Duravent 0705PI B-vent Round Rigid Pipe 7x60 in Double Wall

Product Description

The DURAVENT 0705PI is a double wall air-insulated B-vent round rigid pipe section designed for use in Category I gas appliance venting systems. Measuring 7 inches in diameter and 60 inches in length, this pipe maintains flue gas temperature throughout extended vent runs by trapping an insulating air layer between its inner and outer walls. The twist-lock connection system allows for secure, repeatable assembly without additional fasteners. Licensed HVAC technicians and plumbers install this component as part of vertical or horizontal B-vent runs serving natural gas and propane appliances.

This pipe section is suited for residential and light commercial applications where Category I gas appliances require a compliant Type B vent pathway. The 60-inch length makes it well-suited for long straight runs between fittings, reducing the number of joints in a system. Typical installations include gas furnaces, boilers, water heaters, and other non-positive-pressure vented appliances. The double wall air-insulated design helps preserve the buoyancy of flue gases, supporting reliable draft performance across the full vent system.

Key Features

• 7-inch diameter by 60-inch length for extended straight vent runs
• Double wall air-insulated construction maintains flue gas temperature and draft
• Twist-lock connection system provides secure, tool-assisted assembly
• Designed for Category I gas appliance venting applications
• Round rigid pipe profile for consistent airflow and structural integrity

Compatibility

Designed as an OEM-style replacement and system component for Type B gas vent installations serving Category I natural gas and propane appliances.

Installation Notes

Installation should be performed by a licensed HVAC technician or plumber in accordance with the International Fuel Gas Code and the appliance manufacturer's venting instructions. Shut off gas supply and allow the system to cool completely before servicing or extending an existing vent run. Ensure all twist-lock joints are fully engaged and that required clearances to combustibles are maintained throughout the run. Do not use B-vent components with positive-pressure or Category III or IV appliances.

Technical Specifications

• Diameter: 7 inches
• Length: 60 inches
• Construction: Double Wall Air-Insulated
• Pipe Shape: Round
• Pipe Type: Rigid
• Vent Category: Category I (Type B)
• Connection Type: Twist-Lock

Standard Information

• Brand: DURAVENT
• Manufacturer Part Number: 0705PI