This packing is also known as vee packing, stack packing, or duct & rubber. This packing has a male, female, and a series of intermediate rings (V-rings), which can be manufactured from different materials or a combination of different materials making a set. These sets have to be compressed in housing for the seal to operate. Sets can be supplied in an endless or split design. They are normally supplied from molded rubber & fabric but can be supplied in all rubber, Teflon, and urethane. It can be supplied in different compounds for applications.

Composite seal rubber energizer with teflon
all rubber back to back v pack
robust heavy duty v packing
v packing pure teflon