I have a Rainbird APAS-100 which has stopped consistently opening when powered.

I've isolated the problem to something in the "AVA-1 Actuator & Piston Assembly" - Rainbird part 145235. However, trying to locate the replacement part (or an entire replacement valve to harvest parts from) has been fruitless; the APAS-100 and APAS-075 have been long-since discontinued and I cannot find any source of parts.

parts diagram

What can I do to get a working valve in place without the headache replacing the entire valve assembly?


Champion Irrigation makes a valve called the PCL-100 which is compatible with the body from the APAS-100 (and a PCL-075 which ought to fit the body of the APAS-075), which are available as of this writing.

The specific part that I got is the PCL-100-C (not sure what the C means and if the B model works in the same way).

The valve fit perfectly onto the APAS-100's body (though the wires from the solenoid were a bit of a tight fit when installing, I had to take some parts off the neighboring valve to get it screwed on). In initial testing, it seems to function just fine on the APAS-100's body.


installed 2

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I did a search earlier today for the same Rainbird valve and found your post. I went to my local Orchard Supply and they had a valve that looked similar to the champion valve mentioned. It's an Orbit brand and model #57030. The only difference is that the Orbit is a brass body that will need to thread in to the plastic. I just installed it and it works perfectly. However, I don't know if using the brass body in the plastic housing is a good thing or not. Time will tell. The instructions were really easy to follow for adjusting the flow. The only thing I noticed is that I had to have the manual valve turned all the way closed for me to even be able to start threading the new Orbit valve in.

I hope someone finds this information useful.

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  • This sounds like a review for the product, rather than an answer to the question. Are you suggesting that the OP replace the valve with the one you've mentioned? – Tester101 Jun 2 '14 at 10:03
  • I don't claim special expertise here, but I can't find anyone else who recommends joining PVC directly to brass, and local codes depending on where you live probably teach away from this. I might suggest using a coupling designed for PVC-brass connections. homeguides.sfgate.com/connect-pvc-brass-plumbing-26699.html – johnwbyrd Jul 31 '16 at 21:35

Research from http://www.sprinklerwarehouse.com/Rain-Bird-APAS-075-3-4-in-Anti-Siphon-Valve-p/apas-075.htm suggests that there exist three possible replacement parts for the actuator assembly.

Rain Bird stopped making the APAS series in 2008 with no replacement part assembly. And the widths between the inflow and outflow pipes are different on the ostensible replacements, making up conversion to the modern series of valves difficult.

Here are the only two modern parts that the link recommends as drop in actuator replacements:

311A Irritrol

Champion PCL-100-C

Neither of these items are likely to be available at your local Home Depot or Lowes; they may be available at a professional sprinkler distributor.

Make sure to check whether you will need the 3/4" or the 1" connectors before buying.

In the long term, you will probably do better to cut out the whole valve assembly and replace it all with a new DAS/ASVF-075 unit. This will require cutting and gluing new pipe.

I found this all out the hard way. Good luck.

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