English
Created on 02.11

Advantages and disadvantages of V-port ball valve and double-seated control valve

The double-seated control valve has two seats (upper and lower), so it has a small unbalanced force. It is suitable for applications with a large pressure difference and low leakage requirements. For double-seated control valves of the same diameter, the actuator size requirements can also be smaller. However, the double-seated control valve has a complex flow path, high flow resistance, and a small control range; the stem moves up and down, which reduces the stability of the plug and increases vibration.
The V-port ball valve has significant advantages over a straight-through two-seat control valve, which is determined by its design. The spool of the V-port ball valve has an eccentric design: apart from the closed position, the spool and seat do not contact each other in other positions, which reduces wear. As soon as the spool opens, it moves away from the seat, reducing the operating torque. At the same time, the unique V-shaped opening in the spool excellently provides the valve's control characteristics at small openings, solving the problem of poor operating characteristics of straight-through valves at small openings.
The V-port ball valve has a simple flow path (single straight-through), low flow resistance, and a large adjustable range. The pressure recovery coefficient of the "flow-opening" type valve is higher than that of a double-seated valve, making it more suitable for conditions where cavitation occurs.
The movement of the spool and stem of the V-port ball valve is rotational, allowing it to withstand a larger pressure difference compared to linear motion valves – 2.5 to 10 times greater.
When addressing high-temperature issues, the V-port ball valve uses an elastic rigid seal that combines stiffness and flexibility to solve the problem of spool and seat jamming due to thermal expansion at high temperatures. Simultaneously, a high-temperature wear-resistant packing seal is applied to ensure the reliability of stem sealing at high temperatures.
**You may also be interested in:**
**Method of Designating Types of Electric Actuated Control Valves:** Feedback of the electric actuated control valve: the motor operates, through a gear transmission, a three-terminal sliding rheostat outputs a valve positioning signal, and there are also three-wire limit signals. Product models can be manufactured according to individual user requirements. Currently, the products are popular in many industries, and their performance is constantly improving due to technological innovations. However, the price of the products may vary due to technological and other reasons. When purchasing, you should not randomly choose a manufacturer; comparison is necessary to select a product that is right for you.
How to install an electric regulating valve?
The temperature sensor can be installed in any position, but its entire length must be immersed in the controlled medium. An electric regulating valve typically includes an actuator that receives drive signals (0-10V or 4-20mA) to control valve regulation. Additionally, depending on control needs, an intelligent network control system can be configured to optimize control and enable remote monitoring.

Мы стремимся к совершенству во всем, что мы делаем, и надеемся на сотрудничество с вами!

Вопросы или консультации

Контактная информация

Заполните форму и мы свяжемся с вами через несколько часов.

+86(532)86934934

dave@starrykran.ru

办公室808, No.489 Changjiang Middle Road,Huangdao District(Former Development Zone), Qingdao City, Shandong Province,China

Можешь позвонить мне по-русски

+86 15153265653

Цитируйте нас сейчас

Мы являемся ведущим производителем клапанов из нержавеющей стали в китае.Если вы ищете продукты или услуги, связанные с клапанами из нержавеющей стали, точной литья, точной полировки и точной обработки чпу, пожалуйста, не стесняйтесь обращаться к нам в любое время.Свяжитесь с нами в любое время, чтобы получить дополнительные решения для вашего проекта.

Спросите мгновенную цитату
LOGO方案.jpg

Если вы ищете профессионального производителя клапанов из нержавеющей стали, Starry будет вашим лучшим выбором.Мы предлагаем лучшие клапаны из нержавеющей стали оптом и лучшие решения, чтобы помочь вашим инженерным проектам.Свяжитесь с нами в любое время.

Kонтакты

Товары для дома

info@starrykran.ru

+86-15153265653

Офис 808, No.489 Changjiang Middle Road,Huangdao District(Former Development Zone), Qingdao City, Shandong Province,China
Механическая полировка
Клапан для пищевых продуктов

Ультра-низкотемпературный клапан

Кованые стальные клапаны
Точная кастинг Silica sol