Sight Glass Solutions

We are a manufacturer of sight glass, providing high-quality sight glass solutions to customers worldwide across a wide range of industries.

Aohong

Solutions

Aohong is a manufacturer and exporter of glass for sight glasses. We are committed to providing high-quality sight glass solutions tailored to the needs of our global customers. Whether for industrial equipment, pressure vessels, or piping systems, our sight glasses deliver reliable visibility and durability.

At Aohong, our engineering team focuses on one thing: making the right glass for your sight glass needs. Over the years, we have mastered the balance between strength, clarity, and resistance to harsh conditions. Whether you need soda-lime, borosilicate, or quartz glass, our solutions are tested to perform reliably in the field.

Frank

Our Chief Engineer

Level Gauge Glasses

Monitors liquid levels in boilers and tanks. Withstands high pressure and thermal shock.

"We have used Aohong’s level gauge glass for our steam boilers for two years. It handles high temperature and pressure perfectly without any cracks or fogging."

John Allison

Tubular Sight Glasses

For flow observation in piping. Smooth bore ensures accurate level reading and easy install.

“Aohong’s tubular sight glass offers great chemical resistance in our corrosive environment. The surface finish is smooth, and we appreciate the consistent outer diameter.”

Edward B. Suarez

Round Sight Glasses

Ideal for direct viewing of fluid flow, color, and clarity in pipelines or process equipment, available in various diameters and pressure ratings.

“The round sight glass arrived well packed and exactly matched our drawing dimensions. Installation was easy, and the optical clarity is excellent for monitoring chemical reactions.”

Alicia Potter

Accessories

Includes gaskets, washers, covers, and mounting components designed to ensure a secure, leak‑free fit for all types of sight glass installations.

“The gaskets and washers from Aohong fit our sight glass perfectly. No leaks after three months of continuous operation – highly recommended.”

Kevin Clark

Sight Glass Solutions

Aohong