What do you call these / where can I buy them?

[goosander]

I'm in the process of replacing an ancient leaking Sunvic Duoval 3 port valve. Rather than replace with the same thing I decided to replace with a standard spring return Honeywell valve and get rid of the large duoval relay box. Since the old valve had what appeared to be 3/4" connections, I bought the replacement Honeywell valve with 3/4" connections in the hope of not having to alter any pipe.

Turns out the 3/4" fittings on the Honeywell valve are different to the old Sunvic one, so I can't reuse the old 'nuts' (see pic) and the new valve didn't come with any...

What do you call these 'nuts', and where can I buy some that will fit a honeywell valve with 3/4" connections?

Out of interest, any idea what fitting the old valve is - it appears similar to the 3/4" on the Honeywell valve but is slightly different size or thread so won't mate.

Help much appreciated as I'm rather stuck now...

 

[45yearsagasman]

Change the valve you bought for a standard 22mm valve. Cut and remove the old olives and discard the nuts. Use the new valve as supplied.

 

[ServiceNumpty]

http://www.toolstation.com/shop/Plumbing/d20/Compression/sd2697/Compression+Coupler+Male/p57822

Cut them out, 3/4MI into valve, 22mm compression onto pipe. You may need 3/4 olives onto the 22mm compression fitting.

 

[goosander]

Thanks, I did see those in screwfix but was trying to locate the equivilent of the 'nuts' in the photo. What you suggest will be plan B...

 

[ianmcd]

The wiring will not be the same , this is not a straight swap

 

[ianmcd]

your sunvic valve will have had a relay box fitted , you can not just swap it out

 

[Phill Peck]

The wiring will not be the same , this is not a straight swap

That will be tomorrow's post

 

[goosander]

I know the electrics are different and I'm OK with that side of things, just the plumbing causing problems - thanks.