O-ring - for PRESS fittings PPSU - 20x2 IVAR.OR-PPSU

Product detailed description

This sealing ring is used in press-fit systems for gas distribution networks, particularly in residential, commercial and industrial buildings. Installers and fitters working with press-fit piping systems will find this seal essential for ensuring leak-tight connections in gas-phase applications. The seal supports standard installation practices for press-fit systems, where precision and consistency are critical for long-term performance.

In systems requiring frequent maintenance or expansion, this O-ring allows for quick reconnections without compromising integrity. Its design accommodates typical installation conditions found in gas infrastructure projects, including variations in ambient temperature and pressure fluctuations during operation.

Technical parameters

Material	EPDM
Code	74720510
Brand	IVAR

The O-ring is rated for a maximum allowable operating pressure of PN 5 and can function within a temperature range of -20°C to +70°C. These specifications are crucial when selecting the appropriate sealing solution for gas-phase lines carrying natural gas, biogas or propane. The material and dimensions ensure compatibility with PPSU-based press fittings.

Installation and connection

To install this O-ring, place it into the designated groove within the fitting prior to pressing the pipe into position. The fitting must be compatible with PPSU pipes and prepared according to standard press-fit installation protocols. Ensure the O-ring is seated correctly and not pinched or twisted during assembly. Common errors include improper alignment or using damaged seals, which can lead to leaks or compromised joint integrity. Verify that the pipe end is clean and free from burrs before pressing.

Compatibility and accessories

This O-ring is specifically designed for use with IVAR press fittings in PPSU pipe systems. When replacing or maintaining such systems, ensure that all components are from the same manufacturer to maintain compatibility. Additional accessories such as press tools and pipe cutters should also be verified for suitability with the system. Related products include IVAR PPSU press fittings and PPSU pipes of corresponding dimensions.

Technical background for designers

As a flat sealing ring made from EPDM, this component relies on compression to form a tight seal between mating surfaces. EPDM is known for its resistance to weathering and thermal stability, making it suitable for long-term exposure to fluctuating temperatures. In gas-phase systems, the material’s resilience against common gases ensures consistent performance over time. The sealing effect depends on correct installation and uniform pressure distribution across the contact surface. The choice of EPDM influences the system’s durability and ability to withstand operational stress.

Service and operation

During regular inspections, check the condition of the O-ring for signs of wear, deformation or chemical degradation. If any damage is detected, replace the seal immediately to prevent potential leaks. There are no specified service intervals, but periodic visual checks are recommended, especially after system modifications or following periods of high-pressure use. Ensure that replacement parts meet the original specifications to avoid mismatches in size or material.

Frequently asked questions

Can this O-ring be used with PPSU press fittings?
Yes, it is specifically designed for PPSU press fittings and provides a reliable seal when installed correctly.

Is this seal suitable for both natural gas and propane systems?
It is approved for use in natural gas, biogas and propane gas-phase systems, provided the operating parameters remain within the stated limits.

What is the maximum allowable temperature range for this O-ring?
The operational temperature range is from -20°C to +70°C, beyond which the material may degrade or lose sealing effectiveness.

Can I reuse an old O-ring if it appears undamaged?
Even if visually undamaged, it is not recommended to reuse the O-ring due to possible micro-deformations or loss of elasticity from previous compression cycles.