Flow Indicators are used to observe the flow of liquid, powder or gas through pipelines. In many applications the process media require visual inspection at some point in the piping system, sight flow indicators are used in line. Chemical engineers and engineers in pharmaceutical processing plants use a sight flow indicator and this presentation offers information about materials and options to consider when selecting a visual flow indicator. http://www.ljstar.com/products/products.aspx?pl=5

1. o Setting the Standard
o Seeing the Difference
o Understanding the Options
How to Select the Right Visual Flow
Indicator for Your Usage

2. Visual Flow Indicators
FLOW INDICATOR PRODUCTS - STANDARD
VIEW, FULL VIEW AND VIEW THROUGH
Flow Indicators are used to observe the flow of liquid,
powder or gas through pipelines. In many applications
the process media require visual inspection at some
point in the piping system, sight flow indicators are used
in line.

3. Visual Flow Indicators
• Standard Flow Indicator Units
• Full ANSI Rated
• 150#, 300# & 600#
• Independently Bolted Glass Retainers
• Investment Cast Bodies1
• Flanged or Threaded Connections
• Flow Indicators
• Rotary, flapper & drip tube
1
Available on sizes 4” and smaller

4. Visual Flow Indicators
• Independent Bolting
Cross Bolting
Others
Independent Bolting
L.J. Star

5. Visual Flow Indicators
Flow Indicator
Rotor
Flapper
Plain
Gaseous Flapper
Drip Tube

6. Visual Flow Indicators
Drip
Drip Tube

7. Visual Flow Indicators
Rotor

8. Visual Flow Indicators
Metaglas Advantage
• #1 Fused Glass in World
• FM Approved
• Borosilicate Glass
Standard Flanged
with Metaglas

9. Visual Flow Indicators
Metaglas vs. Dual Window

10. Visual Flow Indicators
• Steam Jackets
• No heat loss across VFI
• Tested in accordance with the
ASME Boiler and Pressure
Vessel Code, Sec. VIII, Div. 1
• Jackets are capable of
maintaining operating
temperatures up to 750°F

11. Visual Flow Indicators
• Teflon Lining
• Lined body
• Provides protection against
harsh chemicals
• Lower cost option vs. high
nickel alloys

12. Visual Flow Indicators
• Flow Indicator Material Options
ANSI flange and NPT type connection visual flow
indicators are available in many different
materials – carbon steel, stainless steel,
hastelloy, monel and those with a Teflon® lining.
They are the best design available, made of
investment cast bodies with independently bolted
retainers to ease any routine maintenance an
increase safety.

13. Visual Flow Indicators
• Material Options
• Body
• 316, 304, CS, Duplex, Hastelloy, Monel, Teflon
Lined
• Gaskets
• Teflon, Gylon, Graphite, Neoprene, EPDM, etc…
• Bolting
• Plated Steel, 18-8, B7-2H, B8-8, B8M-8M, L320
• Glass Shields
• FEP, Mica

14. Visual Flow Indicators
• Ratings
• Full ANSI Ratings
• High Pressure Rating Available
• MetaGlas Upgrade (High Safety Factor)
• Limiting Factors (Weakest Link)
• Gasket, Glass (temperature)
• Metal (pressure)

15. Visual Flow Indicators
• Packaging
• Hydrotest
• Part Marking (Part no., pressure, temp)
• Other Options
• NACE
• Special Paints
• High Temperature (up to ??ºF)
• Socket Weld & BSP Connections

16. Visual Flow Indicators
• Full View Flow Indicator
Units
• Investment Cast
Heads
• Flanged or Threaded
Connections
• Impact Shield
Threaded Full ViewFlanged Full View

17. Visual Flow Indicators
• Full View Flow
Indicator Options
• Teflon Lined
• Extended Lengths
• Graduated Cylinders
• Special Connections
• Drip Tubes
• Armored (Sheathed)
Teflon Lined Full View

18. Visual Flow Indicators
L.J. Star’s History in Visual Flow Indicators
• Part of the original product line
• Entered market to fill a void – short
deliveries
• Developed quality standards
• Now estimated to be #1 for the Flow
Indicator in North America

19. See the Difference…

20. Visual Flow Indicators
For More Information
Visit L.J. Star Incorporated for more
information on the Visual Flow Indicator.
Contact us directly:
Mailing Address:
L.J. Star Incorporated
P.O. Box 1116
Twinsburg, OH 44087
Telephone: (330) 405-3040
FAX: (330) 405-3070