I'm assuming most of the respondents have not worked in a sawmill environment. Fancy fixes to this problem will not be appreciated by the customer the next time the line is revised or requires maintenance.
I'm assuming the log is falling from a trim saw or sorting machine onto a drag chain or...
There are oxygen scavenging and corrosion inhibiting additives used in hydronic heating systems as well to prevent corrosion. Not always used in closed systems.
When inspecting a hydronic system, if lots of makeup water has being used over time say due to a collapsed pressure tank, you are...
The systems are tested annually at which point fresh oxygen bearing water is introduced. During this time corrosion occurs until the oxygen is consumed.
If say a galvanized pipe plug is installed in the system the zinc is rapidly stripped off the pipe plug and pitting starts on the plug...
Is it a tall building? Are you using the FP to meet pressure requirements on the standpipe? Are the systems designed as high pressure?
I have no love pressure relief or reducing valves. They seem to need a lot of maintenance to remain working years down the road. I assume you mean you are...
As a note, in large systems that have been recently drained, the jockey pump can sometimes operate a long time, often longer than the flow switch delay setting. We have found an excess pressure pump on an alarm valve using an alarm switch with mechanical/pneumatic delay to be a fairly good...
Good afternoon,
I've been asked by a client to consider a substitution in my design of a wet pipe sprinkler system. The system will have an oxygen depleted condition when in service and there are no know MIC problems in the surrounding areas.
The system was designed using normal plain steel...
In my province of Canada, non-competition clauses are very weak. If they are too strong, a judge simply throws out the whole agreement. They are only upheld when reasonable.
So if I work in a field that any mechanical engineer could work in, and I part ways, my employer has no claim to a...
Very interesting, I had a bit of trouble with the authority using a similar system only it was 4-5 feet of compacted aggregate in trenches below a continuous footing.
They required another engineer review the design. He didn't want to assume any liability so my continuous footing became a...
Air-compressors are not required to be listed, you can grab air from the plant air supply or better yet instrument air.
The power supply isn't required to be supervised either. The client obviously would like the dry system to be reliable. No one wants busted pipe due to freezeups from...
The inverted joist hangers is better than my idea but www.socketsystems.com sell pre-drilled purlin clips that are a 1/8th or so thick steel angle with predrilled holes.
I'm using them to attach a fascia to cantalevered 2x6's so it can be installed from the roof (difficult to get to the face of...
I have worked some construction equipment fire investigations, all are much after the fact, one was 4 years post fire. Luckily some components were preserved and the original cause listed was shown to be false.
I don't know what you are looking for, search those resources he listed, they contain piles of detailed information.
You have to design around those 3 key items, you can't load a footing high enough to defeat the frost heave, only the adfreeze in some cases. I think I've seen a number of 100...
In power plants I have spec'd ABC's based on size/travel distance requirements and the reduction allowance for hose stations. We then placed CO2 extinguishers at electrical / computer room entrances and around other specific electrical hazards.
If you have a Class A fire in a piece of...
Sony DSC-85, not sold anymore but 4.1 mp, any size card you want, excellent low light ability especially the non-flash mode if you toss a bean bag in your case to steady the camera on. Also has a flash shoe to put a real flash on. None of the little ones on the camera are rated for more than...
