PRValve#

module wntr.network.elements

class PRValve[source]#

Bases: Valve

Pressure reducing valve class, inherited from Valve.

Constructor

This class is intended to be instantiated through the add_valve method. Direct creation through the constructor is highly discouraged.

Parameters:

name (string) – Name of the pump
start_node_name (string) – Name of the start node
end_node_name (string) – Name of the end node
wn (WaterNetworkModel) – The water network model this valve will belong to.

Attributes

`name`	The link name (read-only)
`link_type`	returns `"Valve"`
`start_node`	The start node object.
`start_node_name`	The name of the start node (read only)
`end_node`	The end node object.
`end_node_name`	The name of the end node (read only)
`initial_status`	The initial status (Opened, Closed, Active) of the Link
`initial_setting`	The initial setting for the link (if Active)
`valve_type`	returns `"PRV"`
`tag`	A tag or label for this link
`vertices`	A list of curve points, in the direction of start node to end node.

Result attributes

`flow`	(read-only) current simulated flow through the link
`velocity`	(read-only) current simulated velocity through the link
`headloss`	(read-only) current simulated headloss
`quality`	(read-only) current simulated average link quality
`status`	(abstract) current status of the link
`setting`	(read-only) current simulated setting of the link

__init__(name, start_node_name, end_node_name, wn)[source]#

to_dict()#: Dictionary representation of the link

to_ref()#

property end_node#

The end node object.

Type:: Node

property end_node_name#

The name of the end node (read only)

Type:: str

property flow#

(read-only) current simulated flow through the link

Type:: float

property headloss#

(read-only) current simulated headloss

Type:: float

property initial_setting#

The initial setting for the link (if Active)

Type:: float

property initial_status#

The initial status (Opened, Closed, Active) of the Link

Type:: LinkStatus

property link_type#: returns "Valve"

property name#

The link name (read-only)

Type:: str

property quality#

(read-only) current simulated average link quality

Type:: float

property setting#

(read-only) current simulated setting of the link

Type:: float

property start_node#

The start node object.

Type:: Node

property start_node_name#

The name of the start node (read only)

Type:: str

property status#

(abstract) current status of the link

Type:: LinkStatus

property tag#

A tag or label for this link

Type:: str

property valve_type#: returns "PRV"

property velocity#

(read-only) current simulated velocity through the link

Type:: float

property vertices#

A list of curve points, in the direction of start node to end node.

The vertices should be listed as a list of (x,y) tuples when setting.