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Motorized Valves
Standard on/off control, 4-20mA or 0-10VDC modulating control is ooptional
Pneumatic Valves
Standard double acting control, 3 to 8bar input air pressure, 1 million turns tested
Control Valves
Pressure regulation, temperature control. Pneumatic and Motorized Control Valves
Solenoid Valves
Direct acting or pilot operated, various body material, leadwire or din connector
Manual Valves
Manual flange type & wafer type valve, lever handle & handwheel operation
Actuators
ISO 5211 mounting, aluminum alloy body construction, handwheel is optional
Projects
Projects
Water Treatment
Marine
General Industry
Oil Industry
Sewage treatment in the environmental protection industry
Pneumatic Butterfly Valve used in Sewage Treatment System
Irrigation system water transportation
Multi-turn Motorized Actuator Ball Valve used in Irrigation system
Urban Water Supply
COVNA Inside Screw Non-Rising Gate Valve Used in Municipal Water Sup……
Desalination Plant
COVNA Electric Ball & Butterfly Valve Used In Desalination Plant.
Petroleum
COVNA Rising Stem Gate Valve used in petroleum.
Ultrafiltration Membrane System
COVNA Automatic Valve Used in Ultrafiltration Membrane System.
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Valves Study
Difference Between Globe Valve And Regulating Valve
For those who are not familiar with these two types of valves, it is……
The 13th COVNA Valve Industrial Salon Conference of 2019
On December 21th,2019. The 13th COVNA Industrial Salon ConferenceI a……
Troubleshooting of motorized valve
In the process of installing or using electric valves, it is possibl……
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sales@covnagroup.com 
+86-15622261856
