1" Brass Circulator Flange with Ball Valve, Less Drain, Sweat

1" Brass Circulator Flange with Integrated Full-Port Ball Valve – Built for Hydronic System Efficiency

The 1" Brass Circulator Flange with Ball Valve is a professional-grade isolation solution for hydronic heating applications. Designed to streamline circulator pump installation and service, this forged brass assembly offers both durability and functionality in one compact, high-performance component. It eliminates the need for multiple fittings, reduces potential leak paths, and ensures secure, long-lasting connections under pressure.

Engineered for Demanding Installations

This valve-flange combo is ideal for new system installs and pump replacements. Its full-port design maintains unrestricted flow, while the blowout-proof stem and adjustable packing gland support long-term, field-serviceable reliability. The precision-machined brass body resists corrosion and thermal cycling, making it a strong fit for both residential and light commercial use.

Key Features

• Forged Brass Body – Corrosion-resistant and rated for long-term hydronic use.
• Full-Port Ball Valve – Ensures maximum flow with minimal pressure drop.
• Blowout-Proof Stem – Enhances operational safety under pressure fluctuations.
• Adjustable Packing Gland – Allows for field adjustment and resealing without disassembly.
• Compact Flange Design – Compatible with standard 2-bolt circulator pumps.

Specifications

• Nominal Size: 1 inch
• Connection Type: Sweat x Flange (C x Flange)
• Pressure Rating: 600 PSI WOG (non-shock)
• Temperature Range: Up to 250°F
• Material: Forged brass with PTFE seat and stem seal
• Inlet to Outlet Length: 2-15/16 inches
• Top to Inlet Center: 2-1/2 inches
• Warranty: Manufacturer’s limited lifetime

Installation Guidelines

Designed for professional use, this product should be installed by qualified personnel familiar with soldered connections and circulator alignment. Proper orientation and gasket sealing at the pump flange are critical to ensure long-term system integrity. Isolation valves should always be tested after installation to confirm leak-free operation.

Contractor Advantages

This flange assembly minimizes installation time, simplifies pump maintenance, and reduces the need for additional fittings and shutoffs. It's a practical, reliable option for contractors looking to enhance system performance while avoiding callbacks due to leak points or flow restrictions.