Flameproof solenoid valve with AC electromagnet drive for automatic one-way control of water and non-corrosive liquids in mines and other gas-risk environments.
The Flameproof Solenoid Valve is an automatic control component designed for hazardous environments such as coal mines with gas and coal-dust explosion risks. It uses an AC electromagnet as the core drive component: when the coil is energized, electromagnetic force drives the valve spool for one-way flow control, mainly controlling clean liquid media such as water and other non-corrosive liquids.
Underground automation relies on valves that can open and close pipelines automatically — for spray systems, cooling circuits, dust suppression, hydraulics and utility water — but the controlling solenoid must be safe in an atmosphere where gas and coal dust may be present. The Flameproof Solenoid Valve is an automatic control component designed for exactly these hazardous environments.
The valve uses an AC electromagnet as its core drive component. When the coil is energized, electromagnetic force drives the valve spool to open or close the flow path for one-way fluid control; when de-energized, the valve returns to its safe state. This simple, positive-acting design gives fast response to control signals and precise switching of pipeline states — properties that make the solenoid valve a basic element in pipeline automation.
The valve is mainly suitable for controlling clean liquid media such as water and other non-corrosive liquids without suspended particles, which covers the majority of underground utility and process pipelines. Being flameproof, the complete valve can be installed in hazardous areas, bringing automated flow control directly to the point of use in coal mines and other gas-risk industrial plants.
| Parameter | Value |
|---|---|
| Drive | AC electromagnet |
| Function | One-way flow control, automatic on/off |
| Media | Clean liquids, water, non-corrosive liquids without suspended particles |
| Control | Fast response to electrical control signals |
| Safety Design | Flameproof |
| Typical Use | Pipeline automation in mines and hazardous plants |
Water spray and dust-suppression control, cooling water circuits, hydraulic and utility pipelines, and automated fluid control in hazardous industrial environments.



Flameproof and intrinsically safe belt surface flaw detection image processor for real-time detection of bulges, peeling, cracking, tearing, edge wear and belt-joint abnormalities, AC 127 V.
Four-module environmental monitoring system for metal and non-metal mines — safety monitoring, precise personnel positioning, wireless communication and emergency broadcasting with 2-hour UPS backup.
CAD-based mine design assistance system with GIS and 3D GIS technology for roadways, sections and intersections, integrating 2D and 3D design inside CAD for coal-mine engineers.
Flameproof reversible vacuum magnetic starter for 380/660/1140 V mine motors up to 200 A, with local/remote control and overload, short circuit, phase-loss and leakage protection.
Flameproof and intrinsically safe vacuum feeder switch for 1140 V/660 V mine networks up to 1000 A, with undervoltage, overload, short circuit and selective leakage protection.
Flameproof and intrinsically safe mining speaker with an imported high-power stereo hi-fi amplifier chip for clear voice and alarms in roadways, rest rooms and parking areas.
Flameproof and intrinsically safe lithium battery power supply for underground coal mines, with automatic fast switchover and certified safe operation in gas and coal-dust environments.
Flameproof and intrinsically safe mining computer serving as a high-performance control core for belt conveyor centralized control, pump-room automation and underground digital mining.