Fox Thermal Instruments FC10 Operating Manual

FC10 Installation Instructions for Insertion
Meters

For use with All Fox Flow Meters

Definition: The FC10 is a flow conditioner installed between two flanges upstream of the flow

meter that corrects irregular flow profiles ensuring flow meter accuracy.

Scope: The FC10 is used with flanges in schedule 40 pipe with insertion style meters.
Purpose: This procedure describes proper installation of the FC10 to ensure flow meter

accuracy.

Directions:

1. Ensure proper installation of the branch outlet for the flow meter. See Fox Document
107590 for more information.

2. Determine the correct distance for dimension “X” for the appropriate schedule 40 pipe in
the table below.

Figure 1.1: FC10 Minimum Straight Run Requirements

FC10 Flow Conditioner

installed between two anges

Irregular Flow
Prole

FLOW

Schedule

40 Pipe

Size

1.5 6 (152) 8 (203)
2 6 (152) 10 (254)

2.5 9 (229) 15 (381)
3 9 (229) 15 (381)
4 9 (229) 20 (508)

“X”

Inch (mm)

5D Min. Up/Downstream

Inch (mm)

Proper
Flow
Prole

Schedule

Branch Outlet

F1

F2 F3 F4

“X”

“X”

40 Pipe

Size

5 10 (254) 25 (635)
6 12 (305) 30 (762)
8 16 (406) 40 (1016)

10 20 (508) 50 (1270)

Inch (mm)

(installed by customer)

5D5D

5D Min. Up/Downstream

Inch (mm)

Fox Thermal Instruments, Inc.
399 Reservation Road, Marina, CA 93933
www.foxthermalinstruments.com
831-384-4300

DOCUMENT NO.: 107679, REV.: B

Page 1 of 2

3. Position the FC10 Flow Conditioner correctly between the flanges.

(customer supplied)

• The FC10 must be installed between flanges and two gaskets for optimum seal.

• Center the flow conditioner between the flanges.

• The FC10 is equipped with an orientation marker. This marker must be aligned in parallel
with the probe of the flow meter.

• The Orientation marker is also etched with “UPSTREAM” to indicate which side, or face,
of the FC10 must be pointed upstream. When installed correctly, the louvers will point
downstream.

Figure 1.2: Orientation of FC10 Flow Conditioner

Orientation marker
must be parallel to

ow meter probe
FC10 Orientation marker
with “UPSTREAM” etching

FLOW

Gaskets

(supplied by customer)

(see table previous page)

4. Tighten bolts on the flanges to complete installation of the FC10.

“X”

F1

Flow meter

F2 F3 F4

Probe

Branch Outlet

Fox Thermal Instruments, Inc.
399 Reservation Road, Marina, CA 93933
www.foxthermalinstruments.com
831-384-4300

DOCUMENT NO.: 107679, REV.: B

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