Pressure regulator installation

[Special]

I have a Petrol King pressure regulator and I have a question about mounting this device.
Does it have to be parallel to the ground like this -

Or It can be mounted vertically -


I tried to find installation manual for it , but no luck.
Let me know what you think about it.

[vandor]

I doubt it matters.

[So Cal Mark]

any mounting direction is okay

[Special]

Thank you.
I thought so too , but on all the pictures saw it is always mounted with adjustment nut facing up.

[So Cal Mark]

that would make it easier to adjust

[boogiedude]

careful with the adjustment, I have a filter king regulator+filter assembly(essentially what you have there, but with a nice big glass bowl beneath it with a filter) and when you take the acorn nut off, there is a brass screw beneath it that you use to adjust the pressure. When i adjusted mine i had very little thread on the screw left for the acorn nut to grab and it took the threads off with very little effort. So be very careful tightening the nut back up