Drilling out bigger res outlet

[UmHelp]

I just bought a new res for my new system and I would really like to drill out the outlet so I my hungry iwaki 20mdz gets fed properly. I am thinking that it should be pretty easy except for the fact that I cannot find a NPT tapping set. I probably need a special tap to make the correct threads??? Anyone where to find one??

[nikhsub1]

First what res? Second, do NOT USE NPT.

[UmHelp]

http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=318&products_id=4490

Alphacool Repack-cooling Slot-In Black Blue

Well I dont have the bits to actually make the holes/threads. If not NPT then what?

[XeonStrikeForce]

and exactly what is wrong with NPT?

I use it due to the fact its a standerd and majority of fittings use it, never a problem.

[UmHelp]

I think that NPT threads can crack/weaken certain acrylics so you should use NPSM. I will use whatever threads i can make and get fittings for. I just need to know where to find the tools to make the threads.

[clocker2]

What barbs do you want to use?
Probably the cheapest/easiest would be the DangerDen 'Hi-flo" barbs which take 9/16-18 threads.
You can find the tap at most Ace Hardware stores and it uses a 1/2" drill bit for the pilot hole.

[nikhsub1]

and exactly what is wrong with NPT?

I use it due to the fact its a standerd and majority of fittings use it, never a problem.
NPT is TAPERED, you will break/crack the plastic with a tapered thread.

[nikhsub1]

I think that NPT threads can crack/weaken certain acrylics so you should use NPSM. I will use whatever threads i can make and get fittings for. I just need to know where to find the tools to make the threads.
Why do you feel you need to make the threads bigger? You really don't at all... My res uses the same G1/4" thread, no problem and my pump is much more powerful than what you are using. Leave them alone and get 1/2" barbs.

http://www.dangerdenstore.com/product.php?productid=70&cat=34&page=1

make sure you select the G 1/4 BSPP and NOT the UNF 9/16-18

[XeonStrikeForce]

Ah Acrylics Ok ya machine type thread is safer with them, why you'd even want them in your system at all is the real question there!, just not reliable enough for my tastes.

FYI All the stuff I build is either PVC, Nylon, Derilen, Metal.

and for Optical effects: Plexi or Luxan

[UmHelp]

just making the hole bigger for fun. it cant really hurt to make the hole bigger anyway.:bday: :bday:

[nikhsub1]

just making the hole bigger for fun. it cant really hurt to make the hole bigger anyway.:bday: :bday:
Well you can, you can hork the res and waste your money... if you MUST make it bigger, go to G 3/8 which is BSPP 3/8" barbs for that size are here: http://www.cooltechnica.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=AQX-HIFLO-G38-12&Category_Code=Barb_Fitting

[XeonStrikeForce]

So for re-tooling I should get:

G 1/4th BSPP thread
G 3/8th BSPP thread
G 1/2 BSPP thread

? or what are the main standerds naturaly I don't want to buy a production tool that will only be used once so any help on the most required tools for making standerdised parts would apreciate it!

PS: Sorry for the thread jack but it was dead on topic so hope ya don't mind too much. Thanks.

[nikhsub1]

So for re-tooling I should get:

G 1/4th BSPP thread
G 3/8th BSPP thread
G 1/2 BSPP thread

? or what are the main standerds naturaly I don't want to buy a production tool that will only be used once so any help on the most required tools for making standerdised parts would apreciate it!

PS: Sorry for the thread jack but it was dead on topic so hope ya don't mind too much. Thanks.
The current move to standard is G 1/4 (BSPP 1/4") which BTW is about a 3/8" hole (same ID as 1/2" OD barb). Danger Den's blocks all use G 1/4" now... alphacool as well. Thermochill radiators and Cathar's blocks (the ones that he makes) use G 3/8" (BSPP 3/8"). NO one uses G 1/2".

[XeonStrikeForce]

Ah K so I aut to tool for G1/4 and G3/8. Thanks. Any other type taps you'd think would be handy for options?

[UmHelp]

The Iwaki pump's intake is uses 5/8 inch ID tubing if I am going to do this I would want a 3/4 inch hole and a 5/8inch tube fitting to go with that.