Function of valve
1. Flow control: The valve can control the flow of fluid in the pipeline by opening or closing and adjusting the opening of the valve to achieve fluid regulation and control.
2. Flow control: The valve can change the flow direction of the fluid, so that the fluid flows along a specific pipeline path, to achieve the flow of shunt, confluence and other operations.
3. Pressure control: The valve can adjust the pressure in the pipeline system, and control the fluid pressure by adjusting the opening of the valve to ensure the normal operation of the pipeline system.
4. Fluid cut-off: The valve can be completely closed to cut off the fluid flow in the pipeline, used to stop the fluid flow or isolate a part of the pipeline system.
5. Fluid regulation: The valve can adjust the flow rate, flow rate and direction of the fluid as needed to meet different process and system requirements.
6. Prevent backflow: The valve can prevent fluid from backflow in the pipeline and avoid equipment damage or system failure caused by fluid backflow.
7. Safety protection: The valve plays a safety protection role in the pipeline system, which can be closed in time when the system is abnormal to prevent accidents.
How to choose the right valve to use in the pipeline
1. Fluid properties: First of all, consider the nature of the fluid in the pipeline, such as liquid, gas, steam, etc., as well as the temperature, pressure, corrosion and other characteristics of the fluid. Select the appropriate valve material and sealing material according to the nature of the fluid to ensure that the valve can withstand the corrosion and high temperature conditions of the fluid.
2. Flow requirements: Select the right valve diameter and flow characteristics according to the flow requirements of the pipeline system to ensure that the valve can meet the flow control requirements of the system.
3. Pressure requirements: Consider the working pressure range in the pipeline system, select the appropriate valve rated pressure to ensure that the valve can withstand the working pressure of the system.
4. Control mode: Select the appropriate valve type according to the control requirements of the pipeline system, such as manual operation, electric operation, pneumatic operation, etc., to meet the control requirements of the system.
5. Fluid temperature: Consider the temperature range of the fluid in the pipeline system, select the appropriate valve material and sealing material to ensure that the valve can work normally under high or low temperature conditions.
6. Leakage requirements: Consider the requirements of the pipeline system for leakage, and choose a valve with good sealing performance to reduce the risk of leakage.
7. Safety requirements: Select valve products that meet relevant standards and certifications to ensure that the valves meet safety specifications and ensure the safe operation of the pipeline system.
8. Brand and quality: Choose well-known brands and valves produced by manufacturers with a good reputation to ensure reliable product quality and guaranteed after-sales service.
All kinds of materials of the valve are applicable
1. Carbon steel: Carbon steel valves are suitable for general industrial applications, with good strength and wear resistance, but not suitable for corrosive media.
2. Stainless steel: Stainless steel valve has good corrosion resistance and high temperature resistance, suitable for chemical, food, pharmaceutical and other fields.
3. Brass: Brass valve is suitable for low pressure, low temperature water, air and other media, with good thermal conductivity and processability.
4. Cast iron: Cast iron valves are suitable for general industrial applications, with high strength and wear resistance, but not suitable for corrosive media.
5. Alloy steel: alloy steel valve has high strength and wear resistance, suitable for high temperature and high pressure conditions, such as petroleum, chemical and other fields.
6. Copper alloy: Copper alloy valve is suitable for low pressure, low temperature water, air and other media, with good thermal conductivity and corrosion resistance.
7. Plastic: Plastic valves are suitable for general industrial applications, with good corrosion resistance and chemical resistance, suitable for corrosive media.
8. Cast steel: Cast steel valve is suitable for high pressure, high temperature conditions, with high strength and wear resistance, suitable for chemical industry, petroleum and other fields.
Maintenance of valve
1.Regular inspection: regularly check the appearance of the valve, sealing performance, operating performance, etc., find problems in time to deal with, to avoid small problems into big problems.
2. Clean the valve: clean the valve surface and inside regularly to prevent the accumulation of dust and impurities from affecting the normal operation of the valve.
3. Lubrication: Regularly fill the moving parts of the valve with appropriate amount of lubricating oil to maintain the flexibility and tightness of the valve.
4. Adjust the valve: Adjust the opening of the valve as needed to ensure that the valve can meet the flow and pressure requirements of the system.
5. Prevent freezing: In the cold season, pay attention to prevent the valve from freezing or freezing, and take corresponding anti-freezing measures to ensure the normal operation of the valve.
6. Prevent corrosion: For corrosion-prone valves, check the anti-corrosion coating of the valve regularly, repair or replace it in time, and extend the service life of the valve.
7. Prevent leakage: check the sealing performance of the valve regularly, and deal with the leak in time to avoid damage to the system caused by the leak.
8. Prevent overload: to avoid the valve in overload state for a long time, to avoid damage or deformation of the valve.
9. Prevent vibration: to prevent the valve from external vibration or impact, to avoid valve damage or failure.
In general, regular maintenance and maintenance can effectively extend the service life of the valve and ensure the normal operation of the valve. When maintaining valves, it is recommended to follow the maintenance manual or instructions provided by the manufacturer to ensure proper operation. If you encounter valve failure or problems, it is recommended to contact professional valve maintenance personnel for handling.