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  1. cmn8226

    Vbelt and Pulley Design

    Hello folks, I have a dual drive skid that are Vbelts. A compressor is driven by either a Electric Motor or a diesel engine. The compressor sits in between the electric motor and the diesel engine. All pulleys/sheaves are rotating counter-clockwise. Engine and motor both have clutches for...
  2. cmn8226

    Water Cooled Exhaust Manifolds

    thanks for the feedback guys. Deffo some good points to consider. I had not even thought about manifold getting rusted and coolant entering the exhaust piping. Zone 2 requirements are based on the BS EN1834 standards. I am going to grab a copy and type of the most relevant section of it...
  3. cmn8226

    Water Cooled Exhaust Manifolds

    Thanks for the quick response. My area is not thermal nor cooling, hence why I am trying to get some feedback on the system design. I am still unclear on how exactly to achieve this: These are the facts 1. Independent cooling loop with water cooled exhaust manifold to ensure the surface...
  4. cmn8226

    Water Cooled Exhaust Manifolds

    Hey guys, hope this is the right forum to ask my question: I am currently in the process of building a Zone 2 compliant engine. One of the requirements is that any surface in contact with the surrounding air is under 200C. The exhaust gases reach temps up to 300C under our running conditions...
  5. cmn8226

    Corrosion in Galvanized Piping with glycol

    Thanks for the heads up and the references. I am going to spec out a pre-mixed additive and just add it to water. I am not sure what kind of water they have available on the off shore rig, but I am positive they have potable water. I was reading on some good closed loop corrosion inhibitors...
  6. cmn8226

    Corrosion in Galvanized Piping with glycol

    Hey guys, thanks for the response. It is a closed loop system, and as metalguy suggested to use the following: 1. TSP - raises the PH level 2. Sodium sulfite to scavenge oxygen 3. biocide to kill any SRBs Question is I am not familiar with TSP (Trisodium Phosphate?) - unfortunately my area is...
  7. cmn8226

    Corrosion in Galvanized Piping with glycol

    Hello All, One of our compressors that is going offshore has galvanized piping for the coolant lines(compressor manufacturers called it "hoses are carbon steel which are zinc plated with a clear passivate.") They have stated that they have used monopropylene glycol and Ethylene glycol...
  8. cmn8226

    Inconel 825 flanges

    Hey everyone, I don't know if this is the right place to ask, but I am trying to purchase some Inconel 825 flanges. There is no restriction of country, so I am wondering if you guys have any input on whom to go with or which country might have some great pricing? thanks a bunch
  9. cmn8226

    BSPP thread and NPT

    Hello guys, I am buying a compressor from the UK and bringing it down to the US for some work. The compressor comes with several thermowells for the temperature switches, but I have to substitute them with Temp Transmitters. I have to buy the RTD's for the transmitters. The thread on the...
  10. cmn8226

    Spec'ing out a Cooling water pump

    Hi everyone, I am in the process of spec'ing out a centrifugal water pump for an air compressor that is going for an offshore platform. This will cool a compressor that will be used for utility air. The cooling characteristics for the compressor are as follows: Cooling water flow is at 39GPM...
  11. cmn8226

    Optimum distance between 2 pulleys

    hey all, got a questions: there is a compressor driven by a engine, via a belt. the Compressor pulley sits a little lower than the engine pulley. ( i have this distance) I have the pulley details of the engine and compressor. My question is, how do I locate the optimum pulley distance...
  12. cmn8226

    Valve reading and resources

    wow, thank you very much for the information on the availability of resources. The Books mentioned above are great. I will be telling our company president to stock those books in our library. Also the links given are great as well. This thread has made me much more informative about the...
  13. cmn8226

    Valve reading and resources

    Thank you very much for the info, I will definitly look into all mentioned resources.
  14. cmn8226

    Valve reading and resources

    Hey guys, I am a newcomer to the valve, pump and compressor industry. I am looking for some good resources to learn about these some more and keep a little library of my own. They need not be highly technical (i.e. going into deep differential math, etc) but should have sufficent information to...
  15. cmn8226

    AWS spec for Titanium Grade 7 welding?

    What is the AWS spec for the titanium weld wire I should buy for welding Titanium Gr.7 material? (plate) Thanks,
  16. cmn8226

    ASME 16.5 flange tolerance

    A quick questions, on a 10" WNRF flange, according to ASME 16.5 standards, what is the tolerance of the length through hub dimension is?
  17. cmn8226

    API 6A PSL 3G

    Most vendors dont do PSL 3G on a couple of studded Tees i need. anyone have any information as to that this specification means? All i've been able to get from the vendors is that its something to do with Gas testing, an extra test. hence the G. Anyone know a place to obtain API 6A PSL 3G fittings?
  18. cmn8226

    alloy 601

    so when the MTR says annealed, it implies its solution annealed? because thats all it says as far as 'condition'
  19. cmn8226

    alloy 601

    Hey guys, I have a requirement for SB167 UNS NO6601 (alloy 601) pipe. does all 601 pipe come solution annealed? I am requiring it with a solution annealed HT process, and I am not sure if they come otherwise. thanks
  20. cmn8226

    origin of material

    so this usually means the raw material AND the finished product rather than just the finished product.
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