HVF-SST (G1/4 - G3/8 - G1/2)Visual flow indicators

AISI 316 stainless steel bosses

Technopolymer ends

Catalogue
Description
d
H
L
B
h1
s
Q max*
l/min
P max #
Bar
Q**
l/min
H2O
Q**
l/min
0÷40 cSt
Q**
l/min
41÷150 cSt
111302
HVF.66-SST-1/4
G 1/4
66
44
27
22
20
10
25
0.6
2.5
3.5
111312
HVF.92-SST-3/8
G 3/8
92
60
40
36
28
20
15
1.2
3
4
111322
HVF.92-SST-1/2
G 1/2
92
60
40
36
28
40
15
1.2
3
4
* Maximum flow rate# Maximum pressure** Minimum flow rate to start the rotor for fluids of different viscosity## Pressure drop due to the indicator presence

Ends

Polypropylene based (PP) technopolymer, black colour, matte finish.

Axis and rotor propeller

Polypropylene based (PP) technopolymer, red colour.

Tubular window

Borosilicate glass, high-resistance, also suitable for use with glycol-based solutions.

Maximum visibility of the flow from all angles.

Tie rods

AISI 316L stainless steel.

Screws and nuts

Zinc-plated steel.

Standard executions

Cylindrical gas threading according to UNI ISO 228/1 or conical gas NPT - ANSI-ASME B1-20.

  • HVF.: brass bosses and NBR synthetic rubber gasket.
  • HVF-SST: AISI 316 stainless steel bosses and packing ring in VITON®**.

Maximum continuous working temperature

100° C.

Features and applications

The indicator can be mounted in any position.

In case of mounting on rigid tubes, it is recommended to place the indicator perfectly aligned with the tubes.

The indicator operates with two-way liquid flows.

For rotating the propeller it is required a minimum fluid flow rate (Q**) depending on the type of fluid and its viscosity (shown in cSt, see table)

Special executions on request

  • Bosses with NPT conical threads.
  • Axis and rotor propeller in blue colour.

* Registered trademark by Corning Inc.

** Registered trademark by DuPont Dow Elastomers.

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Visual flow indicators with flow-meter sensor Technopolymer ends