Product Introduction: WF-YL11-05P Stainless Steel Tubular Impeller Flow Indicator

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

Overview

The WF-YL11-05P tubular impeller flow indicator is a full-bore, high-pressure visual monitoring device developed for industrial pipelines. Featuring a precision-machined 304/316 stainless steel body, side-mounted transparent sight window, internal thread connection, and built-in impeller, 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-machined 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. Side-Mounted Sight Window with Double Seal
The side-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.

3. Built-In Impeller Indicator System
A red paddle 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.

4. Standard Internal Thread Connection
Both ends are designed with universal internal 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.

Core Advantages

• 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.

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

• Clear Visual Observation: The side-mounted sight window provides a clear viewing angle, allowing simultaneous observation of flow status, media color, impurities, and impeller speed.

• Sensitive Low-Flow Indication: The paddle 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.

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-YL11-05P 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.