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Recent content by jsalas1

  1. jsalas1

    Thrust/End play/float calculations for centrifugal pumps?

    Agreed with quad, in an OH2 pump, it is a function of the deflection due to thrust load, thermal growth, and the tolerance stack up of the components. In multistage BB5 pumps, we normally measure float on the magnitude of .050". The available float dictates the axial setting of the pump and the...
  2. jsalas1

    Strange Bearing Question

    Johnny, Thanks for the input. We've had success with Vespel and Nickel Graphalloy stationary wear rings, depending on whether or not the customer can really control their process (and the deepness of their pockets). We find that some of the younger folks running older systems are sort of just...
  3. jsalas1

    Strange Bearing Question

    Greetings, I have a customer whose pump we've overhauled, its a 9 stage boiler feed Sulzer MD 100-300. I wasn't told until now, but we received the pump with a pair of bearings that had been badly wiped. Now we're wrapping up the overhaul and the customer shipped us the spare journal bearings...
  4. jsalas1

    Repeated Feed Pump Bearing Failures

    Holy cow thanks for all the input you guys! The current climate surrounding this project is not great because its become a warranty issue but we hold that if the customer is performing their installation incorrectly, we can't be held liable. ANYWAY, I had the techs check the bearing constant...
  5. jsalas1

    Repeated Feed Pump Bearing Failures

    Hi all, longtime lurker, first time poster. I have a situation which is made more difficult in that I am getting only word of mouth from two middle-men, but I will try to be as detailed (or concise) as possible. We have a customer who has two feed pumps, both KSB HGC 3/10 (size 3 pump, 10...
  6. jsalas1

    API Plan 23 Cooling Water Requirements

    API 682 doesn't spec parameters like flow rate, pressure, or temperature but it does give general guidelines. For instance, Plan 23 is generally the plan of choice for boiler feed water pumps and services where the product viscosity is low. My guess is the OEMs would be able to give a...
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