Butt Welding Tee

1. Product Description
The tee is a butt welding pipe fitting with three openings, used to branch or merge fluid flow in pipeline systems. It is available in equal tee (all three openings of the same size) and reducing tee (branch opening smaller than the run openings). Both ends are beveled for butt welding, creating a continuous, strong, and leak-resistant joint with the pipe. Manufactured from carbon steel, stainless steel, and alloy steel, the tee is suitable for high-pressure and high-temperature pipeline systems.

2. Key Specifications

1. Material: Carbon Steel (A234 WPB), Stainless Steel (304/304L, 316/316L), Alloy Steel (WP11, WP22)

2. Nominal Size: 1/2” – 48” (DN15 – DN1200)

3. Wall Thickness / Schedule: SCH10 – SCH160, STD, XS, XXS

4. Type: Equal Tee / Reducing Tee

5. Connection: Butt Weld (Beveled End)

6. Standards: ASME B16.9, ASTM A234, ASTM A403, DIN, JIS

7. Surface Treatment: Anti-rust oil, pickled, passivated, or galvanized

3. Applications

1. Petroleum and chemical processing pipelines

2. Natural gas transmission and distribution systems

3. Power generation and nuclear energy facilities

4. Shipbuilding and offshore engineering

5. Water treatment and municipal construction

6. Food processing and general industrial piping

4. Product Advantages

1. Butt-welded joints provide high strength and reliable sealing

2. Uniform wall thickness at the branch junction ensures structural integrity

3. Smooth inner bore minimizes turbulence and pressure loss

4. Available in a wide range of sizes, schedules, and materials

5. Compatible with standard welding procedures and equipment

6. Custom dimensions and materials available for specific projects

5. Product Functions

1. Equal tees divide a single flow into two equal branches or merge two equal flows into one

2. Reducing tees branch a smaller flow from a larger main line or connect pipes of different diameters

3. Maintain system pressure integrity while allowing flow distribution

4. Enable directional control, sampling, or parallel distribution in pipeline networks

6. Instruction for Use

1. Verify tee type, size, schedule, and material match the pipeline design

2. Inspect beveled ends for cracks, dents, or deformation before installation

3. Clean pipe ends and tee bevels; remove oil, rust, and debris

4. Align the tee with the pipe; control misalignment within 10% of wall thickness or 1 mm

5. Tack-weld at multiple points to secure alignment

6. Complete butt welding using an approved procedure (TIG root pass, SMAW or SAW fill/cap)

7. Check dimensions and alignment after welding

8. Perform pressure testing or non-destructive testing as required

7. Precautions

1. Do not subject the tee to impact or drop during storage and handling

2. Keep stainless steel tees away from carbon steel to prevent galvanic corrosion

3. Ensure the pipeline is depressurized and drained before installation

4. Do not use damaged or deformed fittings; inspect the branch junction for cracks before welding

5. Use welding consumables matched to the tee material

6. Install supports near the tee to avoid stress concentration

7. For high-pressure applications, use tees with verified material certificates

8. Shipping Information

1. Standard export packing: wooden case or plywood pallet with moisture-proof wrapping

2. Dispatch within 3–7 working days for stock items; 15–30 days for customized orders

3. Shipping methods: sea freight, air freight, or express courier depending on quantity and destination

4. Tracking number provided upon dispatch

9. Payment Terms

1. T/T (bank transfer): 30% deposit, 70% balance before shipment

2. L/C at sight accepted for larger orders

3. PayPal / Western Union for sample orders

4. All prices are quoted EXW or FOB unless otherwise specified

10. Packaging

1. Each tee is wrapped in plastic film or bubble bag

2. Multiple pieces are packed in sturdy wooden cases or plywood pallets

3. Desiccant is added for sea shipments to prevent moisture

4. Beveled ends are protected with covers to prevent damage

5. Custom labeling and marking available upon request

11. Return & After-Sales Policy

1. 7-day return or exchange for quality defects (buyer bears return freight unless the defect is verified as our responsibility)

2. Custom-made or non-stock items are not eligible for return unless defective

3. Warranty period: 12 months from delivery for manufacturing defects

4. Claims for shortage or damage must be reported within 3 working days of receipt with photo evidence

5. Technical support available for welding procedures, material selection, and installation guidance