C&N industrial Group, pipe, fitting and flanges manufacturers,fbe epoxy and pe coating for pipeline since 1991,with brand C&N huitong ,C&N hongcheng.
Hot Tap Split Tees
General Specifications
Size Range: 2″ to 30″ (DN50 – DN750)
Type: Full branch / Reducing branch
End Connections: Butt-weld, RF / RTJ Flange
Design Codes: ASME B31.3, B31.4, B31.8, ASME B16.5, B16.9
Inspection: 100% RT on pressure welds, UT, MT, Hydrostatic test
When you need to add a branch to an active pipeline or perform a line stop, shutting down the system is rarely a viable financial option. This is where the Hot Tap Split Tee becomes the most critical component in your piping infrastructure. Designed to provide a full-encirclement reinforcement around the parent pipe, these fittings allow crews to safely branch off existing lines under pressure.
Beyond a Simple “Cut in Half” Unlike standard repair sleeves, a split tee must handle complex stress distributions at the branch intersection. Our split tees are manufactured to function as robust, pressure-containing vessels. The key advantage lies in our manufacturing process. We don’t just torch-cut a standard tee; we utilize high-precision CNC wire-cutting. This guarantees zero material distortion and a perfectly symmetrical split. When clamped around the run pipe, the longitudinal seams mate flawlessly, ensuring a strict, gap-free fit-up that drastically reduces welding time and eliminates the risk of “hi-lo” misalignment.
Material & Standard Compliance Depending on your line medium and pressure ratings, our split tees are typically fabricated from high-grade carbon steel, including ASTM A234 WPB/WPC for standard operations, and High-Yield materials like ASTM A860 WPHY 42 through 70 for demanding oil and gas transmission lines. They are designed in strict accordance with ASME B31.3, B31.4, and B31.8 codes, ensuring they meet the rigorous demands of API 1104 welding standards.
Chemical Composition
Product analysis of plate: The manufacturer shall make an analysis of each mill heat of plate material. The product analysis shall meet the requirements of the plate specification to which the material was ordered.
Product analysis of weld: The manufacturer shall make an analysis of the finished deposited weld material from each 200 feet or fraction thereof. Analysis shall conform to the welding procedure for deposited weld material.
| Grade | C, % | Mn, % | P, % | S, % | Si, % | Cr, % | Mo, % | V, % |
| 2.25Cr | 0.05–0.15 | 0.30–0.60 | ≤0.025 | ≤0.025 | ≤0.50 | 2.00–2.50 | 0.90–1.10 | – |
| Carbon Steel | ≤0.22 | 0.30–1.20 | ≤0.035 | ≤0.035 | 0.15–0.50 | – | – | – |
Mechanical Properties
| Grade | Tensile Strength, MPa | Yield Strength, MPa | Elongation, % |
| 2.25Cr | 415–585 | ≥240 | ≥22 |
| Carbon Steel | ≥415 | ≥240 | ≥22 |
The Field Advantage
- Seamless Hot Tapping: Provides a heavy-duty, reinforced base for hot tap machines and temporary valves.
- Preserves Internal Linings: Extruded or welded branch options allow exterior-only longitudinal welding, minimizing internal heat penetration and protecting anti-corrosion layers.
- Ready to Weld: Smooth, precisely machined bevels mean your welders strike an arc immediately, rather than wasting hours grinding uneven edges.
Struggling with pipeline repairs in tight spaces? C&N’s high-precision Split Fittings are your ultimate problem solver.
Instead of costly shutdowns or extensive dismantling, our CNC wire-cut split reducers and fittings act as a perfect “clamp-on” solution.
Why choose C&N?
1️⃣ Tight Space Master: Install without rotating or removing pipes.
2️⃣ Smart Repair: Acts as a permanent repair sleeve for worn-out joints.
3️⃣ Coating Safe: Weld externally without burning internal pipe linings.
4️⃣ Zero Misalignment: 100% symmetrical cuts mean they mate flawlessly—ready to weld right out of the box! Stop fighting with poor fit-ups.
Choose C&N for seamless pipeline solutions.
