The Betts FT4MS Adapter connects a 4-inch TTMA flange to standard female 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-thread transition.
Technical Specs List
- Size: 4 inches
- Body Material: Steel
- Maximum Allowable Working Pressure: 75 psi (5.2 bar)
- "A" Dimension: 2.56 inches (65.0 mm)
- Flange Outer Diameter: 6.63 inches (168.4 mm)
- Flange Inner Diameter: 4.56 inches (115.8 mm)
- Bolt Holes: 8 holes, 0.44 inches (11.2 mm) diameter, on a 5.88-inch (149.4 mm) bolt circle
- Thread Type: Standard NPT
- Bolt Pattern: TTMA recommended practices














