Re: SER1 smiths heater fittings

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The thread size in the thermostat housing and the inlet pipe boss is 
1/2"BSP. The correct heater pipe size is 5/8" Dia. The correct couplings are 
therefore 1/2" to 5/8" with 5/8" BSP Nuts and pipe nipples.

In the UK, I have found the combination 1/2" to 5/8' virtually impossible to 
obtain. You might be lucky digging through boxes at a steam rally. 1/2" or 
3/4" upwards are no problem.
Taps and dies are still around if you fancy making your own up!...

There is no modern metric equalent pipe size available for 5/8". I had to 
send for some 5/8" imperial pipe from Canada. The metric 15mm or 22mm is 
either too small or oversized! However it can be made to work, but doesn't 
look quite right because 1/2" BSP/15mm couplings are available.

Hope this helps.

Martin

----- Original Message ----- 
From: Tony Boyle
To: series1@xxxxxxxxx.xxx
Sent: Saturday, July 23, 2005 10:19 AM
Subject: SER1 smiths heater fittings


Hi,

Can anyone tell me what size/ type of thread is used on the water pump inlet
pipe where the smiths heater pipe connects into it. The parts catalogue
shows a reducing union part no. 213276. I can't get this or the pipes so I
thought I would try my local engineering supplier for a converter to fit
standard plumbing copper pipe. Unless anyone knows where I can get the 
original
parts?

Thanks

Tony Boyle.




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