Description & Advantages
The NS-20 ZSDA seal for cylinders with radial drillings is a piston seal which can dynamically operate over drillings in the cylinder bore up to 3 mm diameter. It can also be used as a high pressure seal on cylinders with-out radial drillings up to 2000 bar. The ZSDA seal consists of 5 parts. Two L-shaped metallic support rings and an intermediate metallic thrust ring support a slide ring of PTFE compound with narrow sealing lips on its outer diameter. An O-ring acts as energiser to provide a sealing function even at zero pressure.
Pressure : 450 bar
Temperature : -35°C ~ + 100°C
Sliding Speed : ≤ 1.0 m/S
Material : NBR + PTFE-Bronze/ Carbon / MoS2/ Graphite+ METAL +POM
O - Ring : NBR/FKM (FKM O-Ring should be used when temperature is over 100 °C)