Control valve according to the drive mode is divided into two kinds of electric control valve and pneumatic control valve to adapt to different conditions and process requirements, electric control valve, the general by the angular travel electric actuator direct drive valve through 4 ~ 20mA or 0 ~ 10V analog signal control valve opening, so as to achieve the purpose of control. Angle control valve used in the main ball valve, butterfly valve. The electric control valve is simple, without compressed air, but the response speed is slow, poor control accuracy and poor regulation, is limited to use in some of the less demanding control accuracy, lower operating frequency of the workplace. In contrast, pneumatic control valve with high control accuracy, fast response, good job stability, suitable for a wide range of applications, is widely used in various fields of process control. As the brain of the regulating valve, the valve positioner plays a decisive role in controlling the overall control valve and field functions. Compared with the traditional electro-pneumatic valve positioner, intelligent valve positioner has more extensive applications and market prospects in control valve control accuracy, response speed, function expansion, and improve the level of automatic control of the valve. Therefore, intelligent valve positioner is regarded as the future development of valve positioner. The new smart valve positioner Different smart valve positioner both structural and functional commonality, but also have their own characteristics. Commonality: As a standard valve positioner (electro-pneumatic converter function), it can be widely used in the position control of various process control valves with pneumatic actuators. As a process controller (with PID function) Pneumatic actuator valve composed of intelligent control valve. It can directly receive the sensor's real-time process value signal and form a relative independent complete process control loop together with the sensor to realize the closed-loop control function. It can be combined with the valve of the straight-stroke pneumatic actuator such as angle seat valve, stop valve and diaphragm valve Etc., the use of external linear position sensor form valve positioning control system; combined with the angular stroke pneumatic actuator valves such as: ball valve, butterfly valve, and diaphragm-type pneumatic control valve, the use of built-in angular position sensor valve positioning control system; Can be used for single-acting actuator valves, such as normally open or normally closed valve, but also for double-acting actuator valve or cylinder control; with analog position feedback output and two binary output signal. Position feedback signal can be the actual position of the valve or the actual process value feedback to the PLC or controller for easy system information collection and monitoring, binary output signal can be extended control valve control functions and improve system automation; good man-machine interface, Easy to operate; large-screen digital LCD display real-time display setpoint and actual value and can display the valve ambient temperature; three-button menu instructions operation, easy on-site commissioning and maintenance.
Lighting Fixture
We diviided the led light according to the using eviiroment. Most of our product is the commercial LED Lighting
Commercial lighting is a term used to describe lighting that is used in commercial spaces, including auto dealerships, distribution centers, churches, factories, offices, and warehouses. Unlike residential lighting, commercial lighting is made to withstand more abuse and has a longer lifespan.
While the focus of residential lighting is often on aesthetics, commercial lighting is task orientated. Commercial lighting systems are designed based on what the application is. For example, in an office-type setting, you may see task lighting, which illuminates specific areas where employees need concentrated light to be able to perform their jobs.
Lighting Fixture,Led Ceiling Lights Round,Light Bulb Ceiling Light,Outdoor Light Bulbs Led
Jiangmen Dilin Lighting High-Tech Co., Ltd. , https://www.jmdilinlight.com