Fabric Selection for Diaphragm

Fabric Selection for Diaphragm

A key component of Diaphragms is the fabric reinforcement selected to ensure the diaphragm will withstand the application pressure and cycle life expectations 

Diatax has developed a comprehensive selection of standard fabric styles, each with specific physical characteristics that are selected based on weave patterns, tensile strength, form-ability and chemical and heat resistance capabilities, as well as other variables.

When selecting the fabric to be used to reinforce the diaphragm, the following factors are important:

  • Diaphragm pulse rate effect
  • Risk of tearing of the fabric due to flange sealing conditions
  • Required balance between sensitivity and strength of the fabric
  • Environmental effects on the fabric, i.e. flammability and temperature

Widest Range

Fabric Selection For Diaphragm​

Diatax Offers wide range of fabrics used for rubber Reinforcement in diaphragms

  • Polyester
  • Cotton
  • Nylon
  • Silk
  • Nomex
  • Fiberglass
  • Polyester Cotton

Chemical Resistance Properties

Property Silk Cotton Nylon Polyester Nomex
Relative Tensile Strength Moderate Moderate Very High High High
Resistance to:
Heat Degradation Low Good Very Good Very Good Excellent
Mildew Fair Poor-Fair Good Good Excellent
Alkalis Poor Good Good Fair Good
Weak Acids Fair Good Fair Good Fair
Strong Acids Poor Poor Poor Fair-Good Poor
Oxidizing Agents Poor Fair Fair Good Poor
Organic Solvents Poor Excellent Very Good Good Good
Relative Cost Mod-High Moderate Moderate Moderate High