How the DuraSeal™ Works

ONE > Fully opened the port allows passage of the product while protecting the slip seal elastomer.
TWO > After quarter turn, both slips are positioned in the flow to begin seating mode.
THREE > In the closed position the elliptical seats are firmly seated into the stainless steel valve body creating a primary and secondary fire safe seal.
FOUR > At this point double block and bleed can be safely and easily performed.

ONE >