O-ring - 18mm; FPM (green) IVAR.IVO.FPM Z

Product detailed description

O-rings are essential components in press-fit piping systems, ensuring leak-free connections under varying pressures and temperatures. Installers working in heating, ventilation, and industrial settings commonly use such seals to maintain system integrity during installation and operation. These systems are typically found in central heating networks, fire sprinkler systems, compressed air lines, and industrial process piping. The sealing effectiveness of O-rings directly influences the reliability and performance of these systems.

In closed-loop and pressurised systems, O-rings prevent fluid leakage between pipe ends and fittings. Their correct specification ensures long-term durability and compatibility with system requirements. Proper handling and installation are critical to avoid damage, which could lead to failure or rework. This includes verifying the fitting size, ensuring the surface is clean and free of debris, and confirming the O-ring is seated correctly within the groove.

Technical parameters

Operating temperature	-20 °C
Nominal pressure	PN 16
Code	I002850
Brand	IVAR

The minimum operating temperature of -20°C makes the O-ring suitable for outdoor and cold-climate installations. The nominal pressure rating of PN16 indicates it can handle sustained internal pressures of up to 16 bar, which is typical for central heating and industrial piping systems. These values are essential when selecting the appropriate seal for a given application, particularly in pressurised environments where failure could compromise safety and performance.

Installation and connection

During installation, the O-ring is placed into the designated groove of the fitting or pipe end. The connection requires precise alignment to ensure the O-ring is not pinched or twisted. Check the mating surfaces for irregularities, dirt, or sharp edges that could damage the seal during assembly. Avoid using tools or force that might deform the O-ring. Common mistakes include incorrect seating, overstretching, or improper lubrication, all of which can reduce the effectiveness of the seal and increase the risk of failure.

Compatibility and accessories

The IVAR I002850 is compatible with standard press-fit steel pipe systems designed for central heating and industrial applications. For complete system functionality, ensure the correct press-fit fittings are selected according to the required pipe size and system specifications. Additional components such as coupling sleeves or expansion joints may be needed depending on the complexity of the installation.

Technical background for designers

FPM (fluorocarbon rubber) is chosen for its resistance to high temperatures and chemical stability, making it suitable for use in diverse environments. The material’s flexibility allows it to conform to slight misalignments while maintaining a tight seal. When integrated into a press-fit system, the O-ring acts as the primary barrier against fluid escape. Its service life depends on factors such as exposure to aggressive media, mechanical stress, and thermal cycling. Designers should consider these variables to optimise the longevity and efficiency of the piping system.

Service and operation

Regular visual inspections are recommended to identify signs of wear, deformation, or degradation. During maintenance checks, ensure the O-ring remains seated properly and has not been displaced due to vibration or pressure fluctuations. No specific service intervals are provided, but replacement should occur if damage or reduced sealing capacity is observed.

Frequently asked questions

Can the IVAR I002850 O-ring be used in central heating systems?
Yes, it is suitable for central heating systems operating under pressurised conditions and within specified temperature ranges.

Is this O-ring compatible with press-fit steel fittings?
Yes, it is designed specifically for use with press-fit steel pipe systems and fittings.

What is the lowest temperature it can withstand?
The O-ring can function in environments as cold as -20°C.

Does it require any special lubricants during installation?
No, no specific lubricants are required, but care should be taken to avoid damaging the seal during assembly.