The coupling series KP with 4-corrugated bellows and two radial clamping hubs, is a version with shorter overall length in the Jakob metal bellows coupling range. This makes it particularly suitable for applications with minimal shaft spacing and limited installation conditions. In addition, the very high torsional rigidity values and the easy-to-install clamping hub design are worth mentioning. A low moment of inertia and good values for the permissible shaft misalignments and restoring forces complete the positive picture.
The multi-layer, made of certified stainless steel, metal bellows is characterized on the one hand by its high torsional rigidity and on the other by the compensation of axial, radial and lateral shaft offsets. Due to the shortened design and the resulting weight savings, there are other advantages such as lower moments of inertia.
The clamping hub is made of high-strength aluminum to achieve the lowest possible moment of inertia. The hubs are equipped with the innovative and service-friendly Easy-Clamp-System. It guarantees a simple, with enough fitting tolerance provided postponement. A single, radially accessible screw per hub provides the for torque transmission necessary preload force. Thanks to this simple, but very reliable connection, the couplings can be mounted in just a few easy steps, even in difficult installation conditions. The bellows-hub connection is made by the optimal and backlash-free brass-wire press-fit method. In contrast to adhesive joints, this joining process is absolutely unlimited for critical operating conditions (-40 ° C to + 200 ° C, chemicals) and the transmission torque of each individual bellows layer is safely introduced into the hub.
The KP series is available for nominal torques from 25 to 900 Nm with bore diameters from 10 to 75 mm.
Pharma and Medicine
Globe valves are granted USP Class VI certification
The Gemü globe valves 507, 550 and 554 with stainless steel valve bodies and PTFE seals from the valve specialist Gemü have been awarded approval in accordance with USP Class VI. They now comply with the prerequisites for application in the medical and pharmaceutical industries.
The U.S. Food and Drug Administration (FDA) divides the plastics used in the medical and pharmaceutical industries into six biocompatibility classes in the American Drugs and Medicines Register (USP). The most stringent of the six categories is the USP Class VI classification. It is the prerequisite for use of the materials in the medical and pharmaceutical industries.
With immediate effect, the Gemü globe valves 507, 550 and 554 with PTFE gland packing (Gemü code 5P) and stainless steel valve bodies (Gemü code 37, 34 or C2) now have certification in accordance with USP Class VI and are therefore approved for use in the medical and pharmaceutical industries.
New Profinet fieldbus interface
Tried and tested and versatile
Gemü is now expanding its tried and tested Gemü 1436 cPos positioner to include additional options in fieldbus environments. With the new Profinet fieldbus interface, the Gemü 1436 cPos positioner achieves a transmission rate up to 8 x higher. However, the option to perform all setting options easily via the fieldbus interface instead of having to enter these locally on the operating unit remains unchanged. In this way, the process data for controlling the valve position is also transmitted digitally. The new fieldbus type with Profinet also offers other practical benefits for the user, such as a more stable connection and additional configuration options.
In addition to the “standard” versions with analogue signals (0/4…20 mA) and the already available DeviceNet versions and Profibus DP, the electro-pneumatic positioner is now also available with Profinet, the industrial Ethernet standard, which will increasingly become the established standard in the near future in the automation sector.
Gemü is therefore expanding its product range in the area of positioners for pneumatically operated equipment. To achieve the widest range of control tasks, the valve specialist now offers a complete product range of positioners. In doing so, the individual series each have specific features and characteristics whereby a balance must always be struck between wide-ranging functionality and cost/benefits.