Brass internal threaded coupling TECE 25 x 1" for plumbing connections

TECE brass internal threaded coupling 25 x 1" provides a female threaded connection for joining compatible 25 mm pipes and fittings in potable water and plumbing systems. Manufactured from brass, the coupling offers corrosion resistance and sufficient mechanical strength for standard domestic and commercial water installations, repair jobs and system extensions. The product is designed to create a reliable threaded junction between pipelines or components that accept a 1" (inch) internal thread on a 25 mm pipe interface.

Advantages

The brass construction ensures long-term resistance to corrosion and mineral buildup while maintaining structural integrity under typical water system pressures. The internal (female) thread enables a compact connection that fits into existing assemblies and minimizes external protrusion. The coupling is compatible with standard 25 mm plumbing components and is suitable for straightforward installation without special tools beyond common plumbing equipment.

Suitable for

• Connecting two 25 mm pipes or fittings where an internal 1" thread is required
• Repairs of leaking threaded joints in water supply lines
• Extensions or modifications of potable water distribution networks
• Integration with valves, adapters or fixtures that accept a female 1" thread

Key specifications

• Material: brass for corrosion resistance and durability
• Thread type: internal (female) thread
• Thread size: 25 x 1" (designed for 25 mm pipe interface with 1" internal thread)
• Application: plumbing and water installations
• Suitable media: potable water and non-aggressive fluids

How to use

Prepare the mating pipe ends by cleaning threads and ensuring they are free of debris or old sealant. Use appropriate thread sealant such as PTFE tape or liquid thread sealant suitable for potable water applications, applied according to the sealant manufacturer's instructions. Screw the external threaded fitting or pipe into the coupling by hand until seated, then tighten with a suitable wrench to the torque recommended for brass fittings to avoid over-tightening. Verify alignment and, after pressurizing the system, inspect the connection for leaks.

Usage recommendations

For reliable, long-term performance use thread sealing materials approved for drinking water when installing in potable water systems. Avoid excessive torque during assembly to prevent thread deformation; if unsure, consult the installation guidelines for brass pipe fittings or a licensed plumber.