In the complex working conditions of underground coal mines, the precise measurement of fluids in high-pressure liquid supply, dust suppression/firefighting, and hydraulic support control systems is critical to ensuring safe production and improving operational efficiency. Ordinary flowmeters can rarely withstand the harsh underground environments characterized by high pressure, humidity, and heavy dust. They frequently suffer from measurement inaccuracies, wear and tear, clogging, and frequent failures, which severely restrict efficient mine operations.
The ZHYQ intrinsically safe mining high-pressure flowmeter (GLY50/800 Series) is specifically engineered for underground high-pressure fluid monitoring. With its core strengths in ultra-high pressure resistance, precise measurement, and explosion-proof safety, it has become the preferred alternative to imported brands and the ideal match for domestic mining equipment.
Full-Scenario Coverage for Core Underground Fluid Systems
- ✅ Ultra-High Pressure Resistance, Easily Withstanding High-Pressure Surges Featuring a high-strength, all-stainless-steel structural design with precision-forged core components, it delivers a maximum pressure rating of up to 42MPa—far exceeding conventional mining flowmeters (20–25MPa). It effortlessly handles ultra-high-pressure conditions such as hydraulic support fluid supply and high-pressure water injection, completely eliminating the risks of equipment deformation or leakage caused by pressure shocks.
- ✅ Precise Measurement, Stable and Reliable Data Equipped with high-precision impeller sensing technology and a high-speed microprocessor, it achieves a measurement accuracy of ±1.5% with a flow range of 0–800 L/min. Its wide turndown ratio makes it highly adaptable to scenarios with large fluctuations in underground fluid flow. Additionally, the dual-probe anti-interference circuit design effectively eliminates the impact of pipeline vibration, pressure fluctuations, and underground electromagnetic interference, ensuring stable data during long-term continuous operation.
- ✅ Certified Explosion-Proof for Worry-Free Underground Safety The entire unit has obtained Mining Safety (MA) and explosion-proof certifications. Its intrinsically safe design is perfectly suited for flammable and explosive environments containing gas and coal dust, eliminating safety hazards at the source. Boasting an IP68 protection rating, the fully sealed structure is completely dustproof and waterproof, making it fearless against underground humidity and dripping water while significantly extending the equipment’s lifespan.
- ✅ Easy Installation, Maintenance-Free, Boosting Cost Efficiency Compact in size and structure, it supports horizontal, vertical, or inclined installation without strict straight-pipe run requirements, making it highly adaptable to cramped underground spaces and complex piping layouts. With no mechanically vulnerable parts, it resists wear and corrosion. Long-term operation requires no frequent teardowns or maintenance, dramatically reducing downtime inspection costs and labor input. It supports a 4–20mA signal output, enabling seamless integration with the mine’s DCS system for remote, real-time monitoring and data traceability.

- NO.1 Hydraulic Support High-Pressure Liquid Supply System: Precisely monitors emulsion flow to ensure stable support lifting and face conveyor pushing movements, preventing equipment failures caused by insufficient fluid supply or overloading.
- NO.2 Underground Dust Suppression & Firefighting Water System: Measures dust-suppression sprays and firefighting water flow in real time, ensuring that dust reduction targets are met and emergency water supply remains reliable.
- NO.3 High-Pressure Water/Slurry Injection System: Tailored for measuring high-pressure, impurity-laden media in coal seam water injection and fire-prevention slurry injection, offering excellent anti-clogging and wear-resistant performance.
- NO.4 Other High-Pressure Fluid Scenarios: Monitors high-pressure liquid flow in underground pump stations, cooling, and lubrication systems, providing a one-stop solution to measurement challenges.

When it comes to mine safety, no detail is too small, and precise measurement is the key. With its four core advantages—ultra-high pressure resistance, precision stability, explosion-proof safety, and maintenance-free design—the ZHYQ Mining High-Pressure Flowmeter solves the pain points of underground high-pressure fluid monitoring. It safeguards safe mine production and empowers mines to upgrade toward intelligence and high efficiency!
