The NS-28 is a compact assembly designed and developed specifically for one piece pistons. The assembly comprises a wear-resistant polyurethane slip ring which is loaded by an NBR ring. There are split 'L' shaped anti-extrusion bearings made from POM on both sides of the seal. The proportions of the range have been determined to give a satisfactory performance when used with the recommended operating conditions. NS-28 can be manufactured using two different profiles as shown in the below mentioned picture.
Pressure : 400 bar
Temperature : -35°C ~ + 100°C
Sliding Speed : ≤ 0.5 m/s
Media : Hydraulic oils (Mineral oil-based)
Material : PU +NBR +POM
Energizer : NBR/FKM (FKM Energizer should be used when temperature is over 100 °C)