Welcome to I.CH Motion Co., Ltd
Email:sales@ichmo.com      Tel:+86-25-51180871
  Water Valve Actator Damper Actuator
   
                   
 
 
                    
 
Differences Waterproof, Max.IP67 No need for waterproofing
Similarities
           Do leak burst testing
          This valve controller is often used in household applications and requires fire-resistant materials
          Do flame and smoke spread testing
Customization Services Customize interfaces based on the requirements of different valve connection ports, such as shaft coupling Customize shaft coupling based on different connected rotary shaft
Common Points In Customization Services I use a sealed setting for the position of the interface, and try to use a strong nylon material to prevent it from breaking, enhance its lifespan, and prevent conductivity when exposed to water
Customized Packaging Our products can provide OEM services, and the outer shell can be labeled with the customer's brand.
Feature
 
The integrated actuator designed by I.CH with good appearance and a complete IP67 protection, which can not only be applied to opening and closing valves, but can also be used in industrial production scenarios that require a certain amount of self-locking force, manual clutch requirements, and a working range of 90 °.
 
We can provide personalized research and development, design, production, testing, assembly, etc. according to customer needs.
 
Compared with similar products on the market, this air damper actuator drive system that adopts an integrated design is smaller in volume, more convenient in installation, more simple in structure and of high reliability and large load capacity. 
 
The gearbox of the control valve drive system adopts a plastic housing to reduce its weight and powder metallurgical gears inside to ensure its stability.
 

Motor options for two types of actuators

Professional Techincal Team
This area can be fully edited and gives you the opportunity to introduce yourself.

Historical advantages

  We started with electric motors from year 2006, so we have a good understanding of different kind of motor. The core of valve controller is the electrical motor. The torque and control accuracy are determined by the motor. The matching reduction gears inside are also very important. 
  We started with electric motors from year 2006, so we have a good understanding of different kind of motor. The core of valve controller is the electrical motor. The torque and control accuracy are determined by the motor. The matching reduction gears inside are also very important. 
  We started with electric motors from year 2006, so we have a good understanding of different kind of motor. The core of valve controller is the electrical motor. The torque and control accuracy are determined by the motor. The matching reduction gears inside are also very important. 

Stable Partner

We also have excellent valve suppliers as our partners, ensuring quality while finding matching valves that meet our standards and providing a complete one-stop service
Speed
Answer within 24hours
01
Sample
3-7days leadtime
02
Gurantee
Two years warranty
03
Quality Report
Available for each shipment
04

ODM&OEM Process

A Smaller Body More

Compact Size

Ultra small size combined with powerful motor, position indicator and manual control

ISO Mounting

ISO5211 mounting allows direct connection to different kind of valves
ISO5211

Inbuilt Heater

Anti-condenstation heater offered to maximise service life

More Options

Various voltages, different speed, smart control, WIFI, IP rate, timer control and so on
  • Material

     
    Stainless Steel: SS304, SS316
    Copper Material: CW46500, 57-3
  • Material


    Aluminium housing
    PC+PET materials
    UL94-5VA, UL94 V-0
  • Water proof
     


    Water proof to IP67
    Leakage & burst Testing
  • Ball valve
  • Housing
  • Feature

Structural Advantages

Introduction

More Warranty For You

2 years warrangty on valves and actuators, damper actuators and sensors.

Applications

  • Water Valve Actator
    Air conditioning and refrigeration
    Agriculturairrigation
    Food and armaceutical
    Water conservancy project
    Smart home
    Automatic equipment
  • Damper Actuator
    Damper actuator family for HVAC application
    Damper actuator for air volume control
    Damper actuator family for fire and smoke protection dampers


How Electric Valve Actuator Work

The electric rotary valve actuator is an electromechanical equipment used for remote control of rotary valves (such as ball valves and butterfly valves). Compared to pneumatic and hydraulic actuators, electric valve actuators provide a more energy-efficient, cleaner, and quieter valve control method. We sell the packaged sets together with the valve or a separate actuator and added to existing valves.

Electric valve actuator design

Electric rotary actuators convert electrical energy into rotational force, only rotate 90 degrees. The electric motor generates torque, which is transmitted to the valve through the output drive device. The motor voltage options are AC, DC, or they can operate on one of them. The motor is installed in a compact housing, which also includes other components of the actuator, such as gears, limit switches, wiring, etc. The entire component is connected to the valve through a compatible connection interface,such as ISO 5211 standard.

Torque

A valve needs to be rotated 90 ° to fully open or close. To rotate the valve, torque is required. The electric actuator generates this torque and transmits it to its output shaft, which is then connected to the valve stem or shaft. This in turn rotates the ball or disc of the valve, opening or closing the orifice to allow or block flow. The torque generated by the actuator depends on its transmission device and motor capacity. The motor capacity (torque) is an important specification of the actuator, as it requires a torque higher than the valve's required to ensure that the valve can be opened and closed. Usually, the separation torque is specified as the required torque for the valve, as this is the highest torque required to rotate the valve.

Breakaway torque

When the valve is in the open or closed position, the torque required to break free from either position is called the breakaway torque. In other words, this is the amount of torque required to initiate the movement of the valve from a stationary position. Usually, the breakaway torque is higher than the run torque. For example, the breakaway torque of a regular ball valve is about 30% higher than its run torque. The higher breakaway torque is due to its stationary position, where the medium may accumulate in the ball cavity and/or scratch the valve seat, resulting in increased friction, etc. A suitable valve actuator should generate a torque higher than the valve breakaway torque.

Response time

The response time is the time required for the actuator to rotate the valve a full 90 degrees (i.e. fully open or close the valve after issuing a command). Like torque, the speed of the actuator is related to the power of the transmission device and motor. The torque and speed of the actuator are directly related, as torque is inversely proportional to speed. This relationship is influenced by the arrangement of gears. For a given actuator motor capacity, a higher transmission ratio will result in more torque and slower response time compared to a lower transmission ratio. Therefore, if response time is a critical application specification, it needs to be considered together with torque specification requirements.

Control method

Common electric valve actuators have either 2-point control (commonly referred to as just on/off) or 3-point control, but they both have 3 wires.

Voltage

Electric actuators may be DC or AC-powered. They are usually available in the following voltage ratings: 12V, 24V, and 48V for DC. 24V, 48V, 110V, 220V for AC.

Mounting

The actuator has a connection interface that connects them to the valve. This includes an output driver, a square shaft or stem connecting the valve head, and a flange connecting the actuator bolt to the valve. The design and size of this connection interface can be brand specific or standardized, such as ISO 5211. Figure shows the ISO 5211 flange type of valve. Regardless of the brand, different valves and actuators can be interchangeable as long as they follow the same ISO 5211 standard. According to the ISO 5211 standard, there are different flange types that vary depending on the maximum flange torque, size, and number of screws, bolts, or studs.

Electric valve actuator features

Position indicators

The position indicator indicates the open or closed position of the actuator at a given time. There are visual indicators, but there are also electronic position feedback systems that send the position back to your system (i.e. controller). The position indicator can only display the basic open and closed positions, or it can also indicate partially open or partially closed.

Manual override

Manual override is a safety feature present in most actuators. It is usually a mechanical handwheel or handle. This wheel allows you to mechanically close or open a valve in case of power failure or any other emergency.

Manual override is a safety feature of most actuators. It is usually a mechanical handwheel or handle. This wheel allows you to mechanically close or open valves in case of power failure or any other emergency situation.

Limit switches

Limit switches are the electromechanical components of the actuator. They include a closed limit switch cam and an open limit switch cam. When the actuator moves the valve to the open or closed position, the corresponding switch cam will also move. When reaching the end position, the corresponding switch cam cuts off the power. To prevent further movement and provide restricted seating. Extreme valve seat refers to keeping the valve in the desired end position. In some actuators, the limit switch cam is adjustable. This allows you to set a position as the end position, such as 75% open. The limit switch cam can be incorporated into the position indicator as a mechanical linkage between the valve and the actuator.

Duty cycle

The duty cycle specifies the usage time of an actuator between cycles. The valve opening and then closing makes one cycle. The duty cycle is a ratio of on-time to off time, expressed as a percentage. It is calculated using the formula below. An example would be if it takes an actuator 10 seconds to open, 20 seconds to close, then 30 seconds to rest after opening and closing, the duty cycle would be (10+20 / 10+20+30) × 100 = 50%.
(opening time + closing time) / (opening time + closing time + rest) × 100 = duty cycle

Fail-safe

Fail-safety is an important safety function of some automatic valve actuators. Fault safety is designed to close or open valves in the event of a power failure. Such a system requires a form of energy storage, such as a spring mechanism or battery. Normally, the fail safe mechanism will close the valve. In the spring mechanism, when the power is cut off, the loaded spring will automatically close the valve. For backup battery systems, commonly referred to as Battery Safety Loop (BSR), the battery provides power to the actuator to shut it down. The charging time and total speed may vary depending on the size of the battery and actuator. In order to obtain additional redundancy, some actuators will include two versions of fault protection in their design. As mentioned earlier, most fail safe operations will close the valve, but some applications require the valve to be opened in the event of a power failure. An example of this application is the cold water flow entering the heat exchanger. This is because cold water is needed to cool the remaining warm fluid to prevent overheating.

Modulation

Some electric valve actuators have the ability to perform modulation control, which is commonly referred to as DPS (Digital Positioning System). This is the ability to accurately position the valve at any point between fully open and fully closed (i.e. between 0 ° and 90 °). This is necessary for applications that require changing the flow rate. Typically, modulation is achieved using a control loop system and a positioning circuit board (PCB) placed in the actuator

Electrical wiring

This section seeks to explain the various wiring possibilities for 2- and 3-point electric valve actuators as there are significant differences between the two.
  2-point (on/off) control actuators: The three wires are for +, -, and a control wire. To rotate the valve, the control wire needs to be powered to open and un-powered to close or vice-versa. Without power supply to the entire unit, the valve remains in the latest position. For example, the AW1-R series from JP Fluid Control uses this open/close wiring scheme.
  3-point control actuators: The three wires are for - and two for + (control wires). Therefore, the two control signals can open or close the valve depending on which one is powered. 3-point control also offers the ability for intermediate stops (partially open). The two control wires should never be powered at the same time, or damage will occur to the actuator. For example, the AW1 series from JP Fluid Control uses this 3-point wiring scheme.
Before installing, verify that the actuator code matches the connection diagram. Improper installation can permanently damage the actuator or lead to dangerous situations. The actuators have internal position switches, which results that only energy is consumed during opening or closing.

2-point AW1 DC electric actuator

Connecting the control wire (blue) opens the valve in 6s. Once the control wire shuts down the valve closes in 6s. The actuator only consumes energy during opening and closing.

3-point AW1 AC electric actuator

Connecting the blue control wire opens the valve in 16s. Connecting the brown control wire closes the valve in 16s. If both control wires are disconnected, the valve will remain In the current position. This way the position of the valve can be regulated. Never connect the blue and brown control wires at the same time, as this will damage the actuator. The actuator consumes energy only during opening and closing.

2-point AW1 AC electric actuator

Connecting the control wire (black) opens the valve in 16s. Once the control wire shuts down the valve closes in 16s. The actuator consumes energy only during opening and closing.

3-point AW1 DC electric actuator

By connecting the brown control wire the valve closes in 6s. Connecting the black control wire ensures the valve opens in 6s. If both control wires are connected, the valve will remain in the current position. In this way, the position of the valve can be regulated. Never connect the black and brown control wires at the same time! This will damage the actuator. The actuator consumes energy only during opening and closing.

Standards

IP protection grade (IEC 60529)

Electric valve actuators have a protection class IP (ingress protection) rating. The IP rating specifies the actuator''s degree of protection against dust, water, and other environmental hazards. The IP 54 rating of ball valve actuators means that these actuators are partially protected from dust and can resist water spray.

Duty type (IEC 60034-1)

This is an international IEC (international electro-technical commissions) standard for rotating electric devices. For electric actuators, it specifies the duty type and duty cycle of their electric motors. An actuator rated S2 30min can continuously operate short-time duty for 30min after which the motor should be allowed to rest. It can be restarted after its temperature has returned to room temperature.

Low voltage directive (LVD) 2014/35/EU

The LVD certification ensures that low voltage electrical equipment, such as actuators, provides sufficient protection for its users.

Electromagnetic compatibility (EMC) 2014/30/EU

An EMC-certified actuator neither generates nor is affected by electromagnetic disturbance.

Material

The components on the actuator are contained in a compact housing. The most common housing materials are plastic and aluminum. Special applications may require special housing materials.

Electric valve actuator applications

Electric valve actuators are used to remotely control ball and butterfly valves. They greatly increase the ease of operating quarter-turn valves by providing remote, automated control. They also provide sufficient torque for valves that require higher torques than cannot be generated by a human. These actuators are used in industrial automation, irrigation, water supply, fluid dosing, heating systems, and fluid transportation or transfer.

Electric valve actuator selection criteria

We specialized in researching, developing and servicing electric motors, gearbox and high precision gears with small module. Read more >>

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Add:3B-B302 LianDo U Valley Guli Technology industry partk, #16 Xinggu Road, Jiangning District, Nanjing, P.R. China

Tel:+86 25 5118 0871
Fax:+86 25 5118 0872 
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Email:sales@ichmo.com
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