The Betts FH3MS Adapter connects a 3-inch TTMA flange to a half coupler with standard NPT threads. Its bolt pattern follows TTMA recommended practices, and the steel construction is rated for a maximum allowable working pressure of 75 psi (5.2 bar). This adapter is built for tank trailer piping connections requiring a flange-to-coupler transition.
Technical Specs List
- Size: 3 inches
- Body Material: Steel
- Maximum Allowable Working Pressure: 75 psi (5.2 bar)
- "A" Dimension: 1.75 inches (44.5 mm)
- Flange Outer Diameter: 5.63 inches (114.3 mm)
- Flange Inner Diameter: 3.56 inches (90.4 mm)
- Bolt Holes: 8 holes, 0.44 inches (11.2 mm) diameter, on a 4.88-inch (124.0 mm) bolt circle
- Thread Type: Standard NPT
- Bolt Pattern: TTMA recommended practices














