Flow balancing manifold on a budget

[Shreadhead]

What do you guys use for a manifold when doing flow balance. I saw a few online, they were crazy expensive. Is it possible to use a digital gauge, and a tee with 2 refrigeration hoses with ball valves? Just flip flop the ball valves to get your reading?

[jayguy]

i use an old manifold with 3 hoses. on the suction gage side, i have a low range digital gage from Dwyer and on the discharge side i have a high range digital gage from Dwyer. this allows me to have as accurate a reading as i want...maybe not as accurate as a true flow gage, but good enough for the girls i date.

[71CHOPS]

I bought a digital gauge and aluminum manifold online. Still have to put it together...I think I'm about $300 in.

[ishaitz]

Can you please share sources you bought it from?

[71CHOPS]

https://hvac-talk.com/vbb/threads/22...-water-balance

[71CHOPS]

Most important thing when selecting a gauge is the range. The larger the range, the less accurate it will be.

If you need high accuracy, do what Jay suggested, and use 2 gauges...one with a low pressure range, and one for a higher pressure range.

[ishaitz]

Most important thing when selecting a gauge is the range. The larger the range, the less accurate it will be.

If you need high accuracy, do what Jay suggested, and use 2 gauges...one with a low pressure range, and one for a higher pressure range.

I am trying to do the same for TA (balancing) valve with the needle connection (blue and red on photo).

So far no luck finding it, do you know where?

[71CHOPS]

Look at the link I posted to the other thread about the same topic.

[ishaitz]

Look at the link I posted to the other thread about the same topic.

First, thank you.

I am sorry but can not find the answer for the needles themselves.
Where do you find those?
The gauge is not a problem to find.

[71CHOPS]

Oh....

Here's the smaller bell and gosset type.

https://www.supplyhouse.com/Bell-Gos...Probe-Set-of-2

[71CHOPS]

Here's the part number for the larger armstrong type probes.....check that though, it may be the entire kit, not just the needle probes.

https://www.winstelcontrols.com/item.../ARM570147-010

[ehsx]

Budget: Use tee, nipples, ball valves, plastic tubing, and a selection of 2-3 pressure gauges. My cost $0, industrial customer donations.

Orange research dp gauge or Dwyer dp commercial options.

Pete's plugs & needle probes.

[ishaitz]

Thank you guys

[Shreadhead]

Thank you guys

Agreed, thank you!