Zhaofeng Instrument is committed to providing efficient and accurate fluid measurement and control solutions for a wide range of industries. Below are several typical application cases of our products in the coal mining, papermaking, and automotive sectors, helping you gain a better understanding of our product applications.

I. Coal Mining Industry: Mining Explosion-Proof Liquid Level and Temperature Sensor (GQY2900/80)

In the coal mining industry, ensuring equipment safety and stable operation is especially critical. A mining client encountered challenges in the hydraulic power system of a roadheader, where the oil tank required both liquid level and temperature measurements. Traditionally, separate installation of liquid level and temperature sensors increased the number of openings on the tank, wiring complexity, and overall costs.

We provided the GQY2900/80 mining explosion-proof liquid level and temperature sensor, which only requires a single opening and one cable to achieve dual measurement functions, perfectly addressing the customer’s challenge.

1. Challenges

• Strict space constraints limited the installation of bulky sensors.

• Installing two separate sensors increased system complexity and maintenance costs.

2. Solution

The GQY2900/80 integrates both liquid level and temperature detection, significantly reducing installation and wiring complexity.

3. Results

Installation became simpler, system efficiency improved, and the customer gave highly positive feedback, with the product earning recognition in the terminal market.

GQY Mining Explosion-Proof Liquid Level and Temperature Sensor

4.Product Highlights

The GQY series explosion-proof liquid level and temperature sensor combines a magnetic position sensor with a temperature sensor in a stainless-steel explosion-proof housing. With an explosion-proof rating of Exdb I Mb, it can operate safely and reliably in underground coal mine environments. The sensor provides dual (4–20) mA current signal outputs without altering the existing signal acquisition method, greatly enhancing the automation level of the equipment.

II. Papermaking Industry: Intelligent Oval Gear Flow Display Controller (SFG-T Series)

In the papermaking industry, accurate flow monitoring of lubrication systems is vital for continuous and stable operation of equipment. A papaermaking client faced the problem of high prices and long lead times for imported flow switches in their grinding machines.

We recommended the SFG-T series intelligent oval gear flow display controller, which effectively addressed the challenges.

1. Challenges

•  Imported devices were costly with long delivery cycles.

•  The customer required more flexible flow control and upgrade options.

2. Solution

The SFG-T series supports real-time and cumulative flow display, dual switch control output, and switch settings that can be configured directly from the instrument panel, enabling flexible equipment upgrades.

3. Results

With stable performance, the flowmeter improved production efficiency. Customer feedback was excellent, and they expressed willingness to expand its application to a wider market.

SFG-T32 Intelligent Oval Gear Flow Display Controller

SFG-T15 Intelligent Oval Gear Flow Display Controller

Customer On-site Application Photos

4. Product Highlights

The SFG series intelligent flow display controller adopts a precision gear volumetric flow sensor, suitable for detecting and controlling medium- to high-viscosity liquids. Featuring a compact design and simple operation, the device can withstand working pressures up to 40 MPa. It is widely used in multipoint precision lubrication systems, with explosion-proof models available for special working environments.

III. Automotive Fuel Precision Filtration Systems: Differential Pressure Gauge (CW60)

Many automotive manufacturers use Zhaofeng’s CW60 differential pressure gauge in the design and production of fuel storage and transport equipment. This instrument is specifically designed for special vehicles, including oil tankers and fire trucks, ensuring precise monitoring of differential pressure in onboard precision filtration systems.

Oil Tank Truck Application

Fire Truck Application

Customer On-site Application Photos

The CW60 differential pressure gauge is designed specifically for filtration equipment and is widely applicable in differential pressure detection of liquids, gases, and dust. With its simple structure, vibration resistance, and ease of operation, it ensures stable performance even in complex working conditions, making it an ideal choice across multiple industries.

IV. Broader Applications

In addition to the three industries highlighted above, our instruments are also widely applied in shipbuilding, aerospace, petrochemicals, power generation, and many other fields.

Zhaofeng Instrument remains dedicated to providing customers with high-quality products and services. We warmly welcome you to contact our professional team for tailored instrumentation solutions that best fit your needs.