Taylor-Wharton EF-1500 - Manual (Page 22)

BT-481 REV. B
22
Regulators
The pressure building regulator may be adjusted without removal from the system. The following procedure describes
the process:
1.
Fill the container with liquid product.
2.
Open the pressure building valve and allow the container pressure to stabilize for about an hour. Note the
pressure.
3.
Loosen the lock nut on the adjusting screw on the top of the regulator. Raise the setpoint by turning the
adjusting screw clockwise; lower the setpoint by turning the screw counterclockwise. When decreasing the
setting, the pressure building valve must be closed and the container vented to a lower pressure. Repeat
step two and observe the change.
For more accurate adjustment it is recommended that the pressure building regulator be removed from the system. A
regulator bench adjustment fixture should be used. The figure below shows a typical setup.
Figure 12: Regulator bench adjustment fixture.
1.
Leak test joints between the high pressure cylinder regulator and the dump valve. Joints must be leak free
before proceeding.
2.
Close the on/off valve and the dump valve.
3.
Open the high pressure cylinder valve.
4.
Set the high pressure regulator above the desired set point for the pressure builder.
5.
Slowly open the on/off valve and observe the downstream pressure gauge.
6.
When the regulator under adjustment closes, the P.B. set point is indicated on the downstream pressure
gauge.
7.
Close the on/off valve and open the dump valve.
8.
To reset the regulator, loosen the lock nut on the adjusting screw. Raise the setpoint by turning the
adjusting screw clockwise; lower the setpoint by turning the screw counterclockwise. After adjustment,
repeat steps 5 and 6 to check the setting before reinstalling the regulator on the liquid container.
9.
When reinstalling the pressure building regulators on the system, orient the regulator so the flow arrow
points away from the pressure building valve.
Adjustment of the economizer regulator should be accomplished with the regulator removed from the system. The
regulator bench adjustment fixture shown above should be used.
High Pressure
Cylinder
Regulator
Pressure
Gauge
Regulator to
be adjusted
Dump Valve
On/Off
Valve
Pressure
Gauge