Brass blanking cap 1/2" FERRO ZAS2Z — threaded plumbing end cap

FERRO brass blanking cap ZAS2Z for 1/2" threaded connections is a solid brass end cap designed to close or seal plumbing fittings, radiator outlets, valves and pipe ends with a 1/2" thread. It is manufactured from corrosion-resistant brass suitable for potable water and heating systems where a durable threaded cap is required to stop flow temporarily or finish a permanent installation. The compact, cylindrical design provides a tight mechanical seal when screwed onto compatible male threads and can be used in domestic and commercial plumbing installations.

Advantages

The brass construction offers good resistance to corrosion and limescale deposits, ensuring long service life in water and heating applications. Its standard 1/2" thread ensures compatibility with common plumbing fittings and radiator outlets. The simple screw-on design enables quick installation and removal without specialized tools, while the solid form provides a reliable seal to prevent leaks and protect system components during maintenance or storage.

Suitable for

• Sealing unused threaded outlets on radiators and valves
• Temporarily capping pipe ends during plumbing work
• Finishing connections in potable water and heating systems
• Protecting threads from dirt and damage during transport or storage

Key specifications

• Material: brass
• Thread size: 1/2" (female screw-on cap for 1/2" male thread)
• Application: potable water and heating systems
• Design: solid, screw-on end cap
• Finish: metallic brass surface

How to use

Ensure the mating male thread is clean and free of debris or old sealing material. Screw the brass blanking cap clockwise onto the 1/2" male thread until hand-tight, then secure further with an appropriate wrench if a firmer seal is required; avoid excessive torque to prevent thread damage. For systems under pressure, use an appropriate thread sealant or PTFE tape on the male thread before fitting to enhance leak tightness. To remove, unscrew the cap counterclockwise and inspect the threads and sealing surfaces for wear or corrosion.

Usage recommendations

For installations in potable water systems, verify material compatibility with local plumbing codes. Apply thread sealant or PTFE tape when the cap will be subjected to pressure. Periodically inspect capped connections for signs of corrosion or loosening, especially in heating systems that undergo thermal cycling.