Grommet - male thread - N - 76,1mm-R2 1/2" IVAR.IVN81

Product detailed description

Press-to-thread adapters are essential components in modern building services for connecting press-fitted pipe systems to threaded equipment. This type of fitting is commonly used in heating systems, fire sprinkler installations, solar thermal circuits and industrial piping where a transition from press-fitted stainless steel pipe to threaded components is required. Installers working on commercial and residential buildings, including hospitals, schools and industrial facilities, frequently encounter these connections when integrating press systems with valves, meters or other threaded devices.

Proper selection and installation of these fittings is crucial for maintaining system integrity. The connection must be dimensionally accurate to ensure the press tool can compress the fitting correctly, and the thread must be clean and undamaged to prevent leaks. The operating conditions, including temperature and pressure, must also be considered to ensure long-term reliability.

Technical parameters

Material	Stainless steel grade 1.4404 (AISI 316L), EPDM O-ring
Operating temperature	-20 °C
Nominal pressure	PN 16
Code	IVN81.7622
Brand	IVAR

The nominal pressure rating of PN 16 indicates the fitting is suitable for systems operating at up to 16 bar. The temperature range from -20 °C to +120 °C allows for use in both cold and hot applications. These parameters are essential for determining compatibility with the system's design conditions and for selecting the correct sealing material.

Installation and connection

The fitting connects a 76.1 mm diameter stainless steel pipe to an external R2 1/2 inch thread. The installation process involves inserting the pipe into the fitting, ensuring the insertion depth indicator aligns with the mark, and then pressing the fitting using a suitable press tool. The thread must be clean and free of burrs to ensure a tight seal. Common installation errors include incorrect insertion depth, using the wrong press tool, or failing to check the sealing ring condition before pressing.

Compatibility and accessories

This fitting is compatible with stainless steel press pipe systems of 76.1 mm diameter. It requires a press tool suitable for the fitting's dimensions and a thread cleaner for the R2 1/2 inch connection. No additional products are listed as related or alternative options for this model.

Technical background for designers

The fitting functions by creating a mechanical and hydraulic seal between the press pipe and the threaded component. The stainless steel body provides high corrosion resistance and mechanical strength, making it suitable for aggressive media and high-pressure environments. The EPDM O-ring ensures a tight seal across the temperature range. The integration into the system depends on correct sizing and alignment with the system's pressure and temperature requirements. The service life is influenced by the quality of the press connection and the condition of the sealing ring.

Service and operation

No specific service intervals are provided for this fitting. Regular visual inspections should be carried out to check for signs of leakage, corrosion or mechanical damage. The integrity of the press connection should be verified during routine maintenance checks. If the fitting is found to be leaking, it must be replaced as re-pressing is not recommended for stainless steel press fittings.

Frequently asked questions

Can this fitting be used in solar thermal systems?
Yes, the operating temperature range of up to +120 °C and the material properties make it suitable for solar thermal applications.

Is this fitting compatible with 1.4404 stainless steel pipe?
Yes, the fitting is made of the same material and is designed for use with 1.4404 stainless steel pipe of 76.1 mm diameter.

Can the fitting be re-pressed after initial installation?
No, re-pressing is not recommended for stainless steel press fittings. A new fitting must be installed if the connection is compromised.

What is the maximum operating pressure for this fitting?
The fitting is rated for a nominal pressure of PN 16, which corresponds to a maximum operating pressure of 16 bar at standard temperature conditions.