Coal safety mine electric explosion-proof gate valve

NegotiableUpdate on 03/08

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Nature of the Manufacturer: Producers

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Overview

Electric explosion-proof gate valves for coal safety mining are usually suitable for working conditions that do not require frequent opening and closing, and keep the gate fully open or fully closed. Not suitable for use as a regulator or throttle. For high-speed flowing media, when the gate is partially opened, it can cause vibration of the gate, which may damage the sealing surface of the gate and valve seat. Throttling can cause erosion of the gate by the medium. The main difference in structural form is the form of the sealing element used.

Product Details

Coal safety mine electric explosion-proof gate valveStructure and composition:

Valve body material: 304/316 stainless steel, corrosion-resistant and wear-resistant, suitable for acidic or particulate media in mines.
Structure: Full bore design to reduce fluid resistance; Flange or threaded connection, in compliance with GB, API, ANSI and other standards.
Gate type: parallel or wedge gate, hard seal (metal to metal) or soft seal (rubber/PTFE).
Function: Vertical lifting motion, cutting off or conducting fluid.

Coal safety mine electric explosion-proof gate valveElectric actuator parameters:
Power supply: AC220V, AC380V or DC24V, explosion-proof type optional (Ex d IIB T4).
Control: Supports switch type (on/off) or regulating type (4-20mA signal feedback), can be remotely controlled or connected to DCS system.
Protection: IP67 protection level, suitable for humid and dusty environments.

ZB ordinary switch type mining explosion-proof valve electric actuatorWorking principle: Receive control signals: External control systems (such as PLCs) send on/off instructions (usually dry contact signals). Motor drive: The internal circuit of the actuator controls the motor to rotate forward (open valve) or reverse (close valve). Deceleration and torque increase: By using worm gears or gearboxes to reduce speed, increase output torque, and drive valves. Limit stop: When the valve reaches the fully open or fully closed position, the limit switch cuts off the power and stops the motor. Overload protection: If the valve gets stuck, the torque protection device will trigger to prevent the motor from burning out.

Coal safety mine electric explosion-proof gate valveworking principle:

Opening process: The electric actuator drives the valve stem to rise, causing the gate to detach from the valve seat and opening the fluid channel.
Closing process: The valve stem descends, the gate presses the valve seat tightly, and the fluid is cut off.
Features: Low flow resistance when fully open, suitable for high flow rates; Close tightly and ensure that the leakage meets the ANSI/FCI 70-2 Class VI standard.

Coal safety mine electric explosion-proof gate valveCore advantages:

Strong corrosion resistance: Stainless steel material is resistant to acid and alkali, oxidation, and prolongs valve life.
High reliability: The electric actuator has overload protection and fault self diagnosis functions, suitable for frequent starting and stopping in mines.
Automated control: supports remote operation, reduces manual intervention, and improves the safety of mining operations.
Convenient maintenance: Modular design, no need to disassemble the valve body to replace seals or gate plates.