O-ring GAS - 76,1mm (yellow) IVAR.IVO.HNBR Z

Product detailed description

This O-ring is a critical sealing component used in a variety of industrial and technical applications. It is commonly found in heating systems, industrial gas lines, and press-fitting systems. Installers working in commercial buildings, industrial facilities, and technical infrastructure will find this part useful for ensuring tight, reliable connections. Its design supports both high and low-pressure environments, making it suitable for integration into diverse system configurations such as solar systems, compressed air networks, and medical technology installations.

Its compact form factor and robust materials make it ideal for press-fit connections where precision and durability are required. The sealing surface must be clean and free of debris during installation to ensure a proper fit and prevent leakage. The O-ring is typically installed in conjunction with press-fit fittings and must be compatible with the specific press tools being used.

Technical parameters

Operating temperature	-20 °C
Nominal pressure	PN 10
Code	I003266
Brand	IVAR

The operating temperature limit of -20°C means this O-ring is suitable for cold environments, but should not be used in consistently freezing conditions without additional insulation or system design considerations. The PN 10 pressure rating indicates its suitability for medium-pressure applications, which is important for correct system sizing and ensuring long-term performance under load.

Installation and connection

To install the O-ring correctly, begin by inspecting the mating surfaces for damage or irregularities. The O-ring must be seated properly within the groove to avoid distortion or misalignment. The press-fit connection requires the use of compatible press tools calibrated for the specified size. The maximum effective press-fit length is up to 54 mm, beyond which the seal may not perform as intended. Ensure that the O-ring is fully inserted and that the press tool applies even pressure to avoid uneven deformation. Common mistakes include using incorrect tooling, reusing old seals, or applying excessive force during installation, all of which can compromise the integrity of the connection.

Compatibility and accessories

This O-ring is designed to work with IVAR press-fit fittings and must be used in conjunction with the correct press tools. It is compatible with stainless steel pipes and fittings made from AISI 316L (1.4404). Additional components such as pipe ends, coupling bodies, and press sleeves may be required depending on the system configuration. When replacing or repairing parts, ensure that all components are from the same system series to maintain compatibility and performance.

Technical background for designers

The O-ring relies on its elastic properties to create a tight seal between two mating surfaces. It is manufactured from EPDM rubber, which provides good resistance to heat, water, and certain oils. The stainless steel housing offers corrosion resistance and mechanical strength. The integration into the system depends on the press-fit method, where the O-ring is compressed within the fitting to create a leak-tight connection. System longevity is affected by factors such as installation quality, environmental conditions, and the frequency of thermal cycling. Designers should consider these variables when specifying materials and connection methods for long-term reliability.

Service and operation

Routine visual inspections are recommended to detect signs of wear, cracking, or deformation. The O-ring should be replaced if any damage is observed, or if the system has been exposed to conditions outside its operational limits. During maintenance, ensure that the mating surfaces are clean and free from contaminants before reinstallation. There are no defined service intervals provided in the technical documentation, so replacement should be based on condition rather than time.

Frequently asked questions

Can this O-ring be used with stainless steel press fittings?
Yes, it is compatible with press fittings made from stainless steel grade 1.4404 (AISI 316L) as specified in the product documentation.

Is this O-ring suitable for use in medical gas systems?
Yes, the product is approved for use in medical technology applications, provided the system design adheres to relevant standards and installation guidelines.

What is the maximum allowable operating temperature?
The O-ring is rated for continuous operation up to +85°C, with a short-term maximum of +120°C.

Can the O-ring be reused after removal?
No, once removed or deformed during installation, the O-ring should not be reused. Reuse could lead to compromised sealing performance and potential leaks.