Dover PSG Mouvex AF HT Owner's manual

AF HT PUMP
Construction O
INSTALLATION
OPERATION
MAINTENANCE
INSTRUCTIONS 1003-D00 e
Section 1003
Effective September 2012
Replaces September 2011
Original instructions
Your distributor :
Z.I. La Plaine des Isles - F 89000 AUXERRE - FRANCE
Tel. : [phone] - Fax : [phone]
[email protected] - www.mouvex.com

2/18NT 1003-D00 09.12 AF HT e
This is a SAFETY ALERT SYMBOL
When you see this symbol on the product, or in the manual, look
for one of the following signal words and be alert to the potential for
personal injury, death or major property damage.
Warns of hazards that WILL cause serious personal injury,
death or major property damage
Warns of hazards that CAN cause serious personal injury,
death or major property damage.
Warns of hazards that CAN cause personal injury or property
damage.
NOTICE
Indicates special instructions which are very important and
must be followed.
SAFETY INFORMATIONS
WARNING
CAUTION
DANGER
ECCENTRIC PISTON PUMP
MOUVEX PRINCIPLE
SAFETY, STORAGE, INSTALLATION AND MAINTENANCE INSTRUCTIONS
MODEL : AF HT
TECHNICAL CHARACTERISTICS
• Construction : Cast iron and steel
• Maximum suction pressure : less than 1 barg
• Acceptable maximal differential pressure : 5 bar
• Maximum pump speed : 625 rpm
• Maximum operating temperature :
* 250°C with FKM HT seals
• Cylinder capacity : 0,164 litre
TABLE OF CONTENTS Page
1. OVERALL DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . .3
2. INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.1 Choice of pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.2 Piping diameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.3 Piping assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.4 Direction of rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.5 Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.6 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.7 Anchoring the pump units . . . . . . . . . . . . . . . . . . . . . . .5
2.8 Alignment of motor / pump and reduction gearbox /
pump shafts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.9 Electric motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.10 Diesel engine drive . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3. USE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.1 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.2 Pumping hot products . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.3 Pump filled with product at shutdown . . . . . . . . . . . . . .7
3.4 Starting-up the pump . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.5 Shutting down the pump . . . . . . . . . . . . . . . . . . . . . . . .7
3.6 Scrapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
4. OPENING THE PUMP TO INSPECT THE CYLINDER/
PISTON AND BUSHINGS . . . . . . . . . . . . . . . . . . . . . . . . .8
4.1 Necessary tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4.2 Removing the front cover . . . . . . . . . . . . . . . . . . . . . . .9
4.3 Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
5. MECHANICAL SEALS . . . . . . . . . . . . . . . . . . . . . . . . . . .10
5.1 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
5.2 Dismantling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
5.3 Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
6. BYPASS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
6.1 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
6.2 Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
6.3 Inversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
6.4 Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
6.5 Obtaining the flow . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
6.6 Energy consumption . . . . . . . . . . . . . . . . . . . . . . . . . .14
6.7 Standard bypass use . . . . . . . . . . . . . . . . . . . . . . . . .14
7. MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
7.1 Greasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
7.2 Checking of parts . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
8. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . .15
9. CERTIFICATE OF CONFORMITY . . . . . . . . . . . . . . . . . .18
Unit without suffix :
Differential pressure, for example, pressure difference between
equipment suction and discharge.
Unit with suffix "a" :
Absolute pressure.
Unit with suffix "g" :
Gauge pressure, given regarding to atmospheric pressure
(~101325 Pa, taken at 1 bar / 14,5 psi in this IOM).
Pompe
P
asp
P
re
f
Psuc Pdis
Pump
Example :
Psuc = -0,2 barg = 0,8 bara
Pdis = 8,8 barg = 9,8 bara
∆P= Pdis - Psuc = 9 bar
USED PRESSURE UNITS

3/18NT 1003-D00 09.12 AF HT e
1. OVERALL DIMENSIONS
Weight : 28 kg
EBypass valve.
PPump plate.
P1 Mechanical seal bleed valve.
SMounting point for probe : M6 - threaded width : max. 8 mm.
VPump drain.
Noise level
The sound level of a pump is greatly influenced by its condi-
tions of use. Cavitation and pumping products with high gas
contents generally increases the sound level.
Under the following pumping conditions :
• excluding cavitation
• discharge pressure : 5 bar
• speed of rotation 625 rpm
• product viscosity of 1 cSt
The sound level reached for the AF HT pump in good condi-
tions (ignoring the motor and gearbox noise) is less than
78 dB(A).

4/18NT 1003-D00 09.12 AF HT e
2. INSTALLATION
2.1 Choice of pump
To obtain the service expected from a MOUVEX pump,
regarding both performance and longevity, it is vital that
the type of pump, its speed and the materials used for its
construction are determined as a function of the pump
output, its installation and operating conditions.
You can contact our Technical Services at any time to
ask for the information you require.
2.2 Piping diameters
The location of the pump in the transfer or recycling circuit
should always be determined so as to reduce the suction
height and length of the piping as much as possible.
The diameter of the pipes must be determined as a func-
tion of their length on the one hand, and the flow and vis-
cosity of the product on the other, so that head loss
remains within design limits. Therefore it is difficult to
give general and precise directions.
However, we recall that it is never prejudicial to plan for
wide piping diameters, particularly regarding the intake.
For the discharge, it is also possible to plan for a diame-
ter equal to that of the pump's orifices, and on the inta-
ke, for a wider diameter if suction is very strong. In the
case of viscous products, the determination of this dia-
meter is very important since the variation of head loss
is proportional to the viscosity and inversely proportional
to the power of 4th of the diameter. Therefore a small
reduction of piping diameter can have major consequen-
ces. Our Technical Services are always available to pro-
vide you with precise data if you give them accurate
information or, better still, the installation plans.
2.3 Piping assembly
Wherever possible, siphons and reverse slopes in the
suction piping must be avoided and all the gaskets must
be installed with great care to avoid air from entering the
piping.
The elbows must always have a large radius and must
not be assembled too close to the pump flanges, at the
inlet as well as the outlet side.
A straight pipe 5 diameters is recommended between
the pump flange and any pipe fitting (elbow, valve…).
The stresses exerted by the piping on the pump can
deform the pump parts, increase wear, misalign the bea-
rings and even cause parts to break.
The pipes must be designed to allow thermal expansion
and contraction and be firmly secured (the use of flexi-
ble hoses and expansion loops is recommended).
We recommend placing isolating valves close to the
pump flanges to permit dismantling and replacement
without having to drain the installation. These valves
should have the same diameter as the pipes and, by
preference, be a full bore model.
A strainer should be fitted in the suction line to prevent
the introduction of foreign bodies into the pump.
Before installing the new piping and tanks, clean them
carefully to remove welding waste, rust, etc., which
when carried by the liquid may damage the pump.
If the liquid may freeze or solidify, prepare for draining
the piping by installing drain taps at the low points and
air vents at the high points.
In the case of a very high intake or if you wish to prevent
the piping from emptying at shutdown, you can install a
foot valve. It should have a large diameter so as not to
generate additional head loss.
2.4 Direction of rotation
The MOUVEX pump is reversible; this allows it to always
circulate the liquid in the desired direction by choosing
the corresponding direction of rotation.
The intake and discharge sides are determined as fol-
lows :
When an observer faces the shaft, if rotation takes place
clockwise, the intake is on the left; on the contrary if the
rotation is anticlockwise, the intake is on the right.
Figure A - Clockwise rotation
Suction Discharge
FAILURE TO RELIEVE THE SYSTEM
PRESSURE PRIOR TO PERFORMING
ANY WORK ON THE PUMP OR THE
INSTALLATION CAN CAUSE PERSONAL
INJURY OR PROPERTY DAMAGE.
WARNING
Hazardous pressure
can cause
personal injury
or property damage.
FAILURE TO RELIEVE THE SYSTEM
PRESSURE PRIOR TO PERFORMING
ANY WORK ON THE PUMP OR THE
INSTALLATION CAN CAUSE PERSONAL
INJURY OR PROPERTY DAMAGE.
WARNING
Hazardous pressure
can cause
personal injury
or property damage.

5/18NT 1003-D00 09.12 AF HT e
2. INSTALLATION (continued)
2.5 Bypass
The bypass protects only the pump in only one direction, but
it is reversible. Cap A must be on the intake side. This must
be done before the pump is started for the first time and reva-
lidated if the pumping circuit changes.
Once the pump is drained, the bypass can easily be
changed to the correct direction by dismantling the
screws of the fastening pins and by turning the bypass
180° : before locking it in its new position, make sure
that you carefully install the seals beneath it.
2.6 Cleaning
Since the pumps are delivered well greased, they must be
cleaned before starting them up (especially when trans-
ferring food products, for example).
Cleaning can be done either by circulating an appropriate
liquid, or by removing the front cover of the pump and
carefully cleaning the internal parts. (cf. § OPENING THE
PUMP).
2.7 Anchoring the pump units
The correct seating of the pump is vital for its efficient
operation and its longevity.
The surface must be resistant enough to absorb the
stresses due to the pump unit without deformation.
In the case where the unit is fastened by anchor lugs or
bolts, it must be carefully wedged to prevent any defor-
mation of the chassis when tightening the bolts.
Deformation of the chassis will cause stress prejudicial
to the pump and the drive device and put the coupling
out of true, thereby causing vibrations, noise and prema-
ture wear. Care must be taken so that the chassis is
clear of the ground, apart from the base plates.
The chassis is equipped with a ground connection that
must be used.
We recommend leaving an unoccupied space of about
50 cm, on either end of the chassis, to permit access to
the bolts fastening the pump, reduction gear and motor
together.
2.8 Alignment of motor / pump and reduction
gearbox / pump shafts
The motor and pump shafts are perfectly aligned in the
factory before shipment, but they must be checked and
realigned after installation if necessary.
To check the alignment and coupling, use a set square
to control the axial misalignment, and feeler gauges for
angular misalignment.
WARNING
Dangerous voltage.
Can cause
injury and death.
DISCONNECT THE ELECTRICITY SUPPLY
BEFORE ANY MAINTENANCE OPERATION.
WARNING
Do not operate
without guard
in place.
OPERATION WITHOUT THE SHAFT
PROTECTOR CAN CAUSE SERIOUS
PERSONAL INJURY, MAJOR PROPERTY
DAMAGE, OR DEATH.
Suction
Discharge
IF PUMPING HAZARDOUS OR TOXIC
FLUIDS, THE SYSTEM MUST BE FLUSHED
PRIOR TO PERFORMING ANY SERVICE
OPERATION.
WARNING
Hazardous or toxic
fluids can cause
serious injury.
FAILURE TO RELIEVE THE SYSTEM
PRESSURE PRIOR TO PERFORMING
ANY WORK ON THE PUMP OR THE
INSTALLATION CAN CAUSE PERSONAL
INJURY OR PROPERTY DAMAGE.
WARNING
Hazardous pressure
can cause
personal injury
or property damage.

6/18NT 1003-D00 09.12 AF HT e
2. INSTALLATION (continued)
The 3 figures below show the operation clearly.
It is important to control the alignment at every step of
installation in order to ensure that none of these steps
generates stress on the pump unit or the pump itself :
• after fastening on foundations
• after fastening the piping
• after the pump has operated at normal operating
temperature.
REMINDER :
Do not rely on the flexible coupling to compensate for
misalignment.
2.9 Electric motors
Check that the supply voltage matches the indications
on the motor rating plate.
Comply with the wiring diagram, make sure the wires are
rated for the power and take care with the contacts
which must be thoroughly tightened.
The motors must be protected by appropriate circuit
breakers and fuses.
Connect the regulatory ground connections.
Check the direction of rotation :
This fundamental checking of the pump must be done
without any product, with the inlet and outlet circuit open
to the air, for example, to avoid any risk of an unexpec-
ted pressure rise. Start the pump empty to check the cor-
rect operation of the connections and check that the
direction of rotation corresponds to installation's inlet
and outlet direction. Follow the instructions below if
necessary to change the direction of rotation.
Three phase motor : switch any two wires or two phases
of the current supply.
Two phase motor : switch the two wires of the same
phase.
Single phase motor : comply with the instructions of the
manual supplied with the motor.
2.10 Diesel engine drive
Do not forget that these engines are not reversible. It is
therefore vital to carefully check the inlet and outlet sides
of the pump before connecting the pump unit to the
piping.
The use of diesel engines is now well known.
Nevertheless, we strongly recommend that you carefully
read the technical manuals concerning them.
DISCONNECT THE ELECTRICITY SUPPLY
BEFORE ANY MAINTENANCE OPERATION.
WARNING
Dangerous voltage.
Can cause
injury and death.
THE SURFACES CAN BE AT A TEMPE-
RATURE LIABLE TO CAUSE INJURY
OR SEVERE DAMAGE.
CAUTION
Excessive temperature-
can cause injury or
severe damage.
OPERATION WITHOUT THE SHAFT
PROTECTOR CAN CAUSE SERIOUS
PERSONAL INJURY, MAJOR PROPERTY
DAMAGE, OR DEATH.
WARNING
Do not operate
without guard
in place.
Carry out a control on 4 points:
At the top - at the bottom - on the left - on the right
Correct
Axial alignment
out of true
Angular alignment
out of true

7/18NT 1003-D00 09.12 AF HT e
3. USE
3.1 Storage
In the case of prolonged shutdown or storage, we
recommend dismantling the pump and greasing it tho-
roughly. If it cannot be dismantled, it should be filled with
oil via its orifices (inlet and outlet) and rotated slowly by
hand to allow the oil to penetrate. The flange seal surfa-
ces should be thoroughly greased to protect them
against atmospheric oxidation.
3.2 Pumping hot products
When pumping products at high temperatures, take care
when starting the pump for the fist time, tighten the bolts
to compensate for expansion effects.
3.3 Pump filled with product at shutdown
In the case where the pumping circuit is situated bet-
ween isolating valves and/or has a check valve, you
must bear in mind the variations in temperature that can
occur, leading in particular to the expansion of the pro-
duct in the circuit. In this case, provide a means of relea-
sing the expansion volume.
The use of a relief valve can suffice for this function. The
opening pressure of this valve must be compatible with
the pressure allowed by the parts composing the circuit.
With products including particles that settle at shutdown,
it is necessary to ensure that the consistency of the
deposited products will not affect the start-up of the
pump.
3.4 Starting-up the pump
Before starting up the pump, always ensure that the
pumping conditions are correct, with the corresponding
valves open, especially the inlet valve. For products
requiring heating, they must be brought to their pumping
temperature before starting the pump.
3.5 Shutting down the pump
When shutting down the pump, we recommend waiting
for the pump to stop completely before closing the val-
ves, especially the inlet valve.
3.6 Scrapping
The pump must be scrapped in compliance with the
regulations in force.
During this operation, particular care must be paid to the
drainage stages of the pump (pumped product).
FAILURE TO INSTALL ADEQUATELY
SIZED PRESSURE RELIEF VALVE(S)
CAN CAUSE PROPERTY DAMAGE, PER-
SONAL INJURY OR DEATH.
WARNING
Hazardous pressure
can cause
personal injury
or property damage.
THE SURFACES OF THE PUMP CAN
BE AT A TEMPERATURE LIABLE TO
CAUSE INJURY OR SEVERE DAMAGE.
CAUTION
Excessive temperature-
can cause injury or
severe damage.
OPERATION WITHOUT THE SHAFT
PROTECTOR CAN CAUSE SERIOUS
PERSONAL INJURY, MAJOR PROPERTY
DAMAGE, OR DEATH.
WARNING
Do not operate
without guard
in place.
FAILURE TO RELIEVE SYSTEM PRESSURE
PRIOR TO PERFORMING PUMP SERVICE
OR MAINTENANCE CAN CAUSE PERSONAL
INJURY OR PROPERTY DAMAGE.
WARNING
Hazardous pressure
can cause
personal injury
or property damage.

8/18NT 1003-D00 09.12 AF HT e
4. OPENING THE PUMP TO INSPECT
THE CYLINDER/PISTON AND BUSHINGS
Before opening the pump, always ensure that it has been drained and release the pressure it may contain.
Make sure the isolation valves, if any, are closed before pulling out the drain plug 434 and its seal 412.
FAILURE TO RELIEVE SYSTEM PRESSURE
PRIOR TO PERFORMING PUMP SERVICE
OR MAINTENANCE CAN CAUSE PERSONAL
INJURY OR PROPERTY DAMAGE.
WARNING
Hazardous pressure
can cause
personal injury
or property damage.
IF PUMPING HAZARDOUS OR TOXIC
FLUIDS, THE SYSTEM MUST BE FLUSHED
PRIOR TO PERFORMING ANY SERVICE
OPERATION.
WARNING
Hazardous or toxic
fluids can cause
serious injury.
DISCONNECT THE ELECTRICITY SUPPLY
BEFORE ANY MAINTENANCE OPERATION.
WARNING
Dangerous voltage.
Can cause
injury and death.
DISCONNECTING THE FLUID OR PRES-
SURE CONTAINMENT COMPONENTS
DURING PUMP OPERATION CAN CAUSE
SERIOUS PERSONAL INJURY, DEATH
OR MAJOR PROPERTY DAMAGE.
WARNING
Hazardous pressure
can cause
personal injury
or property damage.
THE PUMP LUBRICANT IS VERY SLIPPERY
AND MAY CAUSE SERIOUS INJURY.
ANY SPILLS MUST BE CLEANED UP.
CAUTION
Slippery lubricant.
Spills should be
cleaned up.
BE CAREFUL WITH THE WEIGHT OF
THE PARTS WHEN THEY ARE BEING
REMOVED.
WARNING
The weight ot the parts can
be dangerous and may
provoke bodily injuries or
material damages.

9/18NT 1003-D00 09.12 AF HT e
4. OPENING THE PUMP TO INSPECT
THE CYLINDER/PISTON AND BUSHINGS (continued)
Bypass fastening
For the SEALS refer to
the specified drawing
Serial Nbr
4.1 Necessary tools
• 1 plastic mallet
• Extractor
• Retaining ring pliers
• 13 flat spanner
• 6/4 hexagon socket wrench
Makeup torque : M8 : 23 Nm.
4.2 Removing the front cover
To remove front cover
Unscrew the bolts 409 securing the front cover.
Remove the front cover 401 by progressively separating
it from the pump body.
To remove piston
Remove the sleeve 515 by using the nut to release it.
Using a screwdriver as a lever, extract the piston 301.
The pumping characteristics demand a cylinder/piston
with matching dimensions. Consequently, changing the
cylinder or piston requires the replacement of both the
cylinder and the piston.
To remove mechanical seal and shaft
Remove the mechanical seal and the shaft by following
the directions § MECHANICAL SEAL.
4.3 Reassembly
Reassembly is done in the reverse order than the dismantling.
Take the following precautions :
• Check the condition of the mechanical seal (see §
MECHANICAL SEAL).
• Check that springs 504 of piston bearing 503 have not
weakened. Light load must be applied to the springs
in order to insert the piston 301 into the cylinder 201.
• Check also that the piston backspring 310 has not
weakened.
• Before refitting the front cover 401, do not forget to
refit the front cover seal 403 after making sure it is in
good condition.
BE CAREFUL WITH THE WEIGHT OF
THE PARTS WHEN THEY ARE BEING
REMOVED.
WARNING
The weight ot the parts can
be dangerous and may
provoke bodily injuries or
material damages.

10/18NT 1003-D00 09.12 AF HT e
5. MECHANICAL SEALS
5.1 Operation
Shaft 501 drives the rotating part 697 of the mechanical
seal in a rotary motion.
The stationary seal face 604 of the seal is fixed in the
mechanical seal holder 701 with the stopper 627.
Sealing is done with the mechanical seal 600a :
• on the shaft by the rotating part seal ,
• by the mating surface between the rotating part and
the fixed part,
• in the bore of the mechanical seal holder 701 by the
fixed part seal.
Sealing is therefore done as a function of the condition
of these contact surfaces and the seals.
Before starting up the pump, it is essential to bleed air
from the mechanical seal holder 701 via the plug 738
(the air is replaced by the product being pumped or a
compatible product).
5.2 Dismantling Before opening the pump, make sure the pump has
been drained and take the necessary precautions to pre-
vent it from starting up.
It must not be possible to start it up, even by accident.
The pump must be at ambient temperature.
After opening the pump (see § 4.) :
• Remove the screws 776 on the pump side.
• Take out the mechanical seal holder 701 and bearing
736 assembly with the shaft 501 by tapping with a mal-
let on the end of the shaft 501 opposite the drive end.
• Remove the screws 706, the cover 705 and the circlips
704.
• Remove the screws 776 from the drive end.
• Use an extractor to take out the assembly of the
mechanical seal holder 701, bearing 732, protection
733, the washer 731 and fixed part of the mechanical
seal 600a.
• Remove the screws from the rotating part of the mecha-
nical seal 600a and separate it from the shaft 501.
• Remove the fixed part of the mechanical seal 600a
from the mechanical seal holder 701.
DISCONNECTING THE FLUID OR PRES-
SURE CONTAINMENT COMPONENTS
DURING PUMP OPERATION CAN CAUSE
SERIOUS PERSONAL INJURY, DEATH
OR MAJOR PROPERTY DAMAGE.
WARNING
Hazardous pressure
can cause
personal injury
or property damage.
DISCONNECT THE ELECTRICITY SUPPLY
BEFORE ANY MAINTENANCE OPERATION.
WARNING
Dangerous voltage.
Can cause
injury and death.
IF PUMPING HAZARDOUS OR TOXIC
FLUIDS, THE SYSTEM MUST BE FLUSHED
PRIOR TO PERFORMING ANY SERVICE
OPERATION.
WARNING
Hazardous or toxic
fluids can cause
serious injury.
FAILURE TO RELIEVE SYSTEM PRESSURE
PRIOR TO PERFORMING PUMP SERVICE
OR MAINTENANCE CAN CAUSE PERSONAL
INJURY OR PROPERTY DAMAGE.
WARNING
Hazardous pressure
can cause
personal injury
or property damage.