Drop bar-actuated safety firing head

Used in oilfield TCP operation to impact and detonate the percussion detonator or other non-electric detonators to detonate guns

Drop bar-actuated safety firing head is a kind of debris proof firing head is designed to fire TCP guns. There is a safety pistion which could separate the boosting channel from detonating wave when the hydrostatic is less 3MPa(all-fire).
Electric currents, natural or man-made cannot detonate the drop bar-actuated safety firing head. The drop bar-actuated safety firing head ideal for light mud and little deviated well.