Samoa Larius P31 2:1 Operating instructions

www.larius.com
REV. 01 - 09/2020
Manuale Cod. 150169
II 2 G c IIB T4
OPERATING AND MAINTENANCE MANUAL
EN
P31
2:1
Pneumatic tranfer
pump
Stubby version Cod. 3710
Stainless steel stubby Cod. 3715
Long version Cod. 3700
Stainless steel long version Cod. 3705

Due to a constant product improvement programme, the factory reserves the right to modify
technical details mentioned in this manual without prior notice.
This manual is to be considered as an English language translation of the original manual in Italian.
The manufacturer shall bear no responsibility for any damages or inconveniences that may arise due to
the incorrect translation of the instructions contained within the original manual in Italian.

www.larius.com
1
P31 2:1
REV. 01 - 09/2020 - Cod. 150169
A
C
D
B
E
H
G
F
I
M
J
K
L
N
WE ADVISE THE USE OF THIS EQUIPMENT ONLY BY PROFESSIONAL OPERATORS.
ONLY USE THIS MACHINE FOR USAGE SPECIFICALLY MENTIONED IN THIS MANUAL.
Thank you for choosing a LARIUS S.R.L. product.
As well as the product purchased, you will receive a range of support services
enabling you to achieve the results desired, quickly and professionally.
INDEX
WARNINGS ..................................................................................................................................................................2
WORKING PRINCIPLE .................................................................................................................................................3
TECHNICAL DATA ........................................................................................................................................................3
DESCRIPTION OF THE EQUIPMENT ..........................................................................................................................4
TRANSPORT AND UNPACKING ..................................................................................................................................5
CONDITIONS OF GUARANTEE ...................................................................................................................................5
SAFETY RULES............................................................................................................................................................5
TYPICAL INSTALLATION..............................................................................................................................................6
SETTING-UP ................................................................................................................................................................7
PROBLEMS AND SOLUTIONS ....................................................................................................................................7
WORKING ....................................................................................................................................................................7
COMPLETE PNEUMATIC MOTOR P31 2:1 .................................................................................................................8
PUMPING COMPLETE GROUP P31 2:1 ...................................................................................................................10
COMPLETE PUMPS VERSIONS................................................................................................................................12
ATEX CERTIFICATE ....................................................................................................................................................13
DECLARATION OF CONFORMITY.............................................................................................................................14
P31 2:1
Pneumatic transfer pump

www.larius.com
2
P31 2:1
REV. 01 - 09/2020 - Cod. 150169
A
The table below provides the meaning of the symbols used in this manual in relation to using, earthing, operating, maintaining, and
repairing of this equipment.
WARNINGS
• Read this operator’s manual carefully before using the equipment.
• An improper use of this machine can cause injuries to people or things.
• Do not use this machine when under the inuence of drugs or alcohol.
• Do not modify the equipment under any circumstances.
• Use products and solvents that are compatible with the various parts of the equipment, and read the manufacturer’s warnings carefully.
• See the Technical Details for the equipment given in the Manual.
• Check the equipment for worn parts once a day. If any worn parts are found, replace them using ONLY original spare parts.
• Keep children and animals away from work area.
• Comply with all safety standards.
• It indicates an accident risk or serious damage to equipment if this warning is not followed.
FIRE AND EXPLOSION HAZARD
• Solvent and paint fumes in work area can ignite or explode.
• To help prevent fire and explosion:
- Use equipment ONLY in well ventilated area.
- Eliminate all ignition sources, such as pilot lights, cigarettes and plastic drop cloths (potential static arc).
- Ground equipment and conductive objects.
- Use only grounded hoses.
- Do not use trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or uids containing such solvents in
pressurized aluminium equipment. Such use can cause serious chemical reaction and equipment rupture, and result in death,
serious injury, and property damage.
- Do not form connections or switch light switches on or off if the air contains inammable fumes.
• If electrical shocks or discharges are encountered the operation being carried out using the equipment must be stopped immediately.
• Keep a re extinguisher at hand in the immediate vicinity of the work area.
• It indicates wound and nger squashing risk due to movable parts in the equipment.
• Tenersi lontano dalle parti in movimento.
• Do not use the equipment without the proper protection.
• Before any inspection or maintenance of the equipment, carry out the decompression procedure explained in this manual, and prevent
any risk of the equipment starting unexpectedly.
• Report any risk of chemical reaction or explosion if this warning has not been given.
• (IF PROVIDED) There is a risk of injury or serious lesion related to contact with the jet from the spray gun. If this should occur, IMME-
DIATELY contact a doctor, indicating the type of product injected.
• (IF PROVIDED) Do not spray before the guard has been placed over the nozzle and the trigger on the spray gun.
• (IF PROVIDED) Do not put your ngers in the spray gun nozzle.
• Once work has been completed, before carrying out any maintenance, complete the decompression procedure.
• It indicates important recommendations about disposal and recycling process of products in accordance with the environmental
regulations.
• Mark any clamps attached to earth cables.
• Use ONLY 3-wire extension cords and grounded electrical outlets.
• Before starting work make sure that the electrical system is grounded and that it complies with safety standards.
• High-pressure uid from gun, hose leaks, or ruptured components will pierce skin.
• To help prevent injection, always:
- (IF PROVIDED) Engage trigger lock when not spraying.
- (IF PROVIDED) Do not put your hand over the spray tip. Do not stop or deect leaks with your hand, body or other.
- (IF PROVIDED) Do not point gun at anyone or at any part of the body.
- (IF PROVIDED) Never spray without tip guard.
- Do pressure relief if you stop spraying or being servicing sprayer and before any maintenance operations.
- Do not use components rated less than sprayer Maximum Working Pressure.
- Never allow children to use this unit
- (IF PROVIDED) Brace yourself; gun may recoil when triggered.
If high pressure fluid pierces your skin, the injury might look like “just a cut”, but it is a serious wound!
Get immediate medical attention.
• It is obligatory to wear suitable clothing as gloves, goggles and face shield.
• Wear clothing that complies with the safety standards in force in the country in which the equipment is used.
• Do not wear bracelets, earrings, rings, chains, or anything else that may hinder the operator’s work.
• Do not wear clothing with wide sleeves, scarves, ties, or any other piece of clothing that could get tangled up in moving parts of the
equipment during the work, inspection, or maintenance cycles.

www.larius.com
3
P31 2:1
REV. 01 - 09/2020 - Cod. 150169
Fig. 1C
B
C
PUMP SELECTION CHART
Type Code A Total lenght
(mm)
B
Pump lenght
(mm)
C
Material inlet
D
Material
outlet
E
Ring nut Weight (kg)
Galvanized long 3700 1430 970 Ball valve
M 36x2 (M)
3/4" BSPP 2" 8,5
Galvanized short 3710 670 210 3/4" BSPP - 5
Stainless steel long 3705 1430 970 Ball valveM 36x2
(M)
3/4" BSPP 2" 8,5
Stainless steel short 3715 670 210 3/4" BSPP - 5
P31 2:1
Ratio 2:1
Stroke 100 mm
Diameter 35 mm
Air feed pressure 3-12 bar
Cycles 100/min
P31 2:1
n° cycles for liter 11
Delivery at 100 cycles 9,2 lt/min
Product max pressure 35 bar
Air inlet 1/4" BSPP
A
A
D
E
B
D
B
C
C
WORKING PRINCIPLE
TECHNICAL DATA
P31 2:1 pump is a pneumatic pump designed for the transfer of low
vscosity products: antifreeze, solvents, lacquers, light adhesives.
pump standard versions are manufactured in carbon steel; for
special applications (foodstuffs industry, pharmaceutics, chemical,
etc..) on demand, are available stainless steel versions.
The standard version is available for application on a 200 lt drums
(long series). On demand, it's supplied for 60 lt drums (short
series) or other intermediate measures.
The short version can be provided with a threaded bottom valve
which can be connected to a suction pipe wich in turn can be
inserted into any size of drum.
The 2: 1 ratio indicates that the material outlet pressure is 2 times
the pump supply air pressure.

www.larius.com
4
P31 2:1
REV. 01 - 09/2020 - Cod. 150169
D
Fig. 1D
Pos. Description
1 Pneumatic motor group
2 Manometer
3 Outlet material
4 Air inlet
Pos. Description
5 Grounding cable
6 Pumping material tube
7 Material inlet
1
1
3
3
5
5
4
4
6
6
7
7
2
2
DESCRIPTION OF THE EQUIPMENT
P31 short version pump P31 long version pump

www.larius.com
5
P31 2:1
REV. 01 - 09/2020 - Cod. 150169
F
G
E
• The packed parts should be handled as indicated in the symbols
and markings on the outside of the packing.
• Before installing the equipment, ensure that the area to be
used is large enough for such purposes, is properly lit and has
a clean, smooth oor surface.
• The user is responsible for the operations of unloading and
handling and should use the maximum care so as not to damage
the individual parts or injure anyone.
To perform the unloading operation, use only qualied and
trained personnel (truck and crane operators, etc.) and also
suitable hoisting equipment for the weight of the installation
or its parts.
Follow carefully all the safety rules.
The personnel must be equipped with the necessary safety
clothing.
• The manufacturer will not be responsible for the unloading
operations and transport to the workplace of the machine.
• Check the packing is undamaged on receipt of the equipment.
Unpack the machine and verify if there has been any damage
due to transportation.
In case of damage, call immediately LARIUS and the Shipping
Agent. All the notices about possible damage or anomalies must
arrive timely within 8 days at least from the date of receipt of
the plant through Registered Letter to the Shipping Agent and
to LARIUS.
The conditions of guarantee do not apply in the
following situations:
- improper washing and cleaning of components
causing malfunction, wear or damage to the
equipment or any of its parts;
- improper use of the equipment;
- use that does not conform with applicable
national legislation;
- incorrect or faulty installation;
-modifications,interventionsandmaintenancethat
have not been authorised by the manufacturer;
- use of non-original spare parts or parts that do
not correspond to the specific model;
- total or partial non-compliance with the
instructions provided.
CONDITIONS OF GUARANTEE
• THE EMPLOYER SHALL TRAIN ITS EMPLOYEES ABOUT ALL
THOSE RISKS STEMMING FROM ACCIDENTS, ABOUT THE
USE OF SAFETY DEVICES FOR THEIR OWN SAFETY AND
ABOUT THE GENERAL RULES FOR ACCIDENT PREVENTION
IN COMPLIANCE WITH INTERNATIONAL REGULATIONS AND
WITH THE LAWS OF THE COUNTRY WHERE THE PLANT IS
USED.
• THE BEHAVIOUR OF THE EMPLOYEES SHALL STRICTLY
COMPLY WITH THE ACCIDENT PREVENTION AND ALSO
ENVIRONMENTAL REGULATIONS IN FORCE IN THE COUNTRY
WHERE THE PLANT IS INSTALLED AND USED.
• KEEP YOUR WORK PLACE CLEAN AND TIDY. DISORDER
WHERE YOU ARE WORKING CREATES A POTENTIAL RISK
OF ACCIDENTS.
• ALWAYS KEEP PROPER BALANCE AVOIDING UNUSUAL
STANCE.
• BEFORE USING THE TOOL, ENSURE THERE ARE NOT
DAMAGED PARTS AND THE MACHINE CAN WORK PROPERLY.
• ALWAYS FOLLOW THE INSTRUCTIONS ABOUT SAFETY AND
THE REGULATIONS IN FORCE.
• KEEP THOSE WHO ARE NOT RESPONSIBLE FOR THE
EQUIPMENT OUT OF THE WORK AREA.
• NEVER EXCEED THE MAXIMUM WORKING PRESSURE
INDICATED.
• (IF PROVIDED) NEVER POINT THE SPRAY GUN AT
YOURSELVES OR AT OTHER PEOPLE. THE CONTACT WITH
THE CASTING CAN CAUSE SERIOUS INJURIES.
• IN CASE OF INJURIES CAUSED BY THE GUN CASTING, SEEK
IMMEDIATE MEDICAL ADVICE SPECIFYING THE TYPE OF
THE PRODUCT INJECTED. NEVER UNDERVALUE A WOUND
CAUSED BY THE INJECTION OF A FLUID.
• ALWAYS DISCONNECT THE SUPPLY AND RELEASE THE
PRESSURE IN THE CIRCUIT BEFORE PERFORMING ANY
CHECK OR PART REPLACEMENT OF THE EQUIPMENT.
• NEVER MODIFY ANY PART IN THE EQUIPMENT. CHECK
REGULARLY THE COMPONENTS OF THE SYSTEM.
TRANSPORT AND
UNPACKING
SAFETY RULES
The disposal of packaging materials is a customer’s
competence and must be performed in accordance
with the regulations in force in the country where
the plant is installed and used.It is nevertheless
sound practice to recycle packaging materials in an
environment-friendly manner as much as possible.
Readcarefullyand entirely thefollowing instructions
before using the product. Please save these
instructions in a safe place.
The unauthorised tampering/replacement of one
or more parts composing the machine, the use of
accessories, tools,expendable materialsother than
those recommended by the manufacturer can be a
danger of accident.
The manufacturer will be relieved from tort and
criminal liability.

www.larius.com
6
P31 2:1
REV. 01 - 09/2020 - Cod. 150169
H
Fig. 1H
Pos. Description
1 P31 long pump
2 Air inlet
3 Product outlet
4 Pumping tube
5 200 lt drum
1
2
3
4
5
The high speed of travel of the product in the hose
can create static electricity through discharges
and sparks. It is suggested to earth the equipment.
The pump is earthed through the earth cable of
the supply.
The gun is earthed through the high pressure
flexible hose.
All the conductors near the work area must be
earthed.
Avoid approaching too much to the pump piston
rod when the pump is working or under pressure.
A sudden movement of the piston rod can cause
wounds or finger squashing.
Never spray over flammable products or solvents
in closed places.
Never use the tooling in presence of potentially
explosive gas.
Always check that the product is compatible with
the materials composing the equipment (pump,
spray gun, flexible hose and accessories) with
which it can come into contact. Never use paints
or solvents containing Halogen Hydrocarbons
(as the Methylene Chloride). If these products
come into contact with aluminium parts can
provoke dangerous chemical reactions with risk
of corrosion and explosion.
If the product to be used is toxic, avoid inhalation
and contact by using protection gloves, goggles
and proper face shields.
Take proper safety measures for the protection
of hearing in case of work near the plant.
REPLACE THE PARTS DAMAGED OR WORN.
• (IF PROVIDED) TIGHTEN AND CHECK ALL THE FITTINGS
FOR CONNECTION BETWEEN PUMP, FLEXIBLE HOSE AND
SPRAY GUN BEFORE USING THE EQUIPMENT.
• ALWAYS USE THE FLEXIBLE HOSE SUPPLIED WITH
STANDARD KIT.
• THE USE OF ANY ACCESSORIES OR TOOLING OTHER THAN
THOSE RECOMMENDED IN THIS MANUAL, MAY CAUSE
DAMAGE OR INJURE THE OPERATOR.
• THE FLUID CONTAINED IN THE FLEXIBLE HOSE CAN BE VERY
DANGEROUS. HANDLE THE FLEXIBLE HOSE CAREFULLY. DO
NOT PULL THE FLEXIBLE HOSE TO MOVE THE EQUIPMENT.
NEVER USE A DAMAGED OR A REPAIRED FLEXIBLE HOSE.
The P31 2:1 pump can be used in various ways depending on
the model and conditions of use. Two application examples of
the P31 2:1 pump are shown below.
TYPICAL INSTALLATION

www.larius.com
7
P31 2:1
REV. 01 - 09/2020 - Cod. 150169
Fig. 2H
I
K
J
Pos. Description
1 P31 stubby pump
2 Air inlet
3 Product outlet
4 Pump extension
5 200 lt drum
1
2
3
4
5
SETTING UP AND USE
• Instal the pump in the drum and screw the threaded ring in the
drum;
• Connect the air hose to the manometer situated on the pump;
• Connect the material hose to the pump;
• Aprire il rubinetto del manometro.
FOR STUBBY VERSION
• Put the pump in the support;
• Screw the suction hose and insert it in the drum;
• Carry out the same operations as stated above for long version.
NEW EQUIPMENT WASHING
Each pump is tested in our plant using light mineral oil. I f the
uid which must be pumped isn't compatible with the one used
for the testing then it's advised to ush out the pump before use.
SETTING UP
WORKING
Check all the fittings for connection of the different
components (pump, flexible hose, etc.) before
using the equipment
Always avoid working the machine with the
vacuum pump, without liquid to suct: a pump in
this situation starts to accelerate the stroke till
to reach an excessivespeed and it will seriously
damage the pump.
• Open the air feeding;
• Be sure that the distributing valves are opened;
• Adjust the pressure regulator to obtain from the pump for few
seconds 5 to 20 cycles per minute;
• The pump only needs few strokes to start sucting. Nevertherless,
in a big installation, can be necessary to run the pump for
different minutes, in order to ll all pipes;
• Use always the lowest necessary pressure to obtain the result
required;
• When the pump is used for transfer of feeding operations
without distributing valve, the pump starts working when the
air is supplied;
• In case an air pipe line or a distributing valve is used, release
the valve to exhaust the uid pressure in the pipe.
PROBLEMS AND SOLUTIONS
PROBLEMS
Leaks of materials from packing gland.
SOLUTIONS
Tighten the packing gland. If it's still leaking, replace the packing.

www.larius.com
8
P31 2:1
REV. 01 - 09/2020 - Cod. 150169
L
Fig. 1L
1
2
3
4
5
6
7
3
8
9
10
11
16 17
18
19
20
12
13
14
15
ATTENTION: always indicate code and quantity of each requested detail
COMPLETE PNEUMATIC MOTOR P31 2:1