To be used with the Lifting Bag RLB system.
 
                            - If the safety valve starts evacuating the pressure earlier than its set value due to foreign object penetration, rotate the head of the safety valve(blow off valve) counter-clockwise to let the compressed air escape.
 - If the foreign object is still in the safety valve, replace the valve.
 - If you observe damage on the surface of Lifting Bag such as cuts and punctures, don’t try to repair.
 - Don’t use damaged products.