GIS-IDs: List of associated IDs on the GIS/data-source side.
Hyperlinks: Associate one or more web link, photo, word processing document, or other file with this element.
Headloss Coefficient Setting (Initial): Set the initial headloss coefficient for the valve.
Discharge Coefficient (Initial): The discharge coefficient used at the start of a steady state or EPS run.
Relative Closure (Initial): The initial relative closure used at the start of a steady state or EPS run. (A relative closure of 0%% means the valve is 0%% closed, or 100%% open. Conversely, a relative closure of 100%% means the valve is 100%% closed, or 0%% open).
Discharge Coefficient (Transient): Discharge coefficient, Cv, is defined as: Flow / (Pressure Drop) ^ 0.5.
Operating Rule: Specifies the operation of the valve during a transient simulation.
Pattern (Valve Settings): Allows you to apply a pattern for changes to the valve's setting over time for extended period simulations. (Note that patterns override settings changes made by controls).
Pattern (Relative Closures): Allows you to apply a pattern for changes to the valve's relative closure over time for extended period simulations. (Note that patterns override settings changes made by controls).
Discharge Coefficient (Fully Open): The discharge coefficient of the valve when fully open. Used in lieu of minor loss for valves of this coefficient type.
Relative Closure (Initial Transient): The initial relative closure of the valve at the start of the transient calculation.
Valve Characteristics: Specifies the valve characteristics definition to be used for this valve. If the Valve Characteristic Curve is not defined then a default curve will be used. The default curve will have (Relative Closure, Relative Area) points of (0,1) and (1,0).
Valve Type: Choices: Butterfly, Needle, Circular Gate, Globe, Ball, User Defined
Status (Initial): Choices: Active, Inactive, Closed
Specify Local Minor Loss?: If true then the minor coefficent for the element is manually set, otherwise the value is derived from the minor loss library.
Minor Losses: List of all associated minor losses associated with the element, and can be used to generate the composite minor loss coefficient.
Diameter (Valve): Inside diameter of the valve. Used to calculate the velocity through the valve and a corresponding minor loss when a minor loss coefficient is entered.
Status (Initial, Transient): Choices: Active, Inactive, Closed
Elevation: Elevation at centroid of junctions, valves, and pumps; the ground elevation at tanks; the hydraulic grade at reservoirs.
Concentration (Initial): Specify the initial concentration for the global concentration at the selected element.
Age (Initial): Specify the initial age of the fluid at the selected element.
Installation Year: Specify the install year of the element. It does not affect the calculations.
Trace (Initial): Specify the initial trace amount at the current location.
Zone: Specify the zone for the element.
Headloss Coefficient Setting (Calculated): TCV headloss coefficient setting at the current time step.
Discharge Coefficient Setting (Calculated): TCV discharge coefficient setting at the current time step.
Relative Closure (Calculated): TCV relative closure at the current time step. (A relative closure of 0%% means the valve is 0%% closed, or 100%% open. Conversely, a relative closure of 100%% means the valve is 100%% closed, or 0%% open).
Flow: Total flow through the valve.
Velocity: Velocity of flow traveling through the valve.
Headloss: Change in head across the valve.
Pressure Loss: Change in pressure across the valve.
Hydraulic Grade (From): Calculated hydraulic grade at the entrance of the valve.
Hydraulic Grade (To): Calculated hydraulic grade at the exit of the valve.
Pressure (From): Calculated pressure at the entrance of the valve.
Pressure (To): Calculated pressure at the exit to the valve.
Flow (Absolute): Magnitude of flow through the selected valve.
Status (Calculated): Choices: Active, Inactive, Closed
Minor Loss Coefficient (Unified): Displays the current minor loss value for the element, depending on whether its derived or local.
Age (Calculated): Age at selected element for current time step.
Trace (Calculated): Trace at selected element for current time step.
Concentration (Calculated): Concentration at selected element for current time step.
Has Calculation Messages Now?: If true then the current element has associated calculation warning messages for the current time step.
Is Closed?: True if the current element is closed during the current time step.
Is Open?: Set to true if open during the current time step.
Is Initially Closed?: If true, the initial condition for the control element is "Closed" or "Off."
Controlled?: Is true if a control action in the current control set references the selected element.
Cannot Deliver Flow or Head?: If true then the cannot deliver head or cannot deliver flow warning was generated for the element for the current time step.
Head (Maximum, Transient): Maximum head at node over the course of the transient simulation.
Head (Minimum, Transient): Minimum head at node over the course of the transient simulation.
Pressure (Maximum, Transient): Maximum pressure at node over the course of the transient simulation.
Pressure (Minimum, Transient): Minimum pressure at node over the course of the transient simulation.
Air Volume (Maximum, Transient): Maximum air volume at node over the course of the transient simulation. Not applicable to Reservoirs and Rating curves.
Vapor Volume (Maximum, Transient): Maximum vapor volume at node over the course of the transient simulation. Not applicable to Reservoirs and Rating curves.
