some of my valves will take a pipe threaded piece and I never had them leak during use,---just up or down them to fit your hoses. 3/8 up to 1/2 or 1/2 down to 3/8 or whatever size you need and they work fine!
I prefer pipe threads myself,--its a lot simpler for me!


"A machine you build yourself is a vote for a different way of life. There are things you have to earn with your hands."