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COVNA Wafer Type Hard Seal MOV Motor Operated Butterfly Valve

Hard seal electric butterfly valve also knows hard seal or tri eccentric electric butterfly valve. If the stem axis deviates from the disc center and the body center at the same time, and the rotation axis of the valve seat has a certain angle with the channel axis of the valve body, it is called three eccentric butterfly valve.

COVNA HK60-D-G Series butterfly valve is triple off-set design which has advantage of light weight, compact design and cost effective, low operation torque and can replace traditional gate valve, globe & ball valve in most of industries application

  • Model: HK60-D-G
  • Size Range: 2''~18''
  • Pressure Range: 1.0MPa to 2.5MPa
  • Material: Stainless Steel

Tri-eccentric Motorized Butterfly Valve

  • Three eccentric butterfly valve is widely used in metallurgy, electric power, petrochemical industry, water supply and drainage, municipal construction and other industrial pipelines with medium temperature ≤ 425 ℃
  • Double security structure: tritec design standard accords with API609, BS5155 ANSI B 16.34 、 ASME SEC VIII.
  • For regulating flow and breaking fluid. Material: cast iron, cast steel, stainless steel
  • Non-blind area design: there is almost no friction between butterfly plate and valve seat
  • Thin layer valve seat structure, Replaceable seal pair, Balanced fixed structure
  • Body seat construction, install the valve seat on the body


technical parameters of valve body

Body Valve components
Size range DN50~DN400 Sealing material PTFE
Body material Stainless Steel, Cast Iron, WCB Core material Stainless steel
End conection Wafer, Flange Stem material Stainless steel
Operating pressure 1.0, 2.5MPa Applicable media Water, oil, Gas, Liquid, steam, powder, anti-corrosive base
Structure Midline Structure/ A-type

metal seal tri eccentric electric butterfly valve

technical parameters of valve actuator

ON/OFF Type Feedback: the active contact signal, passive contact signal, resistance, 4-20mA
Regulation Type Input & Output signal: DC 4-20mA, DC 0-10V, DC 1-5V
Field operation The Field, Remote Control Switch Regulation and MODBUS, PROFIBUS Field Bus
Voltage Optional AC110-240V 380V 50/60HZ: DC12V, DC24V, Special Voltage Can be Customized
Protection Class IP65, Explosion Proof Construction Are Available: EX ll BT4


Model 05 10 16 30 60 125 250 400
Torque Output 50Nm 100Nm 160Nm 300Nm 600Nm 1250Nm 2500Nm 4000Nm

motorized actuator

● ON/OFF Type Electric Actuator: 90 degree rotation. AC/DC power supply, signal control and manual override. High torque up to 4000Nm.

● Modulating Type Electric Actuator: Adjust open/close angle from 0 to 90 degree. AC/DC power supply, signal control and manual override. High torque up to 4000Nm.

● Intelligent Type Electric Actuator: Adjust open/close angle from 0 to 90 degree. LED display screen to allow you check the open/close angle easier. AC/DC power supply, signal control and manual override. High torque up to 4000Nm.


motorized valve body

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