1-1/4" Brass Circulator Flange Ball Valve, with Drain

1-1/4" Brass Circulator Flange with Integrated Ball Valve – Durable Isolation for Hydronic Applications

The 1-1/4" Brass Circulator Flange Ball Valve is a precision-engineered component designed for isolating circulator pumps in hydronic heating systems. With its forged brass construction and integrated drain, this valve-flange combo reduces installation time, eliminates unnecessary fittings, and ensures a secure, high-performance connection.

Optimized for System Control and Serviceability

This product combines six components into a single unit, simplifying installation and minimizing leak points. The full-port valve allows unobstructed flow, while the integrated hose drain and conical inlet promote efficient maintenance and system balance. It’s designed to handle high-pressure, high-temperature environments in both residential and light commercial heating systems.

Key Features

• Forged Brass Body – Delivers long-term durability in pressurized, closed-loop systems.
• Full-Port Ball Valve – Maintains unrestricted flow to optimize pump and system performance.
• One-Piece Uni-Body Design – Reduces potential leak paths and accelerates installation.
• Blowout-Proof Stem – Enhances operational safety during pressure fluctuations or system servicing.
• Conical Inlet Design – Improves fluid flow by minimizing turbulence.
• Hi-Flow Drain Port – Allows for quick and controlled draining during maintenance procedures.
• Adjustable Packing Gland – Ensures reliable sealing and long-term serviceability in the field.

Technical Specifications

• Size: 1-1/4 inch
• End Connections: IPS x Flange
• Port Style: Full port
• Pressure Rating: 600 PSI WOG (non-shock)
• Temperature Range: Up to 250°F
• Seal Material: PTFE seat and stem seal
• Warranty: Manufacturer’s limited lifetime

Installation Notes

This valve is intended for use with standard 2-bolt circulator pumps. Proper torque and sealing techniques should be followed to ensure a leak-free installation. A professional installer should confirm compatibility with system specifications and local code requirements. The integrated design significantly reduces time spent aligning and sealing separate fittings.

Contractor-Focused Performance

Built for jobsite efficiency, this flange valve is ideal for professionals looking to streamline pump isolation tasks without compromising on flow or durability. Its rugged design, precision machining, and thoughtful features make it a dependable choice for heating system builds or service upgrades.