PAN,
No, I will keep an 8" valve there because the slanting disk check has such a short opening distance and only requires a slight pressure differential to fully open. Because of these features I don't believe the disk will be "flapping like a flag in the wind" like an oversized conventional...
After much deliberation and a lot of help from this discussion I think I am going to go back in with a slanting disk check valve such as the Crane Fig. 24 or the Apco Series 800. A brief description about the Apco valve can be found here:
http://www.apcovalves.com/compare3.htm
It seems to...
Where can I find the Keystone Fig 86? I've done a few searches and can't come up with anything. Is there a website where I can look at them or a distributor that I can speak with. Also, how do I determine the required line velocity to hold open different swing type check valves?
The new...
I have an 8" check valve that I need to replace that is in the vertical plane 11" from the discharge of a 1435 gpm pump. We have replaced one in the past with another swing type check valve and it now makes the awfullest beating and banging noise when the pump is running. Since the swing check...
Nothing that I know of. We are just replacing/upgrading some equipment and the CT's are part of some equipment getting replaced. Please keep in mind that I'm mechanical in nature so all of this electrical stuff is a little over my head!
Thank you all for the replies. It was actually ABB who was needing the information and I was trying to gather it for them. They were saying the same thing that busbar said about them not being a standard ratio for MV switchgear and they were needing more information on our existing ones, which...
I am trying to find information on a few Westinghouse 7000:5A CT's, but am having no luck. If anyone could tell me where to get nameplate data from old Westinghouse products or even be able to tell me information on these particular CT's such as ratings, accuracy class, excitation curve, etc. I...
Thanks for the replies. I just need to clear my calendar and sit down and look into exactly what I need. I thought that if I threw some general guidelines out there someone might have known exactly what I needed.
Hi. I'm new here and this sure looks like a great site. I'm in need of a pump to pull hydraulic oil from a sump, send it through a filter, and back into the sump. The oil is low pressure and I only need about 10 gpm of flow, basically just something to continuously cycle the oil throught the...
