Ring Type Joint orifice plates are made to fit between B16.5 and B16.36 flanges. The male Ring joint of the orifice plates can come in Oval or Octagonal shape although oval is the more common of the two. RTJ orifice plate holders are generally made T-316 or T-304 stainless steel, however other materials can be available upon request. The Orifice plates come in three different styles. Integral (shown below), Snap-ring Style, and Holding-screw style. Ring Joint Orifice Plates come in the following flange ratings (click for dimensions):

• 300 - 600#
• 900#
• 1500#
• 2500#