINGS
- STANDOFFS
- HEAVY DUTY DOOR HANDLES
- ACCESS DOORS
- SNAP PIPE AND FITTINGS
- SCISSOR CLIPS AND CORNER CLIPS
- CONDUIT INSERTS & INSULATION FASTENERS
- WIRE MESH AND SCREWS
- INSULATED FLEX AND FLEX TIES
- ANCHORS, DRILL BITS, AND STRUT
- STRAP HANGERS AND SLIP & DRIVE
- BEAM CLAMPS, ROD, STAPLES, BLADES AND RIVETS
- GENIE LIFTS, VERMETTE LIFTS, LADDERS AND GANG BOXES
- TOOLS
- SHRINK WRAP W/PSA
- ELGEN-TO-DURODYNE CROSS-REFERENCE
- 4-BOLT CONNECTION SPECIFICATION
- CONTACT US
- FAQ
FLEXIBLE DUCT CONNECTOR
SPECIFICATION FORM
Description:
All air duct installations for heating, cooling or ventilation are attached to mechanical equipment containing a fan or blower. Vibrations, noises and rattles resulting from operation of the fan or blower are transmitted into the metal ducts which carry the noises throughout the system. In order to isolate the vibrations and noises to the source, an air-tight flexible joint, consisting of a fabric which is attached to sheet metal on both sides, must be inserted between the equipment and the ductwork. This vibration isolator is called a “Flexible Duct Connector”.
Related NFPA 90A & 90B Standards:
2-1.2-3 Vibration isolation connectors in duct systems shall be made of an approved flame retardant fabric or shall consist of sleeve joints with packing of approved material having a flame spread rating of not over 25 and a smoke development rating of not over 50. Vibration isolation connectors constructed of fabric shall not exceed 10 inches in length.
2-1.1 Exc. No.3 Vibration isolation connectors in duct system shall be made of an approved flame-retardant fabric or shall consist of sleeve joints with packing of approved non-combustible material. Vibration isolation connectors constructed of fabric shall not exceed 10 inches in length.
| FABRIC COMPARISONS | VINLON | NEOPRENE | HYPALON | SILGUARD | TEFLON® |
|---|---|---|---|---|---|
| Continuous Temp. Range | -40 F to 265 F | -40 F to 200 F | -50 F to 300 F | -75 F to 500 F | -75 F to 500 F |
| Color | Black | Black | White | White | Gray |
| Weight Per Sq. Yd. | 22 | 32 | 24 | 8 | 8 |
| Composition | Nylon/Polyester base fabric with a Vinyl coating | Fiberglass Double Coated with Neoprene | Hypalon Coated Heavy Glass Fabric | Fiberglass impregnated with Silicone | Fiberglass coated with Teflon® |
| Tear Strength | 00/00 | 25/25 | 20/20 | 50/40 | 60/40 |
| Tensile Strength | 300/300 | 500/500 | 350/250 | 200/50 | 400/300 |
| Features | High Tear Strength, High Abrasion, Extremely Flexible, Low Smoke. | Airtight Resistance to Acids, Gasoline, and Grease. General Purpose. | Excellent Acid, Weather, U.V., Mildew and Ozone Resistance, High Abrasion. | High Temp., Very Low Smoke, Flame, Water, and Oil Resistant. | High Temp. & Acid Resistant. Best OverallFabric. |
| Codes: Notch Lock Silent Duct | ZLL SDL |
ZLN SDN |
ZLH SDH |
ZLSG SDSG |
ZLTF SDTF |
*Also available in St/St#304, St/St#316, Aluminum and PCD coated.
*Vinlon is approved by the city of L.A. (RR# 8471)
| SIZE | GAUGE |
|---|---|
| 3x3x3 | 24 or 26 |
| 4x4x4 | 24 |
| 3x6x3 | 24 |
| 4x6x4 | 24 |
| 4x10x4 | 24 |
| 1-3/4x3x1-3/4 | 28 |
| 1-3/4x6x1-3/4 | 28 |
*Stainless Steel #304 & #316 and Aluminum are in stock.
*All connector comes in 100 ft rolls, 150 ft rolls can be made
special order.
*The connector is Union made - Yellow Label.
Flexible Duct Connector
Notch Lock
Special 4 x 10 x 4 Super Wide
Silent Duct - Extra strong reinforced with rope so the fabric resists pulling out