Baodi 5281 Industrial Electromagnetic Valve

Baodi 5281 Industrial Electromagnetic Valve

There are ordinary valves and explosion-proof 5281EEx pilot valves with servo diaphragms. Depending on their explosion-proof level, they can be used in explosive environments for blocking, metering, and injecting gaseous and liquid media.

Generally used in large-diameter, high-pressure applications, this type of valve structure requires the low pressure of the solenoid valve to not be lower than 0.05 MPa when opened, and there must be a pilot pressure, otherwise it cannot be opened. In addition, the flow capacity of pilot operated solenoid valves is greater than that of direct acting solenoid valves, and the CV can generally reach 3 or more. The purity requirements for compressed air are relatively high, while those for direct acting are not as strict.

Principle of Burkert5281 pilot solenoid valve: When powered on, the electromagnetic force opens the pilot hole, causing the pressure in the upper chamber to rapidly decrease, creating a high and low pressure difference around the closing member. The fluid pressure pushes the closing member upward, and the valve opens; When the power is cut off, the spring force closes the pilot hole, and the inlet pressure quickly forms a lower and higher pressure difference around the closing valve through the bypass hole. The fluid pressure pushes the closing valve to move downward and close the valve.

Baode Burkert Pilot Valve

Overlapping coil system
Brass shell, with DIN 2501 fitting or gray cast iron flange

Maintenance and upkeep of Baodi 5281 industrial solenoid valve

1. regular inspectionCheck the power wiring, power voltage, and whether the coil is soldered off to ensure that the solenoid valve is working properly.

2. Cleaning and maintenanceRegularly clean the solenoid valve to remove impurities and dirt, and maintain the sealing and flow of the valve.

3. Replace the sealIf damaged seals are found, they should be replaced in a timely manner to ensure the sealing of the valve.

4. Avoid excessive usePay attention to the operating frequency and lifespan of the solenoid valve to avoid damage caused by excessive use.

• Zero pressure differential startThe valve can be opened without the need for a pressure difference between the inlet and outlet, suitable for vacuum, negative pressure, or zero pressure environments.

• High voltage differential compatibilityMaximum pressure resistance of 16 bar, capable of stable operation in high-pressure fluid scenarios.

• Low power consumption and fast responseThe coil power is only 8W, with a short response time (about 200ms on and about 1000ms off), suitable for high-frequency switching requirements.

• structural optimizationNo water hammer design reduces fluid impact, operates with low noise (<65 dB), and has a long maintenance cycle.