COVNA Products

Cast Steel WCB Flange Electric Gate Valve

A  Electric Gate Valve, also known as a sluice valve, is a valve that opens by lifting a barrier (gate) out of the path of the fluid. Gate valves require very little space along the pipe axis and hardly restrict the flow of fluid when the gate is fully opened.

  • Model: HK60-Z-Z
  • Size Range: 2” to 16”
  • Pressure Range: ASME CL, 150, 300, 600, 900, 1500, 2500
  • Material: Stainless Steel, WCB

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COVNA Cast Steel  WCB Flange Electric Gate Valve

● Simple structure, easy to manufacture and maintain
● Small working stroke and short opening and closing time
● Good sealing performance, small friction between sealing surfaces and long life
● In the process of opening and closing, the friction of the sealing surface is smaller than that of the gate valve, which is wear-resistant
● usually only one sealing surface, good manufacturing process, easy to maintain
● Electric actuator is easy to operateDesign & Manufacture: KS B2361Construction Length: KS B2361
● Flange Dimension: KS B2361
● Pressure Test: KS B2361
● After the test, remove stagnant water, suburban viscera, anti-rust treatment

Technical Parameters of Valve Body

Valve Body Valve components
Nominal size DN50-DN400 Sealing material PTFE, EPDM
Body Material Stainless Steel Disc Material Stainless Steel
End Connection Flange Ends & Butt welding Ends Stem Material Carbon iron
Operating Pressure ASME CL, 150, 300, 600, 900, 1500, 2500 Applicable media Water, Air, Gas, Petroleum, Oil, Liquid
  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 motorized PVC ball valve in 1/2in to 4in.

● Confirm the valve body material you need. We offer this motorized PVC ball valve in UPVC, CPVC, PPH and PVDF material.

● Confirm the connection standard. We offer this motorized PVC ball 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! inquiry@covna-china.com

Technical Parameter of Actuators:
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  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
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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