Is it ok to use male tapered fittings for female flexi ends?

[WaterTight]

Or does the fact they are tapered mean the flexi might work it's way loose?

e.g.

https://www.NoLinkingToThis/p/floma...ression-adapting-male-elbow-15mm-x-1-2-/355kr

 

[Last Plumber]

Depends on whether the washer beds onto the end of the fitting before the thread tightens up. Other than that I can't see it matters.

 

[Ben-gee]

As above with the addition that if it’s in a vehicle or subject to movement then maybe apply some thread lock too.

 

[Harvest Fields]

Excuse my ignorance here. But why wouldn’t you use a 1/2” male x 15mm compression coupler? It has the correct surface for the female flexi and it is more reliable for the job. The flat washers sits flat on the surface of the 1/2” side.

 

[snowhead]

https://www.NoLinkingToThis/p/flomasta-compression-adapting-90-male-elbow-15mm-x-1-2-/44344