Duravent 0402PI B-vent Double Wall Rigid Pipe 4x24 in

Product Description

The DURAVENT 0402PI is a double-wall, air-insulated B-vent round rigid pipe section designed for venting Category I gas appliances. With a 4-inch diameter and 24-inch length, this pipe section extends vent runs in residential and light commercial gas appliance installations. The double-wall air-insulated construction maintains flue gas temperature and helps prevent condensation in the vent column. Twist-lock connections allow for secure, tool-free assembly. Licensed HVAC technicians and plumbers install this type of vent pipe when routing exhaust from gas furnaces, water heaters, or boilers to the exterior.

This pipe section is suited for use in Category I gas appliance venting systems, including natural gas furnaces, atmospheric water heaters, and similar atmospheric-draft appliances. It is typically installed indoors as part of a vertical or offset vent run. The 24-inch rigid section fits standard B-vent system configurations and works alongside elbows, tees, caps, and other DVP-series B-vent components to complete a full vent assembly.

Key Features

• Double-wall air-insulated construction maintains flue gas temperature and reduces heat transfer to surrounding materials
• 4-inch diameter x 24-inch length provides a standard section length for extending vent runs
• Twist-lock connection system allows secure, alignment-positive assembly without additional fasteners
• Round rigid pipe format maintains consistent interior diameter for predictable draft performance
• Designed for Category I gas appliance venting applications

Compatibility

Designed as an OEM-style replacement and standard component for Category I gas appliance B-vent systems using 4-inch diameter double-wall vent pipe.

Installation Notes

Installation must be performed by a qualified HVAC technician or licensed plumber in accordance with the appliance manufacturer instructions, NFPA 54, and local mechanical codes. Power down and shut off the gas supply to the appliance before servicing any vent connection. Maintain required clearances to combustibles as specified on the pipe label and in applicable code. Do not mix B-vent components from different manufacturers within the same vent system unless listed for such use.

Technical Specifications

• Diameter: 4 inches
• Length: 24 inches
• Wall Construction: Double wall, air insulated
• Pipe Shape: Round
• Pipe Type: Rigid
• Vent Category: Category I (B-Vent)
• Connection Type: Twist-lock

Standard Information

• Brand: DURAVENT
• Manufacturer Part Number: 0402PI