• - Quality -

    We manufacture each valve according to international directives, making COVNA becoming synonym of quality


We have the best sloution for your business

The quality and reliability of products determine whether a company can sustain. Therefore, improving the quality of products and friendly experience for customers are always the pursuit of COVNA.


Tested Actuator Housing

Actuator housings will do housing hardness testing to make sure it withstands a certain pressure range without leakage. Actuators will be ensured for safety usage.


The Safety of Electric Actuators

The protection class of COVNA standard electric actuators is IP65, and IP68 or explosion-proof electric actuators are also optional, with manual override and self-locking to prevent reverse rotation.


Inspection before Shipment

According to the policies of COVNA, all goods must be 100% tested before shipment, such as: visual test, voltage test, leakage test, and actuator debugging, etc., to ensure that the product meets your requirements.


Pneumatic Actuators With 1 Million Times Of Life Cycle Test

Both single-acting and double-acting pneumatic actuators have passed the test of 1 million times of life cycle. After 1 million times tested, the springs, 0-rings and other parts remain intact.


Quality Inspection in the Process of Electric Actuators

Our electric actuators are processed by CNC machine and equipped with imported motors with tests like torque test, gear running-in test, capacitance test, motor parameter debugging after assembly to make sure they are functional.


In Compliance With ISO9001 Quality Control System

All COVNA products strictly follow the ISO9001:2008 quality control system during production and inspection,with improved work efficiency and lowered defective rate.

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