I am in the process of plumbing my Rocket Cellini and was wondering if there is a max water pressure I should be aware of. I believe my house pressure is around 110ppsi. Can"t seem to locate any guidelines for installation. Any help would be appreciated.

2.0 to 2.5 bar as measured by the pressure gage attached to your pressure regulator (which you most certainly need) while flowing some water through an empty portafilter.

Eric, I am going to pick up a pressure gauge from HD in a few, are there gauges that have read outs by BAR you are telling me??

No worries, it's easy to convert 2 BAR to PSI.

Dan, is there actually a pass thru pressure gauge that is sold? One that I just leave on the line? The ones that I have see in the pass are just to read and then remove?

Not sure what you mean; I put a tee on the line between the pressure regulator and espresso machine for the gauge.

Most pressure regulators, like this one, - http://www.chriscoffee.com/products/hom ... latorvalve have a 1/4" NPT port to which you can attach a pressure gage. Some (most?) inexpensive gages have 1/8" male NPT ends. Be careful here to avoid an extra trip - you need to match up the sizes.

javacrazed wrote:I am in the process of plumbing my Rocket Cellini and was wondering if there is a max water pressure I should be aware of. I believe my house pressure is around 110ppsi. Can"t seem to locate any guidelines for installation. Any help would be appreciated.

Hi
I'd recommend you inquire of the manufacturer. (They have e-mail contact details on their website).

The reason I suggest this is that pressure ranges differ from one machine to another. For example, mine specifies a range of between 2 and 6 as being required. I run it at 4.

It's probable you're going to need a pressure regulator anyway (and a filter/softener might be on the list too depending on your water supply).

As has been noted earlier, the better pressure regulators (Watts etc.) have a port specifically for a gauge which makes life simpler and less plumbing to do. Gauges are pretty cheap.

These gauges are directional. Having the dial face you right-side-up isn't important, having inflow to the "in" side and outflow coming out the "out" side is.

Most of the machines I have used have a max input of 4 bar. I measure that as static pressure, no flow. I run 3 bar static on my A3 which dips to around 2 bar with water flow.