Depending on the application, service units typically consist of a wide variety of functional modules, such as a manual pressurization and exhaust valve, a filter regulator and a branch module. At Festo, the most common combinations in the MS series are available from stock pre-assembled. With the MSB Configurator of the MS series, complex service units can also be individually configured step by step, ideal for any application. These units are completely assembled, pressure-tested and thus delivered ready for installation. As part of the Festo core product range, these individual configurations can also be handled worldwide and are therefore quickly available. They are available in three sizes MS4, MS6 and MS9 for a wide flow rate range. Depending on the configuration, they are suitable for use in potentially explosive areas of zones 1, 2, 21 and 22 as well as with UL approval.