NPT and BSP threads
 

I am looking at getting some water filters, 20 inch housings, with 3/4
inch NPT female connections in plastic tops. Can I get away with
screwing in 3/4 BSP taper male brass compression fittings, using a
good wind of PTFE tape??
Both are 14 TPI and the nominal NPT is 1.050 inch OD and BSP is
fractionally smaller at 1.041 inch OD.
TVMIA

NPT and BSP threads
 

"CS" wrote:

I am looking at getting some water filters, 20 inch housings, with
3/4
inch NPT female connections in plastic tops. Can I get away with
screwing in 3/4 BSP taper male brass compression fittings, using a
good wind of PTFE tape??

No.

NPT is a tapered thread.

BSP is a straight thread.

You cann't get there from here.

Lew

NPT and BSP threads
 

"Lew Hodgett" wrote in message
...

"CS" wrote:

I am looking at getting some water filters, 20 inch housings, with 3/4
inch NPT female connections in plastic tops. Can I get away with
screwing in 3/4 BSP taper male brass compression fittings, using a
good wind of PTFE tape??

No.

NPT is a tapered thread.

BSP is a straight thread.

You cann't get there from here.

Lew

Actually, it's possible to get an adapter it seems...

http://www.metricmcc.com/pricecatalog/8-849.htm
http://www.suspensionconnection.com/...con/90001.html

I was curious, so I looked it up.

--
"j" ganz @@
www.sailnow.com

NPT and BSP threads
 

"Capt. JG" wrote:

Actually, it's possible to get an adapter it seems...

We represent some European instrument companies and work with the
importer to supply adapters from BSP to NPT when req'd.

Strictly a convenience item.

Lew

NPT and BSP threads
 

On Tue, 20 Oct 2009 11:05:43 -0700, "Capt. JG"
wrote:

"Lew Hodgett" wrote in message
.. .

"CS" wrote:

I am looking at getting some water filters, 20 inch housings, with 3/4
inch NPT female connections in plastic tops. Can I get away with
screwing in 3/4 BSP taper male brass compression fittings, using a
good wind of PTFE tape??

No.

NPT is a tapered thread.

BSP is a straight thread.

You cann't get there from here.

Lew

Actually, it's possible to get an adapter it seems...

http://www.metricmcc.com/pricecatalog/8-849.htm
http://www.suspensionconnection.com/...con/90001.html

I was curious, so I looked it up.

Actually old chap, under the use and custom policies of Usenet you are
cheating :-)
Cheers,

Bruce
(bruceinbangkokatgmaildotcom)

NPT and BSP threads
 

"Bruce In Bangkok" wrote in message
...
On Tue, 20 Oct 2009 11:05:43 -0700, "Capt. JG"
wrote:

"Lew Hodgett" wrote in message
. ..

"CS" wrote:

I am looking at getting some water filters, 20 inch housings, with 3/4
inch NPT female connections in plastic tops. Can I get away with
screwing in 3/4 BSP taper male brass compression fittings, using a
good wind of PTFE tape??

No.

NPT is a tapered thread.

BSP is a straight thread.

You cann't get there from here.

Lew

Actually, it's possible to get an adapter it seems...

http://www.metricmcc.com/pricecatalog/8-849.htm
http://www.suspensionconnection.com/...con/90001.html

I was curious, so I looked it up.

Actually old chap, under the use and custom policies of Usenet you are
cheating :-)
Cheers,

Bruce
(bruceinbangkokatgmaildotcom)


Heh...


--
"j" ganz @@
www.sailnow.com

NPT and BSP threads
 

On 20 Oct, 16:42, "Lew Hodgett" wrote:
"CS" wrote:
I am looking at getting some water filters, 20 inch housings, with
3/4
inch NPT female connections in plastic tops. *Can I get away with
screwing in 3/4 BSP taper male brass compression fittings, using a
good wind of PTFE tape??

No.

NPT is a tapered thread.

BSP is a straight thread.

You cann't get there from here.

Lew

Please re read - BSP with a taper male thread - which I can get easily.