Novaphit® SSTC is a high-quality gasket sheet material made from expanded graphite and reinforced with an acid-resistant stainless steel metal insert. It is manufactured by Frenzelit Werke GmbH (Germany) and is widely recognized as a premium industrial gasket material for applications involving high pressure, high temperature, and fluctuating mechanical loads.
What is Novaphit® SSTC
- Material: High-purity expanded graphite (≥ 98–99%) reinforced with an acid-resistant stainless steel insert (AISI 316L / 1.4404)
- Manufacturer / Brand: Frenzelit (a leading specialist in industrial gasket materials)
- Product Type: Gasket sheet material for sealing flanges, pipe joints, valves, and other industrial connections
Key Technical Characteristics
Operating temperature range
- Approximately −200 °C to +550 °C
- Some sources indicate resistance up to ~650 °C, depending on application conditions
Operating pressure
- Capable of withstanding high pressures, typically up to ~200–250 bar, depending on gasket thickness, installation, and operating conditions
Chemical resistance
- Highly resistant to a wide range of acids, alkalis, oils, and industrial process media, making it suitable for chemical and petrochemical applications
Structure and advantages
- The 3D stainless steel insert ensures:
- Improved pressure distribution
- High recovery and resilience
- Superior sealing performance compared to standard graphite gaskets
- Certain variants comply with stringent emission and sealing standards such as TA Luft and VDI 2440
Dimensions & thickness
- Common sheet sizes:
- 1000 × 1000 mm
- 1500 × 1500 mm
- Typical thickness options:
- 1.0 mm, 1.5 mm, 2.0 mm, 3.0 mm
Typical Applications
Novaphit® SSTC is commonly used as a sealing gasket in:
- High-pressure flanged pipe connections
- Chemical and petrochemical processing plants
- Steam systems, boilers, and turbines
- Valves, pumps, and other process equipment
- Applications requiring a combination of high temperature resistance, high pressure capability, and chemical stability
Summary
In short, Novaphit® SSTC is a high-performance industrial gasket material designed for extreme service conditions. Thanks to its expanded graphite base combined with a stainless steel reinforcement, it delivers superior sealing reliability, mechanical stability, and durability, outperforming conventional graphite gasket materials in demanding applications.