SPX FLOW 006-U3, Инструкция по эксплуатации, Страница: 21 / 136

Waukesha Cherry-Burrell
®
Brand Universal 3 Pump Installation
02/2021 95-03103 Page 21
Inlet Side Strainers and
Traps
Inlet side strainers and traps (Figure 19, items A and B, respec-
tively) can be used to prevent foreign matter from damaging the
pump.
Select carefully to prevent cavitation caused by the restriction of
the inlet. If inlet strainers are used, they must be serviced regu-
larly to prevent clogging and flow stoppage.
CIP (Clean-In-Place)
Design
The design of the Universal 3 provides complete access of the
CIP solution to all product contact surfaces:
• The flat body profile (minimum requirement for standard CIP
installations) allows complete draining of the side-mounted
pump (see Figure 2 on page 12), and provides the CIP
solution access to the entire profiled cover gasket groove.
• Flats on the rotor hubs provide solution access to the cover
hub/shaft seal areas for difficult cleaning applications.
Guidelines
Use the following guidelines when designing and installing the
CIP system to ensure successful cleaning:
• Ensure that the velocity rate of CIP solutions is adequate to
clean the entire circuit. For most applications, a velocity of 5
ft/sec (1.5 m/s) is sufficient. For the CIP solution to achieve
the proper velocity, the pump drive must have enough speed
range and horsepower. The required inlet pressure also must
be satisfied. If the pump does not supply enough CIP solution
velocity, a separate CIP supply pump with an installed
bypass may be used. To determine the appropriate bypass
arrangement, contact SPX FLOW Application Engineering.
• Make sure that a differential pressure is created across the
pump. Differential pressure will push CIP solutions through
close-clearance areas of the pump, resulting in better
cleaning action. The high pressure side may be either the
inlet or outlet side. 30 psi (2 bar) is the minimum required
differential pressure for most applications. For difficult
cleaning applications, higher pressure or longer cleaning
cycles may be required.
• The pump must be operated during CIP to increase
turbulence and cleaning action within the pump.
• If complete draining is required, the pump must be in the side
mount position.
A. Strainer B. Magnetic Trap
Figure 19 - Inline Strainers and Traps
CAUTION
In order to avoid temperature shock after
the introduction of hot CIP fluid, stop the
pump before filling the pumphead with
hot CIP fluid. Once the hot CIP fluid has
filled the pumphead, allow up to 15 min-
utes for the pump fluid components to
thermally expand, then re-start the
pump.

NOTE: Depending on pump model, pipe
size, fluid properties, and rotor
clearance, some configurations will not
supply sufficient flow rate to achieve the
required line velocity of 5 ft/sec (1.5 m/s)
for CIP. Upon installation, check the line
velocity for each specific application. If
the velocity is not sufficient, add a
booster pump in line in order to reach the
required velocity. Contact SPX FLOW
Application Engineering for further
questions.
NOTE: Make sure to jog the rotors
during draining to ensure that all fluid
drains from the seal area.