HSA.RET – DAMPING DIRECTION AT RETRACTING PISTON ROD

RELIABLE ENERGY ABSORBING WITH TWO OR THREE ADJUSTABLE DAMPING STAGE

MAIN TECHNICAL CHARACTERISTICS:

Hydraulic system to download required damping energy for reliable closure of the check valve.

The piston rod is under compression load, buckling and the closing damping energy of the check valve, therefore it’s being transferred on the full piston area of the shock absorber.

The piston rod is completely in extracted position when the check valve is open, which in fact means all the time when the pump is working. At pump stops or power failure the damping process is started by retracting the piston rod of shock absorber.

All sizes and versions of this type of shock absorbers are fitted with a spring for force adjustment in order to start as quickly as possible in the check valve closing direction.

Hydraulic shock absorber system is primary designed for damping when the check valves are closing and if necessary they can be equipped with damping of the last 10 % stroke at opening.

Robust, compact and clean design of external surfaces with usage of quality materials, which allows application in the most demanding work environments, including “outdoor” applications.

Mounting in any position and under any inclination on the pipeline.

System design allows for long lasting life of the product with easy and quick replacement of all parts.

On request, the piston rod can be made from stainless steel and additional rubber bellow protection for the hardest working conditions.

Technical characteristics can be aligned with customer requests.

Hydraulic shock absorber type HSA.RET with Damping direction at extracting piston rod.