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True Union/ Thread/ Flanged/ Tri-clamp Electric Ball Valves
Blog, Valves Study,

True Union/ Thread/ Flanged/ Tri-clamp Electric Ball Valves

COVNA is professional electric ball valve manufacturer over 2o years. Offer different type electric ball valve, electric butterfly valve, pneumatic actuated ball valve, pneumatic actuated butterfly valve. For maximum versatility, our ball valves and actuators come in different sizes, materials and connection options. They also offer a range of different functions and features to suit each specific application. With […]

Nov.11.2020
COVNA Electric Actuator Gate Valves Features
Blog, Valves Study,

COVNA Electric Actuator Gate Valves Features

The electric actuator gate valve is a kind of gate valve. The driving method of the electric gate valve is electric actuator. These valves use an electric motor to operate the gate valve and control the flow of media. Connection types are flange type, welded type and clip type. Electric gate valves structure features: ①The […]

Nov.10.2020
Operation Principle of Electric Ball Valve in Equipment and Industrial Pipelines
Blog, Valves Study,

Operation Principle of Electric Ball Valve in Equipment and Industrial Pipelines

Whta is the  electric ball valve operation principle? The electric actuator ball valve is generally connected with the valve through an electric actuator, and becomes an electric ball valve after installation and debugging. Electric ball valve uses electric energy as power and drives the valve through an electric actuator to switch and adjust the action […]

Nov.06.2020
PVC/ Flanged/ Wafer/ Lug/ Sanitary/ Electric Butterfly Valve
Blog, Valves Study,

PVC/ Flanged/ Wafer/ Lug/ Sanitary/ Electric Butterfly Valve

COVNA offers a comprehensive range of control valves and actuators for virtually every application: central and decentralized heating systems, domestic hot-water systems, district heating and steam. For maximum versatility, our control valves and actuators come in different sizes, materials and connection options. They also offer a range of different functions and features to suit each specific […]

Nov.05.2020
Advantages and Specifications of Pneumatic Ball Valve
Blog, Valves Study,

Advantages and Specifications of Pneumatic Ball Valve

Advantages of pneumatic ball valve: Pneumatic ball valve is composed of double (single) acting pneumatic piston actuator and floating ball valve. Learning the advantages and specifications of pneumatic ball valves will help us to better choose pneumatic ball valves. COVNA high pressure pneumatic actuated ball valve has the characteristics of compact structure, small size, reliable […]

Nov.04.2020
What Does a Electric Butterfly Valve Do?
Blog, Valves Study,

What Does a Electric Butterfly Valve Do?

What is Electric Butterfly Valve? The butterfly valve is a rotary valve in which a disk-shaped seating element is rotated 90° to open or close the flow passage So The Electric butterfly valve belongs to a variety of electric valve and electric modulating valve. Electric butterfly valve connection ends mainly include: flange type and wafer type; electric butterfly valve […]

Nov.03.2020

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