The PTFE envelope is made in TFM™ 1600 and features a 4 mm inner diffusion barrier. The stainless steel (standard 1.4571) corrugated ring features a pitch of 3 mm and cross-sectional flat area at the inner diameter. The design complies with the specifications defined by the German chemical industry.
1.4571 (other materials on request)
PTFE envelope gasket PW-I
200 °C (short-term up to 230 °C)
max. pressure (40 bar) and max. temperature (200 °C) are permitted to occur simultaneously.
DIN 2690 / ANSI / EN 1514
Special dimensions available on request