need help with parts connecting pump and jamil chiller

[Kbar]

Yes, looks like it. I have a CFC and am amazed that I can run almost full flow out of the pump and get a wort outlet temperature equal to that of the water inlet. I choose to slow the wort flow down so I can oxygenate and not foam over the conical from too high a flow. I am pleased with the system. My brew day is <2-2.5 hours for extract only two batches in.

Would like to perform this test as well. Could be donw with just water - no need to brew. Would be an interative process, as the flow rate would have to be varied for the CFC to find out at what point we begin to get wort temps that do not favor pitching.

[TimmyR]

Gotcha. Thnx Kbar. I was curiouse exactly where your ball valve was attached if not directly to the pump. I'm looking at a totally portable set-up, and wondered how you avoided the repeated stress on the March pump from opening/closing the ball valve.

I'll check out the article...right now I am set up to run an immersion chiller, Jamil-Style with the recirculating wort.

[BeerPal]

The polysulfone March pump head is plenty strong enough to handle having a ball valve attached to it and will not fail. In fact you need to have two ball valves attached, the second will be a bleed valve to eliminate the inevitable air bubbles that otherwise will severely impede pump flow:

[straight cash homey]

Yes, looks like it. I have a CFC and am amazed that I can run almost full flow out of the pump and get a wort outlet temperature equal to that of the water inlet. I choose to slow the wort flow down so I can oxygenate and not foam over the conical from too high a flow. I am pleased with the system. My brew day is <2-2.5 hours for extract only two batches in.

Would like to perform this test as well. Could be donw with just water - no need to brew. Would be an interative process, as the flow rate would have to be varied for the CFC to find out at what point we begin to get wort temps that do not favor pitching.

I dont doubt that the wort coming out is close to the same temp as the cooling water, i just dont understand how the full volume can be passed through the chiller in 3 mins.

[BeerPal]

I dont doubt that the wort coming out is close to the same temp as the cooling water, i just dont understand how the full volume can be passed through the chiller in 3 mins.

Maybe he's not doing full-boil batches?

[Kbar]

I dont doubt that the wort coming out is close to the same temp as the cooling water, i just dont understand how the full volume can be passed through the chiller in 3 mins.

Maybe he's not doing full-boil batches?

The pump chart shows these 809 pumps are capable of 3 Gpm at 2ft of head (0.87 Psi). I flood the inlet of the pump with about 1 foot of head (0.43 psi) due to gravitational advantage (boil pot above the pump). I then move only 2 feet up to the conical. Taking line losses into account, I should be somewhere around 2-2.5 Gpm.

At 2.5 Gpm (2.25ft or 0.975 Psi), I can move 5 Gallons of wort in 2 minutes at full flow, non metered outlet (ball valve full open). I should test this with the old trusty stop watch and 5 gallon bucket.....(V/T)

[img][IMG]http://www.picamatic.com/show/2009/07/19/08/43/4493641_bigthumb.JPG[/img][/img]