Inserting Pressure Safety Valves

PROCAD extracts dimensional data for pressure safety valves (PSV) from Farris catalogues.

You can modify PSV component data in Spec Generator to conform to another manufacturer's PSV dimensional data. Refer to the Spec Generator User Guide. Refer to Pressure Safety Valve List for available PSV types.

You can use the valve assembly tools when inserting pressure safety valves. See Inserting Valve Assemblies.

Select the correct isoplane setting before inserting pressure safety valves. The current isoplane sets only the inlet flange orientation.

To insert a Pressure Safety Valve…

1.   From the Valves tab, select PSV Valve.

The Relief Valve dialog box appears.

2.   Choose one of the following options:

If you click User Defined Valve, the Relief Valve Current Settings dialog box appears.

3.   In this dialog box, do the following:

In this…

Do this…

Inlet Size and Outlet Size scroll lists

Select the appropriate inlet and outlet sizes

Inlet Rating and Outlet Rating lists

Select the required inlet and outlet rating values

Inlet Dim. input box

Type the required inlet dimension value

Outlet Dim. input box

Type the required outlet dimension value

Orifice Desig. input box

Type the required orifice designation description

4.   Click OK.

For both spec-defined and user-defined valves, the PSV Valve Start Point dialog box appears.

5.   From the options, select a start point option.

6.   Click OK.

7.   In the drawing, click to select the insertion point.

8.   Click to select the inlet flange direction.

The PSV Outlet Flange Orientation dialog box appears.

9.   From the dialog box options, select the outlet orientation.

10. Click OK.

11. In the drawing, click to select the outlet direction.

The valve appears in the drawing.

The AutoISO Message box appears, indicating the new pipe size setting.

Ø      Notes: Use longer bolts for the inlet side. PSV inlets usually have thicker than standard flanges.

Ø      PSVs appear in the Bill of Materials.

Your Ad Here