Bolted t-piece 16x3/4x16 with male thread

Product detailed description

This bolted T-piece is commonly used in residential and commercial buildings for water supply and heating systems. Installers typically work with plastic-metal composite piping, requiring reliable and leak-free connections. This type of fitting is ideal for applications where crimping tools are unavailable or impractical. The design allows for secure and durable connections without the need for specialized equipment.

Typical installation scenarios include underfloor heating systems, radiator circuits, and domestic hot and cold water distribution. The fitting is particularly useful in retrofitting projects where access is limited, and traditional compression or crimped fittings are difficult to apply. The use of bolted fittings reduces installation time and simplifies maintenance, as they can be disassembled and reassembled without damaging the pipe.

Technical parameters

Installation and connection

Installation involves inserting the PEX-AL-PEX pipe into the fitting and tightening with a spanner. The fitting features an external thread and two sealing rings to ensure a watertight connection. It is essential to verify that the pipe is correctly inserted and that the tightening tool engages properly with the nut. Common installation errors include insufficient tightening, which can lead to leaks, and over-tightening, which risks damaging the fitting or pipe. Always check for alignment and ensure the pipe is free from kinks before final tightening.

Compatibility and accessories

This bolted T-piece is compatible with PEX-AL-PEX, PE-RT-AL-PE-RT, and other specified composite pipes. Additional components such as pipe cutters and deburring tools may be needed for preparation. A related alternative is the Bolted T-piece 20x16x20 for plastic-aluminium pipe, suitable for larger diameter systems.

Technical background for designers

The operating principle relies on mechanical clamping force applied through the bolted connection to compress the sealing rings against the pipe surface. The brass body and washer materials offer resistance to corrosion and wear, making the fitting suitable for long-term use in water and heating systems. Integration into the system depends on proper alignment and hydraulic balance. Factors affecting service life include water quality, temperature fluctuations, and installation practices such as over-tightening or misalignment.

Service and operation

Periodic checks for leaks and signs of wear are recommended during routine maintenance. The fitting does not require regular servicing unless a leak is detected. In the event of a leak, disassemble the fitting carefully, inspect the sealing rings and washer for damage, and replace if necessary. Ensure all components are clean and dry before reassembly. There are no specific service intervals provided, but monitoring for performance issues is advised.

Frequently asked questions

Can this T-piece be used with PE-RT pipe?
Yes, it is compatible with PE-RT-AL-PE-RT and other specified composite pipe types.

Is it suitable for gas applications?
No, the fitting is not designed for gas and should not be used in such systems.

What tools are required for installation?
A standard spanner is required to tighten the bolted connection. No crimping tools are needed.

How many sealing rings are included?
Two sealing rings are included to ensure a watertight connection between the pipe and the fitting.

Documents for download

• Hygienically certified brass fittings for PEX-AL-PEX system (PDF)