Rolling Diaphragm is a hat shaped reinforced rubber diaphragms. These diaphragms are specially designed to offer longer stroked in a cylinder. Due to longer stroke cycle controlled thrust can be generated which is advantageous in sensitive pneumatic applications. Rolling Diaphragms are generally reinforced with a fabric to offer maximum service life. The type of fabric depends on environment, life cycles and cost factors. Nylon® is the most commonly used reinforcement fabric.
Types of reinforcements for rolling diaphragms
- Cotton ( rarely used )
Advantage of Rolling Diaphragm
- It is accurate.
- long stroke length and no spring rate.
- Rolling diaphragms withstand high pressures.
- No lubrication required.
- Super sensitivity.