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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
Pneumatic butterfly valve use in City water treatment system
Pneumatic butterfly valve ues in the City water treatment system
Desalination Plant
COVNA Electric Ball & Butterfly Valve Used In Desalination Plant.
Drinking Water Treatment Project With PVC Pneumatic Ball Valve
Pneumatic ball valve used in Drinking Water Treatment Project
Motorized butterfly valves are used in water purification project
Motorized butterfly valve are used in water purification project
Water Fountain
COVNA Water-Proof Brass Solenoid Valve used in Water Fountain.
Motorized valves are used in water purification projects
Motorized valves are used in water purification projects
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How to Protect Electric Actuators from Corrosion
COVNA, as a professional electric actuators manufacturer over 20 yea……
PVC/ Flanged/ Wafer/ Lug/ Sanitary/ Pneumatic Butterfly Valve
COVNA, as a pneumatic actuated butterfly valve manufacturer, we spec……
What is better about pneumatic control valves than motorized control valves?
Here we discuss the aspects of pneumatic control valves that are bet……
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sales@covnagroup.com 
+86-15622261856
