Preaction sprinkler valve assemblies, related dry sprinkler devices and fire protection sprinkler systems

A dry sprinkler device comprising:

• a first valve selected from the group consisting of poppet valves and clapper valves, the first valve having a body with an inlet at least one outlet and a fluid passageway connecting the inlet with each outlet, a seal member supportable across the passageway to close the passageway by a pivotally mounted lever, the seal member being supported across the passageway in a sealing position by a latch releasably engaged with the lever;
• an first activation component including a base, a movable member movable with respect to the base, a bias member located with respect to the base to bias the movable member from a preactivation position with respect to the base to an activated position with respect to the base, and a thermally responsive element retaining the movable member in the preactivation position only until a predetermined thermodynamic condition is reached, the thermally responsive element being configured to lose structural integrity at the predetermined thermodynamic condition;
• a first flexible connector including at least a flexible hollow outer cable housing having a first end configured to be stationarily connected with the body of the valve and a second end configured to be stationarily connected with the base, and a flexible cable located inside the flexible hollow outer cable housing and sized for only sliding movement within the outer cable housing, the flexible cable having a first end mechanically connected with the latch for movement of the latch with respect to the lever by movement of the first end of the flexible cable and a second end engaged with the movable member to move with the movable member;
• at least one water distribution device fluidly coupled with the at least one outlet;
• a second activation component including a base, a movable member movable with respect to the base, a bias member located with respect to the base to bias the movable member from a preactivation position with respect to the base to an activated position with respect to the base, and a thermally responsive element retaining the movable member in the preactivation position only until a predetermined thermodynamic condition is reached, the thermally responsive element being configured to lose structural integrity under the predetermined thermodynamic condition;
• a second flexible connector including at least a flexible hollow outer cable housing having a first end configured to be stationarily connected with the body and a second bend configured to be stationarily connected with the base, and a flexible cable located inside the flexible hollow outer cable housing and sized for only sliding movement within the outer cable housing, the flexible cable having a first end and a second end fixedly connected with the movable member of the second activation component so as to be moved with respect to the flexible hollow outer cable housing by movement of the movable member with loss of structural integrity by the thermally responsive element of the second activation component under the predetermined thermodynamic condition, the first end being mechanically connected with the latch for movement of the latch with respect to the lever by movement of the first end of the flexible cable, the first end being connected with the latch through one of a plunger and a crank.