Rapid Vacuum Isolation Valves offer extremely fast closing speeds to protect the vacuum system during a backpressure event caused by pump failure. Many valves do not close fast enough to prevent particles and turbulence from moving upstream and damaging the process.
|Model||Compatibility||sortOrder||rankScore||ranking||Drawings, CAD & Specs||Type||Port Size||Availability||Featured Item||Price||Brand|
|RI-VALVE Vacuum Isolation Valve, High Speed, Fast Closing||UNIVERSAL||0.0||1.0||0.0||0.0||Rapid Isolation Valve||NW16||
In most applications, there are two isolation valves in the vacuum foreline; one near the chamber exit for process isolation and one directly upstream of the pump for preventative maintenance work.
The Rapid Isolation Valve can be triggered a number of ways, including:
Power to the pump - many pumps have accessory relays which can be easily tapped.
Programmable Automation Controller (PAC) or equivalent device providing logic.
Pressure Sensors, based either on a threshold pressure or a rate-of-rise.