Riello 40 oil pump

[obleo]

I fitted an Riello 40 oil pump to an RDB burner and (to my surprise) it seems to work fine.
Anyone know of any reason why this pump substitution may be a problem, long term or otherwise?

 

[obleo]

[h=2]If anyone here knows any reason why these two should not be married, speak now or forever hold your peace[/h]

 

[lame plumber]

looking at tech spec same pump!

 

[Roger Welton]

Wash pressure is different, use different coil arrangement and different hp oil line fitting. But if you've got it on and its working I'd say you're good top go. Though personally I carry both on the van as wouldn't want to chance a problem.

 

[lame plumber]

been looking at wrong tech speck then doh

 

[SimonG]

I fitted an Riello 40 oil pump to an RDB burner and (to my surprise) it seems to work fine.
Anyone know of any reason why this pump substitution may be a problem, long term or otherwise?

Why??

 

[obleo]

The eternal question.

 

[lame plumber]

done well to get that to fit then, now i look they totally different, ps please define "wash rate" is that 30kg/hr at 12 bar spec

 

[Roger Welton]

wash pressure = pressure generated during purge, older pumps were around 4 bar in order to open the oil rams where fitted.

 

[SimonG]

Can we please talk psi for the less educated ( me )

 

[Roger Welton]

4 bar = ...(runs to look up).....just under 60psi

 

[lame plumber]

wash pressure = pressure generated during purge, older pumps were around 4 bar in order to open the oil rams where fitted.

thanks for that, keep on learning throughout your life, and kilopascals are...............

 

[obleo]

I fitted an older Riello 40 pump I happened to have. It just went straight in with little or no effort, running at a steady nine bar. The RDB pump it replaced was noisy after only 12 months as was the previous pump, that is to say 2 RDB pumps have been replaced due to excessive noise.

 

[Roger Welton]

Also worth knowing is that if (when) the oil rams leak on most boiler it is no problem to just dispense with the em completely, with the possible exception of a non balanced flue low level discharge.

 

[lame plumber]

I fitted an older Riello 40 pump I happened to have. It just went straight in with little or no effort, running at a steady nine bar. The RDB pump it replaced was noisy after only 12 months as was the previous pump, that is to say 2 RDB pumps have been replaced to to excessive noise.

something is causing a problem here then if pumps keep failing, dirt, water tank height issues pulling air through. air ingress. r you oil engineer or diy

 

[Roger Welton]

What was the filter housing like on the old pump, tide mark, dirty?

 

[Best]

Some have done that by changing a fitting over on the pump, I think & fitting the coil with the nut upside down or something, if I remember right.
Not much point in doing that if you can get an RDB pump, - you would have to be an idiot, tbh, but one engineer told me to use the 40 pump as it is £1 cheaper!!!!
Now, putting a Danfoss pump on a Riello burner, that's a wee bit harder!

 

[Best]

something is causing a problem here then if pumps keep failing, dirt, water tank height issues pulling air through. air ingress. r you oil engineer or diy

Riello pumps are poor & it's a lottery how long they last. That said, as you say, a clean oil supply, paper element filter & probably a tigerloop will maybe help them last.

 

[obleo]

Pump filter clear, as was tank filter. Have heard rdb pumps have been causing problems of late, possibly connected to the altered composition of kero.

 

[lame plumber]

Pump filter clear, as was tank filter. Have heard rdb pumps have been causing problems of late, possibly connected to the altered composition of kero.

the kerosene low sulphur issues affect vapourising burners in various amounts but havent heard that it causes pump breakdowns or wed have a lot more work.

 

[Best]

Pump filter clear, as was tank filter. Have heard rdb pumps have been causing problems of late, possibly connected to the altered composition of kero.

All Riello pumps have been causing problems for years & with spells of major troubles. Not fit for purpose using Kero IMO & other pumps, like Danfoss don't have this problem.
If a new burner that used a Danfoss pump was suitable (like a Sterling), it would work out a lot cheaper than changing Riello pumps every 2 or 3 years!

 

[Best]

It does create a lot of breakdowns. If you open a fairly new Riello pump & look at the gears, you will find the drive pin worn where it hits the gear & it is often shiney at one side where it is twisting. The first gear will have a gouge out of it where the drive pin has cut in.

 

[obleo]

I agree with you on the Danfoss pumps. I would never fit a new Riello unless specifically requested. it's the Electro Oil Sterling every time.

 

[Best]

I agree with you on the Danfoss pumps. I would never fit a new Riello unless specifically requested. it's the Electroil Sterling every time.

Yes, it's amazing generally how reliable the Electroil burners are & the Danfoss pumps are often lasting well over 15 years. Danfoss are a lot cheaper also. Only thing that often gives trouble is the Danfoss solenoid.

 

[obleo]

Unfortunately (or should that be 'ironically') reliability ain't good for business.

 

[Best]

Unfortunately (or should that be 'ironically') reliability ain't good for business.

That's so true. And Riello burners are now on loads new boilers.

 

[Roger Welton]

I've though it would be good if danfoss would make a 'riello compatible pump, I'm sure they would sell well given the number of riello burners around nowadays.

 

[obleo]

That would be a definite winner.

 

[Best]

I've though it would be good if danfoss would make a 'riello compatible pump, I'm sure they would sell well given the number of riello burners around nowadays.

Have wondered for years why Danfoss didn't, or couldn't do a substitute for Riello pumps. Don't think there should be a legal problem but maybe they think it is not the way to do things.
There was Pumps that did Riellos that were Chinese but were probably illegal as were boxed as Riellos.

 

[Best]

To think that a lot of people will be replacing a decent standard efficiency boiler that has a reliable burner, to a new condensing boiler, partly to save oil & then find their new Riello burner needs a new oil pump often!
Seems it might be a case of - save a £100 a year on oil & spend it on new pumps!

 

[Roger Welton]

I find it quite noticeable when you replace a old riello pump the difference in weight between the old and new.

 

[Best]

I find it quite noticeable when you replace a old riello pump the difference in weight between the old and new.

Must check that.

Maybe it is the weight of oil in the old pump, - they hold a fair bit.
Or it's a lot of crud! Lol!

 

[SimonG]

Can't remember the last time I installed a new boiler that didn't have a riello burner in it.

 

[Dotty]

Moving to the oily forum

 

[Roger Welton]

I can wall hung grant, also i believe trianco don't use grants (not that I would fit one!) not sure about the new HRM's though.