fuel drain valve

[BrendAn]

11 hours ago, facthunter said:

None like that. The ones I recall can't stay open. You had to push them up to get fuel to exit.. Viton is for heat situations,. I wouldn't like relying on an O ring that can break and Leak a lot.  Nev

these don't stay open either. you push the fuel tester against the spring pressure to get fuel.

[spacesailor]

Two different taps ! .

One a quick test of fuel. 

The other to drain your " gascolator " , at the days end.

Those threads are the same pipe thread ( tpi ) . just one is tapered , to seal with-out thread tape .

spacesailor

[facthunter]

One of the types Illustrated WILL stay open. if it's rotated anti clockwise when pushed in.  A Tapered Metal to metal seat will seal and it helps if it is rotated occasionally.  IF the O ring is not the right material for the fuel it will fail fast and you will have a significant leak that you might not notice.    You should not drain old fuel onto the ground either . Nev

[Blueadventures]

6 hours ago, facthunter said:

One of the types Illustrated WILL stay open. if it's rotated anti clockwise when pushed in.  A Tapered Metal to metal seat will seal and it helps if it is rotated occasionally.  IF the O ring is not the right material for the fuel it will fail fast and you will have a significant leak that you might not notice.    You should not drain old fuel onto the ground either . Nev

Mine goes into a fuel receptor on my ride on mower🙃

[kgwilson]

I've used Curtis fuel drains for years and replaced the O-ring seal. If the O-ring wasn't there fuel would just run out. A standard fuel tester with its castellated notched top fits the horizontal rod and a push up allows fuel to flow in to the tester tube. While pushed fully up twist the tester to the right and the valve will lock open & you can drain the fuel in the tank in to a container. A good quality brass reliable fuel drain. I have never had to replace one, just the O-ring.

[skippydiesel]

On 18/07/2025 at 9:43 PM, kgwilson said:

I've used Curtis fuel drains for years and replaced the O-ring seal. If the O-ring wasn't there fuel would just run out. A standard fuel tester with its castellated notched top fits the horizontal rod and a push up allows fuel to flow in to the tester tube. While pushed fully up twist the tester to the right and the valve will lock open & you can drain the fuel in the tank in to a container. A good quality brass reliable fuel drain. I have never had to replace one, just the O-ring.

All good BUT

 

• To what What Curtis fuel drain are you referring??

AND

• What part number and/or dimensions are the "O" rings.😈

Edited Sunday at 04:53 AM by skippydiesel