Norgas vl0375 Vent Limiter 3/8 Inches N5B Indoor

Product Description

The NORGAS vl0375 is a 3/8-inch vent limiter designed for use with the NORGAS N5B indoor gas control valve. Vent limiters are safety-critical components that restrict the flow of gas from the vent port of a gas valve, preventing excessive gas release into the surrounding area in the event of a diaphragm failure or internal valve leak. This part is installed by licensed gas technicians and plumbers working on residential or light commercial gas appliance systems. The vl0375 fits directly into the vent port of the N5B valve and provides a calibrated restriction sized at 3/8 inches to meet safe venting requirements.

The vl0375 is intended for indoor installations where N5B gas valves are in service. Typical applications include residential and light commercial heating appliances such as gas furnaces, boilers, and unit heaters equipped with NORGAS N5B controls. Indoor placement means the vent limiter must comply with applicable fuel gas code requirements for indoor venting safety, including restrictions on gas discharge volume in occupied spaces. This component is a direct-fit replacement for the vent limiter position on the N5B valve body.

Key Features

• 3/8-inch vent port size for direct installation on NORGAS N5B gas valves
• Limits gas discharge from the valve vent port in case of internal diaphragm failure
• Designed for indoor gas appliance installations
• Safety-critical component meeting fuel gas code venting requirements
• Direct OEM-style replacement for the N5B vent limiter position

Compatibility

Designed for use with the NORGAS N5B indoor gas control valve as a vent limiter replacement.

Installation Notes

Installation must be performed by a licensed gas technician or plumber in accordance with local fuel gas codes, including IFGC guidelines for indoor gas appliance venting. Shut off the gas supply and verify zero pressure at the valve before removing or installing the vent limiter. The vent limiter threads into the vent port of the N5B valve body and must be seated securely to ensure proper gas flow restriction. Do not operate the appliance with the vent port open or the limiter removed.

Technical Specifications

• Vent Port Size: 3/8 inches
• Compatible Valve: NORGAS N5B
• Installation Type: Indoor

Standard Information

• Brand: NORGAS
• Manufacturer Part Number: vl0375