When Are Thrust Blocks Required?

Thrust blocks are only required for Vinidex PE pipes in pressure applications where the joint types do not resist longitudinal loads. For non-end-load resisting joints, thrust blocks must be provided at all changes in direction and other points of potential pull-out forces, e.g., bends, valves, tees etc.

Where are thrust blocks needed?

Thrust blocks are required where fittings are used to change the direction (i.e., at ties, elbows, wyes, caps, valves, hydrants, and reducers) of buried piping systems. The size and type of thrust blocks depend on pipe size, line pressure & temperature, type of fitting, degree of bend, and type of soil.

Why do you need thrust blocks?

Thrust blocking prevents main line from moving when the pressure load is applied. ... Thrust blocks are required where fittings are used to change the direction (i.e., at all ties, elbows, wyes, caps, valves, hydrants and reducers) of the pipeline.