The standard one piece piston ring is utilized by itself or in combination to seal gases and
liquids in a variety of applications. Ring design and materials vary based on the product
sealed, temperature, pressure, and condition of the service. AAVOLYN Engineers have
experience in designing piston rings for all applications from standard air using one piece
angle cut rings to high pressure specialized gas services where pressure balancing and
special materials are required. Proper clearance design and selection of ring material are
critical to provide quality performance and extended ring life.
The standard one piece piston ring is utilized by itself or in combination to seal gases and
liquids in a variety of applications. Ring design and materials vary based on the product
sealed, temperature, pressure, and condition of the service. AAVOLYN Engineers have
experience in designing piston rings for all applications from standard air using one piece
angle cut rings to high pressure specialized gas services where pressure balancing and
special materials are required. Proper clearance design and selection of ring material are
critical to provide quality performance and extended ring life.
Pressure balancing in both packing and piston rings maximizes ring life. By minimizing the force on the sealing surface, ring wear is reduced and the forces acting on the seal are stabilized. The TYPE 480, two piece piston ring provides excellent performance in discharge pressures over 250 psi.
The standard one piece piston ring is utilized by itself or in combination to seal gases and liquids in a variety of applications. Ring design and materials vary based on the product sealed, temperature, pressure, and condition of the service. AAVOLYN Engineers have experience in designing piston rings for all applications from standard air using one piece angle cut rings to high pressure specialized gas services where pressure balancing and special materials are required. Proper clearance design and selection of ring material are critical to provide quality performance and extended ring life.
Solid riders or wear rings, AAVOLYN Type 450, are required where the ring groove on the piston travels out into the valve area or cylinder counterbore. The solid, stretch on ring is designed to stretch over the piston diameter and then fit tightly on the ring groove. Proper strain and memory considerations are important to ensure that the solid ring remains tightly on the piston during operating temperatures and pressures. Pressure relief designs are available in high temperature applications where riders have a tendency to come loose on the piston in service. This allows gas, trapped under the ring, to bleed away, thus eliminating rapid wear of the ring and possible breakage.
AAVOLYN TY432 one piece angle cut rider ring, available in a filled
PTFE blend, PEEK or Bronze, is offered with the option of side and/or
face grooves.
The TY436 two piece butt cut rider ring supports the weight of the piston
and prevents contact with the cylinder wall. This style ring specified by
OEM's is available in PEEK?, PTFE, and Bronze.
The AAVOLYN TY425 two piece angle cut piston ring conforms better to the
cylinder wall during initial start up of the compressor. Used extensively
in natural gas compressors, this style ring has replaced the one piece
piston ring because of its conformity.
