Product Introduction: WF-YL11-05Z Stainless Steel Tubular Impeller Flow Indicator with Control Valve

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

Overview

The WF-YL11-05Z tubular impeller flow indicator with control valve is a multi-functional fluid control device integrating flow regulation and visual monitoring, developed for industrial pipelines. Featuring a precision-machined 304/316 stainless steel body, internal thread connection, transparent tubular sight window, high-sensitivity impeller, and precision needle control valve, it allows real-time observation of medium flow conditions while enabling precise flow regulation. Widely used in water supply, HVAC, chemical processing, food & pharmaceutical, and general industrial systems, it is a key component for ensuring stable system operation and optimizing fluid control.

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. Integrated Sight Window with Double Seal
The central section features a high-strength borosilicate glass sight window, paired with food-grade fluororubber O-rings for double sealing. With excellent pressure and temperature resistance, it allows 360° all-round observation of medium flow, impeller rotation, and impurities, eliminating blind spots in pipeline monitoring.

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. Precision Needle Flow Control Valve
A T-handle needle control valve is integrated at the top, allowing precise stepless adjustment of medium flow rate by rotating the handle. Combining both "visual monitoring" and "flow control" functions, it significantly improves system regulation flexibility.

5. 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

• Integrated Design: Combines flow regulation and visual monitoring into one unit, eliminating the need for separate valves and indicators, simplifying pipeline structure and reducing installation costs and leakage risks.

• 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.

• 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 and regulating chilled and cooling water flow to prevent pump dry-running.

• Water treatment: Flow control and status observation for circulating water and pure water systems.

• Chemical and light industry: Flow regulation and visual monitoring for weakly corrosive fluids and oil pipelines.

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

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

Service & Support

All WF-YL11-05Z 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.