Type 5 : An SSSV with unique control characteristics which differentiate it from other SSSVs. The SCSSV, the Velocity Type SSCSV and the Low Tubing Pressure Type SSCSV areexamples of SSSV types. (Spec 14A)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}