Plug PP 3" male thread 10 bar black - 7037799

Plug PP 3″ male thread 10 bar black

Rated to PN10 (10 bar) at 20 °C, this 3-inch polypropylene male-threaded plug is one of the largest standard sizes in the PP threaded fitting range — well suited to capping off or blanking unused female-threaded ports on pool plant pipework, filters, manifolds, and tank connectors. Its BSP male thread engages directly into any matching female BSP socket, making it a practical choice for commissioning, maintenance isolation, or permanent termination of 3-inch pipe runs.

Material & chemical resistance

Moulded from solid black polypropylene, the plug is inherently corrosion-proof and resistant to the chlorinated and salt-water environments common in pool plant rooms. PP does not pit, rust, or degrade from contact with pool chemicals under normal operating conditions, giving it a long service life with no protective coatings to maintain.

Thread standard & sealing

The male BSP (BSPP/G) thread conforms to recognised international standards, ensuring compatibility with the broad range of PP, PVC, and brass female fittings found throughout European pool and water-treatment installations. For a pressure-tight seal, PTFE thread tape or an appropriate thread sealant compound should be applied before installation — standard practice for any threaded pipe closure at this bore size.

Sizing & application

At 3 inches, this plug addresses the larger pipework diameters typical of commercial or high-flow pool systems — including main drain lines, balance tank connections, and bypass ports on plant-room filter vessels. It pairs naturally with the wider range of PP threaded fittings (elbows, tees, nipples, tank connectors) where a temporary or permanent blanking solution is needed without welding or solvent cement.