Certification: UL certification/ FM approval
Standard: Manufactured according to ASME B16.3, B16.14 (Malleable iron castings) or EN 10242 standard.
Temperature: -20℃ to 200℃.
Working pressure: 1.6 MPa to 2.5 MPa (approx 232 psi – 362 psi).
Surface Finish: Hot-dip galvanized / Electro-galvanized / Yellow-zinc plated / Black.
Thread Standard: Compliant with ISO 7/1 (BSPT) or NPT standard.
Malleable Iron 45° Y Branch has a Y shape to get its name. The branch outlet has the same size to the main outlets, and it is used to create a branch pipeline to 45 degree direction.
This product is a malleable iron threaded Wye Tee Fig 165 BSPT (Y-tee), a key pipe fitting used for branching and merging in pipeline systems. It adopts a 45° inclined branch structure to ensure smoother medium flow and lower resistance, widely used in water, oil, gas, steam and other piping systems requiring stable flow distribution.
Are you looking for a pipe fitting with smooth flow passage, low pressure loss, high strength and corrosion resistance? Our malleable iron Wye Tee Fig 165 BSPT is made of high-quality material through high-temperature annealing forging, resulting in a dense internal structure capable of withstanding working pressures up to 1.6Mpa (16kg), effectively solving the risks of turbulence, blockage and leakage at pipe branches. The surface is treated with uniform anti-rust coating, which is continuous and burr-free. The integrated structure has higher strength, greatly improving construction efficiency and service life of the product.
The product is available in various nominal diameters from DN15 (1/2″) to DN100 (4″) and offers multiple surface treatment options such as natural and yellow-zinc plated. It can be widely used in various working conditions including fire protection, water supply, gas, chemical industry, and plumbing installation.
| SIZE | A (MM) | B (MM) | |
| 1/2” | DN15 | 15.5 | 43.4 |
| 3/4” | DN20 | 18.3 | 52 |
| 1” | DN25 | 21.6 | 61.7 |
| 1 1/4” | DN32 | 26 | 74.2 |
| 1 1/2” | DN40 | 27.9 | 83.3 |
| 2” | DN50 | 31.5 | 99.8 |
| 2 1/2” | DN65 | 38.6 | 120 |
| 3” | DN80 | 43.4 | 141 |
| 4” | DN100 | 51 | 177 |
Intended Use:
Fire Protection Systems: Used for smooth branching of fire sprinkler pipe networks and fire risers, suitable for wet or dry fire protection pipe networks.
Commercial Buildings: Applied in air conditioning pipelines, water supply and drainage systems in banks, hotels, and shopping malls.
Industrial Plants: Suitable for industrial pipelines conveying non-strongly corrosive media such as steam, coal gas, and compressed air with low flow resistance requirements.
Residential Plumbing: Used for water circuit modification in home decoration to achieve smooth branching and reduce water noise and pressure loss.
Compatibility:
Perfectly compatible with galvanized steel pipes and black steel pipes.
Must be used with PTFE tape or oiled hemp for thread sealing.
Can be used together with gate valves, globe valves, elbows, unions, and other fittings of the same specification.
Installation Guide:
1.Inspection: Before installation, check the internal and external surfaces of the Wye Tee Fig 165 BSPT for sand holes and cracks, ensure threads are complete without breakage.
2.Cleaning: Remove iron chips and dirt from the pipe ends.
3.Sealing: Wind an appropriate amount of PTFE tape clockwise (recommended 15-20 turns) or apply oiled hemp onto the external thread of the pipe.
4.Tightening: Screw the Wye Tee Fig 165 BSPT and the pipe by hand, then tighten with a pipe wrench. Use moderate force to avoid cracking the fitting. It’s recommended to secure the pipe near the tee with a pipe clamp to reduce vibration.
Maintenance Tips:
1.Inspection Cycle: It is recommended to visually inspect the Wye Tee Fig 165 BSPT every six months, especially at threaded connections, checking for signs of rust or leakage.
2.Cleaning Method: Wipe the surface dust with a clean, damp cloth. For rust removal, use a wire brush to clean and then apply anti-rust paint.
3.Replacement Cycle: Generally, if there is no mechanical damage or severe corrosion, it can be used for over 10 years. If the Wye Tee Fig 165 BSPT shows sand holes, deformation, or cracks due to freezing, replace it immediately.
Product List:
Steel Pipe: Match with standard galvanized steel pipes of the same specification (e.g. DN25, DN50).
Pipe Hangers/Supports: Provide matching U-bolts, hanger rods for fixing pipeline direction.
Other Fittings: Equal tees, reducing tees, street elbows, unions, full thread nipples.
Sealing Materials: High-quality PTFE tape or liquid pipe sealant.
Combining these with our hot-dip galvanized steel pipes and seismic bracing systems builds a sturdy, durable, and code-compliant complete pipeline system. This ensures the pipeline does not detach and fluid delivery is uninterrupted during a fire or emergency.
OEM is available. We can customize the product according to your specific requirements, including logo printing and packaging design.
The MOQ is 500 pieces. For customized products with special sizes or surface treatments, the MOQ may vary.
After order confirmation and receipt of the advance payment, we will arrange production. Generally, the products can be ready for shipment within 15-20 working days. Once dispatched, we will notify you and provide all necessary documents for customs clearance.
All products are 100% new and undergo strict quality inspections, including pressure testing and dimensional checks, before delivery. We use sturdy wooden crates or cartons to ensure the products are well-protected during transportation.
Yes, we provide detailed installation instructions in English and other major languages. Our technical support team is also available for online consultation and guidance if needed.
Sales Inquiry:
Provide contact information for sales inquiries.
Email: [email protected]
Phone: +86 13012223295
If you have any questions regarding product installation, commissioning, operation or maintenance, please contact our technical support team for professional assistance:
Email: [email protected]
