Adjusting The Pressure Regulating Controls; Adjusting The Pressure Regulating Valve; Adjusting The Pressure Switch - SPX Power Team PE55-E110 Series Operating Instructions Manual

ADJUSTING THE PRESSURE REGULATING CONTROLS

The pressure regulating valve and pressure switch are shown in Figure 6. The pressure regulating valve can
be adjusted to bypass fluid at a given pressure setting while the pump continues to run. The pressure switch
can be adjusted to stop the pump at a given pressure setting. To ensure accuracy and low pressure differential
(approx. 300 PSI [21 BAR]) throughout the pressure range (1,000 to 10,000 PSI [70 to 700 BAR] depending on
the pump model), the pressure switch should be used with the pressure regulating valve. The pressure switch
must be set at a pressure lower than the pressure regulating valve to work properly.

1. Adjusting The Pressure Regulating Valve

For easy adjustment of the pressure regulating valve, always adjust the pressure by increasing to the
desired pressure setting.
A. Loosen the locknut (B) on the pressure regulating valve, and back the adjusting screw or knob (A) out
a few turns by turning it in a counterclockwise (CCW) direction. This will decrease the setting to a lower
than desired pressure.
B. The pump must be completely connected electrically and hydraulically. Start the pump.
C. Slowly turn the adjusting screw or knob (A) in a clockwise (CW) direction. This gradually increases the
pressure setting. When the desired pressure is reached, lock the adjusting screw (A) in position by
tightening the locknut (B). Shut off the pump.
• The pressure range is from 1,000 to 10,000 PSI (70 to 700 BAR) depending on the pump model.
• The pressure switch must be set at a higher pressure than working range to prevent shut down dur-
ing adjustment.

2. Adjusting The Pressure Switch

Generally, the pressure switch should be used with the pressure regulating valve. A pressure switch can be
used alone for operating electrical devices such as motors, solenoids, relays, etc., which are located else-
where in the circuit. Refer to Figure 7.
© 2014 SPX CORPORATION
A
B
NOTE
IMPORTANT
Figure 6
16
Form No. 1000862
Rev. 0 December, 2014