1-1/4" Brass Circulator Flange with Integrated Ball Valve.

Reliable Performance – Webstone 1-1/4" Forged Brass Circulator Flange for Hydronic Systems

The Webstone 1-1/4" circulator flange is engineered for demanding hydronic and plumbing installations, delivering a secure connection point for pumps while simplifying assembly. Forged from high-strength brass, this flange eliminates the need for multiple fittings, reducing potential leak paths and streamlining installation in both residential and commercial systems.

Designed to improve workflow efficiency, this component is ideal for professionals who prioritize reliability and jobsite speed. With an integral uni-body structure and robust sealing capabilities, it’s built to withstand high-pressure and high-temperature conditions common in closed-loop heating systems.

Professional Benefits of the Webstone 1-1/4" Circulator Flange

• Forged Brass Construction – Offers superior durability, corrosion resistance, and consistent performance under pressure.
• Integrated Uni-Body Design – Combines multiple parts into one solid unit, minimizing connections and installation time.
• Conical Inlet Port – Reduces flow disruption and turbulence, enhancing circulator pump efficiency.
• Blowout-Proof Stem – Provides an added layer of safety in pressurized systems.
• Adjustable PTFE Packing Gland – Allows for long-term serviceability and fine-tuning of seal integrity without full disassembly.
• Time Savings – Reduces labor by eliminating up to three separate components, saving approximately 18 minutes per installation.

Technical Specifications

• Connection Size: 1-1/4"
• Pressure Rating: 600 psi WOG
• Temperature Rating: 100°F
• Connection Type: IPS x Flange
• Face-to-Face Length: 2-3/8"
• Center-to-Top Dimension: 2-1/16"
• Sealing Elements: PTFE seat and stem seal
• Warranty: Lifetime manufacturer warranty

Installation Guidance

This flange is engineered for ease of installation in new builds or retrofits. For best results and to ensure compliance with local codes, installation should be performed by a licensed plumber or HVAC technician. The pre-assembled design helps reduce potential error and speeds up the connection process at the circulator pump flange.

Designed with the Trade in Mind

For Contractors: Whether you're working on a retrofit or new hydronic loop, this circulator flange delivers time savings, fewer joints, and lasting durability—qualities that help keep your installs efficient and reliable.

For Skilled Homeowners: While the product is accessible for experienced DIYers, the use of proper tools and thread sealing methods is critical to ensure a leak-free, code-compliant installation.

Protect the Integrity of Your System

Don’t settle for multi-part assemblies that increase the chance of future issues. The Webstone 1-1/4" forged brass circulator flange offers a durable, job-ready solution designed for the demands of professional hydronic heating and plumbing systems. Ideal for circulator pump connections where performance and speed matter most.