Electric Ball Valves

Select and buy a electric ball valve online for your application. Electric ball valves, also called a motorized ball valve, are used to control the flow of a media, liquid or gas, by means of a rotating ball with a bore. The rotating ball is controlled by an electric actuator that is capable of turning it. A ball valve is one of the most common valves due to their simple operation, reliability, long service life, and wide range of application uses.Get more news about Electric Ball Valve,you can vist our website!

2-way electric ball valves have 2 ports, an inlet and an outlet. The media flows from one direction to the other and the valve is used to open or close the flow. A 2-way ball valve is commonly called a shut off valve.
3-way electric ball valves have 3 ports. The bore in the ball is not straight, but rather in an L or T formation. This allows for various circuit functions (flow directions) for the valve. It can be used to distribute, mix, or divert flow in the desired direction. Therefore, any of the 3 ports can be an inlet or an outlet.
Electric ball valve acccessories include ball valves with an ISO-top (suitable for an electric actuator).
Electric Acuated
An electric actuated ball valve can be broken down into two main components. The electric actuator (servo motor) and the ball valve. For a 2-way ball valve, the electric motor can turn the ball 90 degrees to be either fully open or fully closed. For a 3-way valve, the electric actuator can turn the ball between different circuits depending if it is an L-port or T-port ball valve. They are mounted together typically with a standard flange adhereing to ISO 5211. This allows both the electric actuator or ball valve to be swapped out with another one using the same flange size. There are various housings and sizes of electric ball valves to allow you to find the right one for your application.

An electric actuated ball valve can be controlled to be open or close (2-point or 3-point control) or modulating. A 2-point and 3-point control only requires the electric control valve to be powered on to open or close the valve completely. Once in the position, it does not require power. A modulating electric ball valve is capable of positioning the ball valve opening anywhere between 0 and 100%. Any of the control methods will provide a consistent performance in a robust package. Depending on the size of the valve and actuator, they can be fast acting ball valves for quick flow changes. Often times, there is a manual override feature to turn the valve encase of a power failure. A motorized ball valve is great for remote controlling and/or for an automated application. They are commonly used as an electric water ball valve or for heating units.

Air Actuated Ball Valves

The ABVA requires a 4-way air solenoid valve(Part # 8345G1), and ABVS requires a 3-way air solenoidvalve (Part # 8320G13) to control actuation. Compressed airshould be filtered and lubricated. The hex nuts used to mountthe actuator are tapped to facilitate piping support.Get more news aboutpneumatic actuated valve,you can vist our website!

A 3/4" ball valve in Geon® PVC with Viton® seals and BSP threaded connections will be used as an example. The part number, as shown below, would be ABVA075XVT-PV. If this used standard NPT threads, the X would be left out of the part number. If the valve is to be ordered with a "Fail-Safe" (spring return) actuator, change ABVA to ABVS in the part number prefix. All of the possible permutations are shown under the part number in the table below.

Hyvair’s pneumatic actuated ball valves are available in three actuator sizes designed to accept multiple ball valve types from 1/2” to 2”. Actuators are stocked in double acting and spring return option with high torque ratings. Air pilot spool type valves are available in five sizes with several spool type options; with standard and Namur mounting. Hyvair’s poppet type valves are available with air or solenoid actuation, and stocked with 1/2” and 3/4” NPT porting.

Control valves need actuators to operate. This tutorial briefly discusses the differences between electric and pneumatic actuators, the relationship between direct acting and reverse acting terminology, and how this affects a valve's controlling influence. The importance of positioners is discussed with regard to what they do and why they are required for many applications.

One form of controlling device, the control valve, has now been covered. The actuator is the next logical area of interest.

The operation of a control valve involves positioning its movable part (the plug, ball or vane) relative to the stationary seat of the valve. The purpose of the valve actuator is to accurately locate the valve plug in a position dictated by the control signal.

The actuator accepts a signal from the control system and, in response, moves the valve to a fully-open or fully-closed position, or a more open or a more closed position (depending on whether ‘on/off’ or ‘continuous’ control action is used).
Piston actuators

Piston actuators are generally used where the stroke of a diaphragm actuator would be too short or the thrust is too small. The compressed air is applied to a solid piston contained within a solid cylinder. Piston actuators can be single acting or double acting, can withstand higher input pressures and can offer smaller cylinder volumes, which can act at high speed.

Diaphragm actuators

Diaphragm actuators have compressed air applied to a flexible membrane called the diaphragm. Figure 6.6.2 shows a rolling diaphragm where the effective diaphragm area is virtually constant throughout the actuator stroke. These types of actuators are single acting, in that air is only supplied to one side of the diaphragm, and they can be either direct acting (spring-to-retract) or reverse acting (spring-to-extend).

Double-Acting Pneumatic Actuated Ball Valve
The actuator uses compressed air to both open and close the ball valve. This is the most popular option and the best choice for the majority of applications. In the event of a power loss, the actuator will return the ball valve to the closed position.Get more news about pneumatic actuated valve,you can vist our website!
Compressed air is used to open the ball valve. When air pressure is a removed, a failsafe spring forces the ball valve closed. In the event of a power or compressed air failure, the valve will return to the closed position.
A Gemini Valve industry first, these ball valves combine the service life of our double-acting models with the failsafe feature of spring-return models. The actuator operates as a double-acting actuator, but includes spring return modules to ensure the valve fails closed in the event of power or compressed air loss.
A solenoid valve is used to pilot air to the pneumatic actuator to automate the flow of media. All pneumatic actuated ball valves require some form of air control valve to operate. Our GP Solenoid Valves flush mount to the actuator via a NAMUR-compatible interface and act as an integral component of the assembly. This component is optional and may not be required if a solenoid bank or other air control device is utilized.
Pneumatic actuated ball valves are found in factories and manufacturing facilities. They are also commonly used on OEM equipment where compressed air is accessible, such as liquid filling equipment or automotive fluid fill systems.

Designed for high cycling, our Performance Automation Series of pneumatic actuated ball valves offers exceptional service life in a compact, low-cost package.These ball valves feature a superior valve-to-actuator mounting system and space-saving design. Additional features include:

Double-Acting, Double-Acting with Failsafe & Spring-Return Models
Proven Rack & Pinion Design
1/2 to 1 Second Cycle Time
Aluminum Body with Hard Anodized Surfaces
Temperature: -30° to 350°F (Model Dependent)
Air Supply Required: 60 to 125 psi
Air Supply Connections: (2) 1/8″ NPT or NAMUR Interface
Optional Integral Solenoid Valves & Limit Switches

These lighting fixtures embrace the simple and strong aesthetic of old factories and industrial spaces. They prioritize functionality, whilst setting the mood of any space they're installed in.

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The best part?

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How to Choose the Right Industrial Ceiling Light
Your choice of industrial ceiling lights will vary depending on the kind of setting you want to achieve. If you want to keep things minimalistic, you can buy a simple flush mount light.

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In the end, no matter what style you go for, remember to look into the following three factors:

Pneumatic actuated valves used compressed air flowing into and exhausting from an actuator to open and close the valve. The type of pneumatic actuator required depends on the actuator valve. Valves requiring linear motion (gate, globe or diaphragm valves) typically require a pneumatic diaphragm actuator. Quarter turn valves (ball and butterfly valves) typically require either a rack-and-pinion actuator or a scotch yoke actuator. We'll discuss the two types on quarter-turn air actuators in greater detail.Get more news about pneumatic actuated valve,you can vist our website!

Scotch yoke actuators are composed of a piston directly connected to a slotted yoke. A pin on the rotating shaft rides in the yoke slot, converting the linear motion to rotational motion in much the same way a crankshaft converts the linear motion of a piston connecting rod. Scotch yoke actuators have a nonlinear torque profile, with the highest torque at the beginning and end of the stroke. Scotch yoke construction is readily scale-able, making this type of actuator suitable for large pneumatic actuator valves requiring high torque.

Rack-and-pinion actuators use a piston to drive a toothed shaft (the rack) which is geared to the actuator output drive (the pinion). They are typically used in lower torque applications, offer a more precise control and an even torque throughout the stroke.

For purposes of this discussion, we'll focus on quarter turn actuators. Pneumatic quarter turn actuators operate in two different modes: double acting and spring return.

Double Acting

Double acting actuators use compressed gas driving a piston to both open and close the valve. These actuators have two ports to pass and exhaust the gas. Compressed gas is fed through the first port, causing the actuator to close the valve, and then exhausted out the second port. To return to the original position the supply and exhaust functions are reversed.

Spring Return

Spring return actuators typically have a single port to both pass and exhaust the compressed gas. Unlike double acting actuators, spring return actuators are driven in a single direction and, when the gas is exhausted, use springs to return to the original position. The valve can be installed to return to either the closed or open position; the more common mode is normally closed.

Controlling Pneumatic Actuators

As we've seen, actuators with pneumatic action require compressed air to be supplied and exhausted at certain ports at certain times. In the case of double acting actuators, both ports serve as supply and exhaust ports depending on actuator position, and for spring return actuators a single port serves as both the supply and exhaust port. This necessitates some sort of external switching.

This is often accomplished via an external bank of pilot valves. An electronic controller (like a PLC) opens and closes pilot valves which in turn actuate the main air pneumatic valves. However, in large plants or outdoor applications the valve bank may be far from the actuator. In this case long runs of small-diameter pneumatic lines are impractical due to the line pressure loss and the potential for leaks at connections. Instead, it is preferable to run electrical wires directly to the valve and control the valve locally. Compressed pilot air may be supplied by a short run from the piping of the main plant.

Direct mount pilot valves accomplish this by using an electrically actuated solenoid valve to control the compressed gas. The solenoid valve mounts directly to the pneumatic actuator. When energized, the solenoid moves a plunger which directs compressed gas into or out of the valve depending upon configuration.

Double-acting air actuator valves are controlled by solenoid valves utilizing a five port, two position (or 5/2) configuration. The five ports are two output, two exhaust and one input. For spring return control solenoid valves use a 3/2 configuration (one output, one exhaust, one input).