Executing Agency
An actuator is a mechanical device used to control valves, dampers, etc.
Pneumatic actuator
Pneumatic actuators can provide high stem power output under harsh working conditions. These actuators are typically operated by air pressure, but some can be operated by process liquids themselves.
Diaphragm actuator
The action mode of Fisher springs and diaphragm pneumatic actuators can be "positive action", that is, the air entering the diaphragm cover causes the actuator push rod to move downward. This' gas shut-off 'action compresses the spring, which in turn pushes the actuator push rod upwards again when the gas source pressure drops or disappears.
In addition, the action mode of spring and diaphragm pneumatic actuators can be "reaction", that is, the air entering the diaphragm cover causes the actuator push rod to move upward. This "air opening" action compresses the spring, which in turn causes the actuator push rod to move downward when the air source pressure drops. This is the most common type of diaphragm actuator, as the spring will cause the valve to be in the "fault automatic closing" position when the air source disappears. Fisher? 3024C
The Fisher 3024C actuator is a compact spring-loaded pneumatic diaphragm actuator with a cast iron bracket connection, suitable for general-purpose straight through valves. It can position the valve core based on the pneumatic output signals of different controllers or valve positioners in the actuator diaphragm. The 3024C actuator can be assembled in a positive or negative action mode and can provide reliable operation for automatic control of valve opening and closing or throttling.
Characteristics and advantages
Diversified applications - providing eight different settings, there is always one actuator size that meets your needs. Multiple spring combinations can accurately select actuator thrust and valve stroke.
Reversible operation - The design is simple, and no other components are required to switch the operation from positive to negative. Changing the operation method can be easily completed on site.
High thrust capability - The molded diaphragm and high-strength diaphragm cover can achieve a diaphragm cover pressure of up to 6 bar, thereby achieving high push rod thrust for a given size diaphragm.
Rigid connection - using a clamp type valve stem connection method to ensure reliable operation while facilitating installation, without including connecting rods, so there is no need to worry about idling and inaccurate valve positioning.
Sturdy structure - The cast steel bracket and high-strength steel membrane cover provide stability, corrosion resistance, and durability, as well as anti misuse features.
Extreme temperature applications - The construction materials of the actuator have been carefully selected and can be used in a wide range of environmental temperature conditions, from -40 ° C to+82 ° C.
Compact design - The compact size minimizes the required weight and space to the greatest extent possible.
Regarding the Fisher brand
Emerson Fisher valves provide time tested innovative solutions that can help customers reduce equipment maintenance costs, lower capital requirements, reduce compliance costs, and improve process availability.
This will be achieved through world-class products, including Fisher positioners, Fisher regulators, Fisher control valves, Fisher valves, Fisher regulators, Fisher pressure reducing valves, Fisher control valves, Fisher instruments, and performance services, all of which are the most reliable products in the process control industry.
Fisher Company Introduction
Fischer Control Equipment International Limited was founded in 1880. At that time, in Marshalltown, Iowa, USA, our founder William Fisher invented the first pump regulator and planted Fisher's seeds in the small town. Since then, Fisher has achieved tremendous development through years of hard work and has become a recognized brand.
Emerson purchased Fischer in 1992 and merged with another world leader in the process instrumentation field, Rosemount, to establish Fischer Rosemount to better meet our customers' requirements for a complete range of applications and process control. In April 2001, Fischer Rosemount was renamed Emerson Process Management.
Fischer's business scope
The industries served include: petroleum and gas, paper and pulp, oil refining, food and beverage, chemical and petrochemical, pharmaceuticals, electricity, metals and smelting, semiconductors; The product and service scope includes: control valves and actuators, digital valve controllers, digital level controllers, AMS ValveLink software, field installed instruments, quick replacement parts services, regulators, etc.