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City Plumbing GB£0.37Visit shop Plumbright White 15Mm Double Seal Insert Plastic Ndsi15m
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The Plumbright 15mm Double Seal Insert (Ndsi15M) is designed for professional plumbers and DIY enthusiasts working on push-fit plumbing and heating systems. Its primary benefit is providing robust internal pipe support paired with a secondary seal to guarantee long-term joint integrity and leak prevention. While it offers a reliable, solder-free alternative for domestic and light commercial projects, users must ensure the pipe is correctly cut and deburred to avoid damaging the insert's seals during installation.
| Model Part Number | Ndsi15M |
|---|---|
| Brand | Plumbright |
It is generally recommended to use a new insert whenever a joint is disconnected and remade to ensure the seals remain intact.
Yes, it is designed for use with compatible 15mm plastic or copper pipe within push-fit systems.
No, you only need a standard pipe cutter and a deburring tool to prepare the pipe before insertion.
Yes, the material is engineered to withstand the high temperatures typically found in domestic heating circuits.
It means the product has been tested to meet the Water Regulations Advisory Scheme standards, making it safe for use with mains drinking water.
Ensure the pipe was deburred properly; a sharp edge may have damaged the secondary seal during insertion.
Verify the pipe is 15mm and perfectly round; use a pipe re-rounder if the pipe end has been crushed.
To ensure a watertight connection, the pipe end must be free of sharp edges that could tear the O-ring seal. Always use a pipe cutter for a clean, square end. Once the insert is pushed fully into the pipe, the assembly should be pushed into the fitting until it 'clicks' or seats securely. Periodically inspect joints in heating systems after initial pressurization to ensure no minor weepage is present. This component is strictly for 15mm pipe; do not attempt to force it into oversized or undersized tubing, as this will compromise the seal.
