9 in Hg, Temp..Range -20 Degrees to 300 Degrees F Rupture Disc, Burst Pressure 125 psig, Fits Pipe Size 4 in, Diameter 6 3/4 in, Thickness 7/8 in, Body Material Graphite, Vacuum Pressure 29.
9 in Hg, Temp..Range -20 Degrees to 300 Degrees F Rupture Disc, Burst Pressure 20 psig, Fits Pipe Size 4 in, Diameter 6 3/4 in, Thickness 7/8 in, Body Material Graphite, Vacuum Pressure 29.
9 in Hg, Temp.Range -20 Degrees to 300 Degrees F Rupture Disc, Burst Pressure 50 psig, Fits Pipe Size 4 in, Diameter 6 3/4 in, Thickness 7/8 in, Body Material Graphite, Vacuum Pressure 29.