Science experiment few ideas???

[Riley]

Hi chaps

I have a customer who is a scientist and requires a mock jig made up to incorporate an unvented cylinder. I really need a little help to source some suitable appliances and fittings. Any help would be massively appreciated:

1. The incoming flow is not good so we will probably be looking at an accumulator or booster pump to increase the flow. Can anyone recommend a cheap (ish) accumulator/booster pump to take flow up to 18-20 lpm from 12. Pressure is pretty good at 2.5bar.

2. As part of his experiment he will need to control the flow rate to various lpm amounts. can anyone suggest a fitting to enable easy but accurate flow control?

3. Finally, a G3 type question. How close can hot outlet change from copper to Speedfit as the hot water will need to go through something like a 50m coil before reaches an outlet. Don’t ask me what they are trying to achieve but this is the spec they’ve given me.

Thanks guys

Matt

 

[townfanjon]

Blimey ..
i did my G3 last week and don’t remember reading anything about the copper to speedfit on no 3 , I will have a read in a bit and let you know.
Only thing that sprung to mind , but I have no idea what hes trying to do is Legionella ???

 

[galaxy_plumbing]

have you checked Stuart Turner?
Stuart Turner

 

[ShaunCorbs]

dynamic 2.5 bar?

 

[chris watkins]

Hi chaps

I have a customer who is a scientist and requires a mock jig made up to incorporate an unvented cylinder. I really need a little help to source some suitable appliances and fittings. Any help would be massively appreciated:

1. The incoming flow is not good so we will probably be looking at an accumulator or booster pump to increase the flow. Can anyone recommend a cheap (ish) accumulator/booster pump to take flow up to 18-20 lpm from 12. Pressure is pretty good at 2.5bar.
Mains pressure boosting

2. As part of his experiment he will need to control the flow rate to various lpm amounts. can anyone suggest a fitting to enable easy but accurate flow control?
Water Flow Regulators
3. Finally, a G3 type question. How close can hot outlet change from copper to Speedfit as the hot water will need to go through something like a 50m coil before reaches an outlet. Don’t ask me what they are trying to achieve but this is the spec they’ve given me.
No Regulations I am aware of plastic can be directly connected if you must.
Thanks guys

Matt

Check out the links above &
Talk to the man at Great Water he is a good guy Matt.
More details would be required to determine the best options, like is it going to say connected or removed after ?

 

[Riley]

It’s a temporary set up prior to them marketing their product to potential buyers

 

[Riley]

Massive thanks to you all, first time I’ve ever had to concoct something so variable in terms of usage within a day.

 

[ShaunCorbs]

What's the product there testing ?

 

[Riley]

It’s to do with a cleaning product and hot water and specific flows and pressures are key

 

[Welder]

Firstly, with a not too good flow rate, and requiring it in bursts, prob the best (cheapest) thing to do is install a large tank with a single ended pump at the outlet whose operation is limited by a float switch so it doesn't run dry. The size of the tank will be determined by the flow rate required & time plus a percentage.

On the pump outlet fit a flow limiter. You could do that simply by creating a T off the pump with the T going back into the tank (opp end to take off). Put two valves on two away legs to control. As its a dedicated system and pumped you should get pretty reasonable flow consistency by just testing rate into a bucket!

I've never heard of a G3 requirement re speedfit! The only thing, in my view you'll need to worry about is the severe restriction to flow speedfit introduces with those horrible inserts. Personally I'd use Polyplumb with the st/st ones.

 

[chris watkins]

Tank & cheap booster pump for me too with maybe an adjustable PRV on the outlet of the pump or an easy set flow setting regulator.
Balancing valve with flow meter

 

[ShaunCorbs]

It’s to do with a cleaning product and hot water and specific flows and pressures are key

You have to be careful then if there adding it to the water it could become a cat 4/5 risk so that makes your mind up break tank and pump needed

 

[Riley]

They are running the water at varying temperatures / flow rates / pressures through their cleaning product. To the best of my knowledge there is no point where the product and the water will mix