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Piston and Rod Seals

DingZing offers 4 types of DZ? piston/rod seals: UN, D-4, D-6, and D-7. These inherently tough seals are suitable for both the piston and rod of a cylinder. Select sizes are also available in inches.

Mechanical Properties
  • ? Material: TPU, (D-6): TPU + NBR
  • ? Specific Gravity (ASTM D792): 1.19
  • ? Hardness (ASTM D2240): 93
  • ? Tensile Strength (ASTM D412): 276
  • ? 100% Modulus (ASTM D412): 100
  • ? 300% Modulus (ASTM D412): 191
  • ? Compression Set 70h/70oC (ASTM D395B): 42
  • ? 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): 0
  • ? Tensile Strength Variation (%): -5
  • ? Volume Variation (%): +0.12
Working Conditions
  • ? Max. Working Pressure: 30 Mpa, (D-6): 35Mpa
  • ? Working Speed: 0.03 ~ 0.5 m/sec
  • ? Working Temperature: -20oC ~ 100oC
 
Type Section Material

Hardness

(Shore A)

Adaptable

Temp oC

UN TPU 93 -20oC ~ 100oC
D-4 TPU 93 -20oC ~ 100oC
D-6 TPU + NBR 93 -20oC ~ 100oC
D-7 TPU 93 -20oC ~ 100oC

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