WF-YL11-8 Stainless Steel Male Thread Impeller Flow Indicator

Manufacturer: Wenzhou Weifeng Technology Co., Ltd.
WhatsApp: +8618815068623

Overview

The WF-YL11-8 male thread impeller flow indicator is a compact, high-pressure visual monitoring device developed for industrial pipelines. Featuring a precision-cast 304/316 stainless steel body, male thread connection, top sight window, and built-in impeller indicator, it allows clear observation of medium flow conditions. Widely used in water supply, HVAC, chemical processing, food & pharmaceutical, and general industrial systems, it is a key component to prevent system failures such as dry running and flow interruptions.

Key Design & Structure

1. High-Quality Stainless Steel Body
The body is precision-cast from high-quality 304/316 stainless steel with a passivated surface treatment for superior corrosion and wear resistance. It is suitable for water, oil, and weakly corrosive media, with no risk of rust or contamination, meeting hygiene requirements for food and pharmaceutical applications.

2. Standard Male Thread Connection
Both ends are designed with universal male threads to fit DN15-DN50 pipe sizes, eliminating the need for flanges or welding. It is quick to install and disassemble, ideal for direct-connect pipeline scenarios, significantly reducing installation and maintenance costs.

3. Top Borosilicate Glass Sight Window with Double Seal
The top-mounted high-strength borosilicate glass sight window is paired with food-grade fluororubber O-rings for double sealing. With excellent pressure and temperature resistance, it allows clear observation of medium flow and impeller rotation while ensuring the pipeline's pressure-bearing capacity.

4. Built-In Impeller Indicator System
A blue star-shaped impeller inside the tube rotates as the medium flows, providing clear visual confirmation of flow even at low velocities. The impeller speed also roughly indicates the flow rate, intuitively reflecting the pipeline's operating status.

Core Advantages

• Compact Design for Space Saving: The small body structure fits narrow pipeline spaces without occupying extra installation positions, suitable for space-limited industrial scenarios.

• High-Pressure Resistant Double Seal: The stainless steel body and double seal offer excellent pressure resistance, suitable for medium and high-pressure pipeline applications.

• Sensitive Low-Flow Indication: The star-shaped impeller responds reliably to low flow rates, preventing false "no-flow" misjudgments.

• Maintenance-Free Operation: The precision sealing structure and robust design require only periodic sight glass cleaning, making it ideal for continuous industrial use.

• Full-Bore No-Pressure-Loss Design: The straight-through structure maintains the pipe's full bore without additional pressure drop, ensuring no impact on medium delivery efficiency.

Typical Applications

• HVAC systems: Monitoring chilled and cooling water flow to prevent pump dry-running.

• Water treatment: Visual inspection of circulating water and pure water systems.

• Chemical and light industry: Monitoring weakly corrosive fluids and oil pipelines.

• Food and pharmaceutical industries: Hygienic flow monitoring for clean media pipelines.

• Small industrial systems: Flow status observation in hydraulic and pneumatic systems.

Service & Support

All WF-YL11-8 flow indicators undergo strict pressure, sealing, and corrosion resistance tests before leaving the factory. We offer customization for different materials (304/316), sizes, and thread specifications. For inquiries or orders, please contact us via WhatsApp at +8618815068623.