Thrust Block

Written by Matt Milbury on . Posted in Pipe Fittings

A thrust block, abbreviated as TB, is an obstacle for the pressure against a change in direction of a pipe by a elbow, etc. The soil or substance must be capable of maintaining the thrust force. The thrust pressure comes from internal pressure in the line acting on fittings.

Formula

\(A_{TB} = \frac { F } { p  }   \)  

Where:

\(A_{TB}\) = area of thrust block

\(F\) = thrust force

\(p\) = allowable soil bearing pressure

Solve for:

\(F =  A_{TB} \cdot p  \)

\(p = \frac { F } { A_{TB}  }   \)

Thrust Bloc Drawings

Isometric Drawing of a thrust block

Isometric Drawing of a thrust block

Isometric Drawing of a thrust block