Plumbright 28mm Double Seal Insert White plastic

Plumbright Plastic Push-Fit Double Seal Insert

The Plumbright Plastic Push-Fit Double Seal Insert is designed to strengthen and support plastic barrier pipe connections within plumbing and heating systems, including wet underfloor heating installations. Engineered for use with push-fit fittings, this insert helps maintain pipe shape, improves joint integrity, and supports reliable long-term system performance.

Manufactured from durable polymer materials, the insert is suitable for hot and cold water systems and is ideal for both professional installers and DIY customers looking for a dependable plumbing fitting solution.

Key Features and Benefits

• Designed for use with plastic push-fit plumbing and heating fittings
• Provides internal pipe support for secure and reliable connections
• Double seal design helps improve joint performance and stability
• Suitable for hot and cold water systems
• Compatible with polybutylene barrier pipe systems
• Quick and simple installation with no specialist tools required
• Lightweight, corrosion-resistant polymer construction
• Suitable for domestic and commercial plumbing applications
• Helps reduce the risk of pipe distortion within push-fit fittings
• Reusable design supports straightforward maintenance and adjustments

Suitable Applications and Compatibility

This push-fit pipe insert is suitable for use in a wide range of plumbing and heating applications, including wet underfloor heating systems, radiator circuits, hot and cold water distribution, and general plastic pipe installations.

It is designed for compatibility with plastic barrier pipe and push-fit plumbing fittings commonly used within modern heating and plumbing systems.

Role In Underfloor Heating

Within a wet underfloor heating system, pipe inserts play an important role in maintaining secure pipe connections and protecting the integrity of the pipework. By reinforcing the pipe inside the fitting, the insert helps create a stronger connection that can withstand pressure and temperature changes during system operation.

Reliable pipe support is essential for long-term heating system efficiency, helping to reduce the risk of leaks, maintain consistent water flow, and support overall system durability.

Guidance

Ensure the plastic barrier pipe is cut cleanly and square before installation. Fully insert the pipe insert into the pipe end prior to connecting the push-fit fitting. Always follow the pipe and fitting manufacturer’s installation instructions and test the system before covering pipework or commissioning the heating system.

Technical Overview

• Manufactured from durable polymer material
• Suitable for plastic push-fit plumbing systems
• Compatible with hot and cold water applications
• Suitable for plumbing and wet underfloor heating systems
• Kitemark approved for quality assurance
• Corrosion-resistant and non-toxic construction