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Precision Engineering:Designed with an 87.5° branch angle to maintain optimal flow dynamics in main drainage lines.
Double Socket Design: Features push-fit sockets with integrated captive rubber ring seals for fast, secure, and leak-free connections.
Durable & Chemical Resistant: Made from high-grade PVCu, resistant to ground movement, thermal expansion, and common soil chemicals.
Fully Certified:Manufactured to BS EN 1401-1 / BS EN 13598-1 standards, carrying the BSI Kitemark for peace of mind.
Lightweight & Practical: Easy to maneuver, position, and install on-site compared to traditional concrete or clay alternatives.
The Brett Martin 315mm 87 1/2º Double Socket Branch (Code: B31318) is a robust PVCu fitting designed to connect a 315mm secondary drain run into a main 315mm underground drainage system at an 87.5° angle.Built for strength, ease of installation, and long-term leak-free performance, it is ideal for commercial, civil, and large-scale residential drainage applications.
Ensure smooth, reliable wastewater and surface water management with the Brett Martin 315mm 87 1/2º Double Socket Branch. Manufactured in the UK to strict industry standards, this high-performance underground drainage fitting allows you to introduce a near-right-angle branch line into a main 315mm sewer or stormwater pipeline.
Constructed from heavy-duty PVCu, this fitting features captive rubber seal sockets that ensure an airtight, watertight joint, minimizing the risk of leaks or root ingress over time.Its lightweight design makes handling on-site straight forward without compromising on structural integrity or impact resistance. Fully compatible with standard 315mm underground drainage systems, it is an essential component for groundwork contractors and civil engineering projects.
Code:
Technical Specifications
Attribute
Specification
Brand
Brett Martin
Product Code / MPN
B31318
Main Pipe Diameter
315mm
Branch Pipe Diameter
315mm
Branch Angle
87.5° (87 1/2º)
Connection Type
Double Socket (Push-Fit)
Material
PVCu (Terracotta)
Application
Underground Sewerage & Stormwater Systems
Standards Compliance
BS EN 1401-1 / BS EN 13598-1
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