The CONTROLLER BACK graphite gaskets are specifically designed to ensure seat sealing when O-Rings or Lip Seals cannot be used. This sealing set consists of expanded graphite rings with variable-density energized rings, offering reliable solutions for a wide range of applications.
- Variable-density expanded graphite gasket with anti-extrusion rings
- Expanded mineral graphite, compliant with EN14772 Section 6.7
- Metal insert in A182 F316 (other materials available)
The CONTROLLER BACK series offers various models to meet all technical requirements. These gaskets are configured with different materials and densities to ensure varying compressions, which can range from 10–20% depending on the specific needs of the application.
The expanded mineral graphite used is resistant to a wide pH range and can operate at both low and high temperatures. However, it is important to consider some limitations and exclusions, such as a maximum operating temperature of 600°C, with a peak of 650°C for short exposures, and incompatibility with strong oxidizing agents.
CONTROLLER BACK gaskets are specifically designed for use on ball valve seats operating at high temperatures. They are particularly suitable where a reliable and resistant seal is required at both low and high pressures. For further customized sealing solutions, Carrara’s technical department is available to provide assistance and advice.
