The highly durable and long lasting PTFE vacuum seals with FFKM sealing ring achieve maximum tightness and save on long-term spare parts costs. The combination of both materials provides excellent resistance, even in applications with very aggressive solutions or acids such as aqua regia, with the best seal properties at the same time.

• Special PTFE spare seal (with FFKM sealing ring)
• Highest chemical resistance
• Long running time without abrasion
• Highest density
• FDA compliant