Overview
DVPF-4 explosion-proof two-stage rotary vane Vacuumpump is a equipment designed by Yonghao Vacuum brand for extracting flammable and explosive dangerous places gases with explosion-proof grades IA, IB and temperature groups TI-T4. It is widely used in petroleum, chemical industry, scientific research, mines, oil depots, liquefied gas stations, gas pipelines, aerospace, laboratories and other related fields.
Features
1. Equipped with an anti-reverse suction valve to prevent oil from being sucked into the vacuum container during shutdown
2. Equipped with gas ballast valve to meet the Vacuum Level requirements and water vapor treatment capabilities of different customers
3. Explosion-proof logo is ExdIBT4
4. It is treated with explosion-proof, burning-sealed, and intrinsically safe composite explosion-proof technology, which is safe and reliable
Principle
The pump is a two-stage rotary vane structure, and the swirl/spin vane forms a vacuum in the pump cavity to remove gas. The gas ballast valve can adjust the Vacuum Level and process water vapor, and the anti-suction valve ensures that the oil does not flow back during shutdown.
Applications
Petroleum, chemical industry, scientific research, mines, oil depots, liquefied gas stations, gas pipelines, aerospace, laboratories
Steps
1. Connect the power supply (380V)
2. Check the air inlet and outlet interfaces (KF-25)
3. Start the pump and monitor the speed (50Hz: 1440rpm or 60Hz: 1720rpm)
4. Adjust the air ballast valve as needed to control the Vacuum Level
5. After shutdown, the anti-suction valve automatically prevents oil from being sucked back
Notice
• Only for flammable and explosive places with designated explosion-proof grades and temperature groups
• Regularly check the pump oil volume (oil capacity 0.9L) and oil temperature rise (no more than 45 ° C)
• Power frequency 380V to avoid overload
• Pay attention to the noise level (58dB (A)) during operation and take protective measures if necessary
• Follow safety procedures during maintenance to prevent hazards caused by sparks or high temperatures
