Unibloc-Pump UNIBLOC-PD 501, Operation & Service Manual

Page: 8 / 36

8 UNIBLOC-PD Operation & Service Manual: PD501-576
1.2.1 Limitation
The pump should be used for the duty for which it has been specified. The operating pressure,
speed and temperature limits have been selected at the time of order and MUST BE ADHERED
TO. These details are stated on the original order documentation. If not available, documenta-
tion may be obtained from your supplier by referencing the pump serial number and/or invoice
number.
1.2.2 Noise Emission
Under certain operating conditions, pumps and/or drives and/or the systems within which they
are installed can produce sound pressure levels that exceed 80dB. In such cases ear protection
should be used.
1.2.3 Marking - CE
Figure 1.3 shows the tag that is attached on the pump bearing housing. If the tag were to be
lost for any reason you can find the pumps serial number machined on the side of the bearing
housing. See figure 1.4. Always state the pump model and/or serial number when asking for
assistance.
1.2.4 Marking - Standard
Standard marking is machined on the side of pumps bearing housing. See figure 1.4 for details.
Pump size is machined on rotor housing next to the ports.
Figure 1.4
1.2 General Description
UNIBLOC-PD is a positive displacement rotary lobe pump. It may be supplied with a drive unit (figure 1.0) or without a drive
unit (figure 1.1). When supplied with a drive unit it is called UNIBLOC-PD ASSEMBLY. Figure 1.0 indicates various parts of
an assembly. UNIBLOC-PD can be supplied in 3 different series; 5000 series with stainless steel bearing housing, 4000 with
aluminum bearing housing, and 3000 series with steel bearing housing. Each model can be mounted with the inlet and outlet ports
in horizontal or vertical orientation. Port orientation should be specified when ordering.
MOTOR
REDUCER
BEARING
HOUSING
ROTOR
HOUSING
COUPLING GUARD
BASEPLATE PORT
Figure 1.1
MOTOR REDUCER
BEARING HOUSING
ROTOR HOUSING
BACKCOVER/
FLANGE ADAPTOR
PORT
PORT
DRIVE SHAFT
BEARING HOUSING
ROTOR HOUSING
FRONT COVER
Figure 1.3
Baseplate Assembly
Flange Mount Assembly
Figure 1.0