Elastomeric rolling diaphragm rubber seal
The long-stroke rubber rolling diaphragm which is everted during installation is to be considered a special case among dished diaphragms. The effective stroke is constrained by the deep drawing nature of the fabric with the style of tissue reinforcement. Rolling diaphragms allow to have pressure only on the molding side of the diaphragm.
Elastomeric rolling diaphragms are developed according to your needs in rubber coated fabric, from fabric with fabric reinforcement or only rubber.
The housing will accommodate rolling diaphragms on the outside, and the piston on the inside. This provides an efficient diameter that is virtually independent of the stroke, constant. The rolling diaphragms still need a pressure differential to the rolling convolution, much as the rolling diaphragms do, otherwise the strain would have everted them.
Some of the elastomers for the manufacturing of Elastomeric rolling diaphragms include: Nitrile, Silicone (VMQ), Chloroprene (CR), Fluorocarbon (FKM), Monomeric Ethylene Propylene Diene (EPDM), Polyacryate (ACM), Perfluoroelastomers (FFKM), Hydrogenated nitrile (HNBR)
We can supply as well Elastomeric rolling diaphragms with 'Special' cloth reinforcement, often available from stock, having the following fabrics as reinforcement:
Nylon/ Polyester/ Cotton/ Nomex
Elastomeric rolling diaphragm rubber seal
Elastomeric rolling diaphragm rubber seal
For assistance, contact SWKS Kris@tjswks.com
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