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K12 Class Socket Spigot Branch Tee

Standard: ISO2531/EN545/ISO7186/EN598/ISO4179/ISO8179/EN15189
Size: DN80-2000
Class: K12
Internal Lining: Portland Cement/Blast Furnace Slag Cement/Sulphate Resistant Cement/High Aluminium Cement/Epoxy Paint/FBE(Fushion Bonded Epoxy)/PU
External Coating: Zinc-rich Bitumen/Epoxy Paint/ FBE(Fushion Bonded Epoxy)/PU
Application:
●Water Supply, Transmission and Distribution
● Water Plant and Sewage Treatment Reservoir Piping
● Sewage Collection and Disposal System
● Storm Water Drainage System
● Irrigation System
● Fire Fighting System
Availability:
Quantity:

Socket Spigot Tee with Socket Branch-1

Socket Spigot Tee with Socket Branch-2

Socket Spigot Tee with Socket Branch-3

Socket Spigot Tee with Socket Branch-4


Understanding the Product


The Socket Spigot Tee with Socket Branch is a heavy-duty piping fitting engineered for large-scale fluid distribution systems, where reliable branching and high-pressure resistance are non-negotiable. Unlike standard tee fittings, its socket-spigot design with a dedicated socket branch combines the stability of spigot connections with the convenience of socket fittings, creating a robust junction for DN80 to 2000 pipe sizes. This fitting is designed to handle the demands of municipal, industrial, and agricultural applications, acting as a central hub that splits main pipelines into multiple branches without compromising flow efficiency or structural integrity.


Core Advantages


Wide Size Compatibility

With a size range spanning DN80 to 2000, this tee fitting caters to both small-scale commercial projects and large municipal infrastructure. Its ability to adapt to diverse pipe diameters makes it a versatile solution for complex piping layouts, eliminating the need for multiple fitting types and simplifying inventory management.


High Strength & Durability

Class K12 rating ensures the fitting can withstand extreme operating pressures and mechanical stress, making it suitable for heavy-duty applications such as large water distribution networks and industrial fluid transport. The use of premium materials and precision manufacturing further enhances its durability, reducing the risk of cracks or leaks over time.


Multi-Layer Corrosion Protection

The fitting offers a range of internal linings—including Portland cement, sulphate-resistant cement, and Fusion Bonded Epoxy (FBE)—and external coatings like zinc-rich bitumen and PU. These layers provide superior protection against corrosion, chemical degradation, and environmental wear, ensuring longevity even in harsh conditions.


Typical Uses


Municipal Water Distribution

Cities and towns rely on this socket spigot tee to branch main water lines into residential, commercial, and industrial zones. Its large size compatibility and high-pressure resistance make it ideal for distributing water across extensive networks, ensuring consistent pressure and flow to all users.


Sewage Treatment Facilities

Sewage treatment plants use this tee to redirect wastewater between collection lines, treatment tanks, and disposal systems. The cement and epoxy linings prevent corrosion from sewage chemicals, while the robust socket-spigot design ensures leak-proof performance in high-flow environments.


Agricultural Irrigation & Industrial Applications

Large-scale agricultural irrigation systems use the fitting to split water lines into multiple branches, delivering hydration to vast farmlands efficiently. In industrial settings—such as chemical plants and manufacturing facilities—it redirects process fluids, coolants, and other materials, thanks to its chemical resistance and structural strength.


Design Specifications


Socket-Spigot Structure

The combination of socket and spigot connections creates a dual-security joint: the spigot end ensures a tight fit with the main pipe, while the socket branch provides easy attachment for secondary pipes. This design distributes stress evenly across the fitting, reducing the risk of joint failure and enhancing overall system stability.


Lining & Coating Customization

Internal linings are tailored to application needs: cement linings are ideal for potable water and wastewater, while epoxy and FBE linings offer enhanced chemical resistance. External coatings like zinc-rich bitumen protect against environmental corrosion, making the fitting suitable for buried or outdoor installations.


Precision Engineering & Compliance

Manufactured to meet strict international standards (ISO2531/EN545/ISO7186), the fitting undergoes rigorous quality control—including pressure testing and dimensional checks—to ensure consistency and reliability. Its thick-walled design and precise tolerances ensure compatibility with standard pipes and optimal flow dynamics.


FAQ


Is this fitting suitable for buried piping systems?

Yes, the fitting’s external corrosion-resistant coatings (such as zinc-rich bitumen) make it ideal for buried applications. The robust structure withstands soil pressure and moisture, while the lining options prevent corrosion from underground water or soil chemicals.


Can it be used with potable water systems?

Absolutely. The fitting offers food-safe lining options—including Portland cement and sulphate-resistant cement—that meet potable water standards. These linings prevent contamination and ensure the water remains safe for consumption.


What installation tools are required?

Installation requires standard piping tools, including pipe cutters, deburring tools, and compatible bonding agents or gaskets (depending on the pipe material). For large-diameter fittings, mechanical lifting equipment may be needed to position the fitting correctly. Professional installation is recommended for large-scale projects to ensure proper alignment and joint integrity.


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