Systems, methods, and apparatuses for mechanically securing a check valve in an open position during maintenance and testing operations. For example, there is a system including: a set rod having a first end and a second end, and a curved portion, in which the first end of the set rod is to be placed against a clapper inside the check valve; a first connecting nipple having a first end to thread into a ball drip outlet of the check valve and a second end to receive a rod locking component; the rod locking component having at least: (i) a first end to attach with the second end of the first connecting nipple, (ii) a second end, and (iii) a lock mechanism positioned in a center portion of the rod locking component to positionally fix the set rod in its position while placed against the clapper inside of the check valve; in which the first end of the set rod is to be positioned against the clapper inside the check valve, in which the set rod is fixed in its position by the lock mechanism of the rod locking component, and in which the set rod traverses through the ball drip outlet of the check valve into the first connecting nipple, through the first connecting nipple into the rod locking component, and egresses through the second end of the rod locking component. Other related embodiments are disclosed.

Systems, methods, and apparatuses for mechanically securing a check valve in an open position during maintenance and testing operations. For example, there is a system including: a set rod having a first end and a second end, and a curved portion, in which the first end of the set rod is to be placed against a clapper inside the check valve; a first connecting nipple having a first end to thread into a ball drip outlet of the check valve and a second end to receive a rod locking component; the rod locking component having at least: (i) a first end to attach with the second end of the first connecting nipple, (ii) a second end, and (iii) a lock mechanism positioned in a center portion of the rod locking component to positionally fix the set rod in its position while placed against the clapper inside of the check valve; in which the first end of the set rod is to be positioned against the clapper inside the check valve, in which the set rod is fixed in its position by the lock mechanism of the rod locking component, and in which the set rod traverses through the ball drip outlet of the check valve into the first connecting nipple, through the first connecting nipple into the rod locking component, and egresses through the second end of the rod locking component. Other related embodiments are disclosed.

Fire protection sprinkler assemblies and methods thereof having thermally responsive glass bulb trigger arrangements for suppression mode fast response fire protection in which the glass bulb trigger arrangements provide a consistent thermal response.

Fire protection sprinkler assemblies and methods thereof having thermally responsive glass bulb trigger arrangements for suppression mode fast response fire protection in which the glass bulb trigger arrangements provide a consistent thermal response.

A fire extinguishing system valve (1), in particular wet alarm valve, dry alarm valve or spray water valve, having a housing (3) which has a fluid inlet chamber (9), a fluid outlet chamber (11) and a closing body (13) which can move back and forth between a blocking state and a release state, wherein the fluid inlet chamber (9) and the fluid outlet chamber (11) communicate directly with one another in a fluid-conducting manner in the release state, and the closing body (13) prevents the direct communication between the fluid inlet chamber (9) and the fluid outlet chamber (11) in the blocking state. The housing (3) has a dedicated discharge duct (30) which has at least one inlet (30a, b) connected to the fluid outlet chamber (11) and an outlet (30c) leading out of the housing (3) of the fire extinguishing system valve (1), and which is integrated into the housing (3).

A fire extinguishing system valve (1), in particular wet alarm valve, dry alarm valve or spray water valve, having a housing (3) which has a fluid inlet chamber (9), a fluid outlet chamber (11) and a closing body (13) which can move back and forth between a blocking state and a release state, wherein the fluid inlet chamber (9) and the fluid outlet chamber (11) communicate directly with one another in a fluid-conducting manner in the release state, and the closing body (13) prevents the direct communication between the fluid inlet chamber (9) and the fluid outlet chamber (11) in the blocking state. The housing (3) has a dedicated discharge duct (30) which has at least one inlet (30a, b) connected to the fluid outlet chamber (11) and an outlet (30c) leading out of the housing (3) of the fire extinguishing system valve (1), and which is integrated into the housing (3).

A receiver for a fire suppression system includes a receiving portion configured to receive and couple with a corresponding portion of a cartridge. The receiver includes a translatable member configured to engage a corresponding portion of the cartridge and translate in response to insertion of the cartridge. The receiver includes a switch configured to transition between a first state and a second state in response to translation of the translatable member to indicate whether the cartridge is inserted into the receiving portion.

A receiver for a fire suppression system includes a receiving portion configured to receive and couple with a corresponding portion of a cartridge. The receiver includes a translatable member configured to engage a corresponding portion of the cartridge and translate in response to insertion of the cartridge. The receiver includes a switch configured to transition between a first state and a second state in response to translation of the translatable member to indicate whether the cartridge is inserted into the receiving portion.

An inspection system for an HVAC device includes an HVAC duct section, a damper positioned with the duct section, an actuator for selectively moving the damper to a closed position, and a verification camera for recording the position of the damper with a date stamp and a time stamp. The actuator is further configured to move the damper to its open position, and the verification camera is further configured to record the open position of the damper with a second date and time stamp.

An inspection system for an HVAC device includes an HVAC duct section, a damper positioned with the duct section, an actuator for selectively moving the damper to a closed position, and a verification camera for recording the position of the damper with a date stamp and a time stamp. The actuator is further configured to move the damper to its open position, and the verification camera is further configured to record the open position of the damper with a second date and time stamp.