Oil pressure reducing valve

[Inverness]

hi guys, I'm planning to locate a new oil tank but the problem is the height will most likely to be greater than 4 meters from oil pump. I know you can use a oil pressure reducing valve have anyone used this before?.

 

[Chalked]

Used on in a cellar a few years ago.
Can’t remember the make. But had no problems.

 

[Inverness]

What can happen if you don't install a prv on a oil line if it's above 4 meters from burner.

 

[Chalked]

It can pass through the pump

 

[Inverness]

Ok