SISTO B, TFM / EPDM-bonded Diaphragm
The TFM’s excellent chemical and thermal properties make this diaphragm type the first choice for applications with chemically aggressive media and high temperatures. This diaphragm type is also recommended for use in media which need to be protected against rubber abrasion and fluids containing oils and greases. As the EPDM rubber is firmly bonded to a TFM film featuring improved mechanical properties and lower permeability compared to conventional PTFE.
As the rubber is fully covered by the TFM sheet, even mechanical damage to the sheet does not result in cavity formation and therefore to undefined spaces which cannot be cleaned. This composite diaphragm is vacuum-resistant.
|Sizes||DN6 – DN50|
|Temp. range||-30⁰C to 120⁰C (short-term 140⁰C)|
|Material||EPDM Rubber bonded to TFM film|
|Certificates||USP Class VI, 3.1b, FDA|
Tightening torques chart
|Diapphragm||MD (Membrane Diameter)|
|EPDM, TFM bonded||1,5||4,5||6||8||12||15||25||30||45||30|
|PTFE, TFM (2-piece)||2||6||8||10||15||18||28||35||50||35|
Datasheet SISTO B Diaphragms
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