47-2 lwco with autofill hammering at end of feed

rick_29

I had a similiar problem .Iinstalled a tee with a arrestor and it worked But also see if you have a pressure reducing valve, it may be bad, I had city water pressure at 150 and the reducing valve failed .something to look at

scottPW

47-2 lwco with autofill hammering at end of feed

Hi, I have a customer with a 47-2 lwco and autofill (both brand new) that, at the end of a feed, begins to flutter or hammer the inlet water line loudly. My guess is that because of the mechanical design of the fill, it does not shut off immediately like a solenoid type. Will a water hammer arrestor solve this? It flutters for a good 20 seconds. thanks, scott

Tommy_4

47-2

Try disconnecting the piping on the boiler side of the LWCO and check for restrictions. You'll probably find a scale build-up right at the nipple that enters the bottom of the boiler. Clean and flush this conection. Usually this causes the boiler to overfill. You could also do a broken union test on the LWCO. If he valve closes with out hammerring during the test, the feeder is OK and start looking for the restriction.

Empire_2

incomming water pressure

Try throttling the incomming water valve down. Too much pressure will cause this.

Mad Dog_2

I agree throttle it down

and also make sure all the piping is secure. Some good pipe insulaTION and strapping will quiet things down too./ M ad Dog

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Anthony Menafro

#47-2

Make sure that your piped in properly. If you pipe it in backwards you'll get the same flutter while it's trying to close.

Anthony