Metal-fab 10159 Flexible Duct Connector 3 Inches Hvac

Product Description

The METAL-FAB 10159 is a flexible duct connector designed to provide vibration isolation and movement compensation in HVAC duct systems. Constructed with a metal-to-fabric-to-metal configuration, it uses an Excelon vinyl-coated woven nylon and polyester blend fabric flanked by galvanized steel collars. The fabric section delivers 240/220 lb tensile strength, making it well-suited for demanding commercial and residential air distribution applications. Licensed HVAC technicians and sheet metal workers install this connector to reduce blower and air handler vibration transmission into the duct system and to accommodate minor misalignment at equipment connections.

The 10159 is used on heating, cooling, and ventilation systems where a 3-inch round duct connection requires a flexible transition. The metal-to-fabric-to-metal design allows the connector to absorb vibration and thermal movement without transmitting stress to adjacent ductwork. Its mildew-resistant, water-resistant fabric construction makes it appropriate for both supply and return applications in a range of indoor air quality and comfort systems handled by commercial or residential HVAC contractors.

Key Features

• 240/220 lb tensile strength fabric resists tearing under normal duct system stress
• Excelon vinyl-coated woven nylon and polyester blend provides excellent water and mildew resistance
• Metal-to-fabric-to-metal construction allows direct connection between rigid duct sections and air-moving equipment
• Meets UL 214, SMACNA, and NFPA 701/90A/90B applicable standards for fire and flame resistance
• Black fabric finish suits typical concealed mechanical room and duct chase installations

Compatibility

Designed for use on 3-inch duct connections in heating, cooling, and ventilation systems. Suitable as an OEM-style replacement or new-installation flexible connector wherever metal-to-fabric-to-metal transitions are specified.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified sheet metal workers. Power down and lock out the air handling unit or blower before beginning work, and verify the duct system is depressurized. Secure both metal collars to adjacent duct sections using fasteners and sealant appropriate to the application per SMACNA guidelines. Do not over-compress or stretch the fabric section during installation, as distortion can reduce the connector's vibration isolation effectiveness.

Technical Specifications

• Size: 3 inches
• Type: Metal to Fabric to Metal
• Tensile Strength: 240/220 lb
• Fabric Material: Excelon Vinyl Coated Woven Nylon and Polyester Blend
• Color: Black
• Metal Material: 24 Gauge Stainless Steel
• Applicable Standards: UL 214, SMACNA, NFPA 701/90A/90B
• Used On: Heating, Cooling, Ventilation Systems

Standard Information

• Brand: METAL-FAB
• Manufacturer Part Number: 10159