Grade TM17 PTFE Diaphragm
ITT Pure-Flo has developed a modified PTFE diaphragm to better withstand the critical process protocols associated with the Pharmaceutical and Bioprocessing industries, resulting in increased performance and longer life.
Specifications
Type:
TM17
Size Range:
BT–6” (DN6 - DN150)
Temperature Rating:
-4°F to 329°F (-20°C to 165°C)
Pressure Rating:
See Pressure & Temperature chart on page 11
Material (2 Piece Construction):
Product Contact Surface: Modified PTFE with PPVE*
Backing Cushion: Grade 17 EPDM
Regulatory Compliance:
21CFR 177.1550 (a)
USP28 Class VI, Chapter <87>, <88>
21CFR177.2600 (Backing cushion)
*TM17 Material is considered a homopolymer according to ISO
12086, ASTM D-4894 due to < 1% perfluoropropyl vinyl ether (PPVE) modification
Product Options
The enhanced material of the TM17 diaphragm retains all of industry proven advantages of conventional PTFE with several significant enhancements.
Overall improved sealing and flex life due to:
• Reduced cold flow
• Reduced permanent deformation under cyclic load
• Greater dimensional stability
• Reduced embrittlement
• Greater crack resistance
Improved steam life due to:
• Reduced voids
• Reduced permeation
• Reduced permanent deformation under cyclic load
• Reduced embrittlement
• Greater crack resistance
Improved cleanability due to:
• Reduced permeation
• Reduced voids, pore free surface
• Non-stick properties
