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GEMÜ diaphragms

Safe, reliable, robust

GEMÜ manufactures, installs and delivers diaphragms for full bore diaphragm valves and diaphragm valves with a sealing weir.

Top GEMÜ quality for all sterile and industrial applications

The following applies in relation to all original GEMÜ diaphragms:

  • Production and quality control in accordance with high GEMÜ standards
  • Special compound in accordance with original GEMÜ specifications and in-house development of the compound
  • Testing on our own test rigs, in accordance with the requirements of the pharmaceutical sector among others
  • Manufacture by the GEMÜ group or through certified suppliers with connections to GEMÜ going back many years

Practical test passed

In addition to successful internal and external audits, we also keep scoring top marks with regard to tightness and process reliability during operation. The Bioprocessing Institute can confirm, for example, that GEMÜ diaphragms had a longer service life than other makes in a neutral test environment during the test period.

For sterile and hygienic applications: Certified seal system

GEMÜ developed its seal system for diaphragm valves with a sealing weir up to DN100 over three decades ago and the system has also been EHEDG-certified since 2006. A circular sealing bead in the valve body creates a defined external sealing point. This minimizes the ring-shaped gap between the diaphragm and the valve body and makes this seal system particularly suitable for applications in the pharmaceutical, biotechnology and cosmetics industries.

Available materials: EPDM, PTFE (no industrial standard but improved composition)/EPDM; further materials depending on the scope of application

Brochure "Diaphragms for Sterile Applications"

Traceability of GEMÜ diaphragms

GEMÜ diaphragms for diaphragm valves in the weir-type design can be ordered individually packed with an inspection certificate and thus traced. With our GEMÜ CONEXO system, we also offer captive identification – even after removal from the packaging or from the warehouse. This involves the relevant diaphragm being equipped with an RFID chip. IT infrastructure comprising a mobile and stationary software solution is also required. Thanks to serialisation, the components are uniquely traceable and can be identified in the plant at any time using an RFID reader.

For abrasive and contaminated media: Full bore diaphragm valves and lined diaphragm valves

GEMÜ full bore diaphragm valves and lined diaphragm valves from GEMÜ
GEMÜ full bore diaphragm valves and lined diaphragm valves from GEMÜ

The minimal deadleg internal contour and the support of the diaphragm by a compressor provides optimum flow conditions and the best seal properties on GEMÜ full bore diaphragm valves. Lined diaphragm valves from GEMÜ combined with a suitable seal material offer even better resistance to numerous lyes, acids and other corrosive, abrasive and contaminated media.

Available materials: NBR, CR, natural rubber and EPDM

Further information on storing diaphragms and their service life

Flyer in English

Further information on materials and sealing materials for the processing industry and industrial water treatment

Flyer in German

Flyer in English