A valve controller device for controlling a set of one or more solenoid valves is provided. The valve controller comprises an accelerometer for making acceleration measurements in three directions comprising acceleration measurements in a vertical direction. The valve controller comprises a processing unit that determines the arrival of seismic P-waves when the ratio of vibrations' power in the vertical direction with respect to a sum of the vibrations' power in the three directions exceeds a first threshold. The processing unit then determines the arrival of seismic S-waves when the vector sum of the vibrations' power in the three directions exceeds a second threshold. The processing unit then determines the arrival of seismic surface waves when the vector sum of the vibrations' power in the three directions exceeds a third threshold. The processing unit then sends one or more signals to close the set of solenoid valves.

One or more techniques and/or systems are disclosed that can provide for a portable monitor control. A movement detection triggering system can be disposed between a fluid inlet and the body of the portable monitor, and may be able to restrict or reduce fluid flow when the monitor is moved from its desired position. A trigger arm can be coupled with the inlet, and, when the inlet is pivoted away from a set position, the trigger arm is also moved, which triggers another portion of the control system. A trigger pin is released, which may allow a lever to rotate, allowing a restrictor component to move into place in the fluid flow path, thereby restricting fluid flow.

A hydrant includes: a hydrant body defining a hydrant inner cavity, the hydrant configured to couple to and be in fluid communication with a fluid distribution system including a fluid therein under pressure; and a break check valve coupled to the hydrant body, the valve including: a valve body defining a valve inner cavity, the hydrant inner cavity defining a valve bore in fluid communication with the fluid during normal operation of the hydrant; a valve member configured to rotate from an open position to a closed position of the valve; and an arm in contact with the hydrant and configured to prevent movement of the valve member when the hydrant is coupled to the valve, the valve defining a hole separate from the valve bore and in fluid communication with each of the hydrant inner cavity and the valve inner cavity.

Various aspects of the invention are directed to a triggering device for a quickly triggering extinguishing system for explosion suppression. In some embodiments of the present disclosure, the triggering device may include a pawl body having a pawl flank, a catch, at least one electromagnet to transmit an electromagnetic field, and a sliding pin. The sliding pin triggers an extinguishing system for explosion suppression by movement from a blocking position into a release position. In the blocking position, the sliding pin is pushed against the pawl flank of the pawl body by means of the catch and is held in the blocking position by said pawl flank. The pawl body releases the engagement of the catch and the pawl flank, and thereby releases the sliding pin, in response to the at least one electromagnet exerting the electromagnetic field on the pawl body.

A break-away check valve is disclosed. The check valve may be configured between two passageways and may regulate the flow of liquid between the passageways. The check valve may include an actuation assembly that may actuate the check valve upon the system becoming dislodged or otherwise dislocated from at least one of the passageways.

This disclosure is directed to a traditional gate valve whereby the parts are retrofitted to enable the gate valve to stop the flow of water in an earthquake. This device utilizes a weight and springs to trigger a response which closes the gate valve.

A hydrant valve assembly including a valve body including an exit end, a lip extending radially outward from the exit end, a valve seat and a first valve member selectively movable between a first orientation whereby the first valve member is not engaged with the valve seat and a second orientation whereby the first valve member is engaged with the valve seat. An annular retaining plate is supported on the exit end of the valve body and includes a first rod extending downwardly into the valve body, the first rod being arranged to selectively maintain the first valve member in the first orientation. A flange is detachably engaged with and concentrically arranged around the lip, and a barrel is supported on the retaining plate. A plurality of connectors extends through the barrel, the retaining plate and the flange for rigidly coupling the barrel to the retaining plate and flange.

A passive explosion isolation valve (10) is provided that comprises vertically-oriented gate members (40, 42) configured to close automatically in response to an energetic event occurring downstream of the valve. The valve (10) may be optionally equipped with a valve seat cleaning assembly (46) configured to removed accumulated particulate material away from the area of the valve seat (48) and/or one or more latch assemblies (44) configured to secure the gate members (40, 42) in the closed position following closure of the valve (10) in response to an energetic event.

A hydrant valve assembly including a valve body including an exit end, a lip extending radially outward from the exit end, a valve seat and a first valve member selectively movable between a first orientation whereby the first valve member is not engaged with the valve seat and a second orientation whereby the first valve member is engaged with the valve seat. An annular retaining plate is supported on the exit end of the valve body and includes a first rod extending downwardly into the valve body, the first rod being arranged to selectively maintain the first valve member in the first orientation. A flange is detachably engaged with and concentrically arranged around the lip, and a barrel is supported on the retaining plate. A plurality of connectors extends through the barrel, the retaining plate and the flange for rigidly coupling the barrel to the retaining plate and flange.

A retrofit valve shutoff device is provided that comprises a coupling key for coupling with an actuator of a shutoff valve on a fluid supply line, an inertial measurement unit for generating one or more signals in response to arrival of seismic waves, a motor for rotating the coupling key and the actuator of the shutoff valve, and a processing unit for receiving the one or more signals from the inertial measurement unit, analyzing the received signals to determine whether to close the shutoff valve, and sending a signal to the motor to rotate the coupling key and the actuator of the shutoff valve to close the shutoff valve based on the analysis of the received signals.