Covna Explosion-Proof Electric Butterfly Valve Cast Iron Wafer Type Butterfly Valve Electric Actuator Butterfly Air Check Valves

• Media: Fluid
• Structure: Butterfly Valve
• Application: General
• Seat Tightness: EPDM
• Warranty: 1 Year
• Connection Type: Wafer
• Model NO.: HK-EX-D
• Port Size: DN15-DN400
• Temperature of Media: Medium Temperature
• Pressure Rating: Pn16,150lb,JIS10K
• Degree of Protection: IP67
• Structure Type: Midline
• Size Range: DN15-DN400
• Customized Support: OEM
• Voltage: AC220V
• Model: HK-Ex-D Explosion-Proof Electric Butterfly Valve
• Power: Electric
• Body Material: Cast Iron+304 Disc+EPDM
• Trademark: COVNA
• Origin: Guangdong, China
• Production Capacity: 10000 Piece/Pieces Per Month

Product Description

Product Description

Feature of HK-EX-D Explosion-proof Electric Butterfly Valve:

Powerful functions: intelligent regulation type, proportional type, switch type and all kinds of signal output types.
Small size and light weight: the volume and weight are only equivalent to about 35% of traditional products.
Beautiful and generous: aluminum alloy die-casting shell, exquisite and smooth, and can reduce electromagnetic interference.
Reliable performance: key parts such as bearings and electrical components are imported famous brand products;
High standard protection: IP68 high standard protection grade.
Precision wear resistance: worm gear output shaft integrated special copper alloy forging, high strength and good wear
resistance.
Minimal return difference: the integrated structure avoids the gap of key connection and has high transmission accuracy;
Safety assurance: through 1500V withstand voltage test, class F insulated motor, safe and guaranteed.
Simple matching: single phase power supply, simple external circuit, 380V and DC power supply.
Easy to use: no refueling, no spot inspection, waterproof and antirust, installation at any angle.
Electronic brake function; When the actuator needs to stop running, the control module outputs a reverse signal to realize
electronic braking.
Fault function with error code; When the actuator fails, the control module display displays an error code indicating the
cause of the failure.
Various speeds: the whole process time is 3 seconds, 9 seconds, 13 seconds, 15 seconds, 30 seconds, 50 seconds, 100 seconds and 150 seconds (set before leaving the factory).

Electric Actuator

Model	HK66-EXBT6 explosion-proof electric actuator
Size Range	BT6-EX10~BT6-EX300
Voltage	DC12VDC24VDC220VAC24VAC110VAC380VAC220V
Machine weight	6KG-50KG
Degree of protection	IP67
Ambient temperature	-25 - + 60 (OTHER TEMPERATURES CAN BE CUSTOMIZED)
Rotation angle	0 - 360 ° adjustable
Withstand voltage level	1500VAC/Min
Insulation resistance	100MΩ/500VDC
Installation angle	360 ° ARBITRARY ANGLE INSTALLATION
Shell material	Aluminum alloy precision die casting
Optional functions	Over torque protection, heating dehumidifier

 

Dimension:

Valve Body

Size Range	DN50-DN300
Operating Pressure	1.6MPa
Body Material	Cast iron+304 DISC+EPDM
Sealing Material	EPDM
Pressure Rating	PN16,150LB,JIS10K
Connection Type	Wafer
Structure Type	Midline
Core Material	SS304/SS306
Stem Material	45#

Buyer Feedback

Company Profile

 

VR

Company Strengths:

COVNA-Specialized Manufacturer of High Quality Actuated Valve for 22 Years.

German imported manufacturing facilities, 100% Q.C passed before shipping, quality assured.

Extensive flow control project experience and various product solutions can beoffered.

OEM / ODM service available. Can do JIS 5K / 10K, ANSI 150lb / 300lb / 600lb / 900lb standard.

Inquiry will be replied within 8 hours.

Custom complaints handed by one stop professional service.

ISO 9001certificated, with extra certifications include CE, TUV, RoHS, SGS, BV, explosion & fire safe.

Industrial standard 1 year warranty.

Factory Strength:

Exhibition&Finished Project

Project of Motorized Valve

 

Project of Pneumatic Actuated Valve

 

Project of Solenoid Valve

 

Packaging & Delivery

FAQ

1. Which voltage of the electric actuator?
DC24V, AC24V, AC110V, AC220V
AC380V can be customized and DC12V is available for some smaller torque of actuator.

2. What is the actuation time for electric actuator?
It depends on the torque of actuator.
The detailed timing would be as the following:
·COVNA-05(50Nm)-20 seconds
·COVNA-10(100Nm)/COVNA-16(160Nm)-25 seconds
·COVNA-30(300Nm)/COVNA-60(600Nm)-60 seconds
·COVNA-125(125Nm)/COVNA-250(2500Nm)/COVNA-400(4000Nm)-100 seconds.

3. Can the actuation time be faster?
Electric actuator can be customized the quick actuation gear,
the soonest actuation time can be reach 10 seconds to open and close.

4. What type of electric actuator you provide?
ON/OFF type, Regulation type and Intelligent type.

5. What is the difference from ON/OFF type, Regulation type and Intelligent type?
1)ON/OFF type
ON/OFF type is fully open and fully closed.

2)Regulation type
1.With input/output signal:4-20mA or 0-10V;
2.Opening position of valve can be adjusted by signal;
3.Available for PLC system.

3)Intelligent type
1.With input/output signal:4-20mA or 0-10V;
2.Opening position of valve can be adjusted by signal;
3.Available for PLC system.
4.With display screen to acheieve site control.

6. Can this electric valve be resettable (normally open / closed) automatically when power is removed?
Our regular electric actuator can't be resettable automatically while power-off.
But it can go to the multiturn electric actuator model with the extra electrical storage device along,
which acheieve the valves can be automatic reset(normally closed) while power failure.

7. Have the electric actuator had the presence of limit switches (contact about the position of the cut-off device)?
Yes, there is the position indicator on the top of actuator.
The open/closed status can be checked visually.

8. Which type of protection class of this electric actuator?
IP65, IP68, Explosion proof.

9.Is there any manual override of electric valve?
Yes, every electric valve includes the manual override.
You can open/close

10. Have the electric valve had the limiting operating time?
Electric haven't had the limiting operating time.
It can be working for 99 hours continually without getting heating.