Instrumentation: Gauge Glass / Level Gauge: Industrial
Manufacturers: Gauge Glass with Tubular Glass: past and present
- American Wheatley
- Apollo: Conbraco
- Archon
- Ernst: Clark Reliance
- Johnson (UK)
- Kenco
- Lunkenheimer
- Olio (India)
- Redline
- United Brass Works
- Wise
Optional: Guard Rod.
Instrumentation: Tubular Borosilicate Glass Tubes (internal link)
Valve: Gauge Cock (internal link)
Manufacturers: Armored / Reflex / Flat Glass / Weld Pad / Magnetic Systems: past and present
- ABB
- American Wheatley
- Ametek
- AMS (international)
- Apollo: Conbraco
- Archon
- Autocontrol (international)
- Ayvaz
- Babcok & Wilcox: Aquarian
- Babbitt
- Barksdale
- Beaumont
- Bliss Anand (international)
- Clark Reliance
- Davis Controls (Canada)
- Delta Mobrey
- Emco (international)
- Ernst: Clark Reliance
- Forbes Marshall
- Gems
- Jogler
- K-Dyne
- Kenco
- Klinger
- Kobold
- Jerguson: Clark Reliance
- LJ Star
- Mac Weld
- MLG (international)
- Olio (India)
- Penberthy (Emerson)
- Questtec
- SOR
- Taylor Valve / Mallard
- United Brass Works
- Vega
- Wika
- Wise
- Yarway (Emerson)
- Oil-Rite
Other: MACBETH Gauge Glass
Alternate: Versilon: Saint Gobain
Note: Alternate method is using a Level Transmitter.
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