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  1. #1
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    MYCOM approved oil ?


    Good day to all ref.engineering!
    Need advise about Mycom approved (recomend) oil for two stage screw compressor 2016 C. Were I may find that information? Thanks in advance.



  2. #2
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    Re: MYCOM approved oil ?

    Hi Kristmax,
    l use only synthetis oil. Josef

  3. #3
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    Re: MYCOM approved oil ?

    Quote Originally Posted by josef View Post
    Hi Kristmax,
    l use only synthetis oil. Josef
    Hi Josef! Please write - who is maker of your oil?
    Last edited by kristmax; 15-02-2008 at 10:44 AM.

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    Re: MYCOM approved oil ?

    Hi Kristmax, send me please report e-mail. Josef

  5. #5
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    Re: MYCOM approved oil ?

    My e-mail XXXXXXXX
    Last edited by US Iceman; 15-02-2008 at 04:19 PM. Reason: Please use private messages (PM) to exchange email addresses.

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    Re: MYCOM approved oil ?

    Suggest you contact mycom especially if compressor is new.My experience with mycoms is they like suniso oil 3GS,4GS and 4SA for ammonia.On a compound,i would assume you need oil for ultra low temp application.Mobil 226E or similar OK,you may expect 'O' Ring shrinkage on seal as with most synthetics.What oil are you using at the moment and type of refigerant/conditions?

  7. #7
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    Re: MYCOM approved oil ?

    Thnks 2 RANGER1 !
    R22 -system.

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    Re: MYCOM approved oil ?

    Your manuals on the Mycom should have a recommended oils list included.

    Ken

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    Re: MYCOM approved oil ?

    Quote Originally Posted by TXiceman View Post
    Your manuals on the Mycom should have a recommended oils list included.

    Ken
    Hi TXiceman,

    i tried before searching thru their screw as well as recip manual. failure awaits me always. I think only recip manual mentions something on this but still not conclusive.

    but, many oil suppliers have claims on approval from some mycom offices on the compatibility.

    i suggest talking to these suppliers would be better.

    anyway, i only use the manual in servicing.
    Oil & its application, i talk to professional parties.

    Cheerio ...

    Hendry, on wesak day holiday.
    Hendry

    "What uncertainty means to you, and you only?"

  10. #10
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    Re: MYCOM approved oil ?

    try mobil SHC 226 synthetic ( MOBIL GARGOYLE SHC 226 Refrigeration Oil )
    Best option FMC Foodtech 688 synthetic. Both Mycom approved and good for -60 'C evap; at compressor and lower.
    Send commission check in mail. [joke ]

  11. #11
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    Re: MYCOM approved oil ?

    forgot to add in earlier post that Mycom will recommend change of shaft seal o/ring material compound as well,if using sythetic oil, your Mycom supplier should know that and advised you already. Stops leaking during operation due to oil / ammonia/ heat vacuum thing, Alignment on coupling is highly critical, recommend laser alignment, maximum total at mis-alignment less than 0.003, any measurment, radial . height , face to face, any which way. Mycom supply that sevice internationally.
    hope this all helps.
    magoo

  12. #12
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    Re: MYCOM approved oil ?

    magoo again. After having read all previous posts. For R22 use mobil SHC 426 sythetic, stops oil carry-over, has lower flocking value and suitible for all earier reasons. Oil carry will create reduced system performance and call back to site.
    magoo

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    Re: MYCOM approved oil ?

    What is the viscosity of the oil york type L

  14. #14
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    Re: MYCOM approved oil ?

    Many thanks for all answers. Now we use SHELL AB 32. Not have any problem with that oil. Normal evap temperature -35. Lower evap temperature not used.

  15. #15
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    Re: MYCOM approved oil ?

    RECOMMENDED OIL
    The following lubricants are recommend for use with MYCOM W series reciprocating compressors on refrigeration duty.
    The customer should be advised that various mineral oils are refined from different base stocks and may contain
    additives which are not compatible with a similar oil from another supplier, and that synthetic lubricants from different
    suppliers may have different chemical constituents. Therefore, it is recommended that lubricants from different suppliers,
    or of different types not be mixed, and that if the type or supplier of a lubricant is changed, the complete system charge
    of lubricant should be replaced.
    It should also be noted that the following listing of lubricants is not complete, and that inclusion or exclusion of a
    specific product does not imply acceptance or rejection of that product. For specific lubricants not listed, contact MYCOM.
    In the last two years Mycom Canada has conducted number of researches on available oil for Mycom W series
    compressors. Canada has very special oil market where Hydro treated paraffinic oil is as popular as mineral/synthetic
    oils. MYCOM W series compressor standard O-ring material is Buna-N on all NH3 compressors. Users must be aware of
    compatibility of O-ring materials and followings are our recommended oil for long life operation of the compressors.
    Most Recommended
    Refrigerant Min. Evap.
    temperature
    Lubricant Type Supplier-grade Recommended O-ring material
    Napthenic
    base mineral
    Texaco Cappella D WF68
    Suniso 4GS
    NH3 All *
    Synthetic MYCOM-AB68
    HSN or Buna-N
    Napthenic
    base mineral
    Texaco Cappella D WF68
    Suniso 4GS
    Freon All *
    Synthetic MYCOM-AB68
    HSN, Buna-N, Viton
    For high discharge gas
    temperature application use
    Viton.
    >-25 F Polyglycol Mobil Glygoyle22
    CPI 1516-150
    Propane
    <-25 F Polyglycol Mobil Glygoyle11
    CPI 1516-100
    Viton only.
    Be careful for use
    Refrigerant Min. Evap.
    temperature
    Lubricant Type Supplier-grade Recommended O-ring material
    NH3 All * Hydro-treated
    paraffinic
    Petro Canada Reflo68A
    CPI 1009-68
    HSN or Neoprene only
    Problem on use of hydro-treated paraffinic oil for NH3 application
    Buna-N must not be used on mechanical seal. Buna-N material will become hardened and shrink in volume,
    which then causes premature seal leakage.
    Newly developed O-rings for mechanical seals
    Mycom Canada has developed the O-rings with Highly Saturated Nitril (HSN) material. These O-rings seems to
    work on both mineral/synthetic and hydro-treated paraffinic oils for NH3 application.
    Mycom Canada now sells these O-rings as its standard replacement parts. Color is red and they are available at
    both Vancouver and Toronto warehouse


    copied text style from Mycom recip manual

    In Canada Eh
    Refrigeration is not just cool, it is my life.

  16. #16
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    Re: MYCOM approved oil ?

    Quote Originally Posted by IceMan_4000 View Post
    RECOMMENDED OIL
    The following lubricants are recommend for use with MYCOM W series reciprocating compressors on refrigeration duty.
    The customer should be advised that various mineral oils are refined from different base stocks and may contain
    additives which are not compatible with a similar oil from another supplier, and that synthetic lubricants from different
    suppliers may have different chemical constituents. Therefore, it is recommended that lubricants from different suppliers,
    or of different types not be mixed, and that if the type or supplier of a lubricant is changed, the complete system charge
    of lubricant should be replaced.
    It should also be noted that the following listing of lubricants is not complete, and that inclusion or exclusion of a
    specific product does not imply acceptance or rejection of that product. For specific lubricants not listed, contact MYCOM.
    In the last two years Mycom Canada has conducted number of researches on available oil for Mycom W series
    compressors. Canada has very special oil market where Hydro treated paraffinic oil is as popular as mineral/synthetic
    oils. MYCOM W series compressor standard O-ring material is Buna-N on all NH3 compressors. Users must be aware of
    compatibility of O-ring materials and followings are our recommended oil for long life operation of the compressors.
    Most Recommended
    Refrigerant Min. Evap.
    temperature
    Lubricant Type Supplier-grade Recommended O-ring material
    Napthenic
    base mineral
    Texaco Cappella D WF68
    Suniso 4GS
    NH3 All *
    Synthetic MYCOM-AB68
    HSN or Buna-N
    Napthenic
    base mineral
    Texaco Cappella D WF68
    Suniso 4GS
    Freon All *
    Synthetic MYCOM-AB68
    HSN, Buna-N, Viton
    For high discharge gas
    temperature application use
    Viton.
    >-25 F Polyglycol Mobil Glygoyle22
    CPI 1516-150
    Propane
    <-25 F Polyglycol Mobil Glygoyle11
    CPI 1516-100
    Viton only.
    Be careful for use
    Refrigerant Min. Evap.
    temperature
    Lubricant Type Supplier-grade Recommended O-ring material
    NH3 All * Hydro-treated
    paraffinic
    Petro Canada Reflo68A
    CPI 1009-68
    HSN or Neoprene only
    Problem on use of hydro-treated paraffinic oil for NH3 application
    Buna-N must not be used on mechanical seal. Buna-N material will become hardened and shrink in volume,
    which then causes premature seal leakage.
    Newly developed O-rings for mechanical seals
    Mycom Canada has developed the O-rings with Highly Saturated Nitril (HSN) material. These O-rings seems to
    work on both mineral/synthetic and hydro-treated paraffinic oils for NH3 application.
    Mycom Canada now sells these O-rings as its standard replacement parts. Color is red and they are available at
    both Vancouver and Toronto warehouse


    copied text style from Mycom recip manual

    In Canada Eh
    very extensive list you have there!

    over here, we only worry the receive of recycle oil even for branded ones!

    we have sent few branded ones for tests & failed. becuase someone just repack by using recycle oil of the brand.
    Hendry

    "What uncertainty means to you, and you only?"

  17. #17
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    Re: MYCOM approved oil ?

    hi good day for every one

  18. #18
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    Re: MYCOM approved oil ?

    Here's the Mycom technical memo about oil.

    harsekooz, ah'lan sidiq
    Attached Files Attached Files

  19. #19
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    Re: MYCOM approved oil ?

    Usually, we use Suniso Oil 3Gs and Shell Clavus 68 for our MYCOM Reciprocating Compressors.

  20. #20
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    Re: MYCOM approved oil ?

    What are the equivalent for Barrel Freeze oil P-46A?the freon used is R23 and application is for low side.

  21. #21
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    Re: MYCOM approved oil ?

    Best thing to do is contact your local Mayekawa Office, give them serial number of compressor, running conditions and ask for a oil recommendation.

    Selecting a correct oil depends a lot on running conditions and refrig used.

    I know situations of R22 units switched to Nh3 without changing the oil or gaskets, ... and then they ask why the compressor broke down, or is leaking ... I even had a large chemical plant putting hydraulic oil in the system. Resulting in a broken N2520 compound compressor.

  22. #22
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    Re: MYCOM approved oil ?

    Quote Originally Posted by charlie n View Post
    Here's the Mycom technical memo about oil.

    harsekooz, ah'lan sidiq
    I love it Mayekawa Canada created document all the way in China.. I love the internet
    Refrigeration is not just cool, it is my life.

  23. #23
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    Re: MYCOM approved oil ?

    The list provided by ICEMAN is an extensive list but is only for Reciprocating compressors. You need to contact Mycom directly for approved oil for the screw compressor. Please provide Oil type currently being used, the SCT and SST for the compressor and of course the refrigerant.
    thank you.

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