Looking for a flowmeter

[cougarfan]

I am looking for a flowmeter for various liquids which will handle solvents and acids , 1' and 2" dia - with intriscially safe display or explosionproof showing both rate and total and be low cost - under $1500 -

 

[PUMPDESIGNER]

Is that 1 inch and 2 inch pipe?
What kind of pipe and what are the pipe dimensions, class, schedule, or whatever.
What is the total range of velocities that must be measured accurately?
How accurate at what ranges?
Exactly what kinds of fluids? Will 316 stainless suffice?
Any solids in the fluid?
Give us everything you can think of.

PUMPDESIGNER

 

[cougarfan]

Ok - here are your answers -
Is that 1 inch or 2 inch pipe? - yes
What kind of pipe Stainless steel - sch 40

Flow rates will be max about 30 -40 gpm

Accuracy - 1 % or so

Solvents ( acetone, toluene), acetic acid, sulfuric acid - any of these at 100 % concentration

No solids

 

[PUMPDESIGNER]

100 % blows me out of the water.
All I know of are 316 Stainless penetration types for under 1,500.00 with that kind of accuracy.

My next move would be non-penetrating types, time of transit, doppler, etc., but none under 1,500.00 I know of, and certainly not with explosion proof.


PUMPDESIGNER

 

[quark]

With such low flowrates, a 1" meter would be quite sufficient if you go for magnetic flow meters. The turndown ratios are as high as 40 and as low as 25. 1% is the general accuracy with them.

Fischer Rosemount has mags, with detachable indicator and this can be placed anywhere within 15 meters. I don't know the cost at your geography, but that is quite a good budget here in India. Moreover these meters come with exotic inner linings to deal with any bloody acid and alkali.

Regards,

 

[meterman62]

You might look at a stainless steel inline turbine meter with direct mounted ex-proof ratemeter/totalizer. They can be either battery or externally powered. The price point may be tight, but the ease of a battery powered configuration would save on installation. Let me know if you need more details.