Press fitting stopper - N - 18mm IVAR.IVN51

Product detailed description

Press fitting stoppers are essential components in closed-loop systems such as heating, plumbing, and industrial installations. They are used to seal unused pipe ends or to isolate sections of a system for maintenance or expansion. This stainless steel stopper is suitable for a range of applications including hydronic heating, sprinkler systems, and solar thermal installations. The 18mm diameter makes it ideal for medium-sized piping systems where a secure and long-lasting seal is required.

Installers working in residential, commercial, and industrial environments will find this component suitable for both new installations and system upgrades. The material and design ensure compatibility with a wide range of fluids and gases, including inert gases and pressurised air. The sealing mechanism requires precise installation to ensure a leak-free connection.

Technical parameters

Material	Stainless steel grade Wst. Nr. 1.4404 (AISI 316L)
Operating temperature	-20 °C
Nominal pressure	PN 16
Code	IVN51.18
Brand	IVAR

The nominal pressure rating of PN16 indicates that the stopper is suitable for systems operating at up to 16 bar. The operating temperature range from -20°C to +120°C allows for use in both cold and hot environments. These parameters are critical for system designers to ensure that the component is selected for the correct application and that it will perform reliably under the expected operating conditions.

Installation and connection

The press fitting stopper is installed using a press tool to compress the fitting around the pipe. The connection size is 18mm, and the fitting must be fully seated against the pipe end before pressing. During installation, it is important to ensure that the pipe is clean and free of burrs. A common mistake is failing to press the fitting to the correct depth, which can lead to leaks. The indicator on the fitting must align with the 54 mm mark to confirm a successful press.

Compatibility and accessories

This press fitting stopper is compatible with IVAR steel pipes and press fittings of the same diameter. It is designed for use with 1.4404 stainless steel piping systems. No additional accessories are required for installation, but it is important to use the correct press tool for the fitting size. Related products include IVAR.IVN50 and IVAR.IVN51 series fittings.

Technical background for designers

The press fitting stopper operates by forming a mechanical and hydraulic seal between the pipe and the fitting. The material, 1.4404 stainless steel, is highly resistant to corrosion and suitable for use with a variety of fluids. The integration into the system requires careful consideration of the system pressure and temperature to ensure that the fitting will not fail under operational conditions. The service life of the component is influenced by the quality of the installation and the operating environment.

Service and operation

No regular maintenance is required for this component. However, during routine inspections, it is important to check for signs of leakage or damage. The integrity of the press connection should be verified by inspecting the indicator mark and ensuring that it remains aligned with the 54 mm reference. If a leak is detected, the fitting must be removed and replaced with a new one.

Frequently asked questions

Can the IVN51.18 be used in solar thermal systems?
Yes, the operating temperature range and material make it suitable for solar thermal applications.

Is the IVN51.18 compatible with inert gases?
Yes, the stainless steel material is suitable for use with inert gases and pressurised air.

What is the maximum operating temperature for this fitting?
The maximum operating temperature is +120°C.

Can this fitting be used in industrial applications?
Yes, it is suitable for industrial use due to its robust construction and wide operating temperature range.