ANSI stainless steel 316 orifice flange
Quick Detail：
Design standard: ANSI B16.36
material: Stainless steel 316
Nominal diameter: 4”
Pressure: 300LBS
Pressure Tapping’s: two ½” NPT tapings are provided in each flange,
one with a plug
Gaskets: 3.2 mm thick spiral wound type, carbon steel
outer, stainless steel inner, 316L windings with graphite filler
Stud bolts and Nuts: ASTM A320 B8 and ASTM A194 Gr 8
Product Range:
Available Material: ASTM A105N Carbon Steel, ASTM A350 LF2 Carbon Steel
ASTM A182 F316L Stainless Steel
Pressure Ratings from 300 lb to 2500 lb
The function of the orifice flange is to measure the rate of the flow of the commodity through the piping system. Orifice flanges are easy to recognize because they have a hole drilled through the face of the flange perpendicular to the pipe. They also have an additional set of bolts called jack screws. These screws are used to help separate the flanges so inspection and/or replacement of the orifice plate can be performed. The orifice flange is a single component of the orifice flange union assembly. The orifice flange union is composed of two orifice flanges, an orifice plate, bolts, nuts, jack screws, and two gaskets.
