Technical Specifications

Masoneilan Valves ValVue ESD Instruction Manual =| 237
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4. Set PST Parameters
Table 7 gives a summary of PST settings.
Table 7 PST Settings
Setting Definition
PST Travel 20%-30%. The greater the travel range, the more accurate the
results from the PST test.
PST Min. Pressure Spr.Init+ ((Spr.Final-Spr. Init) * 0.4)
PST Maximum Time (PST Travel *2 ) / PST Speed + 20 seconds
PST Speed 2%
Dwell Time 5 seconds
Friction Low Limit 40% of static
Friction High Limit 200% of static
Breakout Limit Friction * (Spr.Init-Spr.Final) / Friction%
Droop Limit 15% of air supply
Freeze AO Disable
Freeze DO Disable