Turn piece PRESS, 18 x 16 x 18

Product detailed description

Press tees are essential components in radiant heating systems where multiple branch connections are required. This model is commonly used in residential and commercial buildings with low-pressure hot water systems. It allows for the secure and leak-free branching of ALPEX pipes, ensuring stable flow distribution to individual radiators or underfloor heating loops. Installers working with compact systems benefit from the consistent 40 mm spacing between outlets, which simplifies planning and layout.

The press connection method eliminates the need for soldering or threading, reducing installation time and potential errors. The tee is suitable for use in systems where temperature and pressure conditions remain within specified limits. It is particularly suited for use in underfloor heating circuits, panel radiators and other applications requiring multiple branch points in a single location.

Technical parameters

Installation and connection

The fitting is installed using a dedicated pressing tool to compress the sleeve around the pipe. The nominal sizes of the three connections are 18 mm, 16 mm and 18 mm respectively. Before pressing, ensure the pipe ends are clean and free from burrs. The sleeve must be fully seated against the fitting before applying pressure. Common mistakes include insufficient pressing force, misalignment of the pipe and sleeve, or reusing sleeves after failed attempts. After installation, visually inspect the pressed joint for uniformity and ensure the tool is removed without twisting the pipe.

Compatibility and accessories

This press tee is designed specifically for ALPEX pipes. It requires compatible pressing tools and sleeves for installation. Accessories such as pressing tools, EPDM seals and stainless steel sleeves should be available separately. Due to the specific dimensions and connection method, it is not interchangeable with threaded or soldered fittings. Installers must ensure all components are from the same system to maintain integrity and performance.

Technical background for designers

The press connection operates by deforming the stainless steel sleeve around the pipe and fitting, creating a mechanical and hydraulic seal. The nickel-plated brass body provides good thermal conductivity and structural stability. The EPDM sealing ring ensures flexibility and maintains tightness under varying thermal expansion. The system's performance is influenced by correct installation, material compatibility and adherence to pressure and temperature limits. Designers should consider the 40 mm branch spacing when planning pipe layouts to avoid interference with adjacent components.

Service and operation

Once installed, the fitting requires no routine maintenance. However, during system commissioning, pressure tests should be carried out to confirm the integrity of all joints. In the event of a suspected leak, the affected section must be isolated and inspected. Due to the non-repairable nature of press connections, any damaged joint must be replaced entirely. There are no defined service intervals for this component under normal operating conditions.

Frequently asked questions

Can this press tee be used with copper pipes?
No, it is specifically designed for ALPEX pipes and requires the corresponding sleeve and pressing tool for correct installation.

What is the maximum allowable operating temperature?
The fitting is rated for a maximum operating temperature of +120°C, suitable for most standard and high-efficiency heating systems.

Is it possible to reuse the stainless steel sleeve after a failed pressing attempt?
No, the sleeve must be replaced after each pressing operation to ensure a reliable and leak-free connection.

Can the tee be used in a system with a pressure higher than PN 10?
No, the PN 10 rating defines the maximum allowable pressure for this fitting. Exceeding this limit may compromise the integrity of the connection.