Overview: The document provides technical specifications for PTFE expansion joints with 2 convolutes, designed to compensate for vibrations and thermal expansion in production lines. These joints are noted for their flexibility and ability to handle high working pressures.

Specifications: The expansion joints are available in various diameters (DN) with specific measurements for total length (L), extension/compression, misalignment, angular deflection, and vacuum resistance. The joints are constructed with PTFE lining, available in virgin or conductive forms, and feature a loose-loose flange design made from carbon or stainless steel.

Performance Parameters: The document details the maximum pressure and temperature resistance, as well as vacuum resistance at different temperatures. The joints are capable of handling pressures up to 10^5 Pa at 20°C, with decreasing resistance at higher temperatures.

Design Features: The expansion joints include options for different flange types (2 or 3 ears) and are equipped with earthing studs and final painting. Special requests for different lining thicknesses and flange connections can be accommodated.

Key Data from Tables: The tables provide detailed measurements for each nominal diameter, including total length, extension/compression limits, misalignment, angular deflection, and weight. The tables also specify the number and size of screws required for installation.

Additional Information: The document references standards DIN-EJ2-2009-EN and DIN-EJ2N-2009-EN, indicating compliance with specific engineering norms. The expansion joints are suitable for various industrial applications requiring reliable compensation for mechanical and thermal movements.