pressure reducing valve

I just got a brand new pressure reducing valve, but there are a lot of chips(see the photo attached) on the top when I take it out of the box. I am concerned if these chips make the top part get corrosion very easily. What are the top part made of and why the manufacturer paints it? I assume...

Hi I have a prv that I installed in a very accessible area of the home. I'm wanting to install a bypass for when guests come visit on the weekend so they have strong showers. I know the standard service bypass is 3 valves with 2 straddling the prv and one on the bypass loop. However, I'm not...