WF-YL11-21 Stainless Steel Female Thread Impeller Flow Sight Indicator

Overview

WF-YL11-21 female thread impeller sight indicator is a top-view straight-through pipeline visual monitor independently developed by Weifeng Tech. Cast in 304/316 stainless steel, with female thread ends, top borosilicate sight glass and built-in red star impeller, it visually checks fluid flow inside pipelines, widely used in HVAC, water treatment, chemical oil, food & pharmaceutical industries to prevent pump dry-running and pipeline cut-off.

Structure & Features

1.Stainless steel cast body with passivation finish, anti-corrosion for water, oil and mild corrosive fluid, hygienic for sanitary application.

2.Standard NPT/BSP female thread DN15~DN50, screw-in installation without welding, easy to mount and maintain.

3.Top high-pressure borosilicate glass with double fluorine rubber O-ring sealing, temperature & pressure resistant, leak-proof.

4.Sensitive red star impeller spins under tiny flow to display flow rate and flow cut-off status.

Advantages

Full bore without extra pressure drop; compact design for narrow installation space; reliable sealing for medium-high pressure; sensitive response to low flow rate; maintenance-free for long continuous service.

Application

HVAC chilled water system, pure water equipment, chemical fluid pipeline, sanitary pipeline for food & pharma, hydraulic cooling oil circuit.

Customization

Custom available for material(304/316), thread standard and dimension; all items pass factory pressure & leakage test before delivery. Contact us via WhatsApp for sample & quotation.