Union nut - DIN 11864

The WIKA 990.18, 990.19, 990.20 and 990.21 sterile connection diaphragm seals with threaded connection are particularly suited for use in the food industry. The diaphragm seals can withstand the cleaning vapour temperatures occurring in the SIP processes and thus ensure a sterile connection between the medium to be measured and the diaphragm seal. Mounting of the diaphragm seal to the measuring instrument may be made via a direct connection, for high temperatures via a cooling element or via a flexible capillary. For the material selection, WIKA offers a variety of solutions, in which the upper body of the diaphragm seal and the wetted parts can be made of identical or different materials. The wetted parts can, as an option, be electropolished. Applications Food and beverage production For dairies, dairy products Breweries Soft drink production

The WIKA 990.51 diaphragm seal with aseptic connection per DIN 11864 is ideally suited to fulfil the high standard requirements of sanitary applications. It can be optimally integrated into aseptic processes, meets all hygienic design requirements and is EHEDG certified. The diaphragm seal systems can withstand the cleaning vapour temperatures occurring in the SIP processes and thus ensure a sterile connection between the medium to be measured and the diaphragm seal. Assembly of the diaphragm seal and measuring instrument is made via a direct assembly as standard or optionally via a cooling element or a flexible capillary. For the material selection, WIKA offers a variety of solutions, in which the upper body and the diaphragm are made of identical materials. Stainless steel 316L (1.4435) is used as standard material. Other special materials are available on request. Measuring systems with the WIKA 990.51 WIKA diaphragm seal are successfully used in pharmaceutical, biotechnology, aseptic food production and life science industries.