Check-All Valve Mfg. Co. is proud to introduce the brand new Vacuum Flange Insert (VI) for your rough to high vacuum systems, systems requiring frequent cleaning or modification, roughing and foreline plumbing, and research and teaching lab applications among others.

Check-All Valve Mfg. Co. is proud to introduce the brand new Vacuum Flange Insert (VI) for your rough to high vacuum systems, systems requiring frequent cleaning or modification, roughing and foreline plumbing, and research and teaching lab applications among others.  The VI is designed to fit between ISO/NW/KF/QF vacuum flanges designed in accordance with DIN 28403, DIN 28404, ISO 1609, and ISO 2861.  It is both a centering ring and a check valve therefore, requiring no additional space in the line.  Its size makes it extremely economical when compared to full-bodied check valves.  The VI can also be used as a low pressure relief valve under either positive or vacuum conditions by using the desired spring setting. 

Check-All is an ISO 9001 certified company that’s been manufacturing check valves for over 60 years.  Service to each customer is our priority.  If you have any question on our brand new VI series check valve or any of our check valve offerings, please feel free to call us at 515-224-2301 or visit our website at www.checkall.com to find complete product and contact information.