Wanted: North American 3/5 valve RPZ test kit

[PDPH]

Hi All,

A long shot I know but if anyone's got one of these that they're not using I'll happily give it a home.. And you some cash..

Thanks,



Dennis

 

[PlumbBobBob]

have you had a look on ebay usa? dot com i would think

 

[PDPH]

Thanks Steve, I've already looked but I was trying to avoid paying the import duty/taxes! I had hoped that someone might have one due to upgrading/choosing not to re-qualify etc..

I'll wait for a week and if no joy in the UK I'll order it from the US!

Cheers!

 

[stevetheplumber]

want to educate me as to what this is ?

 

[PDPH]

Hi Steve,

RPZ (Reduced Pressure Zone) valves are used in many commercial plumbing situations to prevent backflow and backsiphonage (up to and including a fluid category 4 risk). They must be tested on installation and then again every 12 months by a qualified tester (with calibrated test equipment).

There are two methods of testing the valves - the North American and the European method. Most testers are qualified to test using only one method as the equipment used is different for each. Both methods rely on measuring the pressure differentials between the valve's components.

The North American method allows for either a 3 or 5 valve test kit to be used at the choice of the tester (the difference is that the two extra valves are to allow for easier bleeding of air).

For the extremely interested, this is the type of thing that I'm looking for:

Backflow Test Kits, 2 Valve, 3 Valve and 5 Valve– Mid-West Instrument

And there's a bit of information on RPZs on my website:

RPZ Valve Testing | Pipe Dreams Plumbing and Heating

Hope that helps!




Dennis