how to select the proper sight flow indicator

o Setting the Standardo Seeing the Differenceo Understanding the Options

How to Select the Right Visual Flow Indicator for Your Usage

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.

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• 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


• Independent Bolting

Cross BoltingOthers

Independent BoltingL.J. Star


Flow Indicator

Rotor

FlapperPlain

Gaseous Flapper

Drip Tube


Drip

Drip Tube


Rotor


Metaglas Advantage• #1 Fused Glass in World• FM Approved• Borosilicate Glass

Standard Flanged with Metaglas


Metaglas vs. Dual Window


• 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


• Teflon Lining• Lined body• Provides protection against

harsh chemicals• Lower cost option vs. high

nickel alloys


• Flow Indicator Material OptionsANSI 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.


• 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


• Ratings• Full ANSI Ratings• High Pressure Rating Available• MetaGlas Upgrade (High Safety Factor)• Limiting Factors (Weakest Link)

• Gasket, Glass (temperature)• Metal (pressure)


• Packaging• Hydrotest• Part Marking (Part no., pressure, temp)

• Other Options• NACE• Special Paints• High Temperature (up to ??ºF)• Socket Weld & BSP Connections


• Full View Flow Indicator Units• Investment Cast

Heads• Flanged or Threaded

Connections• Impact Shield

Threaded Full ViewFlanged Full View


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

Teflon Lined Full View


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

See the Difference…


For More Information

Visit L.J. Star Incorporated for more information on the Visual Flow Indicator.

Contact us directly:Mailing Address:L.J. Star IncorporatedP.O. Box 1116Twinsburg, OH 44087

Telephone: (330) 405-3040FAX: (330) 405-3070


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