Passy Muir PMV Secure-It® Valve, Swallowing and Speaking Designed with a small ring that allows the PMV Secure-It to attach from the PMV to the trach tie to prevent valve loss. Each PMV 2000, PMV 2001 and PMV 2020 comes packaged with one PMV® Secure-It®. The PMV Secure-It is also available in packets of five. Use of the PMV Secure-It is optional.