Fully opened the port allows passage of the product while protecting the slip seal elastomer.
After quarter turn, both slips are positioned in the flow to begin seating mode.
In the closed position the elliptical seats are firmly seated into the stainless steel valve body creating a primary and secondary fire safe seal.
At this point double block and bleed can be safely and easily performed.
©2008 • DuraSeal is a registered trademark of Franklin Valve L.P.