Hydraulic Shock and Sway Suppressors (Snubbers)
Standard model
- Housing parts coated with extremely corrosion-resistant zinc-iron coating 10 - 15 µm.
- piston rods coated all round with 40 µm electroless nickel and the shaft additionally coated with 20 µm of hard chrome.
Special model
- Housing parts of 1.4301 stainless steel and additionally galvanised with 15 µm nickel coating.
- piston rods are made of chloride-resistant stainless steel with a 10 µm hard chrome coating on the shaft.
Further material combinations and special coatings are available at the customer's request.
Application
The hydraulic shock- and sway suppressors are used to prevent damage to appliances, pipework, pressure vessels, valves and pumps which might otherwise be caused by dynamic forces applied suddenly. These include dynamic loading occurring during operation (water hammer, pipe bursts or shocks caused by safety-valves blowing off), and on the other hand by external influences (earthquakes, explosions and wind loads). In addition, the PSS snubbers can be used as oscillation-dampers for oscillating pipework and plant components, provided the amplitude exceeds 0.5 mm.
By using the snubbers the dynamic displacement is reduced to a minimum. Movements caused by temperature alteration are not obstructed by the snubbers.
