EFFBE has selected knitted, warp and weft fabrics as mechanical reinforcements for the manufacture of its diaphragms. These textiles provide both resistance to pressure (burst strength) and anti-tear safety.
The parameters for recommending the technical textile to be used are the stroke and shape of the diaphragm and the elastomer chosen, as well as the extreme working temperatures and the chemical environments to which the future diaphragm will be exposed.
Polyester
Polyesters represent a balanced choice between performance and cost. Polyester fabrics are light, flexible and strong.
Polyamide
Polyamide fabrics offer very high resistance, enabling the production of strong diaphragms that respond perfectly to very high pressures and temperature ranges.
Aramid
Aramids are fabrics with extremely high thermal stability. They are generally used when diaphragms are operated in extreme conditions. These fabrics are also the most suitable for surface modification to improve adhesion with the various rubbers.
Cellulose
Cellulosic fabrics are materials historically known for their flexibility and longevity, which are partly responsible for EFFBE’s historic success. However, their use is restricted by their limited resistance to extreme conditions.