Description
SML Below Ground Cast Iron 45° Y Branch
The Cast Iron Drainage Pipework 45° Y Branch is designed to create branch connections within below-ground SML drainage systems. Manufactured from grey cast iron and finished with a protective epoxy coating, the fitting provides a durable solution for connecting secondary pipework into a main drainage run. The 45° branch angle helps direct flow into the system while maintaining efficient drainage performance.
Specifications
| Product type | 45° Y branch |
| Range | SML below ground drainage system |
| Material | Grey cast iron EN-GJL-150 |
| Angle | 45° |
| Diameter options | 50mm–200mm |
| Coating | Internal and external epoxy coating |
| Connection type | Socketless |
| Standard | BS EN 877 |
| Certification | CE Marked, BBA Certified, Kitemark approved |
| Fire classification | A1 non-combustible |
Key design features
The 45° branch angle allows flow from a secondary pipeline to enter the main drainage run at a gradual angle, helping maintain efficient movement through the system. Designed for socketless SML installations, the fitting connects using compatible ductile iron or stainless steel couplings to create a secure joint.
Benefits
- Creates reliable branch connections within drainage systems.
- Cast iron construction provides strength and durability.
- Epoxy coating helps protect against corrosion.
- Compatible with SML socketless drainage systems.
- Smooth internal surface helps minimise debris build-up.
Applications
The SML below ground cast iron 45° Y branch directs flow smoothly where two underground pipes connect, helping maintain efficient drainage performance. Suitable for soil, waste, and rainwater systems, this fitting is widely used in both commercial and residential cast iron drainage pipework. Its robust cast iron construction ensures dependable strength and long-term reliability in underground installations.
Explore More
Browse our complete range of SML pipes, fittings and other SML below-ground components from Castings Drainage.
Contact Us
For specifications, installation advice, or delivery information, contact Castings Drainage for expert support and UK-wide supply.




