The quick exhaust valve is very sensitive and designed to open the exhaust through the pressure difference across the diaphragm. The latest valves are made of lightweight materials and can be easily supported by the system piping. These quick release valve fittings are equipped with an oil resistant film. In addition, high quality valves differ from ordinary low quality valve fittings, ensuring considerable operation. These valves provide fast reset and cylinder rotation and offer a variety of migration options for efficient systems.
The pneumatic industry requires a large number of valves and accessories. From the pneumatic check valve to the flow regulator. In some applications, different components must work together.KP-LOK instrument tubing valves and fitings. The quick exhaust valve (QEV) is designed to increase the speed of circulation of the cylinder through a pneumatic system. Installing a pneumatic QEV at the end of the cylinder rod or at the blind end of the cylinder causes sudden extension or retraction. It depends on your needs
The important function of QEV
QEV is used for some applications. These designs provide the ideal compatibility for pneumatic systems as follows.
- Possibility to allow a quick return of the cylinder.
- Several migration options are available.
- Select the cylinder through the external thread.
- Anodizing and Plated to resist corrosion.
- Rotating cylinder connection allows for important alignment.
Quick Exhaust Valves industrial application
Rapid evacuation/ retraction
In a double-acting cylinder that requires rapid retraction, the air is released by the QEV and the QEV is tightly connected to the end of the cylinder head. QEV is usually larger than the four-way valve. Therefore, an increase in cylinder speed can be achieved by using a smaller and less expensive control valve.
Dual Pressure Actuation
In this circuit, QEV and three-way control valves are involved. These valves can quickly expand the cylinder under high pressure conditions. Shrinkage can be achieved at lower temperatures to save air and extend cylinder life. The pressure of the pipe must be at least 3 to 4 times the final pressure of the rod. This pressure difference between the rod and the end of the plug allows an effective operating pressure.
The greatest control is achieved with this circuit with a minimum number of valves. The QEV is a controller responsible for the rapid retraction of the cylinder without the use of a four-way valve. On the other hand, a speed control valve is used to control the retraction of the second cylinder and the extension of these cylinders. Our company has efficient stainless steel QEV, they are very durable and can meet the highest standards of the pneumatic industry, you can find enough QEV stainless steel in our production lines.