GEMÜR480 Victorian unprocessed parts (picture source: GEMÜGebr. Müller Apparatebau GmbH & Co. KG)
When redesigning the GEMÜR480 Victoria series, professional teams from the design, product management, quality management and production departments improved many technical specifications and further expanded GEMÜ’s manufacturing capabilities. Thanks to investments in in-house processing and coating expertise, the company now has greater control over the production process where quality is critical.
In-house machining within narrow mold and position tolerances In our highly automated valve production facility at GEMÜValves China, the valve body is milled in a clamping position. This can achieve precise shape and position tolerances. In addition, because GEMÜ processes the butterfly valve internally, it can better control the quality of the butterfly valve. Another advantage of in-house manufacturing is that delivery times are more flexible, which means that availability can be better controlled.
Disc design can achieve a higher Kv value. Due to its flow optimization and disc design, the redesigned R480 Victoria butterfly valve can achieve a higher flow coefficient. This reduces pressure loss and makes the butterfly valve more energy efficient. The continuous compression of valves on shafts and bearings means that they require lower torque to save operating costs. In addition, the PTFE-coated steel bushings in the shaft and shaft area further reduce torque, thereby helping to save costs.
High-quality coatings for robust valves Having high-quality coatings does not start with selecting or applying coatings. Its pretreatment (such as sandblasting and heating) and robotics are also key factors in the entire coating process. Using the rotary sintering method, the valve body is immersed in a basin with epoxy powder. The powder melts onto the preheated valve body, so it connects to each other to form a durable surface.
The thickness of the valve is at least 250 µm, even in the bushing area, to ensure consistent corrosion protection in accordance with ISO 12944-6 C5M. Compared with static powder coatings, the use of the vortex sintering method greatly improves the adhesion of the coating to metal.
Reliable and intelligent-GEMÜ butterfly valve is ready for Industry 4.0. Another feature of the R480 Victoria series is the technical optimization of the bushing to improve sealing. Containing other materials in the valve seat, shaft and shaft area, as well as grooves for reliable bushing in the flow direction, can improve the sealing and sliding resistance of the butterfly valve. Even during installation, the fixing points of the bushing on the valve body make it easy to replace the bushing and read the bushing material.
In addition, due to the inclination of the bushing, it is easy to replace parts without error when performing maintenance work or replacing parts later. The R480 Victoria series can be used as a similar alternative to the previous 480 Victoria series because these valves have the same actuator flange and the same installation length.
In general, the new butterfly valves not only stand out because of their easy maintenance and replaceable components, but mainly because they have higher safety and efficiency. However, with the integration of RFID chips, GEMÜ has taken a step forward and is ready for Industry 4.0.
Through CONEXO, the company provides an RFID system architecture that can clearly identify vulnerable parts, perform paperless maintenance and process documents. The CONEXO application guides maintenance technicians step by step through a fully customizable maintenance workflow.
The new R480 Victoria series has a variety of nominal sizes, from DN 50 to DN 300, with many new features and can now be ordered from GEMÜ. The new series has the following versions:
Valve expert GEMÜ provided the GEMÜR470 Tugela series in wafer version, with nominal sizes ranging from DN 50 to DN 600, effective immediately.
In the dental industry, consumables such as composite materials are packed into disposable syringes with Luer Lock attachments, or into smaller unit-dose packages. These flowable filler materials made of plastic and glass generally have high abrasiveness, high viscosity and stringiness. This puts high demands on the metering and filling system. The material is used in the dental industry, for example for sealing, restoration or core.
Post time: Apr-29-2021