Pneumatic controls
Symbol Definition Symbol Definition
CAS Customer Air Supply PS370
Pressure switch (when
used)
PR1
Pressure Regulator 1—
Set to 5.5 bar (80 psi)
PV1
Pinch Valve 1—
Normally Open
PR2
Pressure Regulator 2—
Set to 2.7 bar (40 psi)
PV2
Pinch Valve 2—
Normally Open
PS227
Abrasive ADS Low—
Normally Open (Warning)
SOL351
Primary Pinch Valve
Control—Normally Open
PS219
Vessel Empty—
Normally Open (Warning)
SOL319
Air Exhaust Pinch Valve
Control—Normally Closed
MSR
Main System Relief—
Factory set to 7 bar (100
psi)
SOL311
Air Supply Valve Control—
Normally Closed
GA1 Gauge 1 EX1 Exhaust 1
GA2 Gauge 2 EX2 Exhaust 2
GA3 Gauge 3 EX3 Exhaust 3
GA4 Gauge 4 EX4 Exhaust 4
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