is also equipped with a J-Hook for proper indexing and flow orientation between the companion flanges. Both the J-Hook and alignment pins are provided on all 1" through 12" UNISERT Holders. > The UNISERT Assembly is a flat seatrupture disc holder which provides improved rupture disc sealing capabilities. It is designed to house either the MICRO X > Rupture Disc or theComposite Flat Seat Rupture Disc. These non-fragmenting designed rupture discs provide a wide choice of burst ratings from the low pressures of the Composite (FS) Rupture Disc through the higher pressures of the scored positive acting...