Expert Tips for Installing and Maintaining Electric Flat Gate Valves
Installation steps
Preparation before installation:
Location selection: The electric flat gate valve should be installed horizontally on a flat ground, and the height should not exceed 1.5 meters. If installed on a pipeline, ensure that the valve body is vertically upward.
Inspection and cleaning: Before installation, carefully check whether the connection parts are loose. If there is any looseness, tighten the bolts or nuts immediately. At the same time, ensure that there is no dirt between the sealing surface of the electric flat gate valve and the pipeline connection to avoid oil leakage due to poor sealing. If the valve cavity is blocked, it should be cleaned in time.
Electrical inspection: Check whether the power supply voltage is consistent with the requirements of the instruction manual. After turning on the power, check whether the motor rotation direction is correct. Move the transmission part by hand to observe whether the operation is flexible.
Installation process:
Position fixation: Place the electric flat gate valve in a suitable position according to the requirements of the drawing, and fix the bracket. The bracket should be welded with angle steel to ensure stability and reliability.
Pipeline treatment: Clean and purge the pipeline according to the site conditions, keep it clean and dry, and prevent impurities from entering the valve to affect the service life and safety of use.
Opening and closing action: put the manual device in the closed position, turn the motor switch to the appropriate position, start the motor to drive the transmission shaft to rotate, and turn the handwheel clockwise about 90° to complete the opening and closing action.
Trial operation and inspection:
Trial operation: After turning the manual switch to the closed position, open the valve for trial operation for 2-3 minutes, and then put it into normal operation after confirming that there is no abnormality.
Regular inspection: During use, check whether the working state of the electric flat gate valve is normal. If there is any abnormality, deal with it in time.
Maintenance points
Regular inspection:
Sealing inspection: Regularly check the sealing of the valve gate seal pair, valve stem packing and valve cover connection parts to ensure no leakage.
Operation flexibility: Check whether the manual or electric switch operation is flexible and reliable to ensure that the valve can be quickly closed in an emergency.
Cleaning and lubrication: Clean the dirt in the valve cavity regularly and discharge it from the drain port at the bottom of the valve body. At the same time, lubricate the friction parts such as the valve stem, nut, bearing, etc. to reduce wear and prevent rust.
Electrical maintenance:
Electrical connection check: Regularly check whether the cable connection of the electric actuator is firm and the insulation is good to avoid electrical failure.
Control function test: Regularly test the control signal reception and feedback function of the electric actuator to ensure the accuracy and response speed of the control system.
Environmental adaptation measures:
Antifreeze and anticorrosion: When the ambient temperature is 0-40 degrees, pay attention to antifreeze measures and anticorrosion treatment; when the ambient temperature is higher than 60°C, pay attention to heat dissipation and cooling work and fire prevention measures.
Dustproof and waterproof: Take appropriate dustproof and waterproof measures according to the installation environment, especially under harsh or high temperature and high pressure climate conditions.
Maintenance and records:
Establish maintenance files: Establish detailed maintenance files for each electric flat gate valve, record the time, content, replaced parts and other information of each maintenance, so as to track the operation status and maintenance history of the valve.
Develop a maintenance plan: According to the frequency of use, working environment and wear degree of the electric flat gate valve, formulate a reasonable maintenance plan and strictly implement it.
The correct installation and maintenance of the electric flat gate valve is essential for the normal operation of the system. By following the above installation steps and maintenance points, you can ensure the long-term stable operation and extended service life of the electric flat gate valve. At the same time, establishing detailed maintenance files and formulating scientific maintenance plans will help track the operating status and maintenance history of the valve, providing a reference for future maintenance and replacement.