Dynaset HPW Series User manual

HPW
HYDRAULIC HIGH PRESSURE WATER PUMPS
OPERATING INSTRUCTIONS
HPW 200/30-45 (-ST)
HPW 420/20-50 (-PA)
HPW 40/40-8
HPW 220/50-70 (-PA)
HPW 520/30-85 (-PA)
HPW 90/150-85 (-PA)
HPW 180/90-115 (-PA)
HPW 460/50-115 (-PA)
HPW 130/180-140 (-PA)
HPW 800/30-140 (-LS)
HPW 1600/15-140
HPW 300/300-350
HPW 1200/100-390
PS
TWP
1May 2014
HPW - HIGH PRESSURE WATER PUMPS

1. SAFETY PRECAUTIONS AND WARNING STICKERS 3
2. GENERAL NOTES 4
3. INSTALLATION 4-5
4. HPW INTEGRATION INTO A HYDRAULIC CIRCUIT 5-6
4.1 HPW in system with constant displacement hydraulic pump 5
4.2 Hydraulic system with variable displacement pump 6
5. OPERATION 7
5.1 Pump start-up 7
5.2 Adjusting flow rate and pressure of pumping fluid 7
5.3 Stopping HPW-pump 7
6. BASIC APPLICATIONS OF HPW-PUMP 8-10
6.1 High pressure washing with a spray gun 8
6.1 Pipeline sewer cleaning equipment 9
6.3 Street washing units 9-10
7. HYDRAULIC FLUIDS 11
8. PUMPING FLUIDS 11
9. MAINTENANCE 11
10. PRODUCT DISPOSAL 12
11. TROUBLE SHOOTING 13-15
12. TECHNICAL SPECIFICATIONS 16
13. MANUFACTURER’S LIMITED WARRANTY 17
14. DECLARATION OF CONFORMITY 18
TABLE OF CONTENTS
MAY CHANGE WITHOUT PRIOR NOTICE
2HPW - HIGH PRESSURE WATER PUMPS
May 2014

1E-mail: info @dynaset.com
DYNASET OY, Menotie 3,
FIN-33470 Ylöjärvi, FINLAND Tel.: [phone] Fax: [phone]
MAY CHANGE WITHOUT PRIOR NOTICE
MAY CHANGE WITHOUT PRIOR NOTICE
Operating with DYNASET HPW high pressure pump user has to conform to all safety regulations concerning
pressurized equipment. Hydraulic circuit has a high pressure 210 bar.
EQUIPMENT TECHNICAL CONDITION HAS TO PAY SPECIALATTENTION.
In order to avoid accidents all operators and maintenance personnel must act in compliance with the laws,
regulations and recommendations the high pressure hydraulics, electricity and work safety issued by local
authorities.
EXTERME CLEANLINESS MUST BE MAINTAINED WHEN CARRYING OUT ANY DISSASSEMBLING OR REPAIR OF
HPW-UNIT AND HYDRAULIC SYSTEM. THIS IS CRUCIAL TO ENSURE SAFE, RELIABLE AND LONG-LIFE OPERATION
OF YOUR EQUIPMENT.
The pressure in hydraulic fluid circuit is considerably high and hydraulic system has to maintain regularly.
Especially couplings, valves and hoses have to be tight and clean as well as kept under constant observation.
Check and fix possible leakages of pressure and hot blowouts immediately avoiding user and bystander
injuries.
In order to exclude possible accidents, it is not allowed to clean or inspect HPW unit when hydraulic fluid
circuit is pressurized. Prior to any cleaning, inspection and service hydraulic system of your carrier machine
must be stopped and all hydraulic fluid circuits depressurized.
Wear appropriate clothing and safety equipment such as goggles, ear and eye protection, safety shoes at all
times when operating by the HPW pump. Beware of machinery parts are warm by hot hydraulic oil.
Operators and maintenance personnel must always comply with local safety regulations and precautions in
order to close out the possibility of damages and accidents.
All installation and service of both hydraulic and electric equipment must be performing experienced
personnel only.
Preventing freezing nozzles, water circuit and pipeline. Draining and air flushing have to perform
before ambient temperature reaches 0°C or lower.
SAFETY PRECAUTIONS
WARNING STICKERS
Dynaset dispatch department includes one (1) warning sticker bag per one (1) main product.
Product recipient is obligated to fix determinate warning sticker to Dynaset product.
Attach sticker to visible and appropriate place or close to Dynaset product where it’s easily seen.
Before attaching sticker clean surface with solvent detergent.
READ OPERATING INSTRUCTIONS. BEWARE OF HIGH PRESSURE KEEP FROM FREEZING. USE EAR PROTECTOR AND
SPLATTERS. GLOGGLES.
HPW - HIGH PRESSURE WATER PUMPS
3May 2014

DYNASET HPW-pump is a converter, which transforms actuating fluid power, usually hydraulic oil, into
pumping fluid’s power, which is defined by flow rate and pressure. Actuating power is supplied from hydraulic
system of carrier machine or other installation. Water or any other pumping fluid can be taken from natural
source, reservoir or pressurized supply network.
The patented HPW-pump utilizes the reciprocal motion of hydraulic piston, when two water plungers, flanked
to it, develop pressure in delivery (pressure) line. Hydraulic flow moves the piston assembly until the other
water plunger reaches its extreme position, when changes the incorporated reversal valve direction of
hydraulic flow and, by that, the piston assembly is being set to counter direction. Vacuum is being developed
into pumping fluid’s intake line and positive pressure in delivery line accordingly. Within pumping cycle water
(or other pumping fluid) is being taken by water plungers through intake valves and pumped through pressure
valves into delivery line.
Relation of pumping fluid’s flow rate and pressure to corresponding parameters of hydraulic fluid is linear, as
shown on diagrams below.
When hydraulic pressure and/or flow is under the value needed to achieve the maximum output power of
HPW-pump, the water pressure and flow are decreased respectively without any harm to pump itself.
ATTENTION !
Most of HPW-pumps are self-priming. Specific characteristics of any pump can be verified according to the
technical specification (see last page).
THE DESIGN OF HPW-PUMP IS PROTECTED WITH THE INTERNATIONAL PATENT.
DYNASET HPW-pumps are compact and integrated all-in-one units, designed for both mobile and workshop
installation. HPW-pumps perfectly work installed on excavators, mining machines, tractors, trucks and vans.
In workshop use HPW-pump is accompanied with hydraulic aggregate.
DYNASET HPW-pump can be positioned deliberately, keeping in view following preconditions:
1. Easy service access to the unit should be ensured.
2. Pump should be mounted on sufficiently horizontal surface to enable proper working of leakage detecting
bores, which are found either on bottom surface or side faces of pump housing (depends on model).
Leakage detecting bores are made to the zones, which separate oil and water chambers from each other.
If the draining from leakage detectors exceeds rate of 10 drops per minute, pump sealings should be
replaced. The drain fluid can be water, hydraulic oil or their solution.
You can choose deliberately how to make pump’s installation to your carrier: either fixed or as a quick
release unit. In latter case HPW-pump is easily detached and re-attached to carrier’s hydraulic system with
quick couplings, when pump can be moved from one carrier to another when necessary.
PUMPING FLUID TO HYDRAULIC FLUID RELATION, CONCERNING THEIR FLOW RATES AND PRESSURE.
GENERAL NOTES
INSTALLATION
HYDRAULIC FLUID FLOW Qh
PUMPING FLUID FLOW QW
0HYDRAULIC PRESSURE Ph
PUMPING FLUID PRESSURE Pw
0
Pw_max
Ph_max
Qw_max
Qh_max
HPW - HIGH PRESSURE WATER PUMPS
4May 2014

... INSTALLATION
LEAKAGE DETECTORS IN DIFFERENT HPW-MODELS
Leakage detectors
on bottom surface
HPW 200/30-45
HPW 90/150-85
HPW-pump is to be connected to hydraulic system of carrier machine, as well as to pumping fluid circuit.
HPW can be installed with no particular efforts to system based on either constant or variable displacement
hydraulic pump, as well as to closed hydraulic systems.
1. HYDRAULIC SYSTEM WITH CONSTANT DISPLACEMENT PUMP:
The required oil flow is set by correct dimensioning of the hydraulic pump and keeping the demanded
rotation speed or, alternatively, with pressure compensated 3-way valve.
2. HYDRAULIC SYSTEM WITH VARIABLE DISPLACEMENT PUMP:
.1 In system with OPEN CENTRE the required oil flow is set by DYNASET PRESSURE COMPENSATED
PRIORITY VALVE
.2 In system with CLOSED CENTRE (load sensing system) the required oil flow is set by
DYNASET LS-VALVE kit, which comprises solenoid valve, pressure compensated oil flow limiter
and pressure relief valve.
Leakage detectors
on side faces
INTEGRATION INTO A HYDRAULIC CIRCUIT
HPW IN SYSTEM WITH CONSTANT DISPLACEMENT HYDRAULIC PUMP
INTAKE LINE:
SUCTION HEAD MAX. 3 M
T
P
WP
SHPW
WATER RESERVOIR
PRESSURISED SUPPLY:
MIN. 1,5 BAR
MAX 10 BAR
WATER PRESSURE
UNLOADER VALVE
HIGH PRESSURE TOOL
HPW - HIGH PRESSURE WATER PUMPS
5May 2014

... INSTALLATION
HPW IN SYSTEM WITH VARIABLE DISPLACEMENT HYDRAULIC PUMP
WATER RESERVOIR
PRESSURISED SUPPLY:
MIN 1,5 BAR
MAX 10 BAR
INTAKE LINE:
SUCTION HEAD MAX. 3 M
LOAD SENSING WATER
PRESSURE CONTROL
HIGH PRESSURE TOOL
T
P
WP
S
HPW
HPW HYDRAULIC PORTS:
Pressure P, the pressure line is to be attached to;
Return T, the runback line is to be attached to.
HPW’ WATER PORTS:
INTAKE S, the water supply line is to be attached to;
WATER PRESSURE WP,the delivery (pressure) line is
to be attached to.
WP
S
PT
WP
S
TP
HPW-PUMP WITHOUT WATER
PRESSURE UNLOADER VALVE
ATTENTION !
Check the ports of your HPW-pump and connect it to hydraulic and pumping fluid circuits according to
their markings !
1. If the hydraulic pressure line will be connected by accident to the return port and return line
correspondingly to the pressure port, it will not cause any harm to HPW-pump, however pump will not
operate.
2. Output power of HPW-pump depends on the pressure difference between pressure and return lines.
The more is the pressure in return line, the less is concerned pressure difference and output power of the
pump. The fact should be taken into account when certain number of machines are intended to be joined-up
in series.
3. Since the piston assembly reverses extremely rapidly (refer to the TECHNICAL SPECIFICATIONS), certain
oscillation can be imposed to the return line because of pressure pulsation. In order to reduce both pressure
pulsation and return line oscillation, the flexible hose with textile fabric cord is recommended to be used in
return line to protect from damage low pressure units, such as oil cooler.
4. Prior to connecting HPW-pump to hydraulic circuit, compatibility of used equipment should be ensured.
Hydraulic pressure and flow rate produced by hydraulic circuit should meet values demanded by your
HPW-pump. Refer to the technical specifications.
HPW-PUMP EQUIPPED WITH WATER
PRESSURE UNLOADER VALVE
WP
HPW - HIGH PRESSURE WATER PUMPS
6May 2014

OPERATION
Prior to starting-up the HPW-pump it is checked whether all couplings in hydraulic and pumping fluid circuits
are properly connected and there are no leakages over the equipment.
Ensure that the water tank is refilled and intake line’s strainer/filter is clean. If water (or any other pumping
fluid) is taken from pressurized supply, ensure that the shut-off valve is open.
PUMP START-UP
HPW-pump starts immediately after the hydraulic flow has been put on either with control valve (manual or
solenoid) and/or by pulling the trigger of spray gun.
Immediately after opening the water pressure line, air is being vented out from the pumping fluid circuit and
high pressure washing is about to begin!
DO NOT TRY WITH HAND THE WATER OR AIR COMING OUT FROM HIGH PRESSURE NOZZLE!
The nozzle, attached to a pressure tool, determines the flow rate and pressure of water when operating
parameters of hydraulic circuit meet HPW-pump’s requirements.
In other words, even your HPW-pump fits perfectly to hydraulic system and does well with the job,
dimensioning of the pressure tool should never be underestimated as a very important step for ensuring the
optimal water jet or hydro-demolition power in each application.
ADJUSTING FLOW RATE AND PRESSURE OF PUMPING FLUID
When the HPW-pump is equipped WITH WATER PRESSURE UNLOADER VALVE:
1. The valve afore is for adjusting the pressure and flow rate of water or any other pumping fluid. Boosting
the pressure increases flow rate and vice versa.
2. After closing water pressure line, whereupon the adjusted pressure limit is being reached, water pressure
unloader valve puts the water to free circulation mode.
When the HPW-pump is installed WITHOUT WATER PRESSURE UNLOADER VALVE:
1. Pressure and flow in pumping fluid circuit are adjusted by adjusting corresponding parameters in hydraulic
circuit.
2. In circuits based on constant displacement pump closing the water pressure line opens the pressure relief
valve in hydraulic system. IS TO BE KEPT IN MIND THAT HYDRAULIC FLUID CIRCULATION THROUGH PRESSURE
RELIEF VALVE CAUSES HEATING OF HYDRAULIC SYSTEM!
3. In circuits based on variable displacement hydraulic pump closing the water pressure line adjusts pump’s
swash plate at 0° angle when hydraulic pump produces flow only for self-lubrication and self-flushing.
Pressure control must be fast enough to protect HPW-pump from pressure peaks or the hydraulic system
must be provided with pressure peak limiter.
HPW-pump is halted by shutting off the hydraulic flow. High pressure remains in closed water delivery line,
which should be depressurized to avoid unexpected water discharges. If spray gun or similar tool has been
used, pull the trigger for some time after the pump has halted.
In cold season HPW-pump and pumping fluid pressure line should be dewatered after a working shift. Detach
the intake hose from HPW-pump and run it for a while until all water is moved from water circuit.
ATTENTION! In cold season HPW-pump can be used for circulating the water through water circuit to keep it
unfrozen in transit.
Different water based solutions and special liquids can be used as pumping fluid with HPW-pumps. The only
requirement is that the pump MUST be thoroughly cleaned and flushed with sweet water after the job to
prevent pump and its sealing from oxidation and water valves from seizing. The procedure should be made
even if such a harmless liquid as sea water has been used.
ATTENTION! HPW-pump can be run dry unlimited time without any harm, because self-lubricating sealing and
circulating hydraulic oil prevent the pump from overheating.
STOPPING HPW-PUMP
HPW - HIGH PRESSURE WATER PUMPS
7May 2014

Various high pressure washing and cleaning jobs, such as spray gun washing, pipe and sewer cleaning and
street washing, are typical applications of DYNASET HPW-pumps. As special applications, high pressure dust
suppression, hydro-demolition and high pressure fire-fighting systems are worth to mention. Compact size and
reasonable power demand enable to fit HPW-pump practically to any project, where high pressure water or
other fluid is being used.
Washing power depends on both water pressure and volumetric flow. High pressure method ensures sufficient
water flow at high velocity, offering in that way excellent washing power with exceptionally small water rate
in contrast with traditional low pressure method. HIGH PRESSURE SAVES WATER !
Spray gun is a multipurpose high pressure tool, which is
delivered either with its own HPW-based power kit for running
as stand-alone package, or as optional equipment to another
high pressure system.
Spray gun can be fitted with various nozzles and detergent
injectors depending on your task.
Three basic nozzle types are shown on the picture alongside:
1. Fan nozzle 15 – 65º;
2. Point nozzle;
3. Rotating point nozzle (turbo-nozzle).
HIGH PRESSURE WASHING WITH A SPRAY GUN
HIGH PRESSURE NOZZLE is to be chosen according
to your washing task.
FAN NOZZLE is to the best advantage when quite
big area should be handled in fast and efficient
way.
POINT NOZZLE focuses the maximum impact to a
small area, fitting perfectly in various
hydro-demolitions jobs.
TURBO-NOZZLE combines advantages of both
above nozzle types. It has built-in point nozzle,
which is rotated by the recoil force of the side
water jet. An impact efficiency of turbo-nozzle is
nearly as high as point nozzle’s and area coverage
as big as fan nozzle’s.
123
BASIC APPLICATIONS OF HPW-PUMP
Spray guns for different water outputs, nozzles,
high pressure hoses and wide range of accessories
are available from DYNASET OY and dealers
world–wide.
HPW - HIGH PRESSURE WATER PUMPS
8May 2014

...BASIC APPLICATIONS OF HPW-PUMPS
PIPE AND SEWER CLEANING EQUIPMENT
Equipment kit for opening and cleaning clogged pipelines and
sewers is comprised of following units: DYNASET HPW-pump,
DYNASET hydraulic hose reel, pressure hose of suitable length
and diameter, pipe opening/cleaning multi-jet nozzle head.
1. Unlock the hose reel to enable its free rotating.
2. Put the nozzle head with attached high pressure hose into
pipe you are going to wash.
3. Start the HPW-pump.
The nozzle head penetrates into pipeline due to recoil force
of water jets coming out from nozzles, located on its rear rim.
The water jets push the nozzle head forward and
simultaneously scour the pipe. Additionally, at least one
nozzle, located on the face surface of head unit, jets the
water in forward direction, opening the channel for nozzle
head and water hose.
The piston mode of functioning is a clear advantage of
HPW-pump: reciprocal motion of piston unit develops the
square wave oscillation, which being applied to the water
hose decreases substantially the friction between water hose
and pipe.
In horizontal direction nozzle head is able to reach distance
over 100 m and in vertical pipe—for instance in high-rise
building— it can reach up to 10th floor.
To make the penetration easier, hose reel can be switched on
to retract the water hose for a certain length back and then
released again. This procedure can be repeated as many times
as necessary and is very useful in plugged and/or bended
pipes as well as in pipes of big diameter.
When the endpoint is reached, water hose is wound up to the
hydraulic hose reel, which is powered from the hydraulic
circuit of HPW-pump. At this stage the pipe is actually being
cleaned and washed and all dirt, deposits and scalings,
removed from the pipe by the rearward water jets.
STREET WASHING UNITS
HPW-based DYNASET KPL street washing unit transforms any
suitable motor vehicle into efficient street washing machine.
KPL product range comprises units with power output from 10
up to 125 kW. Actually any commercial vehicle can be used as
carrier — pick-up, truck, tractor, skid steer loader, wheel
loader etc.
DYNASET KPL street washing unit is ultimately light-weight,
WATER SAVING and its washing efficiency is absolutely superior
in comparison to obsolete low pressure street washing
equipment.
Water consumption, related to the washing power, is notably
low, so that the area gets dry almost immediately after having
been washed. Another point is that the smaller water tank
will be sufficient with HPW-pump and re-filling of it takes less
time.
Suitable KPL street washing unit is to be chosen according to
available hydraulic power and your washing task.
Basic KPL equipment kit includes HPW-pump, street washing
pipe (L = 1250—2800 mm) with positioning device and frame,
water tank and all necessary hoses, control valves and
couplings.
Length of street washing pipe as well as number and size of
nozzles, should be with sufficient precision fitted to the water
output of your HPW-pump.
DYNASET Oy offers a comprehensive range of
special nozzles and nozzle heads for pipe cleaning,
ice melting, root cutting etc.
HPW - HIGH PRESSURE WATER PUMPS
9May 2014

When adjusting on-position, the street washing pipe should be brought down horizontally as close as possible
to the roadway. An operator should be careful, though most KPL-types are provided with support wheel in
order to prevent street washing pipe from damage. Street washing pipe should be positioned in relation to
surface to be washed so, that each water jet would meet its adjoiners at a distance of 10—50 mm from it
(refer to the drawing above).
The kind of paving and surface unevenness should be taken into account as well.
It is kept in mind, that positioning the street washing pipe to high would cause washing power loss up to 50 %.
The steering angle of street washing pipe is determined by direction, where the dirt is being moved to.
The angle of 30—40º is proved to be most effective - refer to the above sketches. High pressure water
jets work as dozer blade, moving dirt and cleanings along the street washing pipe to its other end and
further aside.
10 - 50 mm
50 - 150 mm
15 - 30º
Generally, it is recommended to start job from
the highest point of area to be washed.
The dirt and cleanings are to be run directly in
to the waste water channels when cleaning
narrow lanes, or ridged at the driving lane side
to be moved further at next driving and so
forth, until the whole area will be cleaned.
3...
1
2
30 - 40º
WORKING NEXT TO WALL
30 - 40º
WALL
...BASIC APPLICATIONS OF HPW-PUMPS
MOVING DIRT AND
CLEANINGS OUT
FROM THE AREA
STREET WASHING UNITS
HPW - HIGH PRESSURE WATER PUMPS
10 May 2014

HYDRAULIC FLUIDS
PUMPING FLUIDS
Most of liquids, which can be transferred by pumping, can be pumped also with HPW-pump.
Water based fluids and seawater can be pumped without any special arrangements, however the pump MUST
BE FLUSHED AND CLEANED THOROUGHLY after a working shift with clean sweet water. Same rule applies to
pumping of gelating and depositing fluids —after having done your job, flush HPW-pump with clean water or
suitable solvent.
Solvents, fuels and oils can be pumped without any special arrangements.
Fluids with abrasives or high content of solids can be pumped as well, but should be kept in mind, that
HPW-pump’s service lifetime is considerably shortened. Pls. note that DYNASET HDF-pump series is especially
designed for pumping of abrasive fluids.
When HPW-pump is going to be used as a self-priming unit with a special or high viscosity liquid, the flow and
self-priming conditions should be valuated. If the self-priming property can not be reached, pumping liquid is
to be fed with certain pressure (refer to the TECHNICAL SPECIFICATIONS), or the pump should be used at lower
hydraulic flow.
Furthermore, if pumping solution is aggressive to NBR-rubber, special seals must be used.
HPW-models made of special materials or with coated parts are available by request.
MAINTENANCE
Due to small number of moving parts, in normal operating conditions HPW-pump does not require any other
service, except replacement of sealings or occasionally of water valves, which depends on content of
abrasives in pumping fluid, as well as on cleanliness of hydraulic oil.
Check constantly whether the fluid dropping from pump’s leakage detectors is growing and replace sealing in
proper time to exclude intermixing of hydraulic oil and pumping fluid.
To enable the easy surveillance, pump should be kept clean.
WHEN CARRYING OUT ANY DISASSEMBLING OR REPAIR OF HPW-PUMP, ABSOLUTE CLEANLINESS MUST BE
MAINTANED TO ENSURE RELIABLE AND TROUBLE-FREE OPERATION OF YOUR EQUIPMENT.
Wide range of standard hydraulic fluids can be used with the DYNASET hydraulic equipment.
Subject to the operating temperature, following mineral hydraulic oils are recommended:
ISO VG 32 for oil’s operation temperature up to 70 °C;
ISO VG 46 for oil’s operation temperature up to 80 °C;
ISO VG 68 for oil’s operation temperature up to 90 °C.
Synthetic and bio-oils can be used as well if their viscosity characteristics and lubricating efficiency are
corresponding to above mineral oils. Automatic transmission fluids and even engine oils can be used, if they are
allowed to be used in hydraulic system of your carrier machine.
Prior to use special hydraulic fluids a with DYNASET equipment, please be kindly requested to contact nearest
DYNASET representative for an advice.
HPW - HIGH PRESSURE WATER PUMPS
11 May 2014

PRODUCT DISPOSAL
Conform to waste legislation, regulations and recommendations in waste disposal and waste recycling
issued by local authorities.
1. Precondition:
• Product is permanently useless or beyond repair.
• Before transportation get off all used agent (oil, cooling liquid) and dirty filters.
Items requiring special handling can normally be done by authorized waste management facility,
if not:
• Separating the base materials, iron, copper, steel, electronics, removing paint, polyester resin,
and insulation tape and/or plastics residues from all components.
• This ‘waste material’ can now be recycled.
2. Deliver the recycling and waste material to waste management facility.
Note! Customer can send the DYNASET equipment for reuse or recycling to the Dynaset Oy or to
other location determinate by Dynaset representative.
• Customer pays shipping cost.
• Equipment must be adequately packed for shipment.
• Shipment documents must contain purchaser’s name, contact information, equipment type and
serial number.
HPW - HIGH PRESSURE WATER PUMPS
12 May 2014

TROUBLESHOOTING
1.1
HPW-PUMP DOES
NOT WORK
1.1.1
Too small hydraulic flow or
no hydraulic flow at all.
1.1.2
Hydraulic pressure too low.
1.1.3
Hydraulic flow reversed.
1.1.4
Hydraulic piston damaged
mechanically.
1.1.1
Enable or adjust the hydraulic flow.
1.1.2
Adjust the hydraulic pressure.
1.1.3
Check and reconnect hydraulic hoses. Pressure
hose should be connected to P-port and return
hose to T-port.
1.1.4
Replace damaged part.
1.2
HPW-PUMP WORKS,
BUT DOES NOT
DELIVER WATER
FLOW.
Models with water
pressure unloader
valve.
1.2.1
Water intake and pressure
valves are open (jammed
with debris) or damaged.
1.2.2
Regulator’s unloader valve
opens from intake to
pressure.
1.2.1
Check water valves and clean them thoroughly
or replace when damaged.
1.2.2
Check the valve and repair failure.
1.3
HPW-PUMP DOES
NOT RECEIVE
PUMPING FLUID
1.3.1
Intake hose detached or
hose breathes.
1.3.2
Water supply line clogged.
1.3.3
Suction head to high.
1.3.1
Check and fix the hose and connectors.
1.3.2
Check strainer or water filter and clean
thoroughly.
1.3.3
Check the performance with pressurized
water supply when possible.
1.4
WATER PRESSURE
LINE BLOCKED.
Models with water
pressure unloader
valve.
1.4.1
Nozzle clogged.
1.4.2
Regulator’s check valve
damaged, pressure line
blocked .
1.4.1
Check the nozzle and clean thoroughly.
1.4.2
Check the valve and repair failure.
HPW-PUMP DOES NOT PRODUCE WATER FLOW
SYMPTOM CAUSE ACTION
HPW - HIGH PRESSURE WATER PUMPS
13 May 2014

2
WATER FLOW RATE
TOO SMALL
2.1
Insufficient hydraulic flow or
pressure.
2.2
Nozzle of your pressure tool
undersized.
2.3
Pressure loss in delivery hose.
2.1
Adjust the hydraulic flow to the demanded
level at required pressure.
2.2
Verify the nozzle sizing and replace with
proper one.
2.3
Verify the hose sizing and replace with proper
one.
3.
WATER PRESSURE
TOO LOW
3.1
Insufficient hydraulic pressure
or flow.
3.2
Nozzle of pressure tool
oversized.
3.3
Wear-out of nozzle.
3.4
Insufficient water supply.
3.5
Water pressure unloader valve
set too low.
3.1
Adjust the hydraulic pressure to the
demanded level at required hydraulic oil flow.
Pressure loss should be minimized - do not use
hoses of too small diameter or/and of an
excessive length.
3.2
Verify the nozzle sizing and replace with a
proper one.
3.3
Replace the nozzle.
3.4
Check and fix the problem. Use pressurised
water supply if available.
3.5
Check and re-adjust to specification.
4.
INTENCE PULSATING
OF WATER
PRESSURE
4.1
Some of water intake and
pressure valves are open or
damaged.
4.2
Water intake line breathes
causing pump cavitation.
4.3
Water intake line’s diameter
to small, resulting in pump
cavitation.
4.4
Excessive hydraulic flow,
when HPW-pump runs too
fast.
4.1
Check water valves, clean thoroughly or
repair.
4.2
Check water intake line and fix the problem.
4.3
Verify the hose sizing and replace with proper
one.
4.4
Adjust the hydraulic flow to the demanded
level.
TROUBLESHOOTING
HPW - HIGH PRESSURE WATER PUMPS
14 May 2014

5.
CLOSING THE WATER
PRESSURE LINE DOES
NOT DROP PRESSURE
TO FREE
CIRCULATION MODE.
Hydraulic system
starts to run through
the pressure relief
valve, emitting
excessive heat.
Models with water
pressure unloader
valve.
5.1
Insufficient hydraulic
pressure in relation to
pumping fluid pressure,
adjusted with water pressure
unloader valve.
5.2
Defective water pressure
unloader valve.
5.1
Adjust the hydraulic pressure up as much as
necessary to enable proper operation of
water pressure unloader valve.
Note that the maximum hydraulic pressure
should not be overrun !
If boosting the hydraulic pressure is not
possible, the water unloader pressure setting
should be dropped.
5.2
Repair or replace water pressure unloader
valve.
6.
LEAKAGES 6.1
Hydraulic oil leakages.
6.2
Pumping fluid leakages.
6.3
Hydraulic-pumping fluid
commixture dropping from
leakage detecting bores.
6.1
Check the tightness of component mating,
tighten screws.
Replace when necessary sealings of pump’s
mated surfaces.
Check and tighten/replace couplings.
6.2
Check the tightness of component mating,
tighten screws.
Replace when necessary sealings of pump’s
mated surfaces.
Check and tighten/replace couplings.
6.3
If the draining from leakage detectors exceeds
rate of 10 drops per minute, pump’s sealings
should be replaced.
The rule applies to dropping of hydraulic fluid,
pumping fluid and their commixture.
TROUBLESHOOTING
HPW - HIGH PRESSURE WATER PUMPS
15 May 2014

HPW-PUMP OUTPUT CHARACTERISTICS HYDRAULIC POWER REQUIREMENTS
(pumping fluid)
FLOW PRESSURE POWER FLOW PRESSURE
operating maximum
l/min bar kW l/min p, bar bar
HPW 200/30-45 30 200 10 45 185 210
HPW 420/20-50 20 420 14 50 190 210
HPW 220/50-70 50 220 18.5 70 180 210
HPW 520/30-85 30 520 26 85 190 210
HPW 90/150-85 150 90 22.5 85 190 210
HPW 180/90-115 90 180 27 115 190 210
HPW 460/50-115 50 460 38 120 240 250
HPW 130/180-140 180 130 39 140 240 250
HPW 800/30-140 30 800 40 140 210 210
HPW 1200/100-390 100 1200 200 390 350 350
HPW 1600/15-140 15 1600 40 140 230 250
HPW 300/300-350 300 300 150 350 300 310
TECHNICAL SPECIFICATIONS
HPW - HIGH PRESSURE WATER PUMPS
16 May 2014

MANUFACTURER’S LIMITED WARRANTY
1. Warranty coverage
All hydraulic accessories manufactured by
DYNASET OY are subject to the terms and
conditions of this limited warranty. Products are
warranted to the original purchaser to be free
from defects in materials or workmanship.
Exclusions from warranty are explained in item
8.
2. Beginning of warranty period
Warranty period begins from the delivery date of
the product. Delivery is considered to be done
on the date when installation has been
accomplished or purchaser has taken the
product in use. Product is considered as taken in
use at the date when DYNASET OY has delivered
the product to purchaser, unless separately
agreed otherwise by written agreement.
3. Warranty period
Warranty period is twenty four (24) months
based on maximum of 2000 hours usage during
this time period. In cases where the system is
provided complete with certain special
components (e.g. drive unit), those components
are considered as a subject to their
manufacturer’s warranty.
4. Warranty procedures
Immediately upon identifying a problem which
purchaser believes to be a failure subject to the
product’s limited warranty, purchaser must
contact primary to the seller of the product.
Contact must be made as soon as possible, latest
thirty (30) days after the problem was
identified. Seller and/or manufacturer technical
staff determines the nature of the problem
primarily by phone or e-mail. Purchaser commits
to give necessary information and to perform
routine diagnostic procedures in order to
determine the nature of the problem and
necessary procedures.
5. Warranty repairs
If the product is found to be defective during
the warranty period, DYNASET OY will, at its
option, either repair the product, author it to be
repaired at its authorized workshop or exchange
the defective product. If the product must be
repaired elsewhere than premises of DYNASET
OY or authorized workshop, all costs excluded
from this warranty (traveling and waiting hours,
daily allowance, traveling expenses and
uninstallation/reinstallation costs) will be
charged from the purchaser.
If the problem is not covered by this limited
warranty, DYNASET OY has the right to charge
purchaser of troubleshooting and repairing.
6. Delivery terms of warranty repair
If the product is found possible to be defective
under this limited warranty and it needs to be
repaired, DYNASET OY gives Warranty Return
Number (WRN). Items being returned must be
shipped, at the purchaser’s cost, adequately
packed for shipment, to the DYNASET OY or to
other location authored by DYNASET OY.
Shipment documents must contain:
- Purchaser’s name and contact information
- Receipt of original purchase
- WRN code
- Problem description
7. Warranty of repaired product
Warranty period of the product repaired under
this limited warranty continues to the end of
original warranty period.
8. Exclusions from warranty
This warranty shall not apply to:
a. Failures due to normal wear and tear,
improper installation, misuse, abuse, negligence,
purchaser selection of improper product to intended
use, accident, improper filtration of hydraulic oil or
intake water or lack of maintenance
b. Cost of maintenance, adjustments,
installation or startup
c. Coating, hydraulic oil, quick couplings and
interconnection hoses (internal or external to
system assemblies)
d. Products altered or modified in a manner
not authorized by DYNASET OY in writing
e. Products which have been repaired during
warranty period by others than DYNASET OY or its
authorized workshop
f. Costs of any other damage or loss, whether
direct, indirect, incidental, special or consequential,
arising out of the use of, or the inability to use, the
product
g. Telephone or other communications expense
h. Product that is used in exceptional
conditions, considered to cause excessive wear and
tear
i. Faults caused by nature phenomenon’s like
flood, thunder, etc.
© DYNASET OY, all rights reserved
HPW - HIGH PRESSURE WATER PUMPS
17 May 2014

EC DECLARATION OF CONFORMITY
We hereby declare that the below-reference product design, structure and our
manufacture form fulfills relevant, fundamental safety and health requirements
with the provisions in the Council Directive on mutual approximation of laws of the
Member States on the safety of machines.
- Machine directive 2006/42/EC
- Directive 97/23/EC European standards Pressure equipment.
- LVD directive 2006/95/EC
Apply conformity standards:
-CEN EN ISO 4413: EN ISO 4413:2010
Hydraulic fluid power - General rules and safety requirements for systems
and their components.
If device has changed by someone other than at the hands of manufacturer or his
permission, this declaration is not valid.
PRODUCT: HIGH PRESSURE WATER PUMP
TYPE NUMBERS: HPW40/40-8-xxxxxxxxxx-xxxxxxxxxx-xxxxxxxxxx,
HPW90/150-85-xxxxxxxxxx-xxxxxxxxxx-xxxxxxxxxx,
HPW130/180-140-xxxxxxxxxx-xxxxxxxxxx-xxxxxxxxxx,
HPW180/90-115-xxxxxxxxxx-xxxxxxxxxx-xxxxxxxxxx,
HPW200/30-45-xxxxxxxxxx-xxxxxxxxxx-xxxxxxxxxx,
HPW220/50-70-xxxxxxxxxx-xxxxxxxxxx-xxxxxxxxxx,
HPW300/300-350-xxxxxxxxxx-xxxxxxxxxx-xxxxxxxxxx,
HPW420/20-50-xxxxxxxxxx-xxxxxxxxxx-xxxxxxxxxx,
HPW460/50-115-xxxxxxxxxx-xxxxxxxxxx-xxxxxxxxxx,
HPW520/30-85-xxxxxxxxxx-xxxxxxxxxx-xxxxxxxxxx,
HPW800/30-140-xxxxxxxxxx-xxxxxxxxxx-xxxxxxxxxx,
HPW1600/15-140-xxxxxxxxxx-xxxxxxxxxx-xxxxxxxxxx
YLÖJÄRVI 26.07.2012
DYNASET Oy
Timo Nieminen
R&D Manager
HPW - HIGH PRESSURE WATER PUMPS
18 May 2014

NOTES
HPW - HIGH PRESSURE WATER PUMPS
19 May 2014