Gas springs safety devices

SV - OVER SPEED 

CHALLENGE

Certain application conditions may lead to a free or uncontrolled return of the piston rod (e.g. when the plate or stamped part is suddenly released). Overcome Vmax indicated in the catalog may involve not only premature leakage but also cause structural damage to the gas spring. The uncontrolled expansion of the piston rod causes a sudden impact of the mechanical stop of the piston rod against the cartridge, which can break the mechanical stop of the piston rod and cause the external projection of the piston rod.

SOLUTION

The Azolgas gas springs have the original design SV that consists of a safety system that prevents the external projection of the piston rod in case of free and uncontrolled return. The system  SV adds  double security protection, a mechanical stop into the piston rod and a second mechanism of controlled gas discharging. The SV solution is included in most of Azolgas gas springs, control the fully discharge of the pressure and prevents the external projection of the piston rod.

 

ADVATAGES

  • Controlled and complete discharge
  • Prevents piston rod projection
  • Extra safety
  • Fitted as standard

INFORMACJE TECHNICZNE

  1. SV safety system
  2. Mechanical stop

SP - OVER PRESSURE

CHALLENGE

Certain conditions, incidents or errors in the application may result in an overpressure in the gas cylinders.Overcome Pmax indicated in the catalog may involve not only premature leakage but also cause structural damage to the gas spring. The solid or liquid pollution is introduced into the gas springs increasing the pressure and temperature that causes gas leaks and reduce the useful life of gas springs.

SOLUTION

The Azolgas gas springs offer a security system SP that prevents overpressure above a maximum allowable limit (maximum design pressure). The  SP is an  additional security system, controlled relieving the pressure completely, and avoiding the projection of parts under pressure. The SP solution is included in most of Azolgas gas springs, is easily replaced by the user, supports to be used with all types of flanges and prevents from a wrong manipulation.

 

ADVANTAGES

  • Controlled and complete discharge
  • Prevents parts under pressure projection
  • Extra safety
  • Fitted as standard

TECHNICAL DATA

  1. Pressure higher than allowable limit
  2. Rupture disc opening
  3. Gas evacuation controlled

SS - OVER STROKE

CHALLENGE

Certain conditions, incidents or errors in the application may result in an over-stroke in the gas springs. Overcome Smax indicated in the catalog may involve premature leakages and reduce the useful life of gas springs. If, in addition exceeds S (total working stroke), and safety distance is exceeded, they may result in structural damage to gas springs.

SOLUTION

The Azolgas gas springs provide a safety system SS that prevents the risks of stroke over the designated limit.  The  SS system  adds extra security when exceeding the maximum allowed travel (total working stroke) discharging the gas spring pressure. The SS solution is  included in most of Azolgas gas springs, discharge completely the pressure in a controlled way, and avoids the projection of parts under pressure.

 

ADVANTAGES

  • Controlled and complete discharge
  • Prevents parts under pressure projection
  • Extra safety
  • Fitted as standard

TECHNICAL DATA

  1. Stroke higher than allowable limit
  2. SS safety system drive
  3. Gas evacuation controlled