Which technique is needed to use a sprinkler wedge to stop an activated sprinkler?

Using a sprinkler wedge effectively to stop an activated sprinkler requires a careful approach to ensure that water flow is stopped without causing additional damage. The correct technique involves inserting two wedges from opposite sides between the orifice (the water outlet) and the deflector (the part that distributes water). This method creates a pressure seal that effectively blocks the water flow.

When wedges are inserted from opposite sides, they can exert equal pressure against the orifice and the deflector, forming a tight sealing mechanism that halts the water discharge. This technique is specifically designed to close the gap and prevent the water from escaping the sprinkler system.

This approach is essential because it minimizes the risk of dislodging a single wedge, which could potentially lead to ineffective sealing or even cause water to spray unintentionally. Properly utilizing two wedges increases the effectiveness of the seal and considerably reduces the likelihood of leaks.

Understanding the mechanics behind this technique enhances fire safety knowledge, especially in situations where quick action is needed to control a water flow caused by an activated sprinkler head during firefighting efforts.