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莫雷拉(Madrela)GP往复式

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添加时间:2012-12-17 11:27:18       浏览次数:689
  详细信息

Technical Data Sheet

Shell Madrela Oils GP
Synthetic lubricant for gas compressors

Shell Madrela Oils GP have been specially developed for cylinder lubrication of
reciprocating compressors handling natural gas at high pressure.                              They are based on
polyglycol base fluids and offer significant benefits over mineral oil-based products,
especially in gas re-injection compressor applications.

Applications
*  Gas re-injection compressors                                    *  Lubricant film retention
    Recommended for cylinder lubrication of                           The reduced viscosity loss also results in
    reciprocating compressors used for oilfield gas re-               retention of a stronger lubricant film on the
    injection at pressures of up to 400 bar (5,800 psi).              cylinder wall, piston rings and packing
                                                                      components.  Corrosion protection is
*  LPG and LNG Vehicle fueling                                        increased and wear rates further reduced.
    Suitable for use in compressors handling natural
    and petroleum gas for vehicle fueling applications.            *  No effect on well formation
                                                                      In gas re-injection applications, Madrela GP
*  Reciprocating gas compressors handling                             that is present as carryover in the re-inject is
    hydrocarbon and other gases                                       compatible with well bore treatment chemicals
    Madrela GP may also be used for compression of                    and resists deposit formation and well
    hydrocarbon process gases, carbon dioxide,                        impairment caused by plugging of the well
    hydrogen, helium and nitrogen.                                    strata.
Special changeover procedures are required when
moving from mineral oil-based products to Madrela                  Seal compatibility
GP and vice versa.
                                                                   Madrela GP may be used with most common seal
Advice on applications not covered in this leaflet may             and packing materials.  However, leather seals
be obtained from your Shell representative.                        are not reco

mmended for use with polyglycol-
                                                                   based lubricants, as the natural fats tend to be
Performance Features and Advantages                                removed causing seal shrinkage and hardening.

*  Reduced hydrocarbon gas solubility
    Developed specifically to provide reduced gas                  Health and Safety
    solubility.  This results in reduced viscosity loss in         Guidance on Health and Safety are available on
    comparison with mineral oil-based products,                    the appropriate Material Safety Data Sheet, which
    improving piston ring and packing lubrication.                 can be obtained from your Shell representative.
    Service intervals can be extended, reducing                    Protect the environment
    maintenance and downtime costs.                                Take used oil to an authorized collection point.
                                                                   Do not discharge into drains, soil or water.
*  Reduced feed rate
    The improved lubrication allows a reduction in
    cylinder feed rates, reducing lubricant
    consumption and costs.

 Typical Physical Characteristics

  Madrela GP                                                                        100                220

  Kinematic Viscosity

      at 40°C                                             cSt      ISO 3104          85                 198

      at 100°C                                            cSt      ISO 3104         16.4               34.8

  Viscosity Index                                                  ISO 2909          208                223
  Flash Point COC                                          °C      ISO 2592          288                295
  Pour Point                                               °C      ISO 3016          -51                -39

  Density at 15°C                                       lb/gal    ISO 12185         8.7                 8.9

These characteristics are typical of current production. While future production will conform
to Shell's specification, variations in these characteristics may occur.

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