In continuous-process industries, real-time visual inspection is a crucial line of defense for quality control, fluid monitoring, and operational safety. A Sight Glass (or sight flow indicator) provides a highly durable, transparent window directly into pipelines, tanks, reactors, or boilers, allowing operators to observe flow direction, fluid clarity, color, and levels without disrupting the system.
Flowbiz Exports Pvt. Ltd. is an industry-leading Sight Glass Manufacturer in Bhavnagar, Gujarat, India. We specialize in engineering high-reliability sight flow indicators that cater to both domestic markets across India and major international industrial hubs.
Every sight glass bearing the Flowbiz Exports name is manufactured to meet the worlds most exacting quality, pressure, and dimensional frameworks:
| Feature | Specification Profile |
| Manufacturing Standards | Compliant with ASTM ANSI, ASTM API, and ASTM DIN |
| Thermal Threshold | Rated for high-temperature operations up to 200C |
| Structural/Disc Components | Premium SS 304 (Stainless Steel) for maximum longevity |
| Pricing Model | Factory-direct pricing with quick global quoting |
| Applications Supported | New pipeline builds and custom industrial retrofits |
Industrial pipelines routinely handle aggressive media under varying thermal conditions. Flowbiz sight glasses leverage specialized, thermal-shock-resistant glass coupled with SS 304 structural components. This combination prevents clouding, scaling, and structural degradation when exposed to harsh chemical compounds, steam, or treated water.
No two process systems are identical. We provide extensive engineering flexibility, allowing clients to customize port sizes, connection dimensions, and structural configurations. Whether you manage a small-scale specialized pilot plant or a sprawling multi-stage refinery, our team provides custom-tailored sight glass dimensions for a perfect, leak-free fit.
Unlike electronic sensors that can drift, fail, or lose power, a manual sight glass provides continuous, uncompromised verification. Its simplicity translates to virtually zero maintenance requirements, zero calibration downtime, and immediate, foolproof visual diagnostics for field operators.
Chemical Processing & Refineries: For real-time monitoring of asset mixing, chemical reactions, and fluid color changes.
Power Generation & Boiler Systems: Essential for tracking condensate lines, steam quality, and boiler feedwater levels.
Nuclear Energy Plants: Engineered under rigid quality control to meet the uncompromising safety levels demanded by nuclear auxiliary loops.
Water & Wastewater Treatment: Placed downstream of filtration units to visually verify water clarity and detect sediment carryover.
A: A sight glass should be securely mounted inline or onto a vessel at a point with high visibility for operators. During installation, the unit must be precisely aligned with adjacent piping to avoid uneven stress on the glass. High-performance, media-compatible gaskets and fasteners must be torqued to exact specifications, followed by a systemic hydrostatic leak test before the line is fully pressurized.
A: Sight glasses should be strategically placed wherever real-time visual verification adds a layer of safety or quality control. Common locations include:
Downstream of filtration or separation systems to monitor efficiency.
On blending or reaction tank lines to check for discoloration or aeration.
Near critical pump discharges to verify fluid movement and detect trapped air pockets.
A: Stainless Steel 304 provides an outstanding balance of mechanical strength, high-temperature endurance (up to 200C), and excellent resistance to atmospheric and chemical oxidation. This ensures the structural frame holding the viewing window remains rigid and rust-proof over decades of service.
A: Flowbiz Exports Pvt. Ltd. operates a streamlined international supply network from our manufacturing base in Bhavnagar, Gujarat, India. Global procurement teams, engineering firms, and distributors can contact our sales department via email to receive comprehensive, factory-direct pricing and expedited logistics quotes tailored to specific project timelines.

Price:
Price 2500 INR / Unit
Minimum Order Quantity : 1 Number
Material : Stainless Steel (SS304/SS316), Carbon Steel, Brass
Features : Leakproof Design, Easy Installation, Corrosion Resistant, High Visibility
Application : Tank Level Observation, Visual Inspection of Liquid Levels in Vessels
Type : Tank Mounted Sight Glass
Price 2000 INR / Unit
Minimum Order Quantity : 1 Number
Material : CS, SS304, SS316, PP, PVC, or as specified
Features : Full view, High visibility, Leak proof design, Corrosion resistant, Easy installation
Application : Inspection of flow in pipelines, chemicals, water, gas, pharmaceuticals, petrochemicals, food processing industries
Type : Double Window Sight Glass
Price 5000 INR / Unit
Minimum Order Quantity : 1 Number
Material : SS 304 / SS 316 / MS / PP
Features : Corrosion Resistant, Leak Proof, Easy Installation, High Visibility
Application : Industrial fluid observation, chemical, pharma, food processing industries
Type : Double Window, Full View
Price 2500.0 INR / Unit
Minimum Order Quantity : 1 Unit
Material : MS
Features : Good Quality
Type : Ms Sight Glass