Kerosene Pipe Thread Sealing

Mr Tickle · 02-03-2016 09:49AM #1

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 · 02-03-2016 03:03PM

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