Four-Window Sight Glass (Fancy Style)

Four-Window Sight Glass (Fancy Style)
Core Highlights:
Made of aluminum alloy, with a four-window + visible inner core design. Available in 3/4" and 1" sizes, it enables "clear visibility and real-time monitoring" of oil flow, providing an intuitive observation solution for pipeline systems.

1. Material & Core Advantages
Aluminum Alloy Body: Lightweight yet strong for easy installation; surface-treated (e.g., anodized) for corrosion and oil-gas erosion resistance, no oxidation/discoloration long-term.
Visual Design: Four-window layout + red inner core. When oil flows, the inner core rotates with the medium. Whether the medium flows and if it’s smooth can be judged from any window without disassembly.

2. Technical Specifications
Compatible Sizes: 3/4", 1" (compatible with NPT/BSPT/BSP threads).
Working Pressure: ≤0.3 MPa (suits hydraulic, lubrication, fuel pipelines).
Temperature Range: -10℃ ~ +70℃ (clear windows and stable structure in wide temps).
Window Feature: High-transparency, wear-resistant glass windows, scratch/impact-resistant for long-term clarity.

3. Applications, Principle & Usage
Scenarios: Hydraulic systems (observe oil flow to identify blockages/leaks), lubrication systems (monitor oil supply to prevent dry friction), fuel pipelines (observe fuel flow rate/on-off in gas stations/industrial settings).
Principle: The red inner core rotates with medium flow. Four windows visualize the core — rotating means normal flow; uneven/no rotation indicates pipeline abnormalities.
Steps:
1. Select Size: Choose 3/4″ or 1″ based on pipeline interface, confirm thread matching.
2. Sealed Installation: Wrap thread with seal tape or apply glue, screw into the pipeline interface to ensure sealing.
3. Observation & Judgment: During operation, observe the inner core via four windows: uniform rotation → normal flow; uneven/no rotation → inspect the pipeline or medium.