Your Trusted Partner in Malleable Cast Iron & Grooved Pipe Fittings

Tee Fittings

Discover high-performance Grooved Tee Fittings and Malleable Iron Tee Fittings, including Straight Tees and Reducing Tees, designed for seamless flow diversion in fire protection, HVAC, and industrial piping systems. Our ASTM-certified tees ensure leak-free performance, corrosion resistance, and easy installation. Ideal for both equal and reduced branch connections, these durable pipe tee fittings comply with UL/FM standards, offering unmatched durability in high-pressure environments. As a trusted tee fittings supplier, we provide customizable sizes and materials to meet global project demands. Upgrade your piping network with precision-engineered tees for efficient, long-lasting fluid distribution.

Grooved & Threaded Tee Fittings | Industrial & Plumbing Solutions FURDFITTINGS™

At FURDFITTINGS™, we understand that reliable pipe connections are crucial for any successful industrial, commercial, or residential project. That’s why we proudly offer a comprehensive range of tee fittings, encompassing high-quality Ductile Iron Grooved Tee Fittings and robust Threaded Malleable Iron Tee Fittings. Our tee products are engineered to meet demanding application environments, widely used in fire safety systems, efficient HVAC installations, municipal water and drainage works, oil and gas transportation, and various complex industrial piping networks. We are committed to providing products that not only meet but exceed industry standards, such as NSF 61 certified fittings for safe drinking water, and products compliant with ANSI, UL, and FM specifications. Choosing FURDFITTINGS™ tee fittings means selecting easy-to-install, comprehensively-sized, and durable piping solutions. Explore our extensive tee product line now, or contact us directly for a professional custom quote, and let FURDFITTINGS™ safeguard your project.

Our Premier Tee Fitting Products

Malleable Iron Threaded Tees

Our Malleable Iron Threaded Tees offer traditional, robust connections for various low to medium-pressure applications. Available in black or galvanized finishes, they ensure reliability in plumbing, gas, and general industrial systems.

Ductile Iron Tees

Experience fast and secure installations with our Ductile Iron Grooved Tees. Ideal for high-pressure systems, fire protection, HVAC, and water supply, these fittings provide flexibility and superior performance.

Malleable Iron Threaded Tee Fittings

FURD FITTINGS supplies Malleable Iron Threaded Tee Fittings, essential components in traditional piping. Made from high-quality Malleable Iron (ASTM A197), they offer excellent mechanical strength and toughness. Classic NPT or BSPT threaded connections ensure reliable sealing for low to medium pressure fluid systems. Available in black (Black Malleable Tee) or galvanized (Galvanized MI Tee) finishes for enhanced corrosion resistance. As a professional Threaded Tee Pipe Fittings supplier, our tees are widely used in residential plumbing, gas distribution, HVAC end-lines, and general industrial facilities, ideal for Class 150 Malleable Fittings, with options for higher pressure ratings.

Malleable Iron Reducing Tee

A key threaded fitting with different main and branch pipe diameters, enabling pipe size reduction while changing flow direction. Essential for NPT Threaded Reducing Tee for Oil Pipelines and MI Reducing Tee for Plumbing, available in Class 150/300, black or galvanized (e.g., Black Malleable Reducing Tee for Gas Pipe, Galvanized Malleable Reducing Tee for Water Lines). Conforms to ASTM A197.

Malleable Iron Tee Equal

Professional manufacturer of high-quality malleable iron pipe fittings and grooved couplings, specializing in Equal Tee, elbows, and joints. Made from ductile iron with ASTM/ISO certifications, ensuring high strength, corrosion resistance, and longevity. Ideal for fire protection systems, water supply projects, and oil/gas pipelines. Offers custom specifications, anti-rust treatment, and global logistics.

Pipe Fittings Tee Reducer

Also known as Bullhead Malleable Tee when the branch is larger or equal to the main. Features a significantly larger side branch outlet, sometimes exceeding main ports. This Large Branch Malleable Tee is used for diverting large flows or when the main line needs to turn while branching off a large flow, crucial for Side Outlet Tee for Manifolds or distribution systems. Provides OEM/ODM services for contractors and distributors.

Malleable Iron Female & Male Threaded Tee

Highly flexible, with a mix of Female (FPT) and Male (MPT) threaded ports. This Combination Thread Tee Malleable, often an MI Street Tee (e.g., one male, two female ports), allows direct connection to varied threaded pipes or equipment, reducing extra fittings and leak points. Example: 1/2″ MPT x FPT x FPT Malleable Tee. Available as NPT Male Female Male Malleable Tee or Galvanized Street Tee Malleable Iron.

Malleable Iron All Male Threaded Tee

More accurately a Triple Male Threaded Tee MI, with all three ports being male threaded. Uncommon in standard systems but vital for connecting three female-threaded components. Our NPT All Male Malleable Tee (e.g., 1 inch All Male Threaded Tee) ensures precision and strength. Sometimes informally called Malleable Iron Nipple Tee.

Plumbing Fittings Tee Reducing

Premium reducing tee fittings for plumbing systems, designed with malleable iron for high-pressure durability and leak-proof connections. Features ASTM/ISO-certified side outlets to balance flow in HVAC, industrial pipelines, and water distribution networks. Offers custom sizes, hot-dip galvanized anti-corrosion coating, and bulk order discounts. Trusted by contractors for reliable flow control and long-term performance in commercial/residential projects.

Ductile Iron Grooved Tee Fittings

FURD FITTINGS ‘s Ductile Iron Grooved Tee Fittings represent efficiency and reliability in modern piping. Made from high-strength Ductile Iron (ASTM A536) with precision-formed grooves, they enable fast, secure connections with couplings and gaskets (EPDM/Nitrile), eliminating welding or threading. This method offers excellent sealing, vibration absorption, and flexibility, ideal for Fire Protection Grooved Tee applications, large commercial/industrial HVAC Grooved Fittings, municipal water systems, and mining. Our products meet AWWA C606 standards, with many UL/FM certified. Available epoxy coated or galvanized.

Ductile Iron Grooved Equal Tee

Also known as Standard Grooved Tee, it’s a common fitting with identical main and branch diameters for equal flow division. A 4 inch Grooved Equal Tee (or DN100) has three 4-inch ports. Widely used in fire sprinkler systems (often UL FM Approved Grooved Equal Tee), water supply, and HVAC. Available with EPDM or Nitrile gaskets (e.g., EPDM Gasket Grooved Equal Tee). Typically Red Painted or Galvanized, conforming to AWWA C606.

Ductile Iron Grooved x Threaded Reducing Tee

A versatile converter combining grooved convenience with threaded universality. Main ports are grooved, branch port is threaded (NPT/BSPT), and smaller than main. This Reducing Outlet Tee Grooved x Threaded allows easy tapping of smaller threaded lines from a grooved main for gauges, valves, etc. Common in Fire Protection Grooved Threaded Reducing Tee applications (often UL Listed). Enhances system flexibility, sometimes seen as a Grooved Mechanical Tee with Threaded Outlet type.

Ductile Iron Grooved Reducing Tee

Or Reducing Outlet Grooved Tee, designed for different diameter branch connections within a fully grooved system. Branch diameter is smaller than main. Allows smooth transition from larger to smaller grooved lines. Used in large fire systems, water supply, and complex HVAC Systems, like the HVAC Duct Grooved Tee with EPDM Gasket. Meets FM Approved and AWWA Standard specifications, usually Painted Ductile Iron.

Key Features & Product Advantages

Material Assurance

Our ductile iron tees strictly use high-quality ductile iron conforming to ASTM A536, offering excellent strength and toughness. Malleable iron tees use ASTM A197 compliant material, ensuring good mechanical properties and processing precision. We are a trusted Tee Fittings Manufacturer.

Certifications & Standards

Many products are internationally certified. Some tees have NSF 61 certification (NSF 61 Certified Water Supply Tee) for safe use in drinking water systems. For fire systems, many grooved tees have UL Listed Tee Fittings and FM Approved Pipe Fittings certifications. Products also reference ANSI, AWWA, ISO standards.

Fast & Easy Installation

Grooved fittings offer rapid installation, significantly reducing construction time and labor costs. Malleable threaded fittings provide stable performance in traditional systems with mature connection technology.

Wide Applications

Suitable for demanding industrial environments, busy commercial buildings, and critical civil facilities, offering excellent pressure, corrosion, and seismic resistance for long-term system stability.

Durability & Reliability

Engineered for longevity, our fittings withstand harsh conditions, ensuring your piping systems operate reliably for years to come. This includes options for Potable Water Tee Fittings and Lead-Free Tee Fittings where applicable.

Comprehensive Range

We offer a complete product line covering various sizes and pressure ratings to meet diverse project needs, including High Pressure Tee Fittings for specialized industrial applications.

Why Choose Us？

Worry-free After-sales Service

Galvanized Malleable Steel

Hardened material for extra durability

Rust & corosion resistant

Precision Machining

CNC processed with clean cuts

Long-lasting perfommance

Zinc CoatingTechnology

Advanced anti-rust protection

Reinforced Pipe Walls

Premium material thickness

Standard Certifications & Approvals

Our grooved rigid couplings are manufactured to meet or exceed industry standards and often carry approvals from leading certification bodies, demonstrating our commitment to quality and safety in pipe connection solutions. Common certifications include:

UL Listed / ULC Listed

Signifies compliance with Underwriters Laboratories’ stringent safety and performance standards for fire protection equipment and other applications in North America.

FM Approved

FM Approved
Indicates that our ductile iron couplings meet the high property loss prevention standards of FM Global, particularly for fire protection systems.

VdS Approved (Europe)

Recognized in Europe, VdS approval confirms the reliability and quality of our grooved fittings for fire safety and security technology.

ASTM, AWWA, ISO

Our products adhere to relevant ASTM, AWWA, and ISO standards for materials, dimensions, and performance of mechanical pipe joining components.

Applications Across Industries

Fire Protection Systems

In Fire Protection Systems, our UL/FM certified grooved tees and high-quality malleable iron tees are core components for building reliable life safety networks, ensuring rapid and effective delivery of fire suppression agents in emergencies.

HVAC Systems

For HVAC Systems, especially in large commercial and industrial buildings for hot/cold water circulation, ventilation, and smoke extraction, our HVAC Duct Grooved Tee with EPDM Gasket and other products offer efficient, sealed connections.

Industrial Piping

In various Industrial Piping applications like chemical plants, manufacturing facilities, and power plants, our tee fittings withstand chemical corrosion and high pressures/temperatures.

Water Supply & Drainage

In municipal and residential Water Supply and Drainage systems, our tee fittings meet various pressure and flow demands. NSF 61 Certified Water Supply Tee products are ideal for Potable Water Systems, ensuring water quality.

Oil & Gas Pipelines

For the specific requirements of Oil and Gas Pipelines, our NPT Threaded Reducing Tee for Oil Pipelines and other high-strength malleable iron threaded tees ensure tight, secure connections under demanding conditions.

Mining Applications

In Mining Applications, grooved fittings are often used for slurry transport and dewatering systems due to their quick installation and vibration resistance. FURD FITTINGS is your source for Wholesale Pipe Tees and 3 Way Pipe Fitting Tee solutions.