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I'd purge by lifting or removing the relief valve, then set it back after a low O2 reading. Or even blind the pcv and vent upstream by parting the flange at the blind.

In pipelines, this valve is piggable. Some of the regular gate valves had guide ears on the bottom of the valve which would hang up a pig. Foster Valve is good too.

There are no baffles in in kettle reboiler. You just need to design enough space above the tubes to disengauge and keep the vapor line large enough to overcome hydraulics. You may need multiple vapour outlets too like sshep said on inlets..

sms, I see RDK's point. The excess watts from an incandecent bulb heats the house. An in Houston I understand your point there. So RDK is stating at some point you do not get ahead with CF. I have some recessed lights over the kitchen sink. In the summer I put in the CF. In the winter (CO)...

So, how did anyone surive at all before any code or standard, I mean we should all be dead eh? Codes fill in for so any non engineer has access to engineering. Anyoneone can get a pressure vessel today cheaper and easier because of standards or codes. I'll defend Texas as a state that must...

The newer generations have replaced common sense with rules or zero tolerance. I see where there is a new push to replace zero tolerance with more common sense or looking into the facts, circumstances, and intent......

I believe that gaseous fuels should only be used to heat homes, no conversions to liquids. The reason is that they transport in an infastructure that exists, the cost to convert to liquids is a loss of overall energy. and they just work safely that way. Liquid hydrocarbons should be used for...

look up this link to the cat spark engines. http://www.cat.com/cda/files/98944/7/lehw0815_03.pdf The OP wanted to know the maximum compression ratio and people started talking about ignition temps that dictate it which is wrong. The term of octane number is the best way to calculate maximum...

PLC's ARE NOT totalizers, they are averagers.

transducers have error as a percent of range. A 1% error on a 0 to 2000 psi means 20 psi so put your 52 psia meter spanned to 0 to 2000 psia and 20/520 = ? meanwhile I'll put a 0 to 100 psia in on my 52 psia and be off 1/52. Who wins now? Oh and because pressure is under the radical, the...

WHAT PATPRIMMER? the 2 liter mitsubishi engine sold in the EVO and the 1.8 liter toyota sold in the celica, vibe, matrix, corolla, elise are gasoline.... These along with the 2.5 liter subi and 2.3 liter ford/mazada are top contenders for HP/CI ratio engines. Good generalized link for the...

What for? lossen the valve springs to save HP to the valve train, but suffer HP loss when valves "float". It's a trail and error game. Eventually you could run enough combinations to write your own equation taking into account springs, cam lift, rpm, CR, fuel....

I've run some of the gas jac curves and I can see about 55 HP maximum, add in coolers and such and you can get to 65 hp for compressor. If you ratio a cat engine it would make 85 hp from the same ci displacement. so, its in the same area if you consider that the ford isn't optimized like a cat...

I thought the new Variable valve systems everyone was making have no valve overlap until the VVT kicks in and then they have a lot more than an old time big block making big HP.

Crystal1clear, and your point is? By definition at 100 octane you can run 12.5 : 1 and not detonatein a variable compression engine test stand, so auto iginition doesn't hold water. Try your numbers out on nitro-methane and methanol too. After many years of study, catapillar engines and...

Ththe equalibrium zone is the area in a bed where the adsorbent has be saturated (to equlibrium)) of the contaminant. The safe zone id a the region in the bed where the adsorbant has not been in contact with the contaninate at a concentration greater than it's regenertaed (of fresh)...

good plan guys, the 15 mile between the station tells me there will be no pulsation that interfers, we have the same arrangement less than 2 miles apart (a little more compressible hydrocarbon mix).

djack77494, wrong, the newer instruments can be adjusted, I suggest you visit rosemounts web page or the others honeywell, yokagawa, ect and get caught up.

you can't do that. you could use a glycol contactor system (TEG) to dry the air at 15C to a -5C dew point. i've never seen frost on the outside of coolers unless the product on the inside was below 0C. If the air is cold, then there is no water in it to freeze. Why not automate the...

No way to answer, how many cams, compression ratio, valves/cykinder, BMEP, spark v disel, and on...