SMC Corporation VVFS200022A-2 Interface Check Spacer

SMC VVFS2000-22A-2 Interface Check Spacer is a double check spacer accessory for the VFS2000 family of 4- and 5-port pilot-operated solenoid valves. The -2 designation identifies the non plug-in type configuration used with VVFS2000-22A-2 in non plug-in installations. When paired with a built-in double check valve, this spacer enables a pneumatic cylinder to hold an intermediate position for an extended period, helping prevent movement caused by leakage between valve states. It is intended to prevent unintended cylinder drift in the intermediate stroke and can improve stopping accuracy in circuits that rely on precise intermediate positioning. Important operating notes: excessive exhaust restriction can degrade intermediate stopping accuracy, and double check spacer should not be combined with external pilots. This accessory is part of SMC's VVFS2000 interface options for VFS2000 4/5-port valves, providing a dedicated solution for maintaining a set cylinder position in compact pneumatic circuits.