About PTFE Lined Double Window Flow Indicator
Features:
- Easy Maintenance
- Available in all most all M.O.C.
- Manufactured to the Highest Standard
- Durable Construction
- Tempered Borosilicate glass standard
- Large View Area
- P.T.F.E. [Teflon] FEP / PFA Lined Sight Glass
- Fully Jacketed Double Window Type Sight Glass
- Sizes Range from 15MM To 600MM
- Pressure Rating PN 10
- Design & Testing As Per Mfg. Standard
- End Connections as per ANSI B 16.5
- Tailor Made Sight Glass
A transparent section in a pipe or tank wall for giving visual indication of level or flow of liquids. "FLOWTECH Manufactures Industrial Sight Flow Indicator (Sight Glasses) in Two Types.
- Full View Type.
- Double Window Type.
Full View Type:
- Sight Glass (Sight Flow indicators) is used for monitoring flow in pipelines for a wide range of applications. Sight Glass suitable for various rugged industrial applications. These Sight Flow Indicators are bi-directional type and easy to install in any orientation. Sight Glass (Sight Flow Indicators) provides a quick, reliable and economical way to verify the flow of liquids through industrial process pipe lines. Sight Glass available with different length of glass from 4 (100mm) to 8 (200mm) long.
Double Window Type:
- Double Window Type Sight Glass (Sight Flow Indicator) in Cast Construction & Fabricated design to meet an industrial requirement of various applications to inspect the process fluid. In Double Window Sight Glass (Sight Flow Indicator) Contains Two Toughened Glasses Mounted opposite to each other. Double Window Type Sight Glass (Sight Flow Indicator) available with various thickness and diameter of glass to suit various applications respects to fluid pressure and temperature. Double Window Type Sight Glass (Sight Flow Indicator) is very easy to replace glass without dismantling the whole Sight Glass assembly from process line.
Performance:
- Connections : Flanged, Screwed or Socket Weld or Butt Weld End.
Versatile Corrosion-Resistant DesignConstructed from high-grade materials such as carbon steel and stainless steel (SS304/SS316), the flow indicator is internally coated with virgin PTFE lining for enhanced protection against aggressive chemicals. This makes it ideal for chemical, pharmaceutical, and related sectors, ensuring durability and extended service life under demanding conditions.
Reliable Flow ObservationEquipped with double toughened borosilicate glass windows, this indicator allows accurate visualization of liquid movement. The choice of indicator-plain, rotating wheel, or flapper-supports different process needs, allowing operators to select the best fit for their application. Visual feedback aids in efficient process control and maintenance planning.
FAQ's of PTFE Lined Double Window Flow Indicator:
Q: How does the PTFE Lined Double Window Flow Indicator function in a pipeline system?
A: The flow indicator provides a visual means for operators to observe the passage of process liquids through pipelines. Double glass windows enable safe and clear inspection, while the integrated plain, wheel, or flapper indicators respond dynamically to the flow, confirming movement and aiding process monitoring.
Q: What are the key benefits of choosing a double window design for flow indication?
A: A double window design enhances visibility, safety, and allows for inspection from both sides. This improves operator confidence in observing flow conditions, reduces the risk of glass failure, and supports maintenance without process interruption.
Q: When should I use a PTFE lined flow indicator over other materials?
A: PTFE lined flow indicators are recommended when handling corrosive, toxic, or highly reactive process fluids. The virgin PTFE lining protects the metal body from chemical attack, extending the lifespan and ensuring product integrity in harsh industrial environments.
Q: Where can this flow indicator be installed in my plant?
A: It can be mounted horizontally or vertically as required by your pipeline layout. The flexible installation options and flanged ends compatible with ANSI and custom standards make it suitable for various industrial setups in chemical, pharmaceutical, and allied facilities.
Q: What is the process for maintaining or replacing glass windows and gaskets?
A: Maintenance involves periodic inspection for glass integrity and seal tightness. Replacement can be conducted by shutting down the section, unbolting the flanges, and swapping out toughened borosilicate glass and gaskets, which can be PTFE, EPDM, or Gylon depending on your process needs.
Q: Is the flow indicator suitable for high temperature and pressure applications?
A: Yes, it is engineered for temperatures up to 180C, subject to lining and gasket choice, and can support pressures up to 10 Kg/cm2. Proper selection of lining and gasket materials ensures safe operation under elevated conditions.