Ulman Dichtungstechnik Gmbh

Joachim Öhrle

Leon Radom

A laminate membrane having an elastomer body and a contact layer applied to the elastomer body. The contact layer is made of polytetrafluoroethylene (PTFE). A barrier layer configured as a permeation barrier is additionally provided, which is disposed between the contact layer and the elastomer body, or applied to the side of the contact layer that faces away from the elastomer body.

Laminate membrane

A composite diaphragm for diaphragm pumps comprises an elastomer body and a polytetrafluoroethylene (PTFE) coating on its back side. The elastomer body has a shape of a circular dish that has an edge region with a clamping area, a bottom and a flexible section of the diaphragm that connects the edge of the dish with the bottom. The flexible section of the diaphragm comprises a multitude of naps forming elevations on the elastomer backside of the elastomer body. The PTFE coating is a plane ring surface with the area of the flexible section of the diaphragm.

Composite diaphragm for diaphragm pumps

A composite diaphragm for diaphragm pumps comprises an elastomer body and a polytetrafluoroethylene (PFTE) coating on its back side. The elastomer body has a shape of a circular dish that has an edge region with a clamping area, a bottom and a flexible section of the diaphragm that connects the edge of the dish with the bottom. The flexible section of the diaphragm comprises a multitude of naps forming elevations on the coated side of the elastomer body. The PFTE coating is a plane ring surface with the area of the flexible section of the diaphragm.

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Herrenberg, Germany

Joachim Öhrle