Category Archives: Uncategorized

How does an Electric Actuator

 

Electric Valve Actuator

 

 

 

 

 

 

 

 

Components of an electric actuator

An electric valve actuator is made of many parts but few of them are important and it can be helpful to understand how they all work together in the whole actuator.

A Motor can be of any voltage used over the world and in different industries ranging from, petroleum, paper pulp, mining, air conditioning and refrigeration, food beverage, steel industry, chemical and petrochemical.

A brake is fitted on top of the motor to halt the media from forcing on the valve and opening it by the pressure alone.

A motor start capacitor gives the motor the necessary force to start.

Limit switches are used to provide a certain amount of electrical contacts in the open, close or intermediate position. Standard electric valve actuators have two limit switches, one to move it to an open position and one to move it to a closed position to systematically control rotary travel. Cams, slided on the shaft, activate the switches when reaching the desired position.

In order for the motor to start the capacitor is always needed to give enough power to the motor to successfully start.

The brake is being powered in the closed position to hold the motor in position. If no brake is fitted, the danger is that the pressure of media inside the pipe pushes the valve and inevitably opens it slightly. The actuator will sense the valve being forced open and will rotate again to full close position. Repeating this action over and over, as the media pressure pushes the valve back open. Over time, this will damage the motor and the actuator

For more about the components for a valve actuator get in touch with the professional at Fluid Control Valves today!

Component vs. Cartridge Seals

Component vs. Cartridge Seals

Mechanical seals consist of a rotating element and a stationary element, each with a lapped, precision-smooth mating face. Seal performance is established mainly by the condition of the faces and the pressure applied to them. Other significant factors are vibration, heat and pumpage characteristics. Depending on the application and user’s needs, different seal types may… Continue Reading

Do My Automated Valves Need Repairs or Replacements?

Do My Automated Valves Need Repairs or Replacements?

All industrial equipment, regardless of its quality, will take damage from wear and tear, as well as from other sources, during their period of use. Even with consistent, regular maintenance, which significantly extends the lifespan of such equipment, repairs and even replacements will need to be done at one point or another. Automated valves that… Continue Reading

How A Valve Condition Monitoring System Can Protect your Workers & The Environment?

How A Valve Condition Monitoring System Can Protect your Workers & The Environment?

When working on an Offshore Plant, it is highly important to have a properly functioning valve network to ensure the safety and operational security of the plant. A valve condition monitoring system relies mainly on sensors joined to or near the valves and actuators body to monitor their performance and any stresses they may encounter.… Continue Reading

Selecting Valves for Chemical Processing

Selecting Valves for Chemical Processing

Valves are a common part of many industrial processes. Wherever liquids, fluids or gasses need to be transferred through or stored in a facility, valves ensure that the task is done effectively and safely. They are responsible for regulating pressures and temperatures, ensuring that there is no backflow of fluids and also maintain a safe… Continue Reading

Opportunities and Challenges Presented by Business Automation

There are a number of reasons why you might choose to automate some of the processes in your business. Automation is commonly used to rid processes of tasks that are time consuming, costly and manual work by replacing them with automated ones. Automation, because of its ability to provide uniform quality, also heightens customer experience… Continue Reading

How to Introduce Automation to Your Workplace

While machine automation can boost productivity and lower costs for your business, it can also bring an overwhelmingly large change to your standard operating procedure. This can be discomforting for your employees, your targeted growth and especially your business’s finances. Because of this, any decisions based around automation should be made with absolute care and… Continue Reading