PTFE-lined window sight glasses are industrial parts specifically made for safe and clear visual observation in corrosive or high-temperature process environments. With a lining of PTFE, these sight glasses provide superior chemical resistance, long-term durability and stable performance at elevated temperatures. They are best suited for the handling of aggressive chemicals, acids and alkalis. Grayson PTFE Lined Pipe offers sight glasses that avoid contamination, minimize maintenance expenses and provide safe operation in chemical processing, pharmaceuticals and food processing industries. Their transparency and corrosion resistance facilitate process control with reliable and effective solutions for harsh environments.
A Lined Window Sight Glass is an industrial sight glass applied to monitor the flow and status of liquids or gases in pipes. It consists of a clear window, preferably glass or its equivalent, installed in a casing that is corrosion-resistant with a protective lining. The lining, usually made up of materials such as PTFE (Teflon), protects against abrasive chemicals and severe temperatures. Such sight glasses are regularly fitted to pipelines so that operators can observe processes in industries like chemicals, pharmaceutical and food processing, maintaining safety, efficient operation and quality control during the process.
Size : 25 NB to 300 NB
Outer body : ASTM A 395 Gr 60-40-18
Flange Connection : ANSI B 16.5
Face to Face : ANSI B 16.10
Spark Test : 15 KVA
Hydro Test : at 29.8 kg/cm2
FEP- Max Temp : 180° C
PP Max Temp : 100° C
PFA Max Temp : 200° C
Grayson PTFE Lined Pipe is a leading supplier of PTFE Lined Window Sight Glass in Midland, UK, offering high-quality, corrosion-resistant solutions ideal for chemical, pharmaceutical, and industrial applications.
B – 1 | NB – 2 | 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 ensures high resistance to a wide range of corrosive chemicals, making it suitable for aggressive environments.
The non-stick properties of PTFE prevent material build-up, ensuring clear visibility and reducing maintenance needs.
PTFE can withstand extreme temperatures, maintaining its performance in both high and low thermal conditions.
PTFE-lined components resist wear and degradation, providing a long-lasting solution in industrial processes.
PTFE-lined sight glasses may be prone to damage from mechanical stress, high temperatures, or aggressive solvents over time.
PTFE lined sight glasses are used in chemical processing, pharmaceuticals, food and beverage, petrochemical, and industries handling corrosive or reactive fluids.
Industries using PTFE-lined sight glasses include chemical processing, pharmaceuticals, food and beverage, petrochemicals, and water treatment for corrosive applications.
PTFE-lined sight glasses handle pressure changes via robust construction, reinforced linings, and adherence to pressure ratings for safe and reliable operation.
PTFE lining offers chemical resistance, durability, high-temperature tolerance, non-stick properties, and protection against corrosion for extended sight glass lifespan.
We are the leading Manufacturer and Supplier of Grayson PTFE Lined Pipe, Fittings, Flanges, Spool and Valves in Midland, UK.
