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Piston Rings and Rider Rings


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Bronze Piston Ring

TY410 Angle Cut Piston Rings


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.
One Piece Piston Ring

TY411 Step Cut Piston Rings


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.
TY480 Pressure Balanced Piston Ring

TY480 Angle Cut Piston Rings


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.

  • Standard seal ring
  • 2 Piece angle cut
  • One Piece Piston Ring

    TY412 Butt Cut Piston Rings


    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.

  • Standard seal ring
  • 1 Piece Butt cut
  • TY450 Solid Rider Ring

    TY450 Solid Rider Rings


    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.
    TY432 Angle Cut Rider Rings

    TY432 Angle Cut Rider Rings


    AAVOLYN TY432 one piece angle cut rider ring, available in a filled teflon® blend, PEEK or Bronze, is offered with the option of side and/or face grooves.
    TY425 Angle Cut Piston Rings

    TY420 Segmental Step Cut Piston Rings


    Aavolyn TY420 3 piece segmental step cut piston ring is furnished with or without stainless steel expanders depending on application and material.

    Bronze 3 piece rings are used predominately in pipeline applications. Carbon rings are specified for use in chlorine service.
    TY436 Butt Cut Rider Rings

    TY436 Butt Cut Rider Rings


    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®, TEFLON®, and Bronze.
    TY425 Angle Cut Piston Rings

    TY425 Angle Cut Piston Rings


    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.
    Bronze Piston Ring

    TY418 Butt Cut Piston Rings


    Bronze Piston Ring

    Miscellaneous Piston Rings


    TY430 Split Rider Ring

    Miscellaneous Rider Rings


    Viton O-Rings

    O-Rings


    Bronze Piston Ring

    Carbon Outer Segmental Wear Ring


    Bronze Piston Ring

    Carbon TY810 Segmental Wear Rings

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