GEMÜ has developed a new EPDM diaphragm for use at high temperatures and steam for the pharmaceutical and biotechnological industries. The diaphragms feature an improved thermal load capacity, and an additional sealing bead has been integrated on the top, which further improves external sealing. The new diaphragm is FDA-conforming in accordance with title 21 paragraph 177.2600. It was tested by an independent institute in accordance with USP Class VI, is free from animal ingredients and is ROHS conform. At the same time, the design places emphasis on meeting the demands made on the EHEDG-certified original GEMÜ sealing system. The compound is peroxide cured and all compounding is carried out according to the strict quality specifications of GEMÜ. The diaphragm (given an order designation “17“) is available in all sizes MG 8 – 100 (DN 4 – 100). The size 8 diaphragm is pushed into the compressor as cur-rent designs, the diaphragm sizes 10 – 100 are screwed positively into the compressor with a threaded pin. The new diaphragm fits in to the existing modular valve system and can be used and retrofitted for all GEMÜ diaphragm valves.