Help me find BSP hose barbs

CoolHand · 10-27-2003, 02:37 AM

I'm new here, and I'm looking for some info.

I'm in the process of retopping an old maze 3 that had a bunch of cracks starting around the barbs.

I really dug the clear top, but I don't want to replace them every three months, so I am going to replace the NPT barbs with copper or brass BSP or NPS oring seal barbs.

The only snag is, I can't find the durned things anywhere. I am also having a rough time finding the BSP taps.

Does anyone know where I can buy these barbs and taps?

I also know that I can just replace the top with aluminum or copper, but I like the lexan.

Any help will be most appreciated.

jaydee · 10-27-2003, 11:21 AM

Why would you want to use BSP (not USA standard, that's why they are hard to find in the USA)? It will not help anything. There is just a slight difference between that and the NPT (USA standard) that was originally used. Also the O-Ring barbs will probably cause more harm than good being they will need to be tightened much tighter (which is a bad thing) to get the O-ring to seal properly. Just use standard barbs, preferably plastic, and some clear RTV silicone and gently tighten the barbs in. Go maybe a 1/4 turn past the point of finger tight and then let the RTV setup over night. I have been using plexy glass on all my blocks for 3 years and have yet to crack one.

CoolHand · 10-27-2003, 02:37 PM

There is quite a bit of difference between BSP, and NPT. Thread pitch for one, but the big thing that I am concerned with is the fact that NPT has tapered threads, and BSP/NPS are straight thread. This is why the oring is there.

Also, the oring barbs don't need to be any more than finger tight to seal, another plus for them.

I know what I want, I'm just looking for a little help finding it.

jaydee · 10-27-2003, 02:58 PM

Quote:

Originally posted by CoolHand
There is quite a bit of difference between BSP, and NPT. Thread pitch for one, but the big thing that I am concerned with is the fact that NPT has tapered threads, and BSP/NPS are straight thread. This is why the oring is there.

Also, the oring barbs don't need to be any more than finger tight to seal, another plus for them.

I know what I want, I'm just looking for a little help finding it.

LOL, whatever.... Anyway

http://www.google.com/search?hl=en&l...=Google+Search

http://www.google.com/search?hl=en&l...=Google+Search

exists for a reason.

also try www.mscdirect.com and www.mcmaster.com

CoolHand · 10-27-2003, 03:28 PM

Congratulations, you can use google.

Give me a break would ya. I said I was new, not stupid. They don't necessarily go hand in hand.

I've googled until I can't google anymore, read McMaster Carr's catalog front to back, and back to front, and spent about 8 hrs rummaging around at MSC Direct's website. I came up with nothing.

I came here only as a last resort, (for reasons which you have made blatantly obvious) because I couldn't find what I was looking for anywhere else.

Those google searches sure do show me a bunch of entries with BSP and NPS in them. What they do not show me is anywhere that carries BSP hose barbs.

Next.

satanicoo · 10-27-2003, 04:10 PM

How about making one?

BillA · 10-27-2003, 07:13 PM

BSP barbs are made by Eldon James in CO
ask them who is your local distributor

Lmandrake · 11-26-2003, 07:20 AM

HMM, McMaster used to have them...

try here: http://mdmetric.com/

or google for "Maryland Metrics"

Lmandrake · 11-26-2003, 07:28 AM

HMM, McMaster used to have them...

try here: http://mdmetric.com/

or google for "Maryland Metrics"

killernoodle · 11-26-2003, 09:07 AM

I'll bet the metal barbs are your problem. Going with more metal barbs can only hurt the situation more. I have never had a block crack with plastic barbs, but all of the ones with metal barbs have cracked on me at some point.

10-27-2003, 02:37 AM	#1
CoolHand Cooling Neophyte Join Date: Oct 2003 Location: Deep Dark Missouri Woods Posts: 4	Help me find BSP hose barbs I'm new here, and I'm looking for some info. I'm in the process of retopping an old maze 3 that had a bunch of cracks starting around the barbs. I really dug the clear top, but I don't want to replace them every three months, so I am going to replace the NPT barbs with copper or brass BSP or NPS oring seal barbs. The only snag is, I can't find the durned things anywhere. I am also having a rough time finding the BSP taps. Does anyone know where I can buy these barbs and taps? I also know that I can just replace the top with aluminum or copper, but I like the lexan. Any help will be most appreciated. __________________ Professional Amateur

10-27-2003, 02:37 PM	#3
CoolHand Cooling Neophyte Join Date: Oct 2003 Location: Deep Dark Missouri Woods Posts: 4	There is quite a bit of difference between BSP, and NPT. Thread pitch for one, but the big thing that I am concerned with is the fact that NPT has tapered threads, and BSP/NPS are straight thread. This is why the oring is there. Also, the oring barbs don't need to be any more than finger tight to seal, another plus for them. I know what I want, I'm just looking for a little help finding it. __________________ Professional Amateur

10-27-2003, 03:28 PM	#5
CoolHand Cooling Neophyte Join Date: Oct 2003 Location: Deep Dark Missouri Woods Posts: 4	Congratulations, you can use google. Give me a break would ya. I said I was new, not stupid. They don't necessarily go hand in hand. I've googled until I can't google anymore, read McMaster Carr's catalog front to back, and back to front, and spent about 8 hrs rummaging around at MSC Direct's website. I came up with nothing. I came here only as a last resort, (for reasons which you have made blatantly obvious) because I couldn't find what I was looking for anywhere else. Those google searches sure do show me a bunch of entries with BSP and NPS in them. What they do not show me is anywhere that carries BSP hose barbs. Next. __________________ Professional Amateur

11-26-2003, 07:20 AM	#8
Lmandrake Cooling Neophyte Join Date: Nov 2001 Location: D.C. Posts: 26	HMM, McMaster used to have them... try here: http://mdmetric.com/ or google for "Maryland Metrics" __________________ The technology is within the reach of even the smallest nuclear power.

11-26-2003, 07:28 AM	#9
Lmandrake Cooling Neophyte Join Date: Nov 2001 Location: D.C. Posts: 26	HMM, McMaster used to have them... try here: http://mdmetric.com/ or google for "Maryland Metrics" __________________ The technology is within the reach of even the smallest nuclear power.

10-27-2003, 11:21 AM	#2
jaydee Put up or Shut Up Join Date: Dec 2001 Location: Spokane WA Posts: 6,506	Why would you want to use BSP (not USA standard, that's why they are hard to find in the USA)? It will not help anything. There is just a slight difference between that and the NPT (USA standard) that was originally used. Also the O-Ring barbs will probably cause more harm than good being they will need to be tightened much tighter (which is a bad thing) to get the O-ring to seal properly. Just use standard barbs, preferably plastic, and some clear RTV silicone and gently tighten the barbs in. Go maybe a 1/4 turn past the point of finger tight and then let the RTV setup over night. I have been using plexy glass on all my blocks for 3 years and have yet to crack one.

10-27-2003, 04:10 PM	#6
satanicoo Cooling Savant Join Date: Nov 2002 Location: portugal Posts: 635	How about making one?

10-27-2003, 07:13 PM	#7
BillA CoolingWorks Tech Guy Formerly "Unregistered" Join Date: Dec 2000 Location: Posts: 2,371.493,106 Posts: 4,440	BSP barbs are made by Eldon James in CO ask them who is your local distributor

11-26-2003, 09:07 AM	#10
killernoodle Thermophile Join Date: Sep 2002 Location: Charlotte, NC Posts: 1,014	I'll bet the metal barbs are your problem. Going with more metal barbs can only hurt the situation more. I have never had a block crack with plastic barbs, but all of the ones with metal barbs have cracked on me at some point. __________________ I have a nice computer.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)