Check Valve Vacuum Manufacture

SJ Check Valve Vacuum​ Is a vacuum check valve designed to comply with ISO/NW/KF/QF vacuum flanges, designed in compliance with DIN 28403, DIN 28404, ISO 1609 and ISO 2861. It is both a center ring and a check valve. Designs with the following structure require additional space. This valve is very economical in size compared to body valves.
By using the required spring settings, SJ vacuum check valves can also actuate low pressure safety valves under normal or vacuum conditions.

 

              Understand the basic functions of vacuum check valves

 

Vacuum check valves are small devices that play an important role in systems ranging from automotive to industrial. Its main function is to regulate the flow of air or liquid so that it flows in only one direction while preventing it from flowing in the opposite direction.In a typical vacuum check valve, there are two ports - the inlet and the outlet. The inlet is connected to the system that generates the vacuum, while the outlet is connected to the equipment that requires the vacuum. When the pressure inside the system drops, the valve opens, allowing vacuum fluid to pass through and creating suction. Once the pressure returns to normal, the valve closes again, preventing vacuum leaks. This prevents damage to the system and helps ensure that the system operates efficiently.