The separating inserts with front diaphragm are designed to separate the media being measured from the pressure gauge or the pressure transmitter when measuring aggressive media, media with high viscosity or media containing solid particles, or for operations where there are increased hygiene requirements that require regular cleaning of the measuring point. The overall design and measurement method ensures quick assembly and easy cleaning. The parts that come into contact with the medium being measured are made of stainless steel as standard or also of special materials according to the specific conditions. The separating inserts with front diaphragm are designed to be mounted with a pressure gauge or pressure sensor and are suitable for use in all areas of industry, especially process engineering, food industry, chemical and petrochemical branches.