
Product
Custom-Shaped Sight Glass
Custom-shaped sight glass is manufactured to your drawing or sample for non-standard viewing windows in tanks, vessels, pipelines, instruments, and industrial equipment.
Technical Specifications
| Product Type | Custom Sight Glass / Viewing Window |
|---|---|
| Materials | Borosilicate, Aluminosilicate, Quartz or Soda-Lime Glass |
| Shapes | Oval, Rectangular, Polygonal, Curved or Custom-Designed |
| Standards | According to Customer Drawings, Samples or Applicable Standards |
- Standard and custom specifications are available.
- Drawing and sample-based customization is supported.
Circular Sight Glass
Product Description
Custom-shaped sight glass is designed for equipment where standard round or rectangular glass cannot provide the required fit. It can be manufactured according to customer drawings, CAD files, physical samples or detailed dimensions.
Available designs include oval, polygonal, curved and other irregular profiles, as well as glass with mounting holes, central openings, slots, notches, grooves, steps and special edge finishes. Material, thickness and processing method can be selected according to the operating temperature, pressure, thermal shock and chemical compatibility of the application.
We can provide borosilicate glass for general industrial and thermal applications, aluminosilicate glass for more demanding operating conditions, quartz glass for high-temperature or optical applications, and soda-lime glass for economical low-to-moderate-duty use.
Matching graphite, PTFE, rubber and other sealing gaskets can also be supplied to simplify installation and replacement. Custom glass processing according to drawings and samples is a common capability among specialist industrial glass fabricators.

Customization Requirements
To manufacture a custom-shaped sight glass accurately, please provide the following information:
Dimensioned drawing, CAD file or physical sample
Glass material
Overall length, width and thickness
Shape and corner-radius requirements
Hole diameter, quantity and position
Details of slots, grooves, notches or stepped profiles
Edge finish, such as ground, polished, bevelled or chamfered
Operating temperature and pressure
Process medium and chemical compatibility requirements
Required quantity
Gasket, mica shield or accessory requirements
Drawings can be submitted in PDF, DWG, DXF or STEP format. If no drawing is available, clear photographs and a physical sample may be provided for evaluation.
CUSTOM MANUFACTURING
Need a Custom Size or Specification?
Send your drawing, sample, dimensions, material requirements, operating temperature, pressure and process medium. We will review the application and confirm the suitable product specification before production.
Standard products and OEM/ODM solutions available.
QUICK INQUIRY
What to Send Us
To receive an accurate recommendation and quotation, include as much of the following information as possible.
- Product name or drawing/sample
- Required dimensions and quantity
- Material or applicable standard
- Operating temperature and pressure
- Process medium and installation details
Inquire About: Custom-Shaped Sight Glass
Fill in your contact details and requirements. Our team will respond within 24 hours.