Drain thread Size...??
Thread Starter
Race Director
Joined: Jan 2006
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Drain thread Size...??
I'm to going make a drain system for my ProCharger similar to the ones I've seen here on the forum, and I was wondering if anyone knew the thread size of the drain plug. That way I can fabricate the system, and install it at my next drain interval. Thanks.
Race Director
Joined: Oct 2005
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From: Saint Albans, WV
I used the Parker part #F50G-S (#5BOSS-1/4NPT). The thread size in the ATI head unit is 1/4" NPT but the fitting above has a straight (non tapered) male thread with o-ring on the head unit side and 1/4" NPT female on the outlet side.
Bruce
Bruce
Thread Starter
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Sorry, Bruce. You lost me. I'm not sure what you're referring to with the "fitting above". Is this the fill port? The drain fitting on the bottom of my head unit seems to be larger than 1/4". The Parker piece.... it threads into the bottom of the head unit with an O-ring for a seal and the 1/4"NPT that then attaches a ball valve, or some type of on/off valve? Is this correct. Can I get this Parker piece at a plumbing supply? Thanks for your help.
Last edited by EuroRod; Jul 12, 2007 at 05:17 PM.
Race Director
Joined: Oct 2005
Posts: 14,555
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From: Saint Albans, WV
Sorry, Bruce. You lost me. I'm not sure what you're referring to with the "fitting above". Is this the fill port? The drain fitting on the bottom of my head unit seems to be larger than 1/4". The Parker piece.... it threads into the bottom of the head unit with an O-ring for a seal and the 1/4"NPT that then attaches a ball valve, or some type of on/off valve? Is this correct. Can I get this Parker piece at a plumbing supply? Thanks for your help.
Instructor
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Thread Starter
Race Director
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Made it to the hydralic shop today, and picked up the fitting(1/4"BOSS w/O-ring on one side, 1/4" NPT on the other) and the Parker ball valve. The valve is just like the one on the pic, complete with yellow lever.
Expensive little sucker !!!!
Expensive little sucker !!!!
Race Director
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From: Saint Albans, WV
Bruce
Last edited by saplumr; Jul 13, 2007 at 10:12 PM.
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Instructor
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Speaking of "bad information"...I have no idea where you came up with 1/2x20 but you should make sure you know what you're talking about before you speak. Take that 1/2x20 tap or fitting and try to screw it into your drain outlet. It won't screw in because it's 1/4 npt. Sorry but your info is incorrect!
Instructor
Joined: Mar 2006
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Ha ha, no really it really is 1/2-20 and sealed with an o-ring. (otherwise known as -5)
This caped crusader is moving on, if people want to screw up their head units with the wrong fitting I guess that's their business. Maybe you can send SAPLUMR the bill...
Last edited by LS2BYU; Jul 15, 2007 at 04:05 PM.
Instructor
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Self explanatory. Picture of 1/2-20 drainplug, the hole it fits into, a 1/2-20 thread chaser in the hole and a 9/16-18 chaser that doesn't fit.
Burning Brakes
Joined: Jul 2005
Posts: 779
Likes: 2
From: Bloomingdale Illinois
LS2BYU
You are absolutely correct on the 1/2 -20
the reciept above was for the ones I sent back because they were incorrect.
I cannot find the correct reciept to take a pic of.
I have all my part#'s on a list needed to make my drain kit and
the correct part # is "6405-05-02"
and believe me they fit perfect and are 1/2 -20
sorry for my confusion..
.
.
You are absolutely correct on the 1/2 -20
the reciept above was for the ones I sent back because they were incorrect.
I cannot find the correct reciept to take a pic of.
I have all my part#'s on a list needed to make my drain kit and
the correct part # is "6405-05-02"
and believe me they fit perfect and are 1/2 -20
sorry for my confusion..
.
.
Instructor
Joined: Mar 2006
Posts: 107
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Wow, that's a real shocker.
1/4" pipe is larger than the 1/2-20 drain plug so screwing it into a 1/4" pipe cap wouldn't cause damage.
The drain plug I pictured is out of a P1SC/D1SC the drain plug out of my F2 is the exact same part. 1/2-20 boys.
1/4" pipe is larger than the 1/2-20 drain plug so screwing it into a 1/4" pipe cap wouldn't cause damage.
The drain plug I pictured is out of a P1SC/D1SC the drain plug out of my F2 is the exact same part. 1/2-20 boys.
Last edited by LS2BYU; Jul 15, 2007 at 05:35 PM.
Instructor
Joined: Mar 2006
Posts: 107
Likes: 0
LS2BYU
You are absolutely correct on the 1/2 -20
the reciept above was for the ones I sent back because they were incorrect.
I cannot find the correct reciept to take a pic of.
I have all my part#'s on a list needed to make my drain kit and
the correct part # is "6405-05-02"
and believe me they fit perfect and are 1/2 -20
sorry for my confusion..
.
.
You are absolutely correct on the 1/2 -20
the reciept above was for the ones I sent back because they were incorrect.
I cannot find the correct reciept to take a pic of.
I have all my part#'s on a list needed to make my drain kit and
the correct part # is "6405-05-02"
and believe me they fit perfect and are 1/2 -20
sorry for my confusion..
.
.
No problem at all, you weren't rude about it. I just didn't want to see someone screw up their head unit.
BTW the "05" part of the part number is the thread size. -5.
Burning Brakes
Joined: Jul 2005
Posts: 779
Likes: 2
From: Bloomingdale Illinois
I have $134 in credit at this Hydraulic company because I guessed on the fittings twice.
LS2BYU is 100% correct on the 1/2-20
.
The number has been on my scratch board for 2 months or so I would not forget it and order the wrong size again and it's still there.
.
.
.
Last edited by C6dude; Jul 15, 2007 at 05:59 PM.
Race Director
Joined: Oct 2005
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From: Saint Albans, WV
First,(right or wrong) I must apologize for spouting off, it's just no like me. However..I did attempt to screw my plug into a 1/2-20 die and it clearly does not go in, nor does a 1/2-20 tap screw into a 1/4npt cap. So the question is if my plug perfectly screws into a cap why doesn't the 1/2-20 tap if it's "so much smaller"?