Piston Seals

DingZing offers 2 types of DZ® piston seals: D-1 and D-8. These seals are used only for pistons, and select sizes are available in inches.

Mechanical Properties
  • Material: TPU, (D-8): TPU + PA
  • Specific Gravity (ASTM D792): 1.20
  • Hardness (ASTM D2240): 95
  • Tensile Strength (ASTM D412): 317
  • 100% Modulus (ASTM D412): 110
  • 300% Modulus (ASTM D412): 170
  • Compression Set 70h/70ºC (ASTM D395B): 34
  • Compression Set 70h/100ºC (ASTM D395B): 56
Oil Resistance
  • Testing Oil: Hydraulic Oil 46#
  • Testing Temperature (ºC): 100
  • Testing Time (Hour): 100
  • Hardness Variation (Shore A): -1
  • Tensile Strength Variation (%): -4
  • Volume Variation (%): +0.08
Working Conditions
  • Max. Working Pressure: 40 Mpa
  • Working Speed: 0.03 ~ 0.5 m/sec
  • Working Temperature: -20ºC ~ 100ºC
Type Section Material Hardness (Shore A) Adaptable Temp ºC
D-1 TPU 93 -20ºC ~ 100ºC
D-8 TPU + PA 95 -20ºC ~ 100ºC