Glass Applications
- Sight Windows
- Flow Indicators
- Observation Equipment
Maxos® 8488 Molded replacement glass has outstanding Quality and Clarity characteristics
It has a standard thickness of 3/4″ and is made of borosilicate
Also referred to as Annular Edge glass when Corning Glass manufactured it.
| Style | Maxos PN | Corning PN | Diameter | Thickness | PSIG | Temp. |
|---|---|---|---|---|---|---|
540-1 540-2 540-3 540-4 540-5 | 754000L 755000L 756000L 756750L 758375L | 695620 695610 692540 694790 694800 | 4” 5” 6” 6-3/4” 8-3/8” | 3/4" | 150 100 60 45 30 | 400°F |
541-1 541-2 541-3 541-4 541-5 | 754000H 755000H 756000H 756750H 758375H | 754000H 755000H 756000H 756750H 758375H | 4” 5” 6” 6-3/4” 8-3/8” | 3/4" | 450 300 180 135 90 | 500°F |
Style 540 – Annealed Borosilicate
For lower pressure applications
Style 541 – Tempered Borosilicate
For higher pressure applications
Application Notes
- Steam Service: Requires Mica protection
- Vacuum Service: Acceptable with properly designed equipment and sealing
- Compatibility: Before ordering, verify that the glass is compatible with the design, media(s), cleaning solutions, and the environment of the application and future applications. The John C. Ernst Co. does not make compatibility recommendations. Compatibility determinations, corrosion or otherwise, are the responsibility of the user.
Some medias reduce the useful life of gauge glass by chemical action, such as Hydrofluoric Acid (HF), hot concentrated Phosphoric Acid (H3PO4), Sodium Hydroxide (NaOH) and Potassium Hydroxide (KOH) above 125°F, steam or superheated water above 250°F. Alkaline solutions attach glass very slowly at room temperatures, but as temperature is increased over 100°F, the corrosion rate rises rapidly. Steam can etch or glass thus weaken the glass.
WARNING: This product can expose you to certain chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov
Model Number Matrix
