Shurjoint offers a variety of fittings with extra heavy (Sch. 80) wall thickness and "EP" cut grooves available for use with XH-70EP couplings. These fittings must be used with XH-70EP couplings in high pressure systems where the system pressure exceeds the published ratings for XH-1000 or Model 7707 couplings.
The Shurjoint Model 22EP Header Tees are specifically designed for use in oilfield production headers where the top (test) line is 2" (50 mm) and the bottom production line is 3" (80 mm) or 4" (100 mm).