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  #1  
Old 09-21-2013, 06:26 PM
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jbailey52 jbailey52 is offline
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Check valve

Hey guys,
I have a customer who has a system installed on a hill. The bottom pgp rotors weep when off ... It's not leaking through the valve, just the lines themselves. I know some heads have check valves installed already but what are my options with this?
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Old 09-21-2013, 06:51 PM
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Mike Leary Mike Leary is online now
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Quote:
Originally Posted by jbailey52 View Post
Hey guys,
I have a customer who has a system installed on a hill. The bottom pgp rotors weep when off ... It's not leaking through the valve, just the lines themselves. I know some heads have check valves installed already but what are my options with this?
You should be able to get Hunter LDCs for the PGPs, they are cheap, and that would be my first suggestion. If the drop is too much, you might have to consider Hunter "lipstick" LDCs.
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Old 09-21-2013, 07:31 PM
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jbailey52 jbailey52 is offline
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Originally Posted by Mike Leary View Post
You should be able to get Hunter LDCs for the PGPs, they are cheap, and that would be my first suggestion. If the drop is too much, you might have to consider Hunter "lipstick" LDCs.
Thanks. Are they referred to as something else? I can find any product info.
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Old 09-21-2013, 08:19 PM
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Mike Leary Mike Leary is online now
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Originally Posted by jbailey52 View Post
Thanks. Are they referred to as something else? I can find any product info.
Sorry, they are called a "low-drain-check valve.". As I recall, they were just a rubber gasket and keeper.
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Old 09-21-2013, 09:05 PM
zman9119 zman9119 is offline
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The add-on Mike is trying to refer to is the Hunter HCV.



http://www.hunterindustries.com/irri...cv-check-valve
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Old 09-22-2013, 01:58 AM
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cjohn2000 cjohn2000 is offline
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You should be able to buy the check valves that go in the bottom of the head. Theyre just a filter with a circular piece of rubber and a toothed clip to hold it in place. I believe the add in check valve is good up to 10' of elevation change. Anything more and your probably going to have to go the HCV route.
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Old 09-22-2013, 10:56 AM
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grassman177 grassman177 is offline
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i started to use the built in check valves in the heads as options. really like it, of course under 10ft. never looked into more elevation drop check valves. ishould
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Old 09-22-2013, 12:44 PM
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cjohn2000 cjohn2000 is offline
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Originally Posted by grassman177 View Post
i started to use the built in check valves in the heads as options. really like it, of course under 10ft. never looked into more elevation drop check valves. ishould
I always liked Hunters add on CV's. I understand that there is a heavier spring in the SAM heads. Even Hunter's rotor CV works across more than one head. Alot less to stock.
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Old 09-22-2013, 02:45 PM
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Mike Leary Mike Leary is online now
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Originally Posted by cjohn2000 View Post
I always liked Hunters add on CV's.
Me too, especially since I used so many Toro "Stream-Rotors".With a large-bladed screwdriver, they can be adjusted for drop, but care must be taken to not over-tighten them, as friction loss will kill you.
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Old 09-22-2013, 07:05 PM
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cjohn2000 cjohn2000 is offline
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Originally Posted by Mike Leary View Post
Me too, especially since I used so many Toro "Stream-Rotors".With a large-bladed screwdriver, they can be adjusted for drop, but care must be taken to not over-tighten them, as friction loss will kill you.
I saw a thread in check valve for a 570 popup, same vintage as the four screw nozzle in it. The check valve looked like it had to be inserted into the body from the top and installed with a socket.
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