TapFlo LPX Series User manual

Pump models:
25-1
25-2
40-1
40-2
50-1
50-2
80-1
100-1
Sanitary Positive
Displacement Pump
Tapflo LPX series
IOM manual
2023 | 1
Read this instruction manual carefully,
before you install and operate the pump

CONTENTS
apflo LPX series 2
1. S FETY ................................................................................................................................................ 5
2. REPL CEMENT L BELS...................................................................................................................... 7
2.1. pplication Instructions ............................................................................................................ 7
3. C RE OF ST INLESS STEEL................................................................................................................ 8
3.1. Care of stainless steel ................................................................................................................ 8
3.2. Elastomer seal replacement following passivation ................................................................. 8
4. INTRODUCTION ................................................................................................................................. 9
4.1. Pump model designation .......................................................................................................... 9
4.2. Intended use ............................................................................................................................. 11
4.3. Pump receiving ........................................................................................................................ 11
4.4. Pump characteristics................................................................................................................ 11
4.5. Equipment serial number ........................................................................................................ 11
4.6. Pump shaft location................................................................................................................. 12
4.7. Pump dimensions..................................................................................................................... 13
4.7.1. Mounting dimensions...................................................................................................... 13
4.7.2. Technical data................................................................................................................... 13
4.7.3. Sound level ....................................................................................................................... 14
4.7.4. Maximum particle size..................................................................................................... 14
5. INST LL TION ................................................................................................................................. 15
5.1. Install pump and drive unit..................................................................................................... 15
5.2. Install connections and piping................................................................................................ 16
5.2.1. Piping support.................................................................................................................. 16
5.2.2. Expansion joints ............................................................................................................... 16
5.2.3. Inlet piping ....................................................................................................................... 16
5.3. Install check valves .................................................................................................................. 17
5.3.1. Inlet side on lift applications........................................................................................... 17
5.3.2. Discharge side .................................................................................................................. 17
5.4. Install isolation valves ............................................................................................................. 18
5.5. Install relief valves ................................................................................................................... 18
5.6. Install side strainers and traps ................................................................................................ 18
5.7. Install pressure gauges ............................................................................................................ 19
5.8. Seal flush connections ............................................................................................................. 19
5.9. CIP (Clean-In-Place) guidelines............................................................................................... 20
5.10. Check coupling alignment................................................................................................... 20
5.11. Check angular alignment..................................................................................................... 21

CONTENTS
apflo LPX series 3
5.12. Check parallel alignment..................................................................................................... 21
5.13. Check belt and chain alignment ......................................................................................... 21
5.14. Check pump rotation ........................................................................................................... 22
6. OPER TION ...................................................................................................................................... 23
6.1. Pre-startup checklist................................................................................................................ 23
6.2. Startup procedure.................................................................................................................... 23
6.3. Shutdown procedure ............................................................................................................... 24
6.4. Emergency shutdown procedure............................................................................................ 24
7. M INTEN NCE ................................................................................................................................ 25
7.1. Important safety information ................................................................................................. 25
7.2. Lubrication................................................................................................................................ 25
7.2.1. Drive lubrication .............................................................................................................. 25
7.2.2. Gear oil.............................................................................................................................. 25
7.2.3. Bearing lubrication .......................................................................................................... 26
7.3. Maintenance inspections......................................................................................................... 26
7.3.1. Inspection of shaft ........................................................................................................... 27
7.3.2. Inspection of hub end...................................................................................................... 27
7.3.3. Inspection of shaft shoulder ........................................................................................... 27
7.3.4. Inspection of gears and bearings ................................................................................... 27
7.3.5. Recommended maintenance schedule........................................................................... 28
7.4. Maintenance inspection chart................................................................................................. 29
7.5. Cleaning .................................................................................................................................... 29
7.6. Pump disassembly – hydraulic components.......................................................................... 30
7.6.1. Pump cover removal........................................................................................................ 30
7.6.2. Rotor removal .................................................................................................................. 31
7.6.3. Rotor blocking.................................................................................................................. 31
7.6.4. Pump body removal ........................................................................................................ 33
7.6.5. Mechanical seal removal ................................................................................................. 33
7.7. Gearbox disassembly ............................................................................................................... 34
7.7.1. Gear cover removal .......................................................................................................... 35
7.7.2. Gear cover removal .......................................................................................................... 35
7.7.3. Bearing removal ............................................................................................................... 37
7.8. Pump assembly ........................................................................................................................ 37
7.8.1. Install front seals.............................................................................................................. 38
7.8.2. Bearing assembly ............................................................................................................. 38
7.8.3. Bearing adjustment.......................................................................................................... 40

CONTENTS
apflo LPX series 4
7.8.4. Shaft seal installation ...................................................................................................... 42
7.8.5. Mechanical seal guidelines/notes................................................................................... 43
7.8.6. Body installation .............................................................................................................. 43
7.8.7. Rotor positioning ............................................................................................................. 44
7.8.8. Rotor installation ............................................................................................................. 44
7.8.9. Setting rotor clearance .................................................................................................... 46
7.8.10. Gear mounting and rotor synchronization .................................................................... 48
7.8.11. Verify rotor clearance ...................................................................................................... 50
7.8.12. Gear cover installation..................................................................................................... 51
7.8.13. Cover installation ............................................................................................................. 52
8. TROUBLESHOOTING ........................................................................................................................ 54
9. P RTS LISTS ..................................................................................................................................... 57
9.1. Model 25-1 to 50-1 Pump Parts (- - exploded view) .......................................................... 57
9.2. Model 25-1 to 50-1 Pump Parts (- - BOM Items) ................................................................ 58
9.3. Model 25-1 to 50-1 Pump Parts (-B- exploded view)........................................................... 59
9.4. Model 25-1 to 50-1 Pump Parts (-B- BOM Items) ................................................................ 60
9.5. Model 50-2 to 100-1 Pump Parts (- - exploded view) ........................................................ 61
9.6. Model 50-2 to 100-1 Pump Parts (- - BOM Items) .............................................................. 62
9.7. Model 50-2 to 100-1 Pump Parts (-B- exploded view)......................................................... 63
9.8. Model 50-2 to 100-1 Pump Parts (-B- BOM Items) .............................................................. 64
9.9. Maintenance kits...................................................................................................................... 65
10. W RR NTY .............................................................................................................................. 66
10.1. Warranty form...................................................................................................................... 66
10.2. Returning parts .................................................................................................................... 67
10.3. Warranty ............................................................................................................................... 67

1. SAFETY
apflo LPX series 5
1. S FETY
RE D ND UNDERST ND THIS M NU L
PRIOR TO INST LLING, OPER TING OR SERVICING THIS EQUIPMENT
We recommend users of our equipment and designs follow the latest Industrial Safety
Standards. At a minimum, these should include the industrial safety requirements established
by:
1. Occupational Safety and Health Administration (OSHA), itle 29 of the CFR. Section
1910.212- General Requirements for all Machines
2. National Fire Protection Association, ANSI/NFPA 79. ANSI/NFPA 79- Electrical Standards
for Industrial Machinery
3. National Electrical Code, ANSI/NFPA 70 ANSI/NFPA 70- National Electrical Code
ANSI/NFPA 70E- Electrical Safety Requirement for Employee Workplaces
4. American National Standards Institute, Section B11
ATTENTION! Servicing energized industrial equipment can be hazardous. Severe injury
or death can result from electrical shock, burn, or unintended actuation of controlled
equipment. Recommended practice is to disconnect and lockout industrial equipment
from power sources, and release stored energy, if present. Refer to the National Fire
Protection ssociation Standard No. NFP 70E, Part II and (as applicable) OSH rules
for Control of Hazardous Energy Sources (Lockout-Tagout) and OSH Electrical Safety
Related Work Practices, including procedural requirements for:
Lockout-tagout
Personnel qualifications and training requirements
When it is not feasible to de-energize and lockout-tagout electrical circuits and
equipment before working on or near exposed circuit parts
Locking and Interlocking Devices: hese devices should be checked for proper working
condition and capability of performing their intended functions. Make replacements only with
the original manufacturer’s renewal parts or kits. Adjust or repair in accordance with the
manufacturer’s instructions.
Periodic Inspection: Industrial equipment should be inspected periodically. Inspection
intervals should be based on environmental and operating conditions and adjusted as
indicated by experience. At a minimum, an initial inspection within 3 to 4 months after
installation is recommended. Inspection of the electrical control systems should meet the
recommendations as specified in the National Electrical Manufacturers Association (NEMA)
Standard No. ICS 1.3, Preventative Maintenance of Industrial Control and Systems Equipment,
for the general guidelines for setting-up a periodic maintenance program.
Replacement Equipment: Use only replacement parts and devices recommended by the
manufacturer to maintain the integrity of the equipment. Make sure the parts are properly
matched to the equipment series, model, serial number, and revision level of the equipment.

1. SAFETY
apflo LPX series 6
Warnings and cautions are provided in this manual to help avoid serious injury and/or
possible damage to equipment:
ATTENTION! marked with a stop sign.
Immediate hazards which WILL result in severe personal injury or death.
WARNING! marked with a warning triangle.
Hazards or unsafe practices which COULD result in severe personal injury or death.
CAUTION! marked with a warning triangle.
Hazards or unsafe practices which COULD result in minor personal injury or product or
property damage.

2. REPLACEMENT LABELS
apflo LPX series 7
2. REPL CEMENT L BELS
WARNING! The following labels are installed on your equipment. If these labels are
removed or become unreadable, refer to “Parts Lists” in chapter 9: “Parts Lists” for
replacement part numbers.
2.1. pplication Instructions
Apply to a clean, dry surface. Remove the backing from the label, place it in proper position,
protect it with a cover sheet and burnish it. (A soft rubber roller also may be used to press the
label into place). Apply all labels to be readable from the front of the pump.
Fig. 1: Label locations
Label Definition
Entanglement hazard
Replace plug with breather plug

3. CARE OF STAINLESS STEEL
apflo LPX series 8
3. C RE OF ST INLESS STEEL
NOTE! Tapflo recommends the use of an FD -approved anti-seize compound on all
threaded connections.
3.1. Care of stainless steel
Corrosion resistance is greatest when a layer of oxide film is formed on the surface of stainless
steel. If film is disturbed or destroyed, stainless steel becomes much less resistant to corrosion
and may rust, pit or crack.
Corrosion pitting, rusting and stress cracks may occur due to chemical attack. Use only
cleaning chemicals specified by a reputable chemical manufacturer for use with 300 series
stainless steel. Do not use excessive concentrations, temperatures or exposure times. Avoid
contact with highly corrosive acids such as hydrofluoric, hydrochloric or sulfuric. Also avoid
prolonged contact with chloride-containing chemicals, especially in presence of acid. If
chlorine-based sanitizers are used, such as sodium hypochlorite (bleach), do not exceed
concentrations of 150 ppm available chlorine, do not exceed contact time of 20 minutes, and
do not exceed temperatures of 104°F (40°C).
Corrosion discoloration, deposits or pitting may occur under product deposits or under
gaskets. Keep surfaces clean, including those under gaskets or in grooves or tight corners.
Clean immediately after use. Do not allow equipment to set idle, exposed to air with
accumulated foreign material on the surface. Corrosion pitting may occur when stray electrical
currents come in contact with moist stainless steel. Ensure all electrical devices connected to
the equipment are correctly grounded.
3.2. Elastomer seal replacement following passivation
Passivation chemicals can damage product contact areas of equipment. Elastomers (rubber
components) are most likely to be affected. Always inspect all elastomer seals after passivation
is completed. Replace any seals showing signs of chemical attack. Indications may include
swelling, cracks, loss of elasticity or any other noticeable changes when compared with new
components.

4. INTRODUCTION
apflo LPX series 9
4. INTRODUCTION
DANGER! The pump contains internal moving parts. DO NOT put hands or fingers into
the pump body ports or drive area at any time during operation. To avoid serious injury,
DO NOT install, clean, service, or repair the pump unless all power is off and locked out.
4.1. Pump model designation
LPX 40-1 - 1SSE2D4Z - 30/129 T - N - TRF
1
2
3
4
5
6
7
1. Tapflo Lobe Pump LPX
LPX = apflo Lobe Pump
2. Pump size (pump inlet dimension DN):
Connection size Displacement
Inlet Outlet
litres/rev
25-1 25 25 0,04
25-2 25 25 0,1
40-1 40 40 0,14
40-2 40 40 0,23
50-1 50 50 0,3
50-2 50 50 0,67
80-1 80 80 0,94
100-1 100 100
2,29
3. Special pump solutions:
1. Mechanical seal
no sign. = SiC / SiC / FKM (VI ON) / AISI316L (FDA standard)
SSE = SiC / SiC / EPDM / AISI316L (FDA standard)
2. ype of mechanical seal
no sign. = single mechanical seal (standard)
D = double mechanical seal (SiC / SiC; elastomers as on liquid side)
3. Connection options
no sign. = thread DIN11851
C = SMS 3017 clamp
= DIN 32676 clamp
4. Optional executions
Z = buffer liquid reservoir
FQ = system with QF 1000 tank
J = front cover heating
5. Connections position
no sign. = horizontal
V = vertical

4. INTRODUCTION
apflo LPX series 10
4. Motor Data:
Example:
30
/
129
I
I
Motor Power Gear Motor Speed
02
= 0.25 kW
03
= 0.37 kW
05
= 0.55 kW
07
= 0.75 kW
11
= 1.1 kW
15 = 1.5 kW
22 = 2.2 kW
30 = 3.0 kW
40 = 4.0 kW
55 = 5.5 kW
75 = 7.5kW
110 = 11 kW
150 = 15 kW
5. Motor options:
M = pump with hygienic motor shroud
C = external cooling for electric motor
= motor with P C
F60 = 60 Hz motor
IP…. = IP class for motor
UL = UL/CSA certified motor
H = motor for high humidity
V… = optional motor voltage
6. Gearmotor Manufacturer:
N = NORD
B = Bonfiglioli
S = SEW
X = Special
7. ssembly options:
no sign. = Pump Unit on Baseplate
R = Pump Unit on rolley
RF = Pump Unit on rolley with IP66 frequency inverter
RC = Pump Unit on rolley with Control switch

4. INTRODUCTION
apflo LPX series 11
4.2. Intended use
CAUTION! Improper use of the pumps leads to:
Damage
Leakage
Destruction
Possible failures in the production process
he apflo LPX Lobe Rotary Pump is exclusively intended for pumping liquids, especially in
beverage and food installations as well as in comparable applications of the chemical,
pharmaceutical and health care industries.
Its use is permissible only within the admissible pressure and temperature margins and under
consideration of chemical and corrosive influences.
Any use exceeding the margins and specifications set forth is considered to be not intended.
Any damage resulting therefrom is not within the responsibility of the manufacturer. he user
will bear the full risk.
4.3. Pump receiving
NOTE! Each pump is shipped from the factory with the gearbox sealed. Prior to
operation, check the oil level and replace the uppermost oil drain plug with the supplied
oil fill breather. See chapter 7.2: “Lubrication” for oil type and quantity.
All ports are covered at the factory to keep out foreign objects during transit. If covers are
missing or damaged, remove the pump cover for a thorough inspection of the fluid head. Be
sure that the pumping head is clean and free of foreign material before rotating the shaft.
4.4. Pump characteristics
hese positive displacement, low-slip, stainless steel pumps are designed with larger diameter
shafts for greater strength and stiffness and are mounted on a heavy-duty cast iron bearing
frame with double tapered roller bearings.
Designed for continuous operation.
Rotor connections are sealed from the product zone.
Rotors are secured to the shafts using rotor nuts.
Single mechanical seals are standard.
CIP capability.
4.5. Equipment serial number
All pumps are identified by a serial number on the gear case nameplate. he serial number is
also stamped on the pump body.
NOTE! The gear case and body must be kept together to maintain proper rotor
clearance. Failure to do so will damage the pump.

4. INTRODUCTION
apflo LPX series 12
4.6. Pump shaft location
Fig. 2: Upper and Lower Shaft Mount Fig. 3: Side mount Left Hand (as viewed from
pump cover)
here are two pump drive shaft locations, as shown in Figure 2 and Figure 3. When side-
mounted, left-hand as viewed from the pump cover (Figure 3), rotation may be reversed for
up or down vertical flows. See also Figure 24 and Figure 25.
he mounting position may be easily reconfigured by changing the location of the mounting
feet. he breather plug must be moved to the uppermost port and the level indicator should
be in the lowest, side port in the gear cover.

4. INTRODUCTION
apflo LPX series 13
4.7. Pump dimensions
4.7.1. Mounting dimensions
ISO 2852
DIN 11851
SMS 1145
DIN 2633
Model O B CP D E F G J K L N O R U
X
Z
25-1 175.5 230.5 130.0 281.4 149.6 72.8 100.0 10 87.6 6x6 227.6 34.7 231.6 43.5 19 98.0 130.0 118.6
25-2 175.5 230.5 130.0 286.8 149.6 72.8 100.0 10 87.6 6x6 229.0 34.7 231.6 44.9 19 98.0 130.0 118.6
40-1 175.5 230.5 130.0 298.7 149.6 72.8 100.0 10 87.6 6x6 235.8 34.7 231.6 51.7 19 98.0 130.0 118.6
40-2 175.5 230.5 130.0 299.1 149.6 72.8 100.0 10 87.6 6x6 235.9 34.7 231.6 51.8 19 98.0 130.0 118.6
50-1 175.5 230.5 130.0 311.1 149.6 72.8 100.0 10 87.6 6x6 241.8 34.7 231.6 57.7 19 98.0 130.0 118.6
50-2 239.1 310.6 160.0 396.4 205.9 99.5 120.0 13 112.9 10x8 321.0 57.6 292.9 75.5 38 124.0 156.0 159.4
80-1 239.1 310.6 160.0 423.9 205.9 99.5 120.0 13 112.9 10x8 332.6 57.6 292.9 87.1 38 134.0 166.0 159.4
100-1 301.1 384.6 250.0 553.6 263.7 130.5 210.0 13 138.7 16x10 437.0 85.6 368.2 81.5 55 159.0 189.0 201.2
4.7.2. Technical data
Model
Displacement
liter/rev
Nominal
Connection
Size
Differential
Pressure
Rating
bar
Max.
Pump
Speed
RPM
Input
Shaft
Diameter
Max.
Torque
N-m
Max.
Temp. °C
Horizontal
Mount
Pump
Weight
Vertical
Mount
Pump
Weight
25-1 0.04 25 (1") 10 1200 19 108 100 22 22
25-2 0.10 25 (1") 10 900 19 108 100 22 22
40-1 0.14 40 (1.5") 10 900 19 108 100 24 24
40-2 0.23 40 (1.5") 10 900 19 108 100 24 24
50-1 0.30 50 (2")
10
900 19 108
100
25 25
50-2 0.67 50 (2") 10 700 38 400 100 65 65
80-1 0.94 75 (3") 10 700 38 400 100 70 70
100-1 2.29 100 (4") 10 600 55 1200 100 148 148
NOTE! ll weights in daN, mass in Kg.

4. INTRODUCTION
apflo LPX series 14
4.7.3. Sound level
4.7.4. Maximum particle size
Model
Port Connection
Inside Diameter
(mm)
Max. Theoretical
Particle Size
(mm)
Recommended Max.
Particle Size
(mm)
25-1 20 7.6 3
25-2 26 15.6 5
40-1 40 15.6 5
40-2 40 25.6 9
50-1 50 25.6 9
50-2 50 38.5 13
80-1 81 38.5 13
100-1 100 45.6 15
25-1, 25-2, 40-1 max. RPM 40-2, 50-1 max. RPM
50-2, 80-1 max. RPM 100-1 max. RPM

5. INSTALLATION
apflo LPX series 15
5. INST LL TION
he installation of the pump and piping system should be in accordance with local codes and
restrictions. Practices described in this manual are recommended for optimum performance.
All system equipment, such as motors, sheaves, drive couplings, speed reducers, etc., must be
properly sized to ensure satisfactory operation of your pump within its limits.
CAUTION! These pumps are positive displacement, low slip design and will be severely
damaged if operated with closed valves in discharge or inlet lines. The pump warranty
is not valid for damages caused by a hydraulic overload from operation or start-up with
a closed valve in the system.
5.1. Install pump and drive unit
WARNING! Full guards must be installed to isolate operators and maintenance
personnel from rotating components.
Fig. 4: Portable Base Fig. 5: Adjustable Leg Base
Fig. 6: Leveling and/or Vibration Isolation Pads Fig. 7: Permanent Installation on Foundation
In a typical installation configuration, the pump and drive unit are mounted on a common
base plate. he unit can be installed in any of the arrangements shown in Figure 4 through
Figure 7 (the shaded area indicates the guard location).
NOTE! When installing unit as shown in Figure 7, level the unit before installing the
bolts.

5. INSTALLATION
apflo LPX series 16
5.2. Install connections and piping
5.2.1. Piping support
Fig. 8: Piping Support
o minimize forces exerted on the pump, support all piping to the pump independently with
hangers or pedestals. Such forces can cause misalignment of the pump parts and lead to
excessive wear of rotors, bearings, and shafts.
Figure 8 shows typical supporting methods used to independently support each pipe,
reducing the weight effect of piping and fluid on the pump.
5.2.2. Expansion joints
Fig. 9: Flexible Connections and Supports
hermal expansion of piping can cause tremendous forces. Use thermal expansion joints to
minimize these forces on the pump.
Flexible joints can be used to limit transmission of mechanical vibration. Ensure that the free
ends of any flexible connections in the system are anchored.
5.2.3. Inlet piping
Fig. 10: Pump Below Supply
Install the pump below the supply liquid level to reduce the air in the system by flooded
suction (Figure 10).

5. INSTALLATION
apflo LPX series 17
Fig. 11: Correct Piping to Prevent Inlet Air Pockets
If the pump is installed above the supply liquid level, the piping on inlet side must slope up
toward the pump, preventing air pockets in the pipes (Figure 11).
5.3. Install check valves
5.3.1. Inlet side on lift applications
Fig. 12: Inlet Check Valve
Use check valves to keep the inlet line full, particularly with low-viscosity fluids (Figure 12).
A. Inlet Check Valve
B. Foot Check Valve
5.3.2. Discharge side
Fig. 13: Discharge Check Valve
For systems with liquid under a vacuum, we recommend installing a check valve on the
discharge side of the pump. he check valve prevents backflow (air or fluid) to aid in the initial
start-up by minimizing the required differential pressure supplied by the pump to start the
flow (Figure 13).
A. Closed ank - produces a vacuum on liquid (Low Absolute Pressure)
B. Check Valve (outlet)

5. INSTALLATION
apflo LPX series 18
5.4. Install isolation valves
Fig. 14: Isolation Valves
Isolation valves permit pump maintenance and safe pump removal without draining the
system (Figure 14, item A).
5.5. Install relief valves
Fig. 15: Relief Valves
Install relief valves to protect the pump and piping system against excessive pressure. We
recommend installing an external relief valve designed to bypass fluid from the pump outlet
to the inlet side of the system (Figure 15, item A).
5.6. Install side strainers and traps
Fig. 16: Inline Strainers and raps
Inlet side strainers and traps (Figure 16, items A and B) can be used to prevent foreign matter
from damaging the pump. Make the selection carefully to prevent cavitation caused by the
restriction of the inlet. If the inlet strainers are used, they must be serviced regularly to prevent
clogging and flow stoppage.
A. Strainer
B. Magnetic ap

5. INSTALLATION
apflo LPX series 19
5.7. Install pressure gauges
Fig. 17: Pressure and Vacuum Gauges
Pressure and vacuum gauges provide valuable information about pump operation (Figure 17).
Wherever possible, install the gauges to help provide information on the following:
Normal or abnormal pressures
Indication of flow
Changes in pump condition
Changes in system conditions
Changes in fluid viscosity
5.8. Seal flush connections
Fig. 18: Flush Piping Setup
Pumps with double seals require flushing. he flush media (typically water) must be connected
and flowing whenever pump is operated.
WARNING! Operating the pump without flush will damage the seal and pump parts due
to excess heat from dry running.
Pump bodies have four G 1/8 BSP flush connections located near the bottom and top of the
body (Figure 18, item A).
1. Flushing media may be piped into either side for both shaft seals and discharged to drain
on opposite side.
2. Both inlets may be manifolded to simplify piping. Be sure flush water is flowing out both
discharge lines.

5. INSTALLATION
apflo LPX series 20
3. Use cool, filtered flush media to obtain maximum service life of seal components. If the
pumped product is sticky or solidifies at room temperature, use warm or hot media.
4. Install a pressure reducing valve and flow control valve (needle valve) on the flush supply
line. Set the supply pressure at a maximum of 2 bar (30 psi) and adjust the flow rate to
approximately 0.9 lpm (1/4 gpm) (more for high temperature applications).
5. 5A solenoid valve also should be installed in the flush supply and wired in series with the
motor starter to provide automatic start/stop of the flush media flow before the motor
turns on and after motor turns off.
5.9. CIP (Clean-In-Place) guidelines
hese optional CIP (Clean-In-Place) guidelines are designed to provide complete access of
CIP solutions to all product contact surfaces:
Ensure that the velocity rate of CIP solutions is adequate to clean the entire circuit.
For most applications, a velocity of 1.5 m/sec (5 ft./sec) is sufficient. For the CIP
solution to achieve the proper velocity, the pump drive must have enough speed
range and horsepower. he 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. o determine the appropriate bypass arrangement,
contact Application Engineering.
Ensure 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. he high-pressure side may be either the inlet or outlet side. 2 bar
(30 psi) differential pressure is adequate for most applications.
he 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.
5.10. Check coupling alignment
Pump and drive coupling alignment must be rechecked after the complete unit has been
installed and piping completed. Periodic rechecking is advisable during the pump service life.
We recommend using a flexible coupling to connect the drive to the pump. Several
different types are available, including couplings with slip or overload provision.
Flexible couplings can be used to compensate for end play and small differences in
alignment.
Align the pump and drive shaft as closely as possible.