What are pneumatic valves?
Pneumatic valves are mainly composed of pneumatic actuators and valves. When compressed air enters the pneumatic actuator, it can it can push the internal piston or gear and other components to move, thereby driving the valve to open, close or adjust.By controlling the air pressure, flow and direction, the valve position and movement speed can be precisely controlled.
Main types of pneumatic valves.
1. Classification by structure:
·Ball valves: HANUMAN has Q941F、QV677H and other series of ball valves. Which adopts high-precision ball and sealing structure to ensure excellent sealing performance, which providing smooth medium channel, suitable for high pressure and large flow scenarios.
·Butterfly valves: HANUMAN has D671X-D641X、D943H and other series of butterfly valves. Which are compact in size, light in weight and flexible operation. They are particularly suitable for occasions that require rapid opening and closing and flow regulation.
Pneumatic valves can also be divided into gate valves, globe valves, etc, according to the structure. Different structures of the valve in the fluid control have their own characteristics in fluid control and can adapt to different working conditions.
2. Classification by function:
According to functional classification, pneumatic valves can be divided into pneumatic control valves and pneumatic cut-off valves.
HANUMAN has many different types of pneumatic control valves, such as: ZJHM, ZDLP, J641H series, etc., equipped with high-precision positioners, which can achieve precise adjustment of the medium and are widely used in process control in chemical, petroleum and other industries.
In addition, there are many types of pneumatic valves, such as pneumatic V-type control valves, pneumatic O-type cut-off ball valves, etc., each with unique characteristic and scope of application.
Comparison between pneumatic valves and electric valves.
- Power source: Pneumatic valves are driven by air, while electric valves rely on electricity.
- Response speed: Pneumatic valves usually respond faster and are suitable for fast switching occasions.
- Safety: In potentially hazardous environments, pneumatic valves are safer and more reliable because they do not require electricity.
- Cost and maintenance: Pneumatic valves are relatively low cost, but may but may require additional air source equipment. Electric valves are convenient for integrate with automation systems, but they are more expensive and rely on a stable power supply.
- Application environment: Pneumatic valves are suitable for high temperature and high pressure environments, while electric valves are more suitable for precise control and automation scenarios. It should be selected according to the specific needs and environmental conditions.
Application areas of pneumatic valves.
- Petrochemical industry: Pneumatic valves have good explosion-proof performance, adapt to high temperature, high pressure and corrosive environment, respond quickly to meet frequent operation needs and ensure production safety.
- Metallurgical industry: Pneumatic valves have simple structure, high temperature resistance and quick response, effectively controlling the flow of high temperature liquid medium and adapting to harsh metallurgical environments.
- Power industry: Pneumatic valves operate reliably and can be quickly opened and closed in emergency situations to ensure the safe operation of the power system, such as accurately controlling steam flow to maintain turbine operation.
- Water treatment industry: Pneumatic valves have high control accuracy, low maintenance costs and stable operation in humid environments, making them suitable for fine control of water treatment processes.
- Food and beverage industry: Pneumatic valves have a simple structure and are easy to clean and disinfect, do not contaminate products, and accurately control fluid flow to meet strict production standards.
- Papermaking industry: Pneumatic valves can work stably in humid and corrosive environments, accurately controlling the flow of water, steam and chemicals to ensure smooth papermaking production.
- Pharmaceutical industry: Pneumatic valves have good sealing properties to prevent leakage and contamination of drugs. They are easy to operate, automated control improves efficiency and quality, meeting the high cleanliness production requirements.
What are the performance advantages of pneumatic valves?
- Fast response speed: The compressed air of the pneumatic valves quickly drive the valve action, which is suitable for emergency shut-off and other scenarios.
- Large driving force: Pneumatic valves can easily control large-caliber or high-pressure valves, and their compact structure makes them easy to install and maintain.
- Good sealing performance: Pneumatic valves can effectively prevent medium leakage.
- High control accuracy: Pneumatic valves can accurately adjust the opening through positioners and other accessories.
- Wide range of applicable medium: Pneumatic valves can handle various gases, liquids, etc., and can be remotely controlled and automatically operated to improve production efficiency.
- Low maintenance cost and strong versatility: Pneumatic valves operate stably and reliably under different working conditions.
The latest technological advances in pneumatic valves.
- Intelligent control upgrade: Pneumatic valves are combined with the industrial Internet of Things to achieve remote monitoring and operation, providing data support for predictive maintenance.
- Application of new materials: high-performance alloys, special ceramics and new composite materials to enhance the valves’ corrosion resistance, high temperature resistance and strength, extending their service life.
- Structural design optimization: Improve the valve stem structure to reduce the risk of wear, optimize the sealing structure to improve the sealing performance of pneumatic valves and reduce leakage.
- Enhanced safety and security technology: Pneumatic valves have automatic fault diagnosis and early warning functions, and some have emergency automatic valve closing technology to ensure safe operation of the system.
In energy conservation and emission reduction, the good sealing performance of pneumatic valves reduces leakage, avoids resource waste and environmental pollution. Pneumatic valves can accurately control flow to meet production needs and reduce energy consumption, which can help automated production improve efficiency and reduce energy waste and labor costs.
Daily maintenance guide for pneumatic valves.
Common faults and solutions of pneumatic valves:
- Valve leakage: The seal is aging or damaged. Check the sealing parts, replace them with high-quality seals in time and ensure they are installed correctly.
- Slow or ineffective action: Insufficient air source pressure or pneumatic actuator failure. Check the air supply and adjust the pressure, clean and repair the actuator or replace the faulty parts.
- Unable to open or close normally: There is problem with the control signals or the valves are block inside. Check the control line and signal source and ensure normal signal transmission. Disassemble the valve to clean impurities and ensure smooth flow.
- Excessive noise: The medium flow rate is too fast or the components are loose. Adjust the medium flow rate, install a throttling device, and check the loose parts of the connections of each component.
Why choose HANUMAN pneumatic valves?
Choosing HANUMAN pneumatic valves has significant advantages:
Various pneumatic valves types are available. HANUMAN provides a wide range of pneumatic valves, including ball valves, butterfly valves, angle seat valves, etc., to meet the needs of different working conditions.
With safety standards and international certification. HANUMAN pneumatic valves are produced in strict accordance with ISO, CE and other international certification standards to ensure product quality and safety.
We have a professional team and perfect after-sales guarantee. We have an experienced technical team that provides comprehensive technical support and solutions to ensure efficient operation. Perfect after-sales service system Perfect after-sales service system can quickly respond to customer needs and maximize customer interests. Whether it is daily maintenance or emergency repairs, users can have no worries.
Choosing HANUMAN pneumatic valves is to choose high quality, high safety and excellent service.
