Hydraulic Check Valve

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The Hydraulic Check Valve is a symbol for a check valve (non-return valve) in a hydraulic diagram. It is found in the Automation - OpenBridge section of the Perspective Component Palette as Hydraulic Check Valve (Experimental).

Note: This component is experimental: its properties may change in a later version.

A check valve has no positions to select and no state to show, so the symbol is static: it has no readout, no alert frame and no badges, and it looks the same whatever the state of the system is. Place it on a line in a coordinate container, next to the other hydraulic symbols.

A Hydraulic Check Valve dropped from the palette with default properties looks like the image above.

Orientation

Set vertical to true for a check valve in a vertical line. The symbol is rotated 90° counter-clockwise.

vertical = false (default)	vertical = true

Properties

Name	Description	Property Type
vertical	Rotate the symbol 90° counter-clockwise, for a vertical line. Default false.	value

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Size and Placement

The symbol has a fixed size and is centred in the component’s box. Resizing the component does not resize the symbol. The blue frame in the images is the component’s box, as the Designer shows it when the component is selected:

Default box, 48 × 48	Larger box

componentSize sets the size of the symbol, in the same steps as the automation buttons:

regular	medium	large

The colours follow the OpenBridge palette of the session:

Properties

Name	Description	Property Type
componentSize	Size of the symbol: regular, medium or large. Default regular.	value
style	Standard Perspective style object.	object

Component Events

The Hydraulic Check Valve has no component events of its own. The standard Perspective events, such as onClick, are available in the component’s event configuration.

Examples

Example 1 — Check Valve in a Vertical Return Line

1. Drop a Hydraulic Check Valve into a coordinate container, on the return line.
2. Set vertical to true.
3. Keep the box at 48 × 48 and place its centre on the line: the symbol is centred in the box, so the line passes through the middle of the symbol.