To do a Grayloc design:
- Go to the Grayloc Equipment Details page.
- Scroll to the Grayloc Design section.
- Click Edit.
In the Design section – specify the design input:
- Tightening Step 1
- Clamp Size - used to determine Torque. See Appendix B: Grayloc Calculations.
- Stud Size - auto filled with default value. See Appendix B: Grayloc Calculations.
- Wrench Size - auto filled with default value. See Appendix B: Grayloc Calculations.
- Tightening Step 2
- Hub Size - auto filled with default value, which is equal to the Clamp Size.
- IMS determines minimum Torque (this is the 150% Torque). See Appendix B: Grayloc Calculations.
- Click the arrow < to apply the calculated Torque value, or
- Input another value. Note: A warnings is given if this is below the calculated value.
- Also 50% Torque, 100% Torque, and 200% Torque is calculated.
- Seal Ring size (dropdown) – This does not influence the Torque calculation but is needed to determine the Stand Off Range. See Appendix B: Grayloc Calculations.
Note: Predefined Default values can be changed.
- Recommended Specs– Flange management recommendations:
- Stud Grade (dropdown)
- Nut Material (dropdown)
- Clamp material (dropdown)
- Shrouded ("yes"/"no")
- Hub Material (dropdown)
- Seal ring material (dropdown)
- Bolt Quantity
- Hub Thickness
- Seal Angle
- Seal length
- Non-Erosion Ring (dropdown)
- Heat Trace LOTO – Lock Out Tag Out
- Bolting Tool
- Drawing
- Pipe Schedule
- Click Save when done.
IMS determines the Specs (e.g. Stand Off Range, Tolerance, Reading over ¼ Ball, Seal Ring Range, HC, and Torque Values) from the above defined values. See Appendix B: Grayloc Calculations.
Grayloc specs are determined based on design data.