Search results for query: *

Thanks for the response and information. We are not contractually obligated because we're doing repair and work on our own equipment and buildings. Our current policy states AWS D17.1 for non flight hardware but for our situation the codes doesn't seem to apply. If I understand AWS D17.1 code...

We are trying to update our policy at our plant for welding. I'm struggling with when do I need a certified weld inspector and a certified welder. For example, do I need both a certified inspector and certified welder to weld a piece of unistrut for a simple repair? Should the engineer...

We store 36% HCL inside in one of our processing buildings. The scrubber had leak and we off gassed HCL through the building. This has caused the galvanized conduits and piping to rust plus coat MCC. We taken samples on the inside of the MCC and no evidence of HCL. My questions are do I...

Does process piping or instrutmentation tubing or hydraulic tubing fall under IPC? Our inspector is saying our process piping that could go to a reactor or the instrumentation tubing going to a gauge or process vacuum piping or hydraulic tubing should be inspected per IPC. Is this true or is...

We are writing standard at our plant for proof testing hydraulic systems. These are mainly hydraulic power units piped with stainless steel tubing operating a cylinder or a hydraulic motor in the field. Currently the standard states that the system needs to be proof tested a 125% of maximum...

On our plant, we have a bay with an air handler plus unit heaters. This past winter the coil on the air handler froze. The reason is because it’s modulated steam going into the coil with the main condensate return being 42” above the return on the coil. Because of this situation, there is not...

Thanks everyone for your response. I was able to do some testing on the system by turning the steam off and running the system. I let the water in the system cool off overnight so when I started the pump the water temperature was 70 degrees F after 1 hour the heat had risen 20 degrees. The...

I guess what I'm trying to figure out is if a 3/4 HP pump will prevent this from happening. This is why I'm trying to figure out the Btu/hr for the current pump plus how much heat 3/4 HP will put into the system.

Thanks everyone for there replies. One thing I tried probably but not long enough is that I shut off the steam supply so I knew for sure that heat was not being inputted into the system. I ran it for about 15 minutes and the temperature rose about 2 degrees from 92 to 94. I've seen the...

I have a situation that I’m trouble shooting. We have process where are trying to maintain some small process vessels at 100 degrees F. The process is a closed loop water system running through a shell & tube heat exchanger which is heated by 15 psi steam on modulating valve. The centrifugal...

What's an EDMS and is it part of AutoCAD?

Thanks for the reply. First off I'm not stamping the drawings espeically if you're talking about a PE stamp. What I'm looking for is what others are doing equipment approvals. Generally what we've done is checked as "approved" or "approved as noted" or "reject".

I approve drawings from Contractors/Vendors. I'm trying find out how drawings are being approved electronically and what does your approval block look like. Thanks

Thanks for the reply. We are dealing with pryothecnics. Why would we be in violation of fire code? The plant fire and safety department would be the one's making sure of this being correct in conjuction with the insurance company. I take it you have never heard of this flexible system...

We are in the design phase of modifying a deluge system at our plant. Our plant operations group would like the deluge system to be install on a grid. This grid will be very flexible. Operations will have work cells with hoses hooked to different drops on the grid. During a typical work day...

I appreciate your e-mail. Mind you we are not going off half-cocked to repair this situation. We take our cranes and safety very serious at our plant. We talked to a guy at Crane America Services and he helped us out.

One of our millwrights recently rebuilt a load brake on a 10 ton hoist at our plant. The new discs called out were non-asbestos. Because of this the oil in the load brake was changed from 150 wt to 100 wt. Since this was rebuilt occassionly a rumbling noise could be heard from the load brake...

Thanks for all of the replies. Is ASTM F593C the most common type bolt that has ASTM markings? Or is there another ASTM F593 designated bolt that has higher strength and is fairly common?

I'm sorry if I mislead you. We are not having failures because of a larger bolt. We are having failures with the 5/16 bolt but not in the other buildings with 3/8" bolts. The cross section for the set up goes cadmimu plated nut, nylon, neoprene, 1/8" stainless sheet, then bolt head. Like I...

Thanks for the reply. What would a good preload/torque be for bolt like this?