COVNA Products

COVNA HK-C Electric Three-way Control Valve

The regulating valve is used to regulate the flow, pressure and liquid level of the medium. According to the signal of the adjustment position, the opening of the valve is automatically controlled to achieve the adjustment of the medium flow, pressure and liquid level.

Electric control valve is a control valve that uses power to drive an electric actuator and then drives a valve to throttle. It is an important execution unit instrument in industrial automation process control.

Consult us to get the suitable control valve for your project!

Model

  • Actuator Type :Electric Actuator
  • Body Material: WCB or Stainless Steel 304/316/316L
  • Pressure: 10 / 16 / 20 / 40 / 64 Bar (145 / 232 / 290 / 580 / 928 psi)
  • Temperature Of Media: -40 to 450℃ (-40℉ to 842℉)
  • Suitable Media: Water, Air, Oil, Gas, Steam, etc
  • Voltage: AC220V 50Hz
  • Connection Type: Flanged (ANSI, JIS, DIN, GB)

● Size Range: 2” to 16”
● Pressure Range: 0.6MPa~2.5MPa
● Material: Stainless Steel

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SS316 Motorized Actuator Flange Globe Valve

Features Of HK-C Electric Control Valve:

● The electric actuator is an electronic integrated structure, and there is a servo amplifier inside. The valve opening can be controlled by inputting a control signal (4-20mADC or 1-5VDC) and power supply to achieve the pressure, flow, liquid level, temperature and other parameters adjust.

●It has the characteristics of sensitive action, simple connection, large flow, small volume and high adjustment accuracy.

● Simple structure, convenient assembly and disassembly

Technical Parameters of Valve Actuator
  Power supply   Conventional: single phase 220v, three phase 380v
  Special: three phase 400v, 415v, 660v(50Hz, 60Hz)
  Working environment   Ambient temperature: -20 ~ + 60 ℃ (special temperature environment can be customized)
  Relative humidity: 95% (at 25 ° C)
  Protection level   Outdoor type and explosion-proof type are IP55 (IP65, IP67, IP68 can be provided for special order)
  Working system   Short time 10 minutes (15-60 minutes for special order)

 

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Technical Parameter of Valve Body:

  Nominal Size   DN15-DN200   Body Material   PVC, UPV, CPVC, PVDF and PPH
  End Connection   True Union, Double Union Thread   Structure   T Port / L Port
  Operating Pressure   1.0 / 1.6 MPa (10 / 16 bar)   Voltage Tolerance   ±10%
  Suitable Media   Corrosive media, Water, Air, etc   Temperature Of Media   -5~80℃ (23℉~176℉)
  Design standard   ISO, DIN, IDF, SMS, 3A   Orifice(mm)  15, 20, 25, 32, 40, 50, 65, 80, 100

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Package & Shipping:
As a professional electric ball valve manufacturer, COVNA aims to provide our customers the best quality products with the most competitive pricing, on-time delivery and full warranty service with omprehensive service from start to finish, encompassing consultation through to after sales service, full support in every respect and ensure that you are accompanied at each stage of your project.
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Purchase Guide:

● Confirm the valve size you need. We offer this Multi-turn Actuator Globe Control Valve in 1/2in to 4in.

● Confirm the valve body material you need. We offer this Multi-turn Actuator Globe Control Valve in stainless steel material.

● Confirm the connection standard. We offer this Multi-turn Actuator Globe Control Valve in ANSI, JIS, DIN, and UK standard.

● Confirm the pressure and working temperature. Pressure and temperature are the important points and those may affect the cost.

● Confirm the voltage you need. The right voltage could help your valve operate better.

● Tell us your medium. Different medium has different features and we will help you to select the valve basic on the medium requirements

● Confirm the actuator type you need. We have on/off type, modulating type, intelligent type, explosion-proof type, IP68 type and auto return type electric valve actuator for your project.

Any requirements please tell us like core material, sealing material, or connection standard. We could help you to custom the valve you need.

More infomation, please send message to us. Quote will be provided within 2 hours! [email protected]

Technical Parameter of Actuators:

  Model   5   10   16   30   60   125   250   400
  Torque Output   50Nm   100Nm   160Nm   300Nm   600Nm   1250Nm   2500Nm   4000Nm
  90°Cycle Time   20s/60s   15s/30s/60s   15s/30s   15s/30s   30s/60s   100s   100s   100s
  Angle of Rotation   0-90°   0-90°   0-90°   0-90°   0-90°   0-90°   0-90°   0-90°
  Working Current   0.25A   0.48A   0.68A   0.8A   1.2A   2A   2A   2.7A
  Starting Current   0.25A   0.48A   0.72A   0.86A   1.38A   2.3A   2.3A   3A
  Drive Motor   10W/F   25W/F   30W/F   40W/F   90W/F   100W/F   120W/F   140W/F
  Product Weight   3kg   5kg   5.5kg   8kg   8.5kg   15kg   15.5kg   16kg
  Voltage Option   AC 110V, AC 220V, AC 380V, DC 12V, DC 24V
  Insulation Resistance   DC24V:100MΩ/250V; AC110/220V/380V: 100MΩ/500V
  Withstand Voltage   DC24V:500V; AC110/220V:1500V; AC380V:1800V 1Minute
  Protection Class   IP65
  Installation Angle   Any
  Electrical Connection   G1/2 Water-proof Gable Connectors, Electric Power Wire, Signal Wire
  Ambient Temp.   -30℃to 60℃
  Control Circuit
   A: ON/OFF type with light indicator signal feedback
  B: ON/OFF type with passive contact signal feedback
  C: ON/OFF type with resistance potentiometer signal feedback
  D: ON/OFF type with resistance potentiometer and neutral position signal feedback
  E: Regulation type with servo control module
  F: DC24V/DC12V dirct ON/OFF type
  G: AC380V three-phase power supply with passive signal feedback
  H: AC380V three-phase power supply with resistance potentiometer signal feedback
Optional Function   Over Torque protectors, dehumidify heater, stainless steel coupling & yoke
  1. Oil and Gas Industry
    • Pipeline Flow and Pressure Control: Used for flow and pressure control in natural gas and oil pipelines to ensure stability during transportation.
    • Gas and Liquid Distribution Systems: Regulates the flow of gases or liquids, ensuring precise control under various operating conditions.
    • Automation of Distribution Systems: Used in refineries and natural gas processing plants to automate fluid distribution and regulate the reaction processes.
  2. Chemical and Petrochemical Industry
    • Reactor Pressure and Flow Control: Used in chemical reactors, storage tanks, and other equipment to control pressure and flow, ensuring stability in the chemical reaction process.
    • Flow/Pressure Regulation: Regulates the flow of liquids or gases in processes such as polymerization, refining, and distillation to ensure efficient production.
    • Steam Control: Regulates the flow and pressure of steam in steam generators and distribution systems.
  3. Water and Wastewater Treatment
    • Water Flow Control: Regulates water flow and pressure in water supply and wastewater treatment systems to ensure normal operation.
    • Gas and Chemical Additions: Regulates the flow of chemicals or gases (such as chlorine or ammonia) added during the water treatment process.
  4. HVAC (Heating, Ventilation, and Air Conditioning) Systems
    • Temperature Control and Airflow Regulation: Used in air conditioning systems to regulate the flow of cooling or heating fluids to maintain the desired temperature.
    • Pressure and Airflow Regulation: Adjusts the flow and pressure of air in ventilation, air conditioning, and humidification systems to ensure indoor comfort.
  5. Food and Beverage Industry
    • Liquid Flow Control: Precisely controls the flow of liquids in processes such as brewing, dairy production, and beverage bottling.
    • Temperature and Pressure Regulation: Regulates temperature and pressure during heating, cooling, and sterilization to ensure product quality and safety.
  6. Pharmaceutical Industry
    • Precision Flow Control: Regulates the flow of liquids and gases in pharmaceutical manufacturing processes to ensure precise control of process parameters.
    • Pressure Control: Adjusts pressure in cleaning and sterilization systems to ensure stable system operation.
  7. HVAC Systems
    • Airflow and Temperature Control: Controls the flow and temperature of air to adjust environmental conditions, ensuring comfort and energy efficiency inside buildings.
  8. Steel and Metallurgical Industry
    • Gas Flow Control: Precisely adjusts the flow of gases such as oxygen and nitrogen during smelting and heating processes to ensure stable furnace temperatures and chemical reactions.
    • Cooling Fluid Flow Regulation: Regulates the flow of cooling fluids in cooling systems to ensure temperature control of equipment.
  9. Thermal and Power Industry
    • Steam and Water Flow and Pressure Control: Regulates the flow of steam and water in boiler systems, heat exchangers, and power plants to ensure efficient operation of thermal systems.
  10. Mining Industry
  • Slurry Flow Regulation: Adjusts the flow and pressure of slurry during transportation and separation processes to ensure efficient extraction and processing of minerals.
The actuator on my automated valve operates, but the valve won’t turn. Why?

Most likely the valve stem or actuator coupling is broken.

The electric actuator limit switches or the pneumatic actuator position stops are not correctly adjusted.

Probably because there is no air pressure to the solenoid or dirt has jammed it. Also, debris might be trapped inside the valve. Or, the air pressure is not sufficient to operate the actuator. Remember: measure air pressure at the actuator, not at the compressor.

Maybe. First, be sure that the actuator torque output is sufficient to turn the valve reliably. Second, you will have to fabricate a custom mounting bracket and coupling to connect the actuator to the valve.

The valve will stop somewhere between full open and close. When power is reapplied to the original circuit, the actuator will complete the cycle.

To make the change just remove the actuator from the valve and turn it, or the valve stem, 90 degrees and remount the actuator.

Remove the actuator from the valve and check the valve stem. Most ball valves have stem flats at right angles to the flow when the valve is in the off position. On butterfly valves check the stem flow arrow marking.

Remove the actuator from the valve and check the valve stem. Most ball valves have stem flats at right angles to the flow when the valve is in the off position. On butterfly valves check the stem flow arrow marking.

Check the electric wiring schematic that came with the actuator for the correct hookup. Sometimes a copy is inside the actuator cover. If it is missing, don’t guess about the connections. Call the manufacturer for a schematic.

The actuator is wired incorrectly (check the schematic accompanying the actuator), or the external control switch is not the correct type for the actuator.

Not unless you bought it with an optional speed control.

Actuators and solenoid valves require different types of electrical control switches. SPDT for actuators, SPST for solenoids. Check the actuator wiring schematic for the correct wiring and switch type.

Still have confused? Contact Us!
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