Description
PTFE Lined Tubular Sight Glass Manufacturer & Exporter in India
FlowBiz PTFE Lined Tubular Sight Glasses (also known as Full-View Sight Flow Indicators) are engineered specifically for 360-degree inline visual inspection of aggressive, highly corrosive acids, alkalis, and ultra-pure chemical process media. Combining heavy-walled borosilicate glass tubing with an internal virgin PTFE sleeve and steel outer protective casing, these sight glasses provide continuous monitoring of fluid flow, clarity, color, and bubble formation without exposing structural metal components to chemical attack.
Unique Mechanical Engineering & Corrosion Protection
- 360-Degree Full-Vision Inspection: Heavy-walled cylindrical borosilicate glass 3.3 tube provides unobstructed, multi-angle visibility of process media across horizontal and vertical pipeline layouts.
- Seamless Virgin PTFE Lining: Internal fluid-contact surfaces are completely isolated by virgin PTFE/PFA lining flared smoothly over the end flanges, eliminating dead legs, chemical degradation, and fluid contamination.
- Heavy-Duty Protective Steel Cage: Surrounded by a high-strength carbon steel or stainless steel outer tie-rod guard cage that absorbs mechanical piping strain, line vibration, and external impacts to safeguard the internal glass cylinder.
- Leak-Tight Flange Sealing: High-resilience PTFE envelope gaskets and spring-loaded flange connections maintain continuous sealing pressure under extreme thermal cycling and pressure fluctuations.
Technical Specifications & Engineering Standards
Specification Parameter | Standard Options & Range |
Nominal Sizes | 1/2" (DN15) to 8" (DN200) |
Pressure Class / Rating | ASME Class 150 / PN10 / PN16 |
Body / Outer Cage Material | Carbon Steel (WCB/A105), Stainless Steel (SS304/SS316) |
Fluid Contact Liner | Virgin PTFE / PFA Lined Flared Ends |
Glass Cylinder Type | Heavy-Walled Borosilicate Glass 3.3 (Annealed & Tempered) |
End Connections | Fixed Flange Ends (ASME B16.5 / DIN / EN 1092-1) |
Temperature & Pressure Limits | Temperature up to 200°C; Hydrostatically tested to 1.5x working pressure |
Target Process Applications
FlowBiz PTFE Lined Tubular Sight Glasses are extensively deployed in chlor-alkali manufacturing, sulfuric and hydrochloric acid transfer lines, active pharmaceutical ingredient (API) reactor outlets, specialty chemical processing, and corrosive effluent monitoring systems.
Contact FlowBiz Exports for glass pressure rating charts, dimensional CAD drawings, or an instant commercial quotation for your chemical process line.