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hot cylinder connections

Postby hamish72 » Thu Oct 23, 2008 6:18 pm

Simple question to those who know ?

Hot storage cylinder in back boiler y plan the heating coil connectors on the cylinder are male and about 33mm diameter external

In and out connectors on cylinder are female of 31mm internal diameter

Are these in fact what are advertised as 1 1/4 inch connections

The only connectors I have found to connect 22mm (coil) and 28mm (water) are discribed as compression ?mm x ?" iron are these the correct items

Im good at electrics but rubish at plumbing so waiting in hope
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Simply Build It

Postby plumbbob » Thu Oct 23, 2008 10:35 pm

the two sizes are always referred to in inch BSP. The larger are 1" BSP and the smaller 3/4" BSP.

Screwfix code 83512 for the 1" ... 2-28mm-x-1
Screwfix code 85054 for the 3/4" ... 402-22mm-x

They are available as straight or elbow.
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