A PTFE Lined Tubular Sight Glass is a transparent tube installed in pipelines or vessels to visually monitor the flow, clarity, and color of fluids, with an internal PTFE (Teflon) lining for chemical resistance.
PTFE Lined Tubular Sight Glass PTFE-lined tubular sight glasses give an unrestricted view of fluid flow in pipelines while offering superior chemical resistance and durability. The PTFE lining offers resistance to corrosion by aggressive chemicals and is thus best used in chemical, pharma and food processing industries. They are light in weight easy to install and require minimal maintenance. They provide secure non-reactive observation in acid alkali and solvent systems. Their resistance to high temperature and pressure improves operating safety and reliability, providing effective process monitoring in challenging conditions.
PTFE-lined tubular sight glass is a state-of-the-art industrial equipment used for visual observation of fluid movement in pipes. It has a transparent glass tube which is wrapped with a protective covering of PTFE (Polytetrafluoroethylene), increasing chemical resistance and avoiding corrosion when dealing with aggressive or toxic chemicals. The PTFE coating makes it particularly ideal for the pharmaceuticals, chemicals and food processing industries. It provides excellent view of the flowing medium with safety and durability at high pressure, temperature, and chemically reactive environments. It ensures reliable performance in severe applications.
| Size | : | ½” to 12” (15 NB to 300 NB) |
| Manufacturing Standard | : | ASME 16.5, Class 150# |
| Body & Lining | : | MS/DI/CS/SS PTFE/ FEP/ PFA/ PVDF |
| Design | : | Fixed Flange End |
| Pressure | : | Metal Body with lining 5~10 kg/cm² Metal Body without lining 28kg/cm² |
Harry PTFE Lining is a leading supplier of PTFE Lined Tubular Sight Glass in Midland, UK, offering high-quality, corrosion-resistant solutions ideal for chemical, pharmaceutical, and industrial applications.
B – 1 | SIGHT GLASS | ||
C – 2 | |||
15 | 50 | ||
25 | 25 | 65 | 89 |
15 | – | – | |
40 | 25 | 75 | 102 |
40 | – | – | |
15 | – | – | |
50 | 25 | 85 | 114 |
40 | – | – | |
15 | – | – | |
80 | 25 | 110 | 140 |
40 | – | – | |
15 | – | – | |
100 | 25 | 130 | 165 |
40 | – | – | |
15 | – | – | |
150 | 25 | 170 | 203 |
40 | – | – | |
15 | – | – | |
200 | 25 | 200 | 279 |
40 | – | – | |
15 | – | – | |
250 | 25 | 250 | 279 |
40 | – | – | |
15 | – | – | |
300 | 25 | 276 | 305 |
40 | – | – | |
PTFE lining provides excellent resistance to corrosive chemicals, ensuring durability even in harsh environments.
PTFE withstands high temperatures, making it suitable for processes involving heat-intensive operations.
PTFE lining minimizes risks of leaks or contamination, ensuring safe operation in critical systems.
The smooth, non-stick surface of PTFE minimizes residue buildup, reducing cleaning and maintenance efforts.
A PTFE Lined Tubular Sight Glass is a transparent tube installed in pipelines or vessels to visually monitor the flow, clarity, and color of fluids, with an internal PTFE (Teflon) lining for chemical resistance.
PTFE lining provides excellent resistance against aggressive chemicals, corrosive media, and high temperatures, making it ideal for harsh industrial environments.
They are widely used in chemical processing, pharmaceuticals, food and beverage, and petrochemical industries where corrosion protection and clean operation are critical.
Sizes typically range from ½” to 12″ (DN15 to DN300), but custom dimensions can be manufactured depending on the application.
Regular inspection for cracks, cloudiness, or wear is recommended. Clean with mild, non-abrasive agents, and avoid thermal shock to prolong the life of both the glass and PTFE lining.
We are the leading Manufacturer and Supplier of PTFE Lined Pipe, Fittings, Flanges, Spool and Valves in Midland, Uk.
