Kerosene Pipe Thread Sealing

Mr Tickle

Hi. I'm hoping someone here can help me with this one.
I've found a small leak coming from the fire valve on the line from our tank to the boiler. Not huge but it had been dribbling for a few days.

The valve in question is similar to this one http://www.woodiesdiy.com/product/plumbng-valves-38-standard-fire-valve/12914/6.0.0.13

The leak is on the "down stream" end of the valve and looks to be just coming through the threads. I think it got a knock when some stuff fell in there last week. I'm hoping i can fix this myself.

So 2 questions:
1. If i loosen the wheel on the valve will this shut the flow off enough to let me unscrew and fix the leaking thread?
2. What should i be using to seal the thread? Is regular PTFE tape ok for use with kerosene or should i be looking at something like loctite thread seal?

It all looks straightforward but i've little experience with boilers.

agusta

You would be better to turn off the valve at the oil tank. Fire valves sometimes leak afterwards when you close the valve. ptfe used with a jointing compound would be fine.i use heldite or rocol super red

Mr Tickle

Thanks. Do you know are there any issues i'm likely to run into with the bleeding? It's a firebid 50/90.

agusta

You shouldnt have any issues because the oil will remain in the line.Just bleed it as you normally do

crock!

When your repairing leak maybe you should change flexible oil line if it hasnt being done recenly.they should be changed every two years

jimf

sorry crock that's 22 in limerick