1" Threaded Straight-Angle Flow Valve Control

Bell & Gossett 107018 Straight-Angle Flow Control Valve – 1" NPT for Hydronic Zoning

The Bell & Gossett 107018 Flow Control Valve is engineered to maintain proper flow direction and prevent gravity circulation in closed-loop hydronic heating systems. With a 1" NPT threaded straight-angle configuration, it allows for streamlined installation and consistent zone control performance in residential and commercial hot water systems.

Engineered for Hydronic Zone Integrity

This flow control valve automatically closes when the circulator shuts off, preventing hot water from migrating into inactive zones due to gravity flow. It ensures that heated water only circulates to zones actively calling for heat, supporting more efficient system operation and reducing standby energy loss.

Product Highlights

• 1" Straight-Angle Body – Designed for easy alignment with system piping and space-constrained mechanical rooms.
• Automatic Operation – Internal check mechanism stops thermal siphoning when the pump is off.
• Manual Override Lever – Allows the valve to be manually opened during purging or system startup.
• Threaded Brass Body – Durable brass construction ensures corrosion resistance and longevity in hydronic systems.
• Serviceable Design – Field-serviceable components for long-term system support and easy maintenance.

Technical Specifications

• Model: Bell & Gossett 107018
• Connection: 1" NPT threaded
• Type: Straight-angle flow control valve with gravity flow prevention
• Max Pressure: 125 PSI
• Max Temperature: 250°F
• Material: Cast brass with internal stainless components

Installation Considerations

Although installation is straightforward with threaded connections, proper orientation and alignment with circulators and zone piping is essential. It’s recommended to have the valve installed by a licensed professional to ensure system compliance and avoid flow disruption. The valve includes a manual open lever, which must be correctly positioned during startup and purging.

Designed for Contractors

For Hydronic Professionals: This valve is a dependable option for maintaining control over system zoning. It installs quickly, offers clear manual override functionality, and reliably prevents unwanted flow—minimizing callbacks and maintaining zone isolation.

For System Maintenance: The internal assembly can be serviced or replaced without removing the body from the system, minimizing downtime during maintenance.

Application Use

• Closed-loop hot water heating systems
• Multi-zone hydronic applications using circulators
• Boiler-based residential or commercial systems

Make the Right Choice for Flow Control

Built for reliability and engineered with installer needs in mind, the Bell & Gossett 107018 Flow Control Valve is a smart solution for zoning applications where gravity flow needs to be controlled. Its proven design and quality materials make it a staple in professional hydronic system installations.