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territorialmillworks

Info from Norgren about control valves that you need to know

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The Norgren valve on my hammer seized up pre-maturely after two years of light use.  I called a distributor who told me that there was not a single valve kit in any of the the US distributors.  Delivery on a new $275 valve, was 2-3 weeks.  This is the same valve used by many for Kinyon hammers.  I called Norgren direct and was told the same for cost and delivery time. I asked if this was an obsolete or low sale volume valve -- No..Asked about a kit and was told $68 and 2-3 weeks delivery.  When pressed, was told that they would have to pull one off the assembly line and assemble it for that valve body for an additional $50 with shipping within 48 hours. The one useful piece of info that I got was that Marvel Mistery Oil air tool oil and synthetic oil in the air compressor will swell the o-rings.  Yep, you guessed it....ran out of air tool oil and picked up MM oil at the big box and have use synthetic oil for everything......  Anyone want to recommend another valve?

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Thanks for the heads up.. I haven't dug into the guts on mine yet, any chance that the O-rings are standard, readily available at the auto parts store sizes?

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any chance that the O-rings are standard, readily available at the auto parts store sizes?

I bet they are......If that's the case then beware Marvel Mystery Oil users. I almost bought some at the thrift store in gal. jugs not long ago and it wouldn't have been unlike me to mix a little in with some air tool oil........... :ph34r:

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My kinyon used an SMC (Japanese) valve. I think the model was the 4244.  Not cheap but very high quality and moved a 100lb head at almost 200 BPM

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Mike-hr:   These are clearly non-standard o-rings....very thin.  They are so small as to be difficult to remove without scratching the spool.  My guess is the kit includes the spool and gaskets

 

Macbruce:  Parker was going to be my next stop as there is a distributor 4 miles from my house.  I'd really appreciate a part number for a valve with a 5 CV rating. 

 

Thx, K

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Mike-hr:   These are clearly non-standard o-rings....very thin.  They are so small as to be difficult to remove without scratching the spool.  My guess is the kit includes the spool and gaskets

 

Macbruce:  Parker was going to be my next stop as there is a distributor 4 miles from my house.  I'd really appreciate a part number for a valve with a 5 CV rating. 

 

Thx, K

Here it is..................Parker #     B743000XXA My cost over a year ago was $140

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