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PTFE Lined Sight Flow Indicator

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MOQ : 01 Unit

PTFE Lined Sight Flow Indicator Specification

Diameter
DN25 to DN200

Flexibility
Rigid

Tolerance
1 mm

Tensile Strength
PTFE lining: 25 MPa

Connection Type
ANSI/DIN Flange

Yield Strength
PTFE lining: 14 MPa

Sealing Type
PTFE Gasket

Product Type
Sight Flow Indicator

Material
PTFE Lined (with body of MS/SS)

Connection
Flanged

Shape
Straight/Inline

Standard
ASME B16.5, DIN, or equivalent

Surface Treatment
PTFE Lining

Outer Diameter
Varies as per pipe size (DN25 to DN200 commonly)

Section Shape
Round

Length
Standard: 150 mm to 500 mm depending on size

Thickness
3 mm PTFE Lining (typically)

Color
White (lining), Blue/Green (body color may vary)

Usage
Visual monitoring of flow

Rated Pressure
Up to 10 bar (150 psi)

Application
Chemical, Pharmaceutical, Petrochemical, Water Treatment Plants

Material Grade
Virgin PTFE lining with IS grades for body

PTFE Lined Sight Flow Indicator Trade Information

Minimum Order Quantity
01 Unit

Payment Terms
Cheque

Supply Ability
00 Unit Per Week

Delivery Time
2-3 Days

Sample Available
Yes

Sample Policy
Contact us for information regarding our sample policy

Packaging Details
Packing as per Customer requirement

Main Export Market(s)
Eastern Europe, Central America, Asia, South America, Africa, Middle East, Western Europe, Australia, North America

Main Domestic Market
Maharashtra

Certifications
ISO 9001: 2008

About PTFE Lined Sight Flow Indicator

PTFE Lined Sight Flow Indicator

Dimensional Data

Size	DN 25	DN 40	DN 50	DN 65	DN 80	DN 100	DN 150	DN 200
B mm	38	54	65	85	105	135	135	180
A mm	160	200	230	290	310	350	406	460
Liner thick mm	3.5	4	4.2	4.5	5	5	6.5	6.5

Lining Material : PTFE / PP (Poly Propyline) / HDPE

Test : Spark Test At 10 Kv

Durable PTFE Lining for Harsh Environments

The indicators inner surface is lined with high-grade virgin PTFE, offering superior resistance to aggressive chemicals and corrosive media. The linings consistent thickness and precise tolerance (1 mm) guarantee reliable performance and longevity, even under challenging process conditions.

Versatile and Standardized Connections

Available in a wide selection of sizes (DN25 to DN200) and compatible with ANSI and DIN flanges, this sight flow indicator is suitable for integration with international piping systems. Its robust MS/SS body further enhances mechanical stability, making it a preferred choice for various industrial sectors.

Clear and Safe Flow Monitoring

Designed for straightforward, in-line installation, the PTFE Lined Sight Flow Indicator provides continuous, visual confirmation of flow status within pipelines. This allows for immediate identification of blockages or interruptions, significantly improving operational safety and process control.

FAQs of PTFE Lined Sight Flow Indicator:

Q: How is the PTFE Lined Sight Flow Indicator installed in a pipeline?

A: The indicator is installed inline using flanged connections, compatible with ANSI or DIN standards. Installation should follow standard piping practices, ensuring proper alignment and use of PTFE gaskets for optimal sealing.

Q: What types of fluids can this sight flow indicator be used with?

A: Thanks to its virgin PTFE lining and corrosion-resistant MS/SS body, it is suitable for highly corrosive chemicals, solvents, acids, alkalis, and process fluids found in chemical, pharmaceutical, petrochemical, and water treatment plants.

Q: When should you use a PTFE Lined Sight Flow Indicator instead of a regular glass indicator?

A: PTFE lined indicators are recommended when working with aggressive or hazardous chemicals that can degrade glass or metal surfaces, as PTFE provides excellent chemical resistance and non-reactive properties.

Q: Where is this product typically used?

A: It finds application predominantly in chemical processing plants, pharmaceuticals, petrochemical industries, and water treatment facilitiesanywhere inline, real-time visual flow monitoring is required for safety and process management.

Q: What maintenance is required for this sight flow indicator?

A: Routine maintenance involves visual inspection for any buildup or discoloration on the sight glass and periodic verification of the PTFE linings condition. PTFEs inert nature reduces the frequency of cleaning and maintenance compared to unlined units.

Q: What are the main benefits of using a PTFE lined sight flow indicator?

A: Key benefits include outstanding chemical resistance, durability, compatibility with a wide range of fluids, safety in high-corrosive environments, and reliable real-time visual monitoring of fluid flow.

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