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Cast Iron Butterfly Valve
Covna HK-Ex-D DN300 Explosion-Proof Electric Wafer Butterfly Valve Cast Iron Butterfly Valve
| US$90.00 - 700.00 | 1 Piece (MOQ) |
Port:
Shenzhen, China
Production Capacity:
10000 Piece/Pieces Per Month
Payment Terms:
T/T
COVNA Industry Automation Co.,Ltd
Guangdong, China
Last Login Date:
Jul 23, 2025
Main Products:
Pneumatic Valve, Solenoid Valve, Motorized Valve, Manual Valve, Pneumatic Cylinder, Pneumatic Control Valve, Air Source Treatment Unit, Fitting, PU Pipe, Pressure Gauge
Product Description
Company Info
Basic Info.
Model NO.
HK-EX-D
Media
Fluid
Structure
Butterfly Valve
Application
General
Withstand
1500VAC / Minlevel
Warranty
1 Year
Port Size
DN50-DN500
Temperature of Media
Medium Temperature
Degree of Protection
IP67
Pressure Rating
Pn16,150lb,J2s10K
Size Range
DN300
Customized Support
OEM
Model
HK-Ex-Q Explosion-Proof Electric Butterfly Valve
Power
Electric
Body Material
Cast Iron
Seat Material
EPDM
Trademark
COVNA
Transport Package
International Standard Packaging
Origin
Guangdong, China
Product Description
Product Description
Feature of HK-EX-D DN300 Explosion-proof Electric Wafer 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).
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).
Model | HK-EX-D DN300 Explosion-proof Electric Wafer Butterfly Valve |
Size Range | DN15-DN500 |
Voltage | DC12VDC24VDC220VAC24VAC110VAC380VAC220V |
Body | Cast iron |
Seat Tightness | PTFE |
Degree of Protection | IP67 |
Pressure Rating | PN16,150LB,J2S10K |
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 |
Electric Actuator
Valve Body
Size Range | DN15-DN500 |
Operating Pressure | 1.6MPa |
Body Material | Cast iron |
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
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.
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.
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