There are many brands of solenoid valves. In this answer, I recommend the brand of solenoid valve imported from the United States: Cohen KNKE, for the following reasons:
1, internal leakage and external leakage are easy to control.
Ke en ke KNKE import solenoid valve
Solenoid valves are different from other types of automatic control valves. The automatic control valve extends the valve stem, and the work and action of the valve core are controlled by electric, hydraulic and pneumatic actuators, which is prone to external leakage. For the solenoid valve, the electromagnetic force is used as the source power to push the valve core to complete the work, and the valve core of the solenoid valve is sealed in the isolation sleeve to avoid the external leakage of the valve.
2. The solenoid valve system is simple and easy to connect with the computer of the control system.
3. The solenoid valve has a simple structure and is more convenient to install, use and maintain.
4. The price of solenoid valve products is lower than other valve products.
The above is the answer to this question from Kornco KNKE, an American manufacturer of imported solenoid valves. If you need to buy solenoid valves, please go to KNKE official website, Cohenko, or ask professional technicians from KNKE Cohenko to find the most suitable products for you.