Electric and pneumatic control valves are rather common in controlling valve applications. They are widely used in different fields, such as industry, chemical engineering, petrochemicals, and so on. However, their basic intentions are alike; they vary greatly in construction, working principles, advantages, and disadvantages. Very often, users get confused when they need to select the …
On June 26, 2024, Messe Munchen (Shanghai) Co., LTD., China Trade, and the China Society for Environmental Sciences organized a grand event. On this day, the 5th Chengdu IE Expo opened successfully at the China (Chengdu) West International Expo City, in collaboration with the Sichuan Circular Economy Association and other primary units such as the …
First, Busy Monday begins, customers from Yemen come to visit our company.Also, welcome two new colleaguesAs well as colleague lucky’s birthdayAnd Happy 8 years anniversary to our colleagues So , What Makes Pneumatic ball valve and electric ball valve Different? Pneumatic and electric ball valves, such as those offered by the Covna brand, have distinct …
As an industry-leading industrial safety valve manufacturer and supplier, COVNA’s safety valves prevent inadmissible overpressure in pipe systems, pressure vessels and boilers in order to avoid danger to people, plant and the environment. Safety relief valves are set to a higher pressure than the operating pressure of the system to prevent overpressure. COVNA is a …
What is the difference between a gate valve and a globe valve? Pneumatic Valves: What Are The Different Types? Here are the main types of pneumatic valves: Directional Control Valves: These valves control the direction of airflow in a pneumatic system. Common types include 2-way, 3-way, and 4-way valves. Pressure Control Valves: These regulate and …
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Feb
Feb
First of all, I wish our COVNA customers good business. After the Spring Festival, we all return to the workplace one after another. We have started our journey to work, and we will continue to promote our COVNA valve brand to the world. Choosing COVNA = choosing safety. We will continue to provide you with …
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Oct
Oct
COVNA—New environmental protection, new situation, new development The conference brought together authoritative experts in the field of domestic environmentally friendly new energy, industry elites, and representatives from industry-leading scientific research institutes and leading enterprises to discuss industrial development paths and build a win-win cooperation and exchange mechanism. In order to promote the development of the …
COVNA holiday notice： The Mid -Autumn Festival and National Day are approaching, and all the employees of Covna will deeply thank you for your long -term support and trust in us! To you the most sincere blessings and greetings!
Dear friendsWish everything good!Our group company Covna is going to hold the 16th Salon activity in October. We sincerely invite you to participate.The following is the activity information:Time: October 14, 2023Venue: Royal Marina Plaza hotel, Panyu district, Guangzhou city, Guangdong province, ChinaOrganizer: COVNA Group Co.Ltd.Objects: water treatment industry, environmental protection industry, mechanical equipment industryIf you …
The structure of the Fluorine ball valve is different from the common valves in our daily life. The switch of the valve is mainly controlled by the valve stem, and the switch operation of the valve in daily life does not rely on the valve stem. Its structure and The production process itself has many …