Can't close Darkside Ball Shutoff Mini-valve

[c_for]

I picked up an order yesterday which included two of the Darkside Ball Shutoff Mini-Valve's. I won't be building for another few days but had time to look through the parts and make sure they look fine. I tested out the ball shutoff mini valves but I could not get them to close. It seems unlikely that two identical parts would have the same problem so I figure i'm doing something wrong.

I've used slightly more than what I think would be a reasonable amount of force(Definitely more than I would be comfortable with if the lines were connected and filled). I've tried lifting the knob prior to turning it. There's not a lot else I can think of doing other than a return.

[Hooded]

It does take a fair bit of force to open mine, but it opens. Don't think my Bitspower ones are much easier though.

[DazMode]

They pretty stiff especially at first. Rotate them few times to loosen up.

It is pure friction, so there is no lifting or pushing handle up and down.

[c_for]

Thanks for the quick response. I'll give it some more force when I finish work tonight and see if I can get it closed.

[Izerous]

I have found valves, quick disconnect and similar fittings are quite often a bit easier to manipulate when wet instead of completely dry.

[c_for]

Thats a great tip Izerous. I'll try submersing them in a bowl of water while turning them.

[DazMode]

Thanks for the quick response. I'll give it some more force when I finish work tonight and see if I can get it closed.

It sure can, because I test them all before I ship.

[c_for]

Got them closed. Thanks all. They're still pretty tight but I suppose thats a hell of a lot better than too loose.