25mm MDPE to 15mm Copper Stopcock – Brass Water Main Valve with Plastic Liner

25mm MDPE to 15mm Copper Stopcock – Brass Water Main Valve with Plastic Liner

Features

The 25mm x 15mm brass stopcock provides a heavy-duty transition solution designed specifically to connect a standard 25mm blue MDPE water main directly to a 15mm copper supply pipe. Manufactured from solid, high-grade brass and fully WRAS approved, this stopcock tap ensures safe, reliable control of your mains water supply while meeting strict UK drinking water standards. Furthermore, it features compression fittings with copper olives on both ends for a secure mechanical grip, and includes a dedicated plastic pipe liner to reinforce the flexible MDPE pipe against distortion under compression. Because you receive a complete, ready-to-install valve kit, you can easily bridge larger underground MDPE pipes to indoor copper plumbing runs. As a result, you achieve a professional, highly reliable, and leak-free mains water connection.

• Direct MDPE to Copper Transition: Precision-engineered to link a 25mm blue MDPE water supply pipe directly to standard 15mm copper pipework. Therefore, it guarantees a snug, accurate cross-system connection.
• WRAS Approved for Complete Peace of Mind: Fully certified and approved by the Water Regulations Advisory Scheme (WRAS). Consequently, it complies with UK water safety regulations for wholesome drinking water systems.
• Solid Brass Construction: Manufactured from high-strength, durable solid brass. Moreover, it resists corrosion, frost damage, and high water pressure for long-lasting performance.
• Includes Plastic 25mm Pipe Liner: Supplied with an essential plastic insert stiffener to reinforce the 25mm MDPE pipe before compression. As a result, it prevents the pipe from collapsing and ensures a permanent watertight seal.
• Reliable Isolation Valve: Features a built-in lever/tap mechanism for easy water flow control and shut-off during maintenance or emergencies. Furthermore, it provides dependable long-term operation.

Technical

• Brand(s): Navigator MSL / Plassson
• MPN(s): BBFST-2515 / PL079500025
• Product Type: MDPE to Copper Stopcock / Isolation Valve
• Connection Type: Compression Fit with Copper Olives
• Size Compatibility: 25mm Blue MDPE Water Main to 15mm Copper Pipe
• Material Construction: Solid Brass Valve with Plastic Pipe Liner
• Certification: WRAS Approved
• Included Accessories: 25mm Plastic Pipe Liner / Insert Stiffener

Details

Transitioning an incoming underground 25mm blue MDPE water main into an indoor 15mm copper plumbing system requires a robust, certified stopcock that can handle mains pressure without slipping or leaking. Moreover, failing to reinforce plastic MDPE pipe under compression can lead to joint failure over time.

Fortunately, this 25mm to 15mm brass stopcock solves the problem with professional efficiency. Because it combines a solid WRAS-approved brass body, secure compression olives, and a dedicated plastic pipe liner insert, it locks the MDPE and copper pipes together safely. Consequently, you achieve a clean, secure, and permanent mains water shut-off valve installation.