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6. Product introduction
6.1 Product description
Hydro Multi-B is a range of factory-assembled pump systems,
ready for installation and operation.
As standard, the booster systems consist of two and three pumps
connected in parallel and mounted on a common base frame with
a control cabinet and all necessary fittings.
Fig. 5
Front view of Hydro Multi-B booster system with three
CM(E) pumps
9
Fig. 6
Rear view of Hydro Multi-B booster system with three
CM(E) pumps
Pos.
Description
1
Control cabinet
2
Inlet manifold
3
Outlet manifold
4
Diaphragm tank (not included)
5
Isolating valve
6
Non-return valve
7
Pump
8
Base frame
9
Pressure transmitter and pressure gauge
10
Pressure switch or inlet pressure sensor
Oval flange (CME 3-10)
11
Intermediate adapter (CME 15-25)
12
Screw cap or blanking flange
6.2 Applications
The booster systems are suitable for the following application
types:
•
constant-pressure boosting
•
tank filling.
6.2.1 Booster system for constant-pressure applications
The booster system for constant-pressure applications is
designed to maintain a constant pressure on the outlet side of the
pumps. The booster systems for constant-pressure applications
adjust the performance according to the demand and keep a
constant pressure in the following ways:
•
by cutting the required number of pumps in and out
•
through continuous adjustment of the speed of the running
pumps.
Operating principle
The user enters the required pressure of the system (setpoint) via
the user interface of the CU 323 control unit. CU 323 adjusts the
system performance according to the feedback received from the
pressure transmitter installed in the outlet manifold.
Two to three electronically speed-controlled pumps
12
One speed-controlled pump in operation.
11
Three speed-controlled pumps in operation.
Quantity
1
1
1
1
•
Control variant E for constant-pressure applications
2 per pump
maintains a constant pressure through continuous
1 per pump
adjustment of the speed of the pumps.
2-4
•
The system performance is adjusted to the demand by
cutting the required number of pumps in and out and
1
through parallel control of the pumps in operation.
1
1
2 per pump
1 per pump
2
Control variant E
PT
H
Hset
H
Hset
Q
Q
7
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