Flat gasket - 28mm; FPM (green) IVAR.IVPT.FPM

Product detailed description

Flat gaskets are essential components in industrial and commercial piping systems where reliable sealing is required under varying thermal and mechanical loads. This particular flat gasket is commonly used in oil transfer lines, fuel storage facilities and solar thermal systems where the medium can range from viscous oils to volatile fuels. Installers working in HVAC, energy and process engineering often encounter such components during maintenance, upgrades or new installations. Correct selection and installation ensure long-term performance and prevent costly leaks or contamination.

In systems with flanged connections, these gaskets provide a flexible yet durable sealing surface between mating flanges. They are particularly suited for environments where temperature fluctuations and chemical resistance are key factors. The gasket must be selected according to the flange size, system pressure and the nature of the transported medium. In solar systems, for example, the gasket must maintain integrity under prolonged exposure to heat and UV light, while in fuel systems, resistance to hydrocarbons is critical.

Technical parameters

The operating temperature range from -20°C to +180°C ensures suitability for both cold and hot applications. The PN 16 rating indicates that the gasket can handle up to 16 bar of nominal pressure. These parameters are crucial when matching the gasket to the system’s operational conditions, ensuring compatibility with the flange design and the fluid being transported.

Installation and connection

Installation requires careful alignment of the flange faces to avoid uneven compression of the gasket. The gasket should be placed centrally between the flange faces, ensuring no folds or twists. Bolts must be tightened evenly using a cross-tightening sequence to prevent warping and leakage. The nominal pressure rating must be matched to the system’s maximum operating pressure to avoid overloading the seal.

Common installation errors include using the wrong gasket thickness for the flange gap, reusing old gaskets after removal, and over-tightening bolts. These mistakes can lead to immediate or gradual failure of the seal. Always inspect the flange surfaces for debris or damage before installation. A clean, flat surface is essential for optimal sealing performance.

Compatibility and accessories

This flat gasket is compatible with standard PN 16 flanges made from steel, stainless steel or cast iron. It is suitable for use with flanged valves, pipe unions and fittings in oil, fuel and solar systems. When installing, ensure that the flange bore matches the gasket’s inner diameter. Additional components such as bolts, nuts and washers must be selected according to the system’s pressure and temperature requirements. No specific related products are required for this model.

Technical background for designers

The gasket operates by compressing between two flange faces to create a tight seal. The FPM (fluoropolymer) material provides high resistance to oils, fuels and solvents, making it ideal for aggressive media. Its flexibility allows it to conform to minor surface imperfections, enhancing the seal. In solar systems, the gasket must also resist UV degradation and thermal cycling. The service life is influenced by the frequency of thermal expansion, the chemical stability of the transported medium and the quality of the flange surfaces.

Service and operation

During operation, the gasket should be monitored for signs of wear, such as cracking, hardening or loss of elasticity. These changes can indicate exposure to incompatible chemicals or excessive temperatures. Regular visual inspections are recommended, especially after system shutdowns or during maintenance. There are no specified service intervals in the technical data. Any detected degradation should prompt replacement of the gasket to prevent leaks.

Frequently asked questions

Can this gasket be used in fuel storage tanks?
Yes, the FPM material is resistant to petroleum products, making it suitable for use in fuel storage and transfer systems.

Is this gasket compatible with stainless steel flanges?
Yes, it is compatible with stainless steel flanges provided the flange design and pressure rating match the PN 16 specification.

What is the minimum operating temperature for this gasket?
The gasket is rated for operation down to -20°C, making it suitable for cold environments.

Can this gasket be reused after disassembly?
No, once removed, the gasket should be replaced to ensure a secure and leak-free seal upon reassembly.