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atroni [7]
3 years ago
11

Of the three types of oxygen​ flowmeters, which one can only be used​ upright?

Chemistry
1 answer:
lorasvet [3.4K]3 years ago
7 0
Given the choices;
a) Bourdon gauge flowmeter
b) Hudson gauge flow meter
c) Constant flow selector 
d) pressure compensated flowmeter.
The one that can only be used upright is the pressure-compensated flowmeter. Compensated flowmeters work with a variable orifice and fixed pressure. They read back pressure, and take into account resistance changes down stream from the needle valve. If pressure exceeds 50psig downstream, flow ceases.
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