The PC* pressure regulator keeps the pressure at a constant set level in
the circuit, thus adjusting automatically the pump flow rate according to the
real need of the system.
The desired pressure can be set by manually adjusting the P regulation
valve. The clockwise rotation of the adjustment bolt makes the pressure
increase.
FEATURES OF THE PC REGULATOR:
- pressure adjustment range:
PC5 = 30 ÷ 210 bar (for VPPL 008, 016, 022, 036 and 046)
pressure increase/adjustment screw round: 69 bar
PC6 = 30 ÷ 280 bar (for VPPL 070 and 100)
pressure increase/adjustment screw round: 78 bar
4 - REGULATORS
4.1 - Pressure regulator: PC*
4.2 - Remote-controlled pressure regulator: PCR
FEATURES OF THE REGULATOR:
- remote-adjustment pressure = 20 ÷ 210 bar
- flow rate available on the X port
for the remote-control = about 1,5 l/min (approx.)
4.3 - Pressure and flow rate regulator: PQC
This regulator, in addition to the pressure adjustment (as for the
PC* model), allows the pump flow rate control, according to the ∆p
pressure drop measured on either side of a throttle valve installed
on the user line.
Note: The connection pipe between the X port and the flow line
downstream the restrictor (or valve) must always be made
(customer charge).
FEATURES OF THE PQC REGULATOR:
- pressure adjustment range:
11 ÷ 190 bar (for VPPL 008, 016, 022, 036 and 046)
13 ÷ 230 bar (for VPPL 070 and 100)
- pressure increase/adjustment screw round: 78 bar
- differential pressure adjustment range = 15
÷ 28 bar
- minimum delivery pressure = 15 bar
4.2.1 - Remote-controlled pressure regulator: PCR
for VPPL 008, 016, 022, 036 e 046
4.2.2 - Remote-controlled pressure regulator: PCR
for VPPL 070 e 100
The PCR regulator allows a remote-control of the device via a remote control connected to the X port (typical application for submerged
pumps).
In case a pressure regulating valve is used for the remote-control, it is suggested to use a direct operated valve with a size suitable to 1,5 l/min
pilot flow rate.
Note: The maximum length of the connection between the valve and X port of the pump must not be longer than 2 m.
FEATURES OF THE REGULATOR:
It also limits the line maximum pressure.
- pressure regulating range 30
÷ 280 bar
- pressure increase/adjustment screw round: 78 bar
- remote-regulated pressure range = 20 ÷ 280 bar
- flow rate available on the X port for the remote-control = about 1,5 l/min