2 Pipe Oil Question???

Robert O'Connor_7

Gents, I need help figuring out an oil problem. If the return line clogs on the pump, can the pressure to the nozzle increase making the flame bigger. The apliance sooted up causing a real bad smoke condition. Robert O'Connor/NJ

Robert O'Connor_6

Yep

I've seen pump pressure increase with partially closed valves in two pipe oil set ups.


Usually a return line won't plug though.

Valves and check valves are prohibited in return lines/

Bring your question to:

http://disc.server.com/Indices/24736.html

and let the oil pro's kick it around.

Best regards,

Robert O'Connor
Auburn ME

Firedragon_4

I think if it happens your seal will

probably weep or God forbid blow first! Generally there is a slight pressure (5-10 psi) and unless the system is contaminated that keeps it clean.

joe_31

oil lines

if the return line plugs. your pump seal is gone. use an oil watcher to see if you are getting a solid stream of oil to the unit or if it is being airated like a partially blocked oil filter, high eff. felt filter [white] or suction leaks. whats the vacuum? watch that. also remember you are moving tons more oil than you have to for your nozzle. we have started to use tiger loops on ug tanks pull like 2 pipe at burner but you only move what you need to burn. before we used cheater loops or day tanks. joe

Weezbo

indeed....

worse yet it can blow the seal out and you could have a heck of a Flame on your hands:) Joe is right on in his reasoning...i still use the cheater loop and day tanks though on systems with many furnaces and say a 15000gal a week tank.

Robert O'Connor_7

Joe.

Can high vacuum cause higher pressure @ the nozzle? If so, then why? This was discovered by my best tech unfortunatly I was never able to check it, for it was after hours and he was on standby. We typically use Beckett on all our work (just to make after hours service easier) He changed out the whole burner and brought it back to the shop. This was done to correct the situation for it being one of our largest oil accounts. Robert O'Connor/NJ..ps. I thank you all for your quick responses this has bothered me since it occured.

jweglarz@hotmail.com

high vacuum

bob, i do not think high vacuum will give you more pp but less. the oil will be separating and the pump will be giving you a dirty and noisy fire and making it hard for the burner to control. i think that is where you will get the soot at least when we used stack controls they would block with soot and stop the darn thing. joe