What is a hydraulic snubber?

What is a mechanical snubber?

A mechanical snubber is a device that permits pipe deflection under normal operating conditions, but when subjected to an impulse load, such as an earthquake, waterhammer, etc., the snubber becomes activated and acts as a rigid restraint to restrict pipe movement as a result of the unwanted impulse loading.

A mechanical snubber uses gears and springs to produce the restraint force when activated.

Mechanical Snubbers for a Refinery
Mechanical Snubbers

How do I use a snubber?

The main criteria to remember when utilizing snubbers is that they are intended to be passive elements during normal operation and will become activated only when that unwanted impulse event is present. When that impulse event dissipates, the snubber will become deactivated and thus produce negligible restraint to pipe deflections under standard operating conditions.

Mechanical Snubber Installed in the Field
Mechanical Snubber Installed in the Field