JX-0302

Electric Ball Valve

• Drive power: 220VAC, 50-60HZ (can be customized 24V AC), DC24V
• Power: 6 W
• Action time: 15 S
• Lead length: 50 cm (can be customized)
• Medium: cold / hot water
• Medium temperature: 2 ℃ -95 ℃
• Control: three-wire two control (can be customized three-line control)
• It is suitable for HVAC and status control of the water system. The valve body adopts the ISO228 standard platform, and the actuator uses a synchronous machine that drives the gears steady. The new product is to be met the requirement of customers with compact size, large torque, simple operation and free maintenance, convenient for installation under different working conditions. In addition, the actuator is equipped with a manual handle to open or close the valve in case of a power cut or other emergency.
• DC 24V
  With electric auxiliary switching valve function
  Power consumption; 6W, running time; 5-15 seconds
  Maximum differential pressure; 1.0Mpa
  Low noise, operation noise less than 40DB;
  The ball valve and the actuator are threaded in accordance with the way, quick disassembly
  Suitable for water or ethylene glycol with a concentration of less than 60%
  Fluid temperature 2-94 °C degrees, storage temperature -20-65 °C.
  Working pressure PN 1.6Mpa
  The valve body is brass
  Three lines 2 control
  High temperature resistant

OPERATING PRINCIPLE OF MOTORIZED BALL VALVE

The operation of this type of electric ball valve is not so complicated; The main operation is to rotate the ball valves by a torque. The electric motor of the valve produces torque. This torque is then transferred by a shaft connected to the valve stem. It makes the ball valve rotating. In this case, a precise & enough torque must be generated. Having a gearing system is good for the proper torque. This gearing system connects with the electric motor shaft.

Another vital thing is torque capacity. It’s an essential specification for choosing an actuator. Torque capacity must be greater than the required torque, and it’s a breakaway one. The breakaway torque is the least. Turning the ball valve in a full close or a fully open state is necessary. It will help to turn the ball valve by a certain percentage. Valve manufacturers make it specific all the time.

The whole operation depends on the response time of an actuator. From the technical point of view, you can call the speed of the process is response time. The response time or operation time of an electric actuator is inversely proportional to the torque of the actuator. The gear system describes the relationship between speed and torque, and A higher gear ratio makes more torque. More torque makes a lower response time.

Actuators are comfortable with 12V, 24V, and 48V direct current. If alternating current, the voltage value will be 24V, 48V, 120V, 130V, and 240V. You can use a limit switch to control the current. It will stop the current when the valve is at full close or open state. Sometimes there needs a modulating control. Motors can carry out the power of modulation. And this can fix the position of the valve. Modulation control makes the situation easier at any point between opened and closed; It means the work between 0° and 90°; This is useful for a valve. It can regulate the flow rate through the valve. You can also use a positioning circuit board in the actuator. It helps to modulate the electric motor.

MOTORIZED BALL VALVES FOR HVAC APPLICATIONS

Two distinct types of rotary actuators are available for HVAC application. Among them, one is the basic start/stop unit. This unit defines that the valve is either at a fully open or whole close state. Another type of actuator makes position between 0 and 90° using a control signal. And it’s because of modulating control. Which operation slower. It makes perfect flow control for HVAC applications. The flow optimizer makes the flow rate increase. It works in direct proportion to the rotation of the ball.

Monitoring the percentage of flow is important. Rate of flow changes with the optimizer disc variation as the ball rotates. Valve without the optimizer causes a sudden increase in the flow. This precise control is helpful for applications like mixing water on heat exchangers.

Replacing the actuator is very crucial for HVAC applications. First, make sure the actuator drive tab and the valve stem slot are in the same orientation. If not, you should rotate the valve stem with a screwdriver to align. After that, press the actuator onto the valve stem. Then swap the locking pin on either side.

ADVANTAGES OF USING MOTORIZED BALL VALVE

• Low resistance with the medium
• Easy for installation and transportation because of lightweight and small volume components
• Environmentally friendly and non-toxic. So that pure water and drinking water flow system is convenient
• Greater flow capacity
• Reasonable price
• Sustainable service life.
• Greater Cv (molar heat capacity at constant volume) value than solenoid valves
• Automated systems
• Operating cost is less than solenoid valves
• Anti-water hammer
• Automated systems
• Operating cost is less than solenoid valves
• Anti-water hammer