Brett Martin 110mm Push-Fit Soil 135º Double Socket Branch Without Bosses

Key Features Summary

• Secure Ring-Seal Push-Fit: Features pre-lubricated elastomeric seal rings for simple, tool-free push-fit insertion and a reliable, watertight joint.

• 135° Branch Offset: Perfect for directing wastewater into soil stacks at a 135° (45° sweep) angle, optimizing internal flow dynamics and preventing blockages.

• Unbossed Compact Design: Supplied without integrated boss points, providing a clean, space-saving connection where extra waste pipe feeds are not required.

• Durable uPVC Construction: Impact-resistant, UV-stabilized, and non-corrosive uPVC built to handle continuous soil and waste discharge.

• Fully Certified: Manufactured in the UK to BS EN 1329-1 standards, ensuring full compliance with UK building regulations for soil and vent systems.

   

Frequently Asked Questions (FAQ)

What is the difference between a 135° branch and a 92.5° branch?

A 135° branch introduces a gentler 45° angle offset into the main stack, which helps maintain fluid velocity and reduces impact noise compared to a sharper 92.5° (near right-angle) branch.

Do I need lubricant when fitting the BS419 push-fit branch?

Yes. Using a dedicated silicone pipe lubricant on the spigot ends prior to pushing them into the rubber ring seal ensures smooth insertion, prevents the seal from dislodging, and protects the gasket from damage.

Can I add waste pipe connections to this unbossed fitting later?

Because this model is unbossed (smooth-walled without pre-molded socket positions), you cannot punch out a boss cap. If you need to connect smaller 32mm or 40mm waste pipes at this junction, you should choose a bossed soil branch or install a strap-on boss elsewhere on the pipe run.

The Brett Martin 110mm Push-Fit Soil 135° Double Socket Branch (BS419) is an essential fitting for constructing efficient, leak-free soil stack networks in both domestic and commercial builds. Designed with two ring-seal sockets and one spigot end, this branch junction allows a secondary 110mm waste or soil pipe to connect smoothly into a main vertical vertical stack at a 135° angle.

Featuring Brett Martin’s high-performance push-fit rubber seal technology, the BS419 fitting creates an immediate, secure joint while accommodating natural thermal expansion and contraction within the pipework. The smooth internal bore ensures high-velocity flow rates and reduces the build-up of debris over time.

This unbossed variant is ideal for clean installations where additional waste pipe feeds (such as 32mm or 40mm sink/shower pipes) are not needed at the junction point. Made from high-grade, lightweight uPVC in a classic grey finish, it seamlessly integrates with standard 110mm push-fit soil systems.

Technical Specifications Table

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