Pipe cap - N - 88,9mm IVAR.IVN50

Product detailed description

Steel pipe caps are essential components in press-fit piping systems for building services engineering. This stainless steel cap is commonly used in heating systems, fire suppression installations, and industrial gas lines where a secure, leak-tight seal is required. The 88.9mm diameter makes it suitable for medium to large bore piping applications in commercial buildings, industrial facilities and infrastructure projects. The press-fit connection method ensures rapid installation while maintaining system integrity under operational pressures and temperatures.

When working with stainless steel piping systems, proper sealing is critical to prevent media leakage and maintain system efficiency. This pipe cap is designed for use with press-fit fittings and requires a specific pressing tool to create a permanent mechanical connection. The EPDM O-ring ensures a tight seal against the pipe wall, while the stainless steel body provides corrosion resistance and mechanical strength. The operating temperature range from -20°C to +120°C allows use in both cold and hot service conditions.

Technical parameters

Material	Stainless steel grade Wst. Nr. 1.4404 (AISI 316L), EPDM O-ring
Operating temperature	-20 °C
Nominal pressure	PN 16
Code	IVN50.89
Brand	IVAR

The PN16 pressure rating indicates the maximum allowable working pressure at 20°C. This rating helps determine the suitability for different applications based on system pressure requirements. The stainless steel grade 1.4404 (AISI 316L) offers good resistance to corrosion and is suitable for use with a variety of media including water, steam and inert gases. The EPDM O-ring provides a flexible seal that maintains integrity across the specified temperature range.

Installation and connection

The installation process involves inserting the pipe into the cap and using a press tool to compress the fitting around the pipe wall. The press operation must be performed according to the manufacturer's specifications to ensure a leak-tight connection. The connection size is 88.9mm nominal diameter with a press-fit connection method. During installation, it is important to check that the pipe end is clean and free from burrs. Common installation errors include incorrect pressing depth and using incompatible pressing tools, which can compromise the connection's integrity.

Compatibility and accessories

This stainless steel pipe cap is compatible with other press-fit fittings from IVAR in the same size range. For a complete system, it is necessary to use compatible pressing tools and ensure that all components are from the same press-fit system. The EPDM O-ring is an integral part of the sealing mechanism and must not be replaced with alternative materials. No additional accessories are required for standard installation.

Technical background for designers

The press-fit connection relies on a mechanical deformation of the fitting to create a permanent bond with the pipe. The stainless steel body provides structural strength while the EPDM O-ring ensures a tight seal against the pipe wall. The material properties of 1.4404 stainless steel include good corrosion resistance and mechanical strength, making it suitable for a wide range of applications. The operating temperature range is influenced by the properties of the EPDM O-ring, which maintains flexibility and sealing capability within the specified limits. The system's efficiency and service life depend on proper installation and compatibility with other components in the piping network.

Service and operation

No regular maintenance is required for this type of press-fit connection once it has been properly installed. The system should be checked for leaks during commissioning and after any modifications. The EPDM O-ring should remain flexible and intact during operation. If a leak is detected, the affected section should be replaced rather than repaired, as press-fit connections are not designed for disassembly.

Frequently asked questions

Can this pipe cap be used with copper pipes?
No, this stainless steel cap is specifically designed for use with stainless steel pipes in press-fit systems.

What is the maximum operating temperature for this cap?
The maximum operating temperature is +120°C according to the manufacturer's specifications.

Is it possible to reuse this cap after pressing?
No, the press-fit connection is a permanent mechanical bond and the cap cannot be reused once installed.

What type of sealing material is used in this cap?
An EPDM O-ring is used to create a flexible and durable seal between the cap and the pipe wall.