UNIBLOC-PD Operation & Service Manual: PD600-677 5
1.2 General Description
UNIBLOC-PD
is a positive displacement rotary lobe pump. It may be supplied with a drive unit (fig. 1.1) or without a
drive unit (fig. 1.2). When supplied with a drive unit it is called
UNIBLOC-PD
assembly. Fig. 1.1 indicates various parts
of an assembly. UNIBLOC-PD Models 600-677 can be supplied in 2 different series; 5000 series with stainless steel
bearing housing or 3000 series with painted steel bearing housing. Each model can be mounted with the inlet and
outlet ports in horizontal or vertical orientation. The orientation can be modified using either a foot for horizontal port
orientation or a pedestal for vertical port orientation (fig 1.3). Port orientation should be specified when ordering.
1.2.1 Limitation
The pump is designed to operate in both directions without modifications (see fig. 1.4)
and 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,
documentation may be obtained from your supplier by referencing the pump serial number and/or invoice number.
PRODUCT
FLOW
PRODUCT
FLOW
PRODUCT
FLOW
PRODUCT
FLOW
fig. 1.4
Vertical Porting
PEDISTAL
Horizontal Porting
FOOT
fig. 1.3
DRIVE SHAFT
FRONT COVER
MOTOR
REDUCER
COUPLING GUARD
BEARING HOUSING
ROTOR HOUSING
BASEPLATE
PORT
BEARING HOUSING
ROTOR HOUSING
PORT
fig. 1.1
fig. 1.2