Why Choose COVNA?

Exquisite craftsmanship

Stick to the spirit of ingenuity CNC precision machining 20 years of technical engineer guidance

Technological innovation

High-tech foundation Insist on innovation and development Senior technical talent team

Special custom

Torque up to 4678nm Senior technical guide selection Special customization according to customer needs

Consistent quality

ISO9001 international certification Adhere to standardized production processes 1 million cycles durability test

We Have The Best Solutions for Your Business

COVNA Industrial Automation Co., Ltd. was established in 2000, an automated valve specialist. Headquartered in Dongguan China, with 3 production bases located in Ningbo, Wenzhou and Dongguan. 

We Provide Electric Valve,Solenoid Valve,Pneumatic Valve,Electric Gate Valve,Electric Butterfly Valve,Pneumatic Control Valve,Motorized Valve,Pneumatic Knife Gate Valve,Control Valve Pneumatic,Pneumatic Actuated Valve,Motorized Operated Valve,Electric Ball Valve,Electric Actuated Ball Valve,Ball Valve,Gate Valve,Gate Valve,Butterfly Valve,Globe Valve,etc, You can browse related products and initiate consultations on our website.

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What users say about COVNA

The workmanship is in place, and the quality is very good at a glance!

Leo

Regular customers, the cooperation has been very happy!

Worlds

The workmanship is fine, the size is right, the design is in place, and the service is attentive and attentive!

Kepler

Do you have any questions?

What are the different globe valve components?

Globe valves have a very distinct globe shape. The disk, valve stem, and the hand wheel are the moving parts in the valve body. The body is available in three different designs depending on the application as well as three different types of disks.

How does a T pattern globe valve work?

The medium inlet and outlet flow path of the T Pattern Globe valve are 180° in the same direction. This design has low coefficient of flow and pressure drop. It relies on the valve stem to navigate the valve disc towards the sealing surface of the valve seat, fully shut off the flow.

The difference between globe valve and on-off valve

The globe valve is a kind of throttle valve. The throttle valve is a general term for a large type of valve that can adjust the opening arbitrarily, and the butterfly valve is also a common throttle valve. On-off valve is a general term for valves that can only be opened and closed, represented by ball valves. It is another major type of valve corresponding to throttle valves.

Why Choose COVNA Valves?

<p>All COVNA globe valves are 100% in-house produced, including mold opening, casting, production, testing and more. At the same time, all products are produced in strict accordance with ISO9001:2015 standards to ensure that the quality of the products is excellent.</p>

Our updates and blog posts

23 Dec

globe-valve | Where the butterfly valve is applicable

{keyword},Butterfly valves are suitable for flow regulation. Since the pressure loss of the butterfly valve in the pipeline is relatively large, it is about three times that of the gate valve.

23 Dec

globe-valve | How to choose electric butterfly valve

{keyword}.The disc of the butterfly valve is that the disc has a shaft rotating on the position of the valve seat. The angle of the rotation determines the opening and closing degree of the valve.

08 Jan

globe-valve | Gate valve movement

{keyword},Most gate valves are forcibly sealed, that is, when the valve is closed, the gate must be forced against the valve seat by external force to ensure the tightness of the sealing surface.

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