Development of the control valve

From the Gas Control Valve applications, the development direction of the following:
Small actuator: reduce costs, improve flow capacity.
Sleeve guide: The guide sleeve, it is beneficial for the help to reduce friction, noise favor, favor the flow characteristics of interchange
Balanced Spool: To reduce actuator thrust or push the moment, a balanced valve plug is an important and dynamic performance also improved its system
Integrated plug and seat: In order to overcome the shortcomings of poor sealing valve seat, using the same material composition integrated plug and seat trim, the leakage rate and at the same time minimize the unbalanced force.
Simple passage: simple flow path, flow resistance is reduced, not only can decrease the pressure loss at both ends of the valve, but also reduce costs.
Seal and friction: friction sealing properties and performance are two aspects of the contradiction, the control valve is designed not only to solve sealing problems, friction and life and other performance indicators also must pay attention to therefore, research stuffing and packing structures are valued, rotary type Propane Control Valve to be more widely applied
Noise reduction: using a variety of ways to reduce noise control valve, for example, the use of noise reduction sleeve and spool, spool using multi-level, limiting the use of noise reduction panels, etc. using extended
Using the pipeline with control valve and restrict the flow capacity of the valve member diameter: help reduce the valve inlet and outlet fluid flow rate, without having to install additional pipe diameter pipe, etc., help to reduce costs, by replacing the flow capacity of the valve member, scalable flow capacity, through the selection of the restricted flow capacity of the valve member correctable error calculated diameter is too large
In the digital information age, will be more use of smart valve positioner or nonlinear law through digital controller, compensate nonlinear controlled object, the less preferred control valve flow characteristics to compensate for nonlinear controlled object
Trim material varies with temperature, therefore, should consider the impact of thermal expansion at different temperatures, but also consider changes in voltage levels and so on at a high temperature, corrosion-resistant materials should be considered, fatigue resistance and other properties.