Gasket D50 for PP coupling, MAGNAPLAST 13010 – gasket for cast iron connection, D50

MAGNAPLAST gasket D50 for PP coupling is a sealing component designed to create a reliable watertight joint between polypropylene couplings and cast iron pipe fittings. Sized for D50 connections, this gasket fits into the coupling to compress against the cast iron surface and prevent leaks in water and drainage systems. The gasket is intended as a replacement part for maintenance and repair of existing piping assemblies where a PP-to-cast iron interface requires resilient sealing.

Advantages

The D50 gasket provides consistent compression and a secure seal at the PP-to-cast iron interface, reducing risk of leakage. Its geometry and material compatibility are selected to ensure stable performance in potable water and drainage applications. Because it is a direct sealing element for PP couplings, replacement and installation are straightforward during routine pipe maintenance. The product’s design minimizes the need for additional sealants or adhesives when installed correctly.

Suitable for

• Repairing leaks at PP coupling to cast iron pipe connections
• Replacing worn or damaged seals in drainage and waste systems
• Maintenance of domestic and commercial water supply piping where D50 couplings are used
• Plumbing projects requiring a compatible gasket for PP-to-cast iron joints

Key specifications

• Nominal connection size: D50 (sized for 50 mm class coupling interfaces)
• Intended materials: compatible with polypropylene couplings and cast iron fittings
• Function: static sealing gasket for water and drainage systems
• Installation type: insert-fit gasket for compression within PP coupling
• Operating environment: indoor plumbing, drainage, and similar non-corrosive applications

How to use

Ensure pipe ends and coupling surfaces are clean and free of debris before installation. Place the gasket into the PP coupling groove according to the coupling manufacturer’s instructions and align the coupling over the cast iron fitting. Assemble the coupling and tighten or secure per the coupling’s assembly method so the gasket compresses evenly against the mating surfaces. After installation, inspect the joint and perform a pressure or leak test appropriate for the system.

Usage recommendations

Replace the gasket if it shows signs of wear, deformation, or damage. Use only gaskets sized for the coupling and fitting to maintain a reliable seal. For long-term performance, avoid exposure to aggressive chemicals not specified for the gasket material and follow local plumbing standards for installation and testing.