DLSEALS also custom designs rings and has developed specific combinations for particularly problematic and demanding applications. This has also included numerous successful conversions from lubricated to non-lubricated operation.Pressure balanced rings are available, when deemed appropriate for high pressure applications and piston/rider ring combinations are also available for more specific applications.
Large diameter piston rings up to 47” (1200mm) are custom manufactured for special requirements. A range of metallic piston and rider rings are also manufactured, using selected grades of bronze or cast iron, where operational requirements dictate.
High performance of rider rings:
1,Different designs and types of cuts are also used.
2,The materials usded have the same resistance as the piston rings,in order to meat the
requirements of the most stringent condition sevice.
3,All of these parts are designed with decompression grooves,to avoid their operating as piston rings,which could cause premature wear.
To optimize these characteristics the leakage rate must be kept to a minimum, which is why CASTANET :
manufactures its piston rings in a wide range of extremely wear-resistant materials. also offers a wide range of designs for improving the sealing function according to the pressure, molecular weight of the gases (specially in the case of low density gases) and the materials used. Different types of cut and configurations are studied to minimize residual leakage and the effects of wear on sealing performance.
All of these technical solutions enable the service life of the compressors to be extended and thus reduce operating costs (improved volumetric efficiency, increased service between scheduled overhauls).
Piston rings, rider rings and bands are manufactured in various designs:
One-piece or segmental straight Angle cut Step cut Twin Ring™ Double Twin Ring™ Two Segment Pressure balanced