Stenso - Hovedkatalog 2019

Guide Ring - PartA Material: filled Pom/Acetal Short insides of the split/partitioned slide rings guarantee considerably simple as- sembly on single piece pistons. The practical design facilitates optimal distribution of transverse forces/shear forces that come into play. Axial unloading grooves ensure a shorter response time of the seal in case of quick changes in load. Specially de- signedmaterials ensure high pressure stability, even in case of variable thermal con- ditions. Low finishing tolerances ensure better piston sliding and optimize the seal function. Support Ring - Part C Material: Hytrel-Elastomer Both support rings together are produced to the required form and force locking ar- rangements between sealing element and sliding ring. Special material and close to- lerances prevent extrusion of the sliding elements. Pressure relief grooves on the dynamic side eliminates pressure concentration even with quick load variations. Sealing Ring - Part B Material: NBR Sturdy sealing ring from highly wear-resistant NBR are proven to be superior due to low compression strain and high tensile strength. Out of the three sealing edges, the larger one in the middle serves as the primary seal, and the two smaller external lips serve as a pre-seal. The broad clamping area is taken up by static sealing of the groove diameter and rubber part. Specially designed angular shoulders incorporated on both sides eliminate the pos- sibility of turning of the sealing element in the event of shocks. Double action piston seal series MD has been used as a cylinder seal for years. The universal range of application from low pressures to heavy hydraulics is a major advantage. It also has proven results in cases of unilateral pressure application. 19 MD Piston Seal