Safe installation and commissioning of diaphragm valves with GEMÜ PPF multifunction adapters

GEMÜ PPF (Pressure, Passivation, Flushing) multifunction adapters can be used to prevent the penetration of foreign particles when installing diaphragm valves, resulting in enormous cost savings.

It is a basic fact that all installation work involving piping, such as the installation of valves, poses a risk of contamination. The entry of foreign matter or contaminants into piping systems can lead to the need to discard an entire batch of medicine, which can have a substantial impact on business. Even more serious, however, is the risk of contamination not being detected in time which could lead to patients being harmed.

Apart from the human risk, there is the added economic risk that foreign matter can cause plant components such as pumps and heat exchangers to become blocked or even damaged, resulting in interruptions to the process and impacting scheduling.  


With static GEMÜ PPF (Pressure, Passivation, Flushing) multifunction adapters in 1.4435 stainless steel, the penetration of foreign particles during the installation of diaphragm valves is prevented. Immediately following disassembly of the actuator and diaphragm, the adapter is mounted on the valve body, thereby offering protection for the seat. The GEMÜ PPF must be removed after installation is complete but before sterilization of the plant. The sealing over the weir and to the outside is created by an EPDM seal, which is approved according to FDA and USP Class VI. The fixing method, as we know from diaphragm valves, uses four screws, or for a diaphragm size 100, eight screws. After the multifunction adapter has been mounted on the valve body, this can be used as a weld gas pipeline for welding the body. The subsequent introduction or conveying of the passivation media to protect the surface against corrosion can also be performed via an adapter.

For an endoscopic examination, a camera can be introduced into the piping system via the GEMÜ PPF connections, just as a tube can be connected for flushing. Because the adapter is constructed using the full spigot diameter, this design enables an optimal rinsing process. This can take place in both flow directions. A final pressure test can be performed with GEMÜ PPF up to an operating pressure of 16 bar.

The reusable multifunction adapters have been designed for various membrane sizes and are available from diaphragm sizes MG 8 to MG 100. This enables GEMÜ to offer a safe, convenient solution to prevent contamination or the penetration of foreign matter when installing valves in piping.

Über die GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG

The GEMÜ Group develops and manufactures valves, measurement and control systems for liquids, vapours and gases. GEMÜ is a global market leader when it comes to solutions for sterile applications.

The globally focused, independent family-owned enterprise was founded in 1964. In 2011, Gert Müller took over as Managing Partner together with his cousin Stephan Müller, becoming the second generation to run the company. The Group achieved a turnover of over €330 million in 2019 and currently employs over 1900 members of staff worldwide, over 1100 of whom are in Germany. They have six manufacturing locations: Germany, Switzerland and France, as well as China, Brazil and the USA. Their worldwide marketing is carried out across 27 subsidiaries, coordinated from Germany. Thanks to a large network of commercial partners, GEMÜ is now active in over 50 countries on all continents.

Please visit www.gemu-group.com for further information.

Firmenkontakt und Herausgeber der Meldung:

GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG
Fritz-Müller-Straße 6-8
74653 Ingelfingen-Criesbach
Telefon: +49 (7940) 123-0
Telefax: +49 (7940) 123-192
http://www.gemu-group.com

Ansprechpartner:
Ivona Meißner
Corporate Communication
Telefon: +49 (7940) 123-708
Fax: +49 (7940) 123-487
E-Mail: ivona.meissner@gemue.de
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