The Douty seal is basically an O-ring around the pig; it helps create a flexible seal within the pipeline around the Pig Barrel. It has to be a flexible seal to allow for slight imperfections in the pipe diameter, otherwise the Pig could become permanently lodged in an area with a slight imperfection in the pipe diameter.
How did I do?Can anyone explain about douty seals used in oil and gas pipe line pig barrels?
very high maint.., this guy knows his pigs....Can anyone explain about douty seals used in oil and gas pipe line pig barrels?
I don't recognize the term ';douty seals'; or ';pig barrels'; for that matter.
However you may be referring to the practice of passing a ';pig'; through a pipe or a pipeline to flush the contents through to one end at the completion of a process cycle to recover material left in the line that would otherwise be wasted. The term ';pig'; refers to a projectile that is sized to closely approximate the inside diameter of the pipe. It is launched by a blast of compressed air or other similar means. The line is then cleaned by flushing it with a cleaning agent in preparation for another process cycle.
In pipelines it may be used in a similar way to clean the lines of small amounts of material adhering to the pipe walls that pose a risk of plugging over time if left untended. The pig would be introduced to the pipeline while it continued in service and captured downstream for re-use.
Hope that helps.
Wednesday, April 28, 2010
Motorbike oil seals leaking for NO REASON!?
My motorbike passed an MOT last year, and then has sat in the garage all year having done only 10 miles. When I went to take it out for a new MOT, I found the front fork seals are badly leaking, which obviously weren't last year or they wouldn't have passed the test. My question: is it normal for oil seals to deteriorate without any use? Both seals are leaking just as badly. I had assumed the oil had just crept out slowly over the year (they are upside-down forks on a sports bike) but when I actually rode it, after a few miles I could see the amount of oil was quite great. Is this normal deterioration?Motorbike oil seals leaking for NO REASON!?
Seals can dry out without regular use. The petroleum inside help keep them moist.
Ride the bike more next time.Motorbike oil seals leaking for NO REASON!?
It's not unusual for them to deteriorate from non-use.
Seals can dry out without regular use. The petroleum inside help keep them moist.
Ride the bike more next time.Motorbike oil seals leaking for NO REASON!?
It's not unusual for them to deteriorate from non-use.
My transmission is leaking oil and I don't think it's the front pump seal?
I have a Siverado with a 4L60E transmission. The guy brought my truck to said that it is the front pump seal but I don't think that it is because of where the front pump seal is. The front pump seal is at the torque converter, correct? Well, I'm leaking transmission fluid where the harness plugs in (passenger side). In fact, there is barely any fluid getting onto the ground because all of the fluid is trapped on top of the transmission. If I wouldn't have had to change the engine harness I wouldn't even know that it is leaking.My transmission is leaking oil and I don't think it's the front pump seal?
TAILSHAFT SEALMy transmission is leaking oil and I don't think it's the front pump seal?
Then change the harness O ring in the transmission if that is indeed the location of the fluid drip. Sounds like it from your description.
If the front seal is bad, you will get a drip out of the bottom (inspection cover) or the bell housing through the little hole.
Change the filter, pan gasket and fluid while you are at it UNLESS you have very high miles on it.
If i understand u right about where it leaking the it sound to me like the T line fittings on pass side if you dont have fluid inside bell housing then its not pump seal. If it is leaking from other than where i think em me more info about where its at kmp1171@att.net
TAILSHAFT SEALMy transmission is leaking oil and I don't think it's the front pump seal?
Then change the harness O ring in the transmission if that is indeed the location of the fluid drip. Sounds like it from your description.
If the front seal is bad, you will get a drip out of the bottom (inspection cover) or the bell housing through the little hole.
Change the filter, pan gasket and fluid while you are at it UNLESS you have very high miles on it.
If i understand u right about where it leaking the it sound to me like the T line fittings on pass side if you dont have fluid inside bell housing then its not pump seal. If it is leaking from other than where i think em me more info about where its at kmp1171@att.net
Replace the valve stem oil seals?
My 1994 Isuzu Trooper has blue smoke when it is cranked after sitting for several hours and the engine is cold. It doesn't smoke on startup when the engine is warm. There is much more smoke the longer it has sat such as over night or for a day or two. I was wondering if it could possibly be the valve stem oil seals. The engine uses very little oil (maybe half a quart every 2000 miles) and has 190,000 miles on it. It runs good other than the startup smoking problem. I was thinking that as long as the engine is warm then maybe the seals expand and seal better and when the engine cools they contract and oil gets to the cylinder at startup. Does this sound like a possible cause? I have a shop manual for this car and it looks like a pretty straight forward fix although I would probably have mechanic do the work. The book I have only explains the fix and not the symptoms of bad seals. Does my engine have the symptoms? It's a 3.2 liter V6 with dual overhead cams.Replace the valve stem oil seals?
Hey Blazer I Normaly dont give out trade secrets that took a combination of 33yr master auto tech,repair shop owner,but im going to let you in on one.
all the previous awnsers are good sound advice,but i think you may have a combination of problems,probably worn seals,and some wear on the int. valve guides...... BUT there may be a cheap solution to your problem ,which could solve 80% of your problem,here it is
On dual overhead cam engines,well all engines ,over time ,high mileage the oil return holes in head become plugged,remove valve covers and verify,if you use penz,or quaker state a pariffin base oil you will Know this is the prob.
Take a shop vac and a wire and unplug oil return holes ,should be 2 on each head,being careful not to let debri fall to pan ,do NOT disturb any more than nessary reinstall valve covers ,you can do this your self, if this cheap fix dosent work, than follow prev. advice Post IF THIS SOLVES your prob.Replace the valve stem oil seals?
You have really just answered your own ?.Its called wear and tear items.In your owners manual it should give you a scheduled maintenance for your ride or go to your local Isuzu dealership and will steer you in right direction.They will let you know what needs to be changed and replaced with a SUV with high miles.Sometimes its probably better and cheaper at a local Joe garage.Also keep in mind who is certified and not.
With 200,000 miles, any money spent on this eng other than a total rebuild is wasted. Drive it until it wont pass smog check any longer and then rebuild the eng or trade it in.
Sounds like the right cause.
The ohc engines are more difficult to change out the seals normally but it sounds like the reason for the smoke on start-up.
Hey Blazer I Normaly dont give out trade secrets that took a combination of 33yr master auto tech,repair shop owner,but im going to let you in on one.
all the previous awnsers are good sound advice,but i think you may have a combination of problems,probably worn seals,and some wear on the int. valve guides...... BUT there may be a cheap solution to your problem ,which could solve 80% of your problem,here it is
On dual overhead cam engines,well all engines ,over time ,high mileage the oil return holes in head become plugged,remove valve covers and verify,if you use penz,or quaker state a pariffin base oil you will Know this is the prob.
Take a shop vac and a wire and unplug oil return holes ,should be 2 on each head,being careful not to let debri fall to pan ,do NOT disturb any more than nessary reinstall valve covers ,you can do this your self, if this cheap fix dosent work, than follow prev. advice Post IF THIS SOLVES your prob.Replace the valve stem oil seals?
You have really just answered your own ?.Its called wear and tear items.In your owners manual it should give you a scheduled maintenance for your ride or go to your local Isuzu dealership and will steer you in right direction.They will let you know what needs to be changed and replaced with a SUV with high miles.Sometimes its probably better and cheaper at a local Joe garage.Also keep in mind who is certified and not.
With 200,000 miles, any money spent on this eng other than a total rebuild is wasted. Drive it until it wont pass smog check any longer and then rebuild the eng or trade it in.
Sounds like the right cause.
The ohc engines are more difficult to change out the seals normally but it sounds like the reason for the smoke on start-up.
Can anyone explain about douty seals used in oil and gas pipe line pig barrels?
The Douty seal is basically an O-ring around the pig; it helps create a flexible seal within the pipeline around the Pig Barrel. It has to be a flexible seal to allow for slight imperfections in the pipe diameter, otherwise the Pig could become permanently lodged in an area with a slight imperfection in the pipe diameter.
How did I do?Can anyone explain about douty seals used in oil and gas pipe line pig barrels?
very high maint.., this guy knows his pigs....Can anyone explain about douty seals used in oil and gas pipe line pig barrels?
I don't recognize the term ';douty seals'; or ';pig barrels'; for that matter.
However you may be referring to the practice of passing a ';pig'; through a pipe or a pipeline to flush the contents through to one end at the completion of a process cycle to recover material left in the line that would otherwise be wasted. The term ';pig'; refers to a projectile that is sized to closely approximate the inside diameter of the pipe. It is launched by a blast of compressed air or other similar means. The line is then cleaned by flushing it with a cleaning agent in preparation for another process cycle.
In pipelines it may be used in a similar way to clean the lines of small amounts of material adhering to the pipe walls that pose a risk of plugging over time if left untended. The pig would be introduced to the pipeline while it continued in service and captured downstream for re-use.
Hope that helps.
How did I do?Can anyone explain about douty seals used in oil and gas pipe line pig barrels?
very high maint.., this guy knows his pigs....Can anyone explain about douty seals used in oil and gas pipe line pig barrels?
I don't recognize the term ';douty seals'; or ';pig barrels'; for that matter.
However you may be referring to the practice of passing a ';pig'; through a pipe or a pipeline to flush the contents through to one end at the completion of a process cycle to recover material left in the line that would otherwise be wasted. The term ';pig'; refers to a projectile that is sized to closely approximate the inside diameter of the pipe. It is launched by a blast of compressed air or other similar means. The line is then cleaned by flushing it with a cleaning agent in preparation for another process cycle.
In pipelines it may be used in a similar way to clean the lines of small amounts of material adhering to the pipe walls that pose a risk of plugging over time if left untended. The pig would be introduced to the pipeline while it continued in service and captured downstream for re-use.
Hope that helps.
Subscribe to:
Posts (Atom)