Pressure reducing valve

[Dg8]

Hi all,
My pressure reducing value has failed on my unvented cylinder, my plumber has already changed the potable expansion vessel and prv and cold water is still running through the tundish. I hate being the annoying Googling customer, but I've found a Honeywell pressure reducing value on Screwfix for about £40, but my plumber says you can't just use a 'generic' one and needs to be the 'correct one for my cylinder' priced at £120 +vat. Does that sound reasonable? It's just a standard cylinder that's installed in most Taylor wimpy houses. I just don't know if I should question it out not?
Thanks so much for your time

 

[Harvest Fields]

It has to be the correct one for the cylinder and you have to be G3 qualified. Also you need to remove your postcode from your profile.

 

[Harvest Fields]

It has to be the correct one for the cylinder and you have to be G3 qualified. Also you need to remove your postcode from your profile.

Much better mate. On an open forum like this you need to be careful.

 

[Dg8]

It has to be the correct one for the cylinder and you have to be G3 qualified. Also you need to remove your postcode from your profile.

Thanks for the profile spot. The plumber is G3. So everything seems about right?

Much better mate. On an open forum like this you need to be careful.

Thank you! So everything seems about right? My plumber is G3.

 

[Harvest Fields]

As long as he is G3 he will know the exact one to purchase. Let him do what he is trained to mate. Will be cheaper for you in the long run.

 

[Dg8]

As long as he is G3 he will know the exact one to purchase. Let him do what he is trained to mate. Will be cheaper for you in the long run.

Will do... You're not him are you??

 

[Harvest Fields]

Will do... You're not him are you??

No mate. I’m in the Midlands.

 

[Dg8]

Who's the weird duck that keeps posting odd things?

 

[Harvest Fields]

Who's the weird duck that keeps posting odd things?

Rather not say mate

 

[townfanjon]

Who's the weird duck that keeps posting odd things?

Just an internetretard

 

[king of pipes]

Shaun is dealing with our new duck friend chaps . Kop

 

[ShaunCorbs]

Depends if the cylinder has a warranty and you want to keep in you have to use manufacturer spec parts

If you don't have a warranty then aslong as the valve is in spec then I would say it's fine

 

[Dg8]

Without wanting to

Depends if the cylinder has a warranty and you want to keep in you have to use manufacturer spec parts

If you don't have a warranty then aslong as the valve is in spec then I would say it's fine

Thanks. The cylinder is out of warranty. I was just wondering why if the cylinder requires 3 bar pressure, my mains is just over 6, it would it need a 'special' pressure reducing valve when any can be bolted into the 22mm cold feed and reduce the pressure to the recommended value. The one I was looking at was a decent make (Honeywell), is designed for unvented cylinders and has excellent reviews. It's the difference between £40 and £120+ for the part.

 

[Harvest Fields]

Every engineer is different. I would only fit the one specified by the manufacturer.

 

[ShaunCorbs]

Mega flow cylinder?

 

[Dg8]

Mega flow cylinder?

Range tribune HE 150l. It's a Caleffi pressure reducing valve that's failed. Thanks

 

[ShaunCorbs]

https://www.NoLinkingToThis/p/strom...mm/1610v#product_additional_details_container

Depending on the spec

 

[Dg8]

https://www.NoLinkingToThis/p/strom...mm/1610v#product_additional_details_container

Depending on the spec

Looks similar, but mine is not joined to the pressure release valve. I was considering
https://www.NoLinkingToThis/p/honeywell-pressure-reducing-valve-x/4671j

 

[ShaunCorbs]

All down to the person fitting it

 

[chris watkins]

Without wanting to


Thanks. The cylinder is out of warranty. I was just wondering why if the cylinder requires 3 bar pressure, my mains is just over 6, it would it need a 'special' pressure reducing valve when any can be bolted into the 22mm cold feed and reduce the pressure to the recommended value. The one I was looking at was a decent make (Honeywell), is designed for unvented cylinders and has excellent reviews. It's the difference between £40 and £120+ for the part.

Why not, go for it stick your 6 bar one on in place & if the safety valves start discharging just cap em off.
Why do you think the Government made it a requirement under the Building Regulation Part G (3) that to work on these systems you need to have passed a competency test?
If anything went wrong you would not have a leg to stand on.
If it went to a flash steam explosion you would likely have no legs or arms or house.

Employ a pro, let them do the correct job, is it really worth £40????

 

[chris watkins]

Looks similar, but mine is not joined to the pressure release valve. I was considering
https://www.NoLinkingToThis/p/honeywell-pressure-reducing-valve-x/4671j

That is a dial up & not a fixed rated & very wrong!!!!
This is exactly my point, you don't understand what you are doing, what the requirements are & therefore the dangers.

 

[Dg8]

That is a dial up & not a fixed rated & very wrong!!!!
This is exactly my point, you don't understand what you are doing, what the requirements are & therefore the dangers.

T
. I have no intention

That is a dial up & not a fixed rated & very wrong!!!!
This is exactly my point, you don't understand what you are doing, what the requirements are & therefore the dangers.

I have no intention of attempting any work myself. The dial-up Honeywell valve is approved for use on unvented cylinders. I may not have a G3 certificate, but I'm also not an idiot and do understand how system works

 

[chris watkins]

The dial-up Honeywell valve is approved for use on unvented cylinders.

NO IT IS NOT!

 

[chris watkins]

& with all due respect by your last statement you do not fully understand.

This is where I think your interest in what your Plumber is going to install goes beyond just that (interest).

I teach the Part G course so I think I know what I am talking about technically.

 

[Dg8]

NO IT IS NOT!

Ok, Honeywell says it is. Maybe they need to get themselves a G3 certificate