It's been a bad (plumbing) day at the office ... :-(

Arfa Daily · 2012-01-28T17:37:55+00:00

Bit of a long post, but stick with it ... :-)So, today, I finally got the time to go to our burger joint to fit the pressure reduction valve that I bought a couple of weeks back, to stop the 6 bar pressure relief valve ahead of the unvented water heater, from lifting off its seat all the time. For those who haven't seen the valve in my earlier posts, here it is :It has a 22 mm through bore, and comes complete with custom 22 to 15 mm reducing olives, as well as standard 22 mm olives, if you are going to fit it direct to 22 mm pipe. So far, so good. Off goes the water, on go the taps. All drained down, and three inches whipped out of the 15 mm pipe where it's going, in no time. I then fitted the compression nuts over the pipes, and then put the two sections of the reducing olives over the pipe ends, after carefully studying the supplied diagram to make sure that they were going in right. The diagram is quite clear, and the assembly order is exactly as you would expect. Basically, the 'inner' part of the olive comprises a 'straight' section about 5 mm long that fits into the body of the valve. Behind this, there is a 'flare' at about 45 deg that matches a correspondingly angled 'seat' in the valve body. Behind that is a 'conical' section of again about 45 deg, tapering down the opposite way to a 15 mm hole to accommodate the 15 mm pipe. This is the piece of the adaptor, that is going to grip down onto the 15 mm pipe. There is then a completely separate piece that is a brass ring about 5 mm deep, that has a corresponding conical seat inside its front face, and a square rear face to go against the inside face of the compression nut. Unfortunately, the online instruction sheet doesn't show this, so I've had to try and describe it.What should happen, is that as you pull up the compression nut, the conical seat of the outer ring, presses on the conical taper of the inner part of the adaptor, crushing it onto the 15 mm pipe. At the same time, the 45 deg flare a little...

Jan 28, 2012 20 Replies

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Michael A. Terrell 14 years ago

A minimum of 250 VAc, and non-polar. ;-)

You can't have a sense of humor, if you have no sense.

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It's been a bad (plumbing) day at the office ... :-(

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