The Basic-PSA Mechanical Snubber is used to prevent shock forces from causing damaging motions in piping systems. The snubber controls such motion by becoming a load carrying member between the piping and structure the instant a force sufficient to cause abnormal motion is initiated. However, for normal thermal motion, the snubber telescopes freely in either direction through its operating stroke.
The Basic-PSA Mechanical Snubber operates on the principle of limiting the acceleration of any pipe movement to a threshold level of .02 g’s. This is the maximum acceleration that the snubber will permit the piping to see. Should a disturbance attempt to accelerate the pipe in either direction, a braking force will be applied within the snubber of whatever magnitude required limiting the acceleration to a value less than .02 g’s. At the same time, thermal expansion, being a gradual movement, is not restricted.
Basic-PSA, Inc. Mechanical Snubber Model Sizes
| Model Size | Maximum Load | Stroke/Travel |
|---|---|---|
| PSA-1 | 1,500 Lbs | 4.0 “ |
| PSA-1 L | 1,487 Lbs | 8.0 “ |
| PSA-3 | 6,000 Lbs | 5.0 “ |
| PSA-3 L | 6,000 Lbs | 10.0 “ |
| PSA-10 | 15,000 Lbs | 6.0 “ |
| PSA-10 L | 14,400 Lbs | 12.0 “ |
Mechanical Snubber PSA 35, 100
Mechanical Snubber PSA 1/4 & 1/2