The SAL (Sanitary Airlock) is a low capacity rotary valve with a highly polished surface on both the inside and outside. The SAL is specially designed for metering purposes in applications where strict hygienic standards are required. Ease of operation and cleaning make the SAL very suitable for use in the pharmaceutical, food and chemical industries. The complete valve can be dismantled for inspection and cleaned in a matter of minutes, thus reducing eventual downtime and production loss. The SAL is available in 5 sizes: DN50, DN65, DN80, DN100 and DN150, with capacities of 0.07, 0.13, 0.25, 0.8 and 2.5 litre per revolution at 100% filling. Larger sizes are available on request.