Valve Basics1. The basic parameters of a valve are: nominal pressure PN, nominal diameter DN.2. The basic functions of a valve: shut off and connect the medium, adjust flow, change flow direction.3. The main connection methods for valves are: flange, thread, welding, and wafer.4. Valve pressure-temp Read More

1. What is a Review?A review originally comes from the game of Go, which means that after finishing a game, you remove the pieces and then re-set them in the same way as the previous game and explain the process again. This process is called a "review." You analyze where the moves were good, where t Read More

This yearIt embodies the hard work, sweat, and achievements of all COVNA employees.We have expanded markets, upgraded empowerment.We have driven innovation, focused on customers....At this momentOn January 12, 2020COVNA Industrial Automation Co., Ltd.Held an annual meeting of harvest and dreams.What Read More

An electric valve actuator is a mechanical device that uses electrical energy as its primary power source to drive a valve. Selecting the right electric actuator is crucial, as an incorrect choice may result in the valve failing to operate properly. The selection process should consider the followin Read More

On December 21, the 13th industrial salon held by Dongguan Ruitian mechanical and Electrical Technology Co., Ltd., Guangdong Qihua Industrial Equipment Co., Ltd., Dongguan Chuanyan automation equipment Co., Ltd., Guangdong Hengli ventilator Co., Ltd., meifute Environmental Technology (Guangdong) Co. Read More

Time flies, and in the blink of an eye, only the last month of 2019 remains. Over the past year, our company has undergone significant changes, achieving remarkable progress in both corporate strength and team building. These accomplishments would not have been possible without the hard work and ded Read More

November 28th marks the annual Thanksgiving Day and also the day when the COVNA charity team sets sail once again. This is our third journey to the mountainous areas of Guangxi.The Yalong Township Teaching Point in Dahua County, Guangxi Province currently has 86 students enrolled. Due to its locatio Read More

Pneumatic valves are actuating components that operate valves using compressed air. They have relatively fast opening and closing speeds and are commonly used for quick two-position cut-off applications, as well as for regulating flow. Since they operate primarily on air sources, they are highly pra Read More

In today's world, the tide of economic globalization has swept many enterprises along with it. With continuous trade conflicts arising, numerous businesses have felt the impact, serving as a wake-up call for us. As a developing enterprise, COVNA must adhere to the strategy of combining "bringing in Read More

For those who do not frequently use solenoid valves, the concepts of "position" and "way" can be quite confusing. However, they are actually simple to understand. "Position" refers to the working state of the solenoid valve, while "way" refers to the number of connection ports on the valve. Below is Read More

Solenoid valves are among the most widely used automated valves because they offer high efficiency, ease of use, and relatively low cost. A solenoid valve is composed of a coil and a magnetic core. When the coil is energized or de-energized, it controls the movement of the magnetic core, thereby cha Read More

On the morning of September 19, 2019, the 2019 South China Environmental Protection Product Promotion and Technology Summit and COVNA’s 13th Salon Investment Promotion Conference were grandly held at the 5th China IE Expo Guangzhou Exhibition. More than 100 representatives, experts, and leaders from Read More

The wafer butterfly valve is one of the most common types of valves in industrial pipelines. It has a compact structure and is installed by placing the butterfly valve between the flanges at both ends of the pipeline, securing it with double-end bolts that pass through the pipeline flanges and the v Read More

On August 31, all COVNA employees gathered in the second-floor conference room for the 2019 Q2 Company Conference.This meeting was different from previous ones—not only was it a quarterly summary meeting, but it was also the August Team Performance PK Award Ceremony. To enhance sales capabilities an Read More

Pneumatic valves use compressed air as their driving force. When purchasing a pneumatic valve, specifying size, type, and nominal pressure is sufficient for procurement. Pneumatic valves can control the flow of various fluids, including air, water, steam, corrosive media, slurry, oil, liquid metals, Read More