Sight Glass
For compressive stress with temperatures,Borosilicate circular sight glass work up to max. 280 degrees Celsius Where a greater degree of chemical resistance or higher operating temperatures are required a borosilicate glass should be specified.In a toughened form temperatures up to 315 degrees Celsius are possible whilst annealed glass may be used up to 400 degrees Celsius continuously with a short term maximum of 500 degrees Celsius.Borosilicate is the most commonly used material due to its low cost.It can be easily toughened to effectively increase the mechanical strength of annealed glass by up to five times.It is available in different sizes depending on customer request.
- Toughened borosilicate glass window for direct process viewing
- Precision-ground and sealed for leak-free service
- Withstands process pressure and temperature
- Available in circular window and tubular forms
- Used for level, flow and condition checks without opening the vessel
Overview
Sight Glass is a toughened glass window that lets operators view the level, flow or condition of the fluid inside a vessel or pipeline. It is precision-ground and sealed for leak-free service.
It withstands the pressure and temperature of process duty and is available in circular and tubular forms to suit different fittings.
Specifications
| Material | Toughened borosilicate glass |
|---|---|
| Type | Circular / tubular window |
| Rating | Process pressure & temperature |
| Sizes | Standard fittings |
| Use | Level, flow & condition viewing |
Applications
Industries Served
Commonly specified across:
Frequently Asked Questions
What is a Sight Glass used for?
To view the level, flow or condition of fluid inside a vessel or pipeline without opening it.
Is Sight Glass pressure-rated?
Yes — it is precision-ground and sealed to withstand the pressure and temperature of process service.
What forms does Sight Glass come in?
Circular window and tubular forms to suit standard fittings.
Can you supply Sight Glass to Karachi or Islamabad?
Yes. We are based in Lahore and supply sight glass across Pakistan, including Karachi, Rawalpindi, Islamabad, Multan, Faisalabad and Sialkot. Delivery is by road freight. Give us the size, grade and quantity plus your city and we will come back with carriage and lead time.
Download the Sight Glass Datasheet
Full specifications, applications and industries served — in one PDF for your records or to share with your team.
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