Swiss VAT vacuum valve 25.7- High pressure quick closing valve

The main requirement for modern shut-off valves is to provide reliable and rapid emergency isolation response to any backflow event. The 25.7 high vacuum quick cut-off valve is designed to provide sensitive high-speed isolation function, reliably preventing backflow into the process chamber or pipe
The risk of the road system.

The 25.7 high vacuum quick cut-off valve is controlled by flow rate. The direct operation design of no subsystem (sensors and drivers) can provide high-speed isolation function, and the complexity and fault risk are relatively low. At a pressure difference of 1 bar, from the beginning
The time required from the initial reflux pulse to isolation is less than 10 milliseconds, so the 25.7 high vacuum rapid cut-off valve is in a position among similar products.

As a shut-off valve, it should ideally not add flow obstruction to the system. The special flow optimization design of the 25.7 high vacuum fast cut-off valve sets the standard in this regard, achieving a balance between high flow conductivity and fast isolation.

When used in processes with by-products in the airflow (such as front-end pipeline applications), any pollutants accumulated on the quick shut-off valve will reduce flow conductivity and can have a negative impact on its isolation ability. The 25.7 high vacuum quick cut-off valve prevents this situation by using a special surface coating. This coating can significantly reduce the accumulation of pollutants from most by-products. Additional heating options can be used to prevent process gases from condensing on the valve surface.

25.7 high vacuum quick cut-off valve can provide DN 50-
The size is 160 mm (2 '-6'). The valve body is made of stainless steel
make. The standard flange is ISO-K, suitable for valves from DN 63 to DN 160 (2 half '-6'), and the standard flange ISO-KF is suitable for valves from DN 50 (2 ').

For applications involving corrosive process gases, full
Fluororubber seals.