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  • Users: scooter911
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  1. scooter911

    Replacing plug stem packing in valve

    I'm looking for information on how to replace the stem packing on a Plug packing type system without having to disassemble the valve. Just never worked on one of these and thought it would be easier to ask for help. Any web sites or suggestions? Thanks Scooter
  2. scooter911

    Who makes the largest Turbo molecular vacuum pump?

    Anyone know of a larger turbo molecular vacuum pump than the Varian V 6000? Thanks
  3. scooter911

    Need 6 inch full flow 3000 psi valve

    I am looking for a full flow, 6 inch 1500 psi class, ring joint, stainless steel valve that can be opened or closed with full pressure(air) on either side. I'm guessing this would most likely be a soft seated ball valve. I'm trying to stay away from motor operated valves. Anyone have a...
  4. scooter911

    Plug type stem packing on old valve

    I have a 60's vintage Crane 8 inch water valve with what looks to be a plug type packing gland. There is a bolt with locknut and tag that says to adjust packing tighten bolt. Is there a special way to tighten the packing other than just tightening the bolt? If I bottom out the packing, can I...
  5. scooter911

    Standard Document for Instrument Relief Valves

    I have a safety engineer trying to inforce the B31.3 rules for spring tolerances and set pressures to standard off the shelf instrument relief valves. B31.3 refers to ASME section VIII for these values and the relief valves I'm buying from Nupro and Circle Seal do not follow these rules...
  6. scooter911

    High Speed Stuffing Box

    I have a 2 inch shaft with a standard graphite packed stuffing box that has a vacuum on one side and room air on the other. The shaft turns at approximately 1000 rpm and it has leaked for some time. I am fixing to take it apart and have never seen a stuffing box used on a high speed shaft. As...
  7. scooter911

    Ambient vaporizer on high pressure LN2

    Just wondering if there are any major problems using a ground based ambient temperature vaporizer after a high pressure LN2 pump to generate high pressure GN2. All my other units use electric vaporizers and due to costs we are looking at a ambient temperature one? Thanks
  8. scooter911

    Ring Joint Flange

    I have a manifold with 5 three inch rtj flanges at 3000 psi. I'm having trouble getting the rings to seal, mainly due to bad alignment. Any ideas on how to do it without over torquing the flanges. I tried teflon coated rings but ones still leaking? Thanks for the thoughts.
  9. scooter911

    Fixing misaligned rtj manifold

    I have a 3000 psi 5 tank manifold that has 3 inch 1500 psi rtj flanges with 1 1/8 inch studs(40 yrs old). Due to troubles with a misaligned manifold, torquing has been a problem in the past. I installed teflon coated stainless oval rings and am up to 600 ft/lbs on the studs with one flange...

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