Press gland - internal thread - female thread, 3/4" F x 20

Product detailed description

Press fittings are essential components in modern heating and plumbing systems, enabling secure connections between plastic and metal piping. Installers commonly use these fittings in residential and commercial buildings during the installation of underfloor heating, hot water distribution, and central heating circuits. These systems require precise alignment and leak-tight connections, which press fittings provide through their mechanical compression mechanism. When working with ALPEX piping, it is important to ensure correct tooling and proper installation techniques to avoid leaks and premature failure.

This specific press fitting connects ALPEX pipe to an internal thread. The nickel-plated brass body provides corrosion resistance and durability, while the stainless steel sleeve ensures long-term stability under mechanical stress. The EPDM sealing ring offers flexibility and maintains a tight seal across a range of temperatures. The connection size is designed to match standard copper piping dimensions and threading conventions used in European plumbing and heating applications.

Technical parameters

Material	Nickel-plated brass CW617N
Operating temperature	+120 °C
Nominal pressure	PN 10
Weight	0.105 kg
Code	510013
Brand	IVAR

The maximum operating temperature of 120°C makes this fitting suitable for hot water and heating systems. The nominal pressure rating of PN 10 indicates it can handle medium-pressure environments typical of domestic and light commercial systems. The material selection (nickel-plated brass and EPDM) ensures compatibility with both cold and hot water media, avoiding chemical degradation over time. These parameters are critical when selecting the correct fitting for a given application and system load conditions.

Installation and connection

To install this press fitting, first ensure the ALPEX pipe is cut cleanly and free from burrs. Insert the pipe into the fitting until it reaches the stop mark. Use compatible pressing tools according to the manufacturer’s instructions to apply uniform force around the circumference of the sleeve. After pressing, verify the connection with a leakage test using compressed air or water. Check that the internal thread aligns correctly with the mating component to prevent misalignment and stress points. Common installation errors include using incorrect pressing tools, improper insertion depth, and failure to clean the pipe before assembly.

Compatibility and accessories

This press fitting is compatible with ALPEX piping and standard copper tubing with internal threading. It requires pressing tools of type B-F-TH for correct installation. Additional components such as straight couplings, elbows, and valves should be selected based on the system layout. Ensure all fittings and pipes are from the same manufacturer or certified for mutual compatibility to maintain system integrity.

Technical background for designers

This fitting operates by compressing a stainless steel sleeve around the outer wall of the ALPEX pipe when pressed with the correct tool. The sleeve deforms plastically, creating a permanent mechanical bond. The nickel-plated brass body resists corrosion and wear, making it suitable for long-term use in wet and humid environments. The EPDM seal adapts to minor dimensional variations and remains flexible even at elevated temperatures. To maximise service life, avoid excessive bending or torsional forces on the connected piping and ensure the surrounding environment does not exceed the specified operating temperature.

Service and operation

Routine visual inspections are recommended to check for signs of wear, deformation, or leakage. No regular disassembly or maintenance is required unless a fault is detected. In case of suspected issues, isolate the section and perform a pressure test to identify weak points. Replace damaged or deformed fittings immediately to prevent further system compromise.

Frequently asked questions

Can this fitting be used with copper pipes?
Yes, provided the copper pipe is compatible with ALPEX and the internal thread matches the fitting’s specifications.

Is it possible to reuse a pressed fitting after removal?
No, once a fitting has been pressed, the sleeve is permanently deformed and cannot be reused safely.

What pressing tools are required for this fitting?
Pressing tools of type B-F-TH are required for correct installation and sealing performance.

Can this fitting be used in systems with fluctuating pressures?
Yes, within the specified nominal pressure range of PN 10 and operating temperature limits.