Compressor Model #

I've lost the parts book for a compressor I own and I need a part. It's the check valve that screws into the tank. It's a Sears 4 horse power, it's about 20/25 years old, twin cylinder, oiled, horizontal 20 gallon tank. Could some supply me with a model number for this compressor? Sears won't deal with you unless you have a part/model number.
Thanks
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This is Turtle.
ernien , Go down to a appliance parts or small engine place and bring the old one with you and tell the man you want a air check valve just like this and he usely will hand you one or tell you where to get one just like it.
TURTLE
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Some compressor check valves also act as pressure bleeders to release pressure from the piston tops before restart. Look to see if your check valve has a small hole drilled into the side of it. If so, it's probably of this type. Either way, most standard type auto parts stores can usually help with the proper part. I think some of those units were made by Campbell Hausfield during that era, but I'm not for sure. Also, have you tried taking it apart to clean it? Usually a spring, piston or ball, and a seating area, makes up a check valve.
RJ

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This one uses a bleed valve built into the pressure switch. The check valve came apart and's laying in the tank, too much of a PITA to get parts out. I've got a sears parts center fairly close, but they say their system needs a model/part#. The unit's made by DeVibliss(found tag on bottom of tank), I think I found the same compressor on a site that sell parts for them. I'm going to try giving sears a number I got off that site for a valve.

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ernienDELETETHIS@invalid wrote:

It's just a frigging check valve :-) Seriously if you have the pressure relief built into the switch any check valve will work. Take what's left so you can match threads and genders to a real hardware store of better yet a mechanics tool repair shop and they will have what you need. Probably for less than the shipping charge Sears will sock you.
Just be certain to put the valve in the right direction. Air flow in direction of arrow on valve. Dave
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No it's not ;)

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ernienDELETETHIS@invalid wrote:

OK i'll bite. It's not a gasoline engine model so that rules out an unloader, and it has the bleed built into the switch so that rules out a Load Genie. What makes this one special? I can't see it from here but it sounds like an intank check valve with a compression fitting inlet along with a port for the bleed valve.

Dave :-(
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Correctomundo..../or close enough:() Sears has them once I found the correct part# cac-437-1, $12 + $4 shipping. Problem solved.

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