Orifice Full-Face Flanges

SOF Series Orifice Full-Face Flanges

Standard Class 150 (150 lb.) Full-Face Flanges

Base Part Number: As shown here, the BASE PART NUMBER defines the Series (three characters), the material (one character), the nominal size, the thickness TH, and the side tap size ST. Use a decimal number to indicate the nominal size. For thicknesses up to 6”, replace the TH with the decimal thickness. For thickness over 6”, contact factory. Then replace ST in the part number with the side tap size in decimals. Note that the Class (or lb.) designation does not imply a pressure rating.
For example, a 3/4” Class 150 PTFE Orifice Full-Face Flange x 1” thick with a 1/4” side tap would be SOFT-0.75-1-0.25

Click here for minimum thickness required for various NPT tap thread sizes.

Options

Class 300 (300 lb.) Spacers: For Class 300 spacers, add to the Base Part Number the suffix 300. For other classes, contact the factory. For example, a 2” Class 300 PTFE Orifice Full-Face Flange x 1-1/2” thick with a 1/2” side tap would be SOFT-2-1.5-0.5-300

Click here to view the Sizes of Class 150 and 300 Spacers and Flanges.