VRG CONTROLS LLC. 54 of 60 JUNE 2021
P2
P1
FLOW
P1
P2
Control Valve w/
Spring Diaphragm Actuator
(Spring Closed)
OPEN
SENSING
LESS DEADBAND MORE
MORE SENSITIVITY LESS
ADJUSTABLE ORIFICE (CLOSE)
ADJUSTABLE ORIFICE (OPEN)
OUT
S
EX
SENSITIVITY-DEADBAND
ADJUSTMENT
+
SUPPLY
OUTPUT ISOLATION VALVE
Model VPC-SA-BV-ID
EX
S
OPEN
OUT
SUPPLY
CLOSE
SETPOINT ADJUSTMENT SCREW
CW - Increase Setpoint
CCW - Decrease Setpoint
SENSING
No. VPC Actuator Actuator Mode Accessory Discharge
17 VPC-SA-BV (REV) Spring Diaphragm Spring Closed -
QUICK EXHAUST
ATM
VPC Port ID
Other Port ID
Gage Label
Adjustment Tag Line
TEXT
TEXT
TEXT
SCHEMATIC LEGEND
EX
QUICK
EXHAUST
EXHAUST