Fittings - for PEX pipe - 18x2 PEX-EK IVAR.TP 4410

Product detailed description

Threaded clamping fittings for PEX pipes are essential components in modern heating and plumbing systems. They are commonly used in residential and commercial buildings for connecting PEX tubing in radiant floor heating, hot and cold water distribution, and underfloor heating systems. These fittings allow for secure and leak-free connections, especially in environments where thermal expansion and contraction are frequent. Installers working with PEX systems rely on such fittings to ensure system integrity and longevity.

The IVAR 18x2 PEX-EK fitting is specifically designed for use with PEX pipes of appropriate dimensions. It provides a reliable mechanical connection through a clamping mechanism and is suitable for installation in both new builds and renovation projects. The Eurocone design ensures a tight seal, and the brass construction offers resistance to corrosion and wear.

Technical parameters

Nominal pressure	PN 10
Code	500650
Brand	IVAR

The nominal pressure rating of PN10 indicates that the fitting is suitable for systems operating at pressures up to 10 bar at standard temperatures. The maximum operating temperature of 120°C makes it compatible with hot water systems and underfloor heating applications. These parameters are critical for correct system sizing and component selection to ensure safe and efficient operation.

Installation and connection

The fitting is installed by threading it onto the corresponding pipe or fitting. The PEX pipe must be properly prepared by cutting it square and removing any burrs or debris. The Eurocone sealing surface must align precisely with the mating component to prevent leaks. A torque wrench should be used to tighten the fitting to the recommended torque range of 30–40 Nm. Common installation errors include over-tightening, which can damage the sealing ring, or under-tightening, which may lead to leaks. It is important to verify that the threads are clean and undamaged before assembly.

Compatibility and accessories

This fitting is compatible with PEX pipes of the correct dimensions and with Eurocone sealing systems. For complete system integration, additional fittings such as elbows, tees, and couplings may be required. The brass construction allows for use with standard plumbing and heating components. Related products include other threaded fittings and sealing rings suitable for similar applications.

Technical background for designers

The operating principle of the fitting relies on the mechanical clamping force provided by the threaded connection and the sealing effect of the EPDM ring. Brass CW617N is selected for its strength, corrosion resistance, and compatibility with water and heating media. The Eurocone design ensures a metal-to-metal seal, which enhances reliability under thermal cycling. System designers should consider the pressure and temperature limits when integrating the fitting into a larger network. The material properties also influence the long-term performance and resistance to chemical exposure in the system environment.

Service and operation

Routine inspection should focus on checking for signs of leakage, corrosion, or wear around the sealing surfaces. If any issues arise, the fitting should be disassembled, cleaned, and resealed with a new EPDM ring if necessary. There are no specified service intervals in the provided data, but regular visual checks are recommended as part of general system maintenance.

Frequently asked questions

Can the IVAR 18x2 PEX-EK be connected to copper pipes?
Yes, provided the copper fitting has a matching Eurocone design and compatible thread size. The brass construction ensures compatibility with copper in terms of material properties and sealing.

Is the EPDM sealing ring suitable for hot water systems?
Yes, the EPDM material is resistant to hot water and maintains its sealing properties at temperatures up to 120°C, making it suitable for domestic hot water and underfloor heating applications.

Can the fitting be used in pressurized systems beyond 10 bar?
No, the nominal pressure rating of PN10 means the fitting is designed for systems operating at up to 10 bar. Exceeding this limit may compromise the integrity of the connection.

What tools are required for installation?
A torque wrench capable of applying 30–40 Nm is recommended for tightening the fitting. A pipe cutter and deburring tool are also needed for preparing the PEX pipe before installation.

Documents for download

• CSTL_IVAR.TP (PDF)
• CSNAVOD_IVAR.TP (PDF)
• SKTL_IVAR.TP czver (PDF)
• SKNAVOD_IVAR.TP czver (PDF)