This Polyplumb Push Fit Straight Coupling 15mm connects internal plumbing and heating pipework by seamlessly joining two lengths of pipe in a straight line. Specifically, it provides a highly durable, permanent, and completely leak-free joint for your water distribution networks. Furthermore, thanks to the innovative push-fit technology, you significantly speed up installation by eliminating the need for time-consuming soldering or specialized tools on site.
Therefore, this Polyplumb Push Fit Coupling 15mm works perfectly for underfloor heating (UFH), radiator heating, and hot and cold domestic water systems. Additionally, it easily handles demanding applications, integrating smoothly with both modern polybutylene (PB) and traditional copper piping.
The fitting features a robust construction engineered from high-grade polybutylene alongside high-performance stainless steel grab rings. Moreover, the material is highly resistant to scale build-up and designed for continuous, high-performance operation over decades. As a result, this reliable build makes it fully hygienic and dependable for long-term residential and commercial installations.
Key Features & Benefits:
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Fast Push-Fit Installation: The fitting design allows for instant connection by simply pushing the pipes into both ends of the socket. Consequently, you achieve fast, flexible installation in tight spaces without the need for hot works or complex machinery.
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Secure & Permanent Joint: The system incorporates precision-engineered grab rings and internal seals. For example, when you insert the pipes, these components effectively lock them in place and protect against pressure drops. Ultimately, this allows you to create highly secure and maintenance-free plumbing systems.
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Corrosion & Scale Resistance: The polybutylene material acts as a smooth, durable barrier against waterborne minerals. Importantly, it completely prevents the build-up of limescale and resists chemical degradation. Therefore, it guarantees full protection and maintains optimal flow rates across the installation.
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Acoustic & Vibration Reduction: The inherent flexibility of the plastic components helps absorb system vibrations. In particular, this fitting also provides an acoustic function, effectively dampening the noise of water flowing under pressure and reducing water hammer effects.
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High Thermal Stability: The straight coupling provides excellent structural integrity even under elevated temperatures. Besides that, this performance is fully compatible with standard central heating parameters, which significantly reduces stress and the risk of joint failure across the entire plumbing network.
Technical Specifications:
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Brand: Polyplumb (Polypipe)
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Product Type: Push-Fit Straight Coupling (Straight Connector)
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Material: Polybutylene (PB) / Stainless Steel Grab Ring
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Shape: Straight
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Size: 15mm
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Connection Type: Push-Fit
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Application: Central Heating, Underfloor Heating, and Potable Water (Hot & Cold)













