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Aavolyn # 60-22022-017, AVA47 TY220 Tangent to Rod Packing Ring

This style of packing ring is used in higher pressure applications where the seal ring is made from a thermoplastic material, including filled PTFE. At these pressure ranges a backup ring is required to support the sealing ring at the bore to prevent extrusion. The packing groove is not wide enough to utilize the Type 210 pair of rings with a backup. Therefore one ring replaces the normal pair and serves as a radial and tangent combined.






Specifications

Cylinder/ Rod Diameter
2.500

Material
AVA47

Material Description
AVA47 provides exceptional long life in those applications where there are hydrocarbons or liquids flowing intermittently in the gas. Standard carbon filled PTFE rings depend on riding over a coating of PTFE on the rod or the cylinder to provide minimal ring wear. In applications where solids or liquids are present and tend to remove the coating provided by standard carbon filled, AVA47 is the material of choice. By adding anti-friction materials, excellent ring life is achieved along with eliminating wear on the piston rod, piston or cylinder wall.
Recommended Applications: Lubricated Service, Wet CO2, Natural Gas, Vinyl Chloride

AVA47 Application Profile.
AAVOLYN's AVA47 PTFE blend profiled by E.I. duPont.

AVA47 filled PTFE - This proprietary material is ideally suited for lubricated and mini-lube service, especially where solids and liquids are prevalent in the gas stream. Piston rings, rider rings and rod packing manufactured from AVA47 have outperformed the standard material available in the Natural Gas Market today.