dwyer flowmeter

[matt]

After months of dealing with my lousy regulator, I finally bought one of these. The difference is really something; MUCH finer and more stable control over CO2 flow, and thus reactor ph. I always had a feeling the "bubbes/min" thing was useless, because there's no such thing as a standard bubble size. The flowmeter reads in cc/min; my reactor is taking 2-3 cc/min. Not much, but because my bubble counter produces much smaller bubbles than most, it's more than a bubble/sec. Other reactors may be using more CO2 with lower bubble counts, and you'd bever know without a meter like this. I highly recommend it for anyone with a calcium reactor, its the RMA151SSV from dwyer instruments; about $40. Also, if you can use a cheaper regulator because you don't need the "precision" needle valve; just a steady output of 15-30lbs/in2.

[Henry]

Yeah, same question as above. Also anyone know of a local place to buy a decent regulator.

[matt]

You buy the flow meter from dwyer; they have a website but i can't remember the exact url. Henry, as far as a regulator goes, try a beverage supply place; anything that will fit on a CO2 bottle, and lower the pressure to 15-30lbs pressure. You need 2 guages, one for tank pressure and one for working pressure. Welding supply houses might have them too, but make sure they'll fit CO2 bottles. I think the fitting may be different for flammable gases. (Not sure)

The beauty of this flow meter is that you don't need to buy a fancy aquarium regulator with a needle valve; the flow meter replaces the needle valve and works way better.

[matt]

Yeah, they have lots. RMA151SSV is the part number (10-50 CC/min)

[::pete::]

Matt
Digging up an old one, but cant find the 10-50 cc/min or the RMA151SSV!! Everything there is marked "new" ... help please :huh

[MikeyBoy]

Matt...........We found them............They are still exactly $40.00

For anyone who wants them and so when someone searches someday:
Dwyer Instruments
102 Hwy 212
Michagan City Indiana, 46361-0373
Sales Number 219-879-8000