EnDura® E90SR

Category: EPDM , Ethylene Propylene Diene Terpolymer
Manufacturer: Precision Polymer Engineering Ltd.
Trademark: EnDura®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: vWIiOp_EnDura-E90SR.pdf
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A high temperature, steam resistant, EPDM elastomer material designed for geothermal applications including pumps, valves, turbines, drilling tools and equipment. In addition to geothermal applications EnDura® E90SR may be used in steam applications for enhanced oil recovery and general purpose high temperature hot water and steam applications.

EnDura® E90SR offers a maximum temperature rating in anaerobic steam up to 288°C (550°F), and may be used in short durations up to 315°C (600°F) in steam. This performance greatly exceeds standard EPDM materials.

EPDM provides broad chemical resistance to polar fluids, however E90SR is not recommended for hydrocarbon based oils and fuels. The material has been tested for explosive decompression resistance in carbon dioxide to NACE TM0297-97.

Key Attributes
  • Specifically developed for high temperature steam and geothermal applications
  • Longer seal life and high temperature resistance compared to standard EPDM materials
  • Resistant to polar fluids
  • Tested to NACE TM0297-97 ED standard

Typical Applications
  • High temperature water/steam and geothermal applications.
  • Geothermal explorations, drilling and completion equipment.
  • Steam injection for enhanced oil recovery
  • Seals for pumps, valves, and turbines
  • O-rings, T-seals, and custom molded seals
General Information
Features
  • Steam resistance
  • Low or no water absorption
Uses
  • Pump parts
  • Valve/valve components
  • Seals
Appearance
  • Black
PhysicalNominal ValueUnitTest Method
Specific Gravity 1.12g/cm³ASTM D792
HardnessNominal ValueUnitTest Method
IRHD Hardness 87ASTM D1415, ISO 48
ElastomersNominal ValueUnitTest Method
Tensile Stress (100% Strain)6.40MPa
Tensile Strength (Yield)20.0MPaASTM D412, ISO 37
Tensile Elongation (Break)250%ASTM D412, ISO 37
Tear Strength
    -- 40.0kN/mASTM D624
    -- 40kN/mISO 34-1
Compression Set ASTM D395, ISO 815
    135°C, 24 hr 25%ASTM D395, ISO 815
    135°C, 70 hr 37%ASTM D395, ISO 815
ThermalNominal ValueUnit
Maximum Operating Temperature 288°C
Additional InformationNominal ValueUnitTest Method
Low Temperature Resistance - TR10 -50°CASTM D1329
Minimum Operating Temperature: -50°C (-58°F)
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