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Visual Flow Indicator Sight Glass

The Visual Flow Indicator Sight Glass is designed for real-time observation of liquid and gas flow in industrial pipelines. Featuring a transparent viewing chamber and robust stainless steel construction, it allows operators to quickly verify flow presence, direction, color, bubbles, and process conditions without interrupting operation.

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Technical data

Visual Flow Indicator Sight Glass for Continuous Process Monitoring

The Visual Flow Indicator Sight Glass provides operators with a simple and reliable method of monitoring fluid movement inside industrial process pipelines. By incorporating a transparent observation chamber into the pipeline, the unit allows direct visual confirmation of flow conditions without disrupting operation.

The sight glass enables observation of liquid presence, flow direction, fluid color, bubbles, foam, sediment, and contamination. This helps operators quickly identify process abnormalities and maintain production efficiency.

Constructed from high-quality stainless steel and equipped with precision-engineered viewing windows, the flow indicator offers excellent mechanical strength, corrosion resistance, and long service life. Window materials can be selected according to operating conditions, including borosilicate glass, tempered glass, fused quartz glass, and sapphire glass.

Available with ANSI, ASME, DIN, EN1092-1, JIS, and customized connection standards, the Visual Flow Indicator Sight Glass can be integrated into a wide variety of industrial systems.

It is widely used in chemical processing, pharmaceutical manufacturing, food and beverage production, petrochemical plants, water treatment facilities, and industrial utility systems where visual flow verification is critical.

Visual Flow Indicator Sight Glass— Technical Data

ItemDetails
ModelSight Flow Indicator(impeller sight glass)
Window materialBorosilicate glass (DIN7080) / Fused quartz / Sapphire glass (optional)
HousingStainless steel 304 / 316 (other alloys on request)
ConnectionANSI 150 / 300 / 600; DIN flanges; threaded BSP / NPT
Working pressureup to 40 bar (dependent on model/window thickness)
Operating temp.-40°C to +300°C (higher temperature customizable)
Visible boreØ 20-150 mm (custom sizes on request)
Standards & certsEN / DIN flange compatibility; material certificates (EN10204-3.1) on request

Visual Flow Indicator Sight Glass— Technical Advantages

FeatureBenefit
Transparent Viewing ChamberDirect flow verification
Stainless Steel HousingCorrosion resistance
Multiple Window OptionsApplication flexibility
Pressure-Rated DesignIndustrial compatibility
Leak-Tight SealingOperational safety
International StandardsEasy integration
Compact ConstructionSpace-saving installation
Long Service LifeReduced maintenance costs

Visual Flow Indicator Sight Glass— Dimensions

DNLH
68560
88560
108570
158570
209580
2511080
3213595
4013595
50155105

KEY FEATURES

Excellent Flow Visibility

Provides clear observation of fluid movement and process conditions.

High Optical Clarity

Allows accurate monitoring of color changes, bubbles, and contamination.

Superior Corrosion Resistance

Designed for demanding industrial environments.

Reliable Sealing Performance

Leak-tight sealing system ensures safe operation.

High Mechanical Strength

Robust construction suitable for industrial service.

Long Service Life

Manufactured from durable materials for extended operational reliability.

Custom Manufacturing Service

We provide tailor-made solutions according to drawings or technical requirements.

TYPICAL APPLICATIONS

FAQ

A:A Visual Flow Indicator Sight Glass is a pipeline-mounted observation device that allows operators to visually confirm the presence and condition of flowing media.

A:Yes. Pressure ratings can be customized according to application requirements.

 


A: Yes. Material selection can be optimized for acids, alkalis, solvents, seawater, and aggressive process media.


A:Body materials include:SS304, SS316L,Duplex Stainless Steel,Carbon Steel

A: Chemical processing, pharmaceuticals, food production, petrochemical plants, water treatment systems, and industrial utility applications.

Need Custom Visual Flow Indicator Sight Glass Solutuions?

Send us your drawings or technical requirements for fast quotation and engineering support.