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Diaphragms Diaphragm

Flexible sealing elements for dynamic applications

Elastomer Diaphragms are flexible sealing elements that reliably separate two spaces whilst allowing for reciprocating movement. This movement takes place perpendicular to the clamping plane.

The diaphragms are assembled from individual components in our production facility and can be customised as required (according to customer specifications), for example with or without fabric reinforcement, thermoplastic film such as PTFE, and a metal core. We offer all standard material combinations, including those compliant with KTW, FDA and EN 16421 (formerly W270).

What are the advantages of our diaphragms?
  • Low-maintenance: Diaphragms require no lubrication and are designed for low-maintenance operation.
  • Low wear: Thin-walled designs operate with virtually no friction and without start-up forces.
  • Long service life: We enable the design of your unit to be tailored to the specific application. Cost-effective and with a long service life.
  • Flexible applications: Diaphragms can be designed for different types of movement and applications.
  • Customisable: Materials, fabric reinforcements, PTFE films and metal cores can be combined to meet specific requirements.

Do you need a custom solution? Together, we’ll develop a product tailored precisely to your needs.

Diaphragms

Fields of application
static
dynamic
single acting
double acting
Linear
Rotating
oszilating
Main use pump industry, process measurement and control technology, pneumatic actuators
Materials elastomers, fabric reinforcement, metal, PTFE

Technical values

Materials elastomer, fabric, metal
Pressure up to 0,07 MPa
Temperature -50°C / +120°C (material dependent)
Speed application dependent
Maximum values temperature, speed and pressure are simultaneously not applicable! The values vary in dependence of material and media. For technical queries please contact our application consultants – we have the right solution for you. 
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More Diaphragms

2025-12-09_Membranen bearbeitet vwi - Kopie

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2024-10-18_Composite_EN
Further to PTFE Composite Diaphragm
Ms. Jiajia Xu
Your contact person for

Technology - General sealing topics, special constructions

Ms. Jiajia Xu
Project Management
Do you have any questions, ideas, or suggestions? We are more than happy to assist you with advice. In person, over the phone, or digitally.