Tecfluid 60M1 Series Manuale Utente Scaricare il pdf (Pagina 3)

Working Principle

The flowmeter consists of a float inside a conical tube.

The rising flow pushes the float to an equilibrium point.

The area obtained between the float and the orifice is

proportional to the flow rate.

This type of measuring principle is known as variable

area.

The equilibrium point depends on :

− The float weight : Pf

− The fluid thrust : E

− The free flow area : Al

The area proportional to the flow rate will be:

Al = Ac - Af

where:

Ac = Flow measuring tube area

Af = Float area

Each position of the float corresponds to a flow rate

indicated on the scale printed on measuring tube.

Reading

line (see

page

n. Part Materials

1 Body EN 1.4404

2 M. Tube clamp EN 1.4404

3 O-ring NBR

4 End gasket NBR

5 Top spring EN 1.4401

6 Float

EN 1.4404 /

Glass / Ceramic /

Hostalen

7 Measuring Tube Borosilicate Glass

8 Bottom spring EN 1.4401

Transparent

protection

Metacryilate

10 Screw Nylon ®

1 2 3 4 5 6 7 8

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Tecfluid 60M1 Series Manuale Utente Pagina 3