V-type sealing ring is made of PTFE or composite materials, such as PTFE- graphite, PTFE with wire, PTFE with carbide, asbestos - graphite and so on.V-type sealing ring adopts machine tool turning processing or die pressing and other ways, the form is divided into two kinds of each opening, the sealing ring with no opening has good sealing performance.Do not open the sealing ring according to the installation of convenience, but stagger the gap placed according to the installation.
PTFE has good lubricity, good resistance to chemical corrosion, low friction coefficient and wide operating temperature range, generally used for temperatures below 230.Usually made of v-shaped ring, v-shaped machining forming 60 (general occasions) and 90 (high-pressure occasions) of the structure.When the operating temperature is higher than 230 choose graphite packing, or choose to add extended bonnet.Different combinations of filler materials and types make it more widely used.