Georg Fischer Wavin Ag

Georg Fischer Rohrleitungssysteme Ag

Oliver Trefz

Dirk Alexander Petry

Joerg Wermelinger

Jonas Huessy

Peter Haug

Flavio Cantoni

Thomas Helmbold

Dirk Petry

Ozan Ufuk Topcuogullari

Jörg Wermelinger

Jonas Hüssy

A pressure control valve for controlling the pressure of gaseous and liquid media in pipelines, preferably in the drinking water field, containing: a main valve to which the pipeline is connected, wherein the main valve has a main valve housing, a guide cylinder, a valve element, channels for conducting the medium and a spring element, the valve element and the guide cylinder are arranged concentrically with respect to one another and the valve element is movably arranged on the guide cylinder; a control block, wherein the control block has channels for supplying the medium to the main valve and to the pilot valve; and a pilot valve for controlling the inspection pressure, wherein the pilot valve likewise has channels for guiding the medium, wherein the main valve, the control block and the pilot valve are medium-tightly interconnected by means of plug connections.

Pressure control valve

A pipe clamp for a main pipe conveying a medium. The pipe clamp includes a saddle member and bearing elements, wherein the bearing elements are arranged on the saddle member. The pipe clamp further includes a tension unit, wherein the tension unit comprises at least one band for encircling the main pipe, a band linkage, and a clamping lever. The band linkage and the clamping lever are each arranged at one end of the at least one band and are opposite one another. An extension is arranged on the clamping lever, and the extension is configured to be removed from the clamping lever after the tension unit is firmly clamped on the main pipe.

Pipe clamp

A valve assembly () comprising a valve housing (), a stem () that is disposed perpendicular to the direction of flow within the valve housing (), and a blocking member () which can be movably connected to the stem (). The stem () is provided with a device () for limiting torque.

Valve assembly comprising a torque limiter

Growing community of inventors

Bonndorf, Germany

Oliver Trefz