WALPOL WNG-S1 User manual

Version 6.3
B06
Grease separator
WNG-S1 + WNG-S2
Assembly and operating instructions

2
1. General information 3
1.1. Note symbols 3
2. Important safety instructions 3
2.1. General information (extract from DIN EN 1825-2) 3
2.2. Technical regulations to be observed: 4
2.3. Personnel 4
2.4. Personal protective equipment 5
2.5. Foreseeable misuse 5
3. Warranty 5
4. Delivery, transport, storage 5
5. Description 6
5.1. Grease separator WNG-S1/S2 6
5.2. Grease separator data 6
5.3. Intended use 7
6. Installation 7
6.1. Installation location / prerequisites 7
6.2. Installation 8
6.3. Backflow-free installation 8
6.4. Ventilation pipe 8
6.5. Initial filling and pressure test 8
7. Operation 8
7.1. Foreseeable misuse 9
7.2. Liability 9
7.3. Components and accessories are designed exclusi-
vely for this product. 9
7.4. Violations 9
7.5. Dangers emanating from the product 9
Content
8. Emptying 10
8.1. Manual (without direct disposal pipe) 10
8.2. Emptying with direct disposal pipe 10
9. Cleaning 10
10. Maintenance 10
10.1. Daily tests (recommendation) 10
10.2. Weekly inspections (recommendation) 11
10.3. Annual maintenance 11
10.4. 5-Annual general inspection 11
11. Decommissioning/storage 11
12. Operating log 11
13. Declaration of performance 14
13.1. WNG-S1 14
13.2. WNG-S2 14
14. EU Declaration of Conformity 15
15. Expert opinion 17
15.1. Grease separator WNG-S1 17
15.2. Grease separator WNG-S2 21

3
1. General information
For reasons of clarity, these operating instructions do not contain all detailed information on the machine and cannot take
into account every conceivable case of setting, operation or maintenance.
If you require further information or if problems occur that are not listed in the operating instructions, please contact our
customer service in confidence. We reserve the right to make changes in the interest of technical progress!
1.1. Note symbols
Danger
Immediate hazard
Failure to observe the warning will result in immedi-
ate death or serious injury.
Caution
Low-risk hazard
Failure to observe the warning may result in
moderate injury.
Warning
Potential hazard
Failure to observe the warning may result in death or
serious injury.
Important
Danger with risk of damage to property
Failure to observe the warning may result in
damage to property.
Note
Useful information and instructions
2. Important safety instructions
Planners, system builders and operators are responsible for proper installation and operation in accordance with the inten-
ded use.
• Read the operating instructions completely and carefully.
• Operating instructions and applicable documents must be kept with the grease separator. They must always be
available at the place of use.
• Local and national laws and regulations must be observed and complied with.
• Take into account the system-relevant conditions and requirements of the system manufacturer or system builder.
• The grease separator may only be used if it is in perfect condition.
• The generally prescribed electrical and mechanical protective devices must be provided.
• Secure the installation site and the premises against access by unauthorised persons during installation, electrical
connection, commissioning, troubleshooting and maintenance.
• Ensure that all warning labels on the grease separator are complete and legible.
• This appliance is not intended for use by persons (including children) with reduced physical or mental capabilities,
or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the
appliance by a person responsible for their safety.
• Children must not play with the appliance.
2.1. General information (extract from DIN EN 1825-2)
• Only waste water containing fats and oils of vegetable and animal origin may be discharged into grease separators.
• Existing drainage pipes must be checked for suitable connection height.
• The materials of the inlet and outlet pipes must comply with DIN EN 12056 and be resistant to the waste water
according to DIN EN 1825-2. The required pipe cross-section depending on the nominal separator size must be
observed.
• The waste water must be fed to the separator system in a free fall. If the still water level of the separator is below the
backflow level (see EN752-2), drainage must be via a lifting unit.
• To prevent grease build-up in the feed pipes to the grease separator, they must be laid with a gradient of at least 2%
(1:50) and must be easy to clean.

4
2.2. Technical regulations to be observed:
• DIN 1986 Drainage systems for buildings and land, Part 30. 100
• DIN EN 752 Drainage systems outside buildings. Parts 1-7
• DIN EN 1825 Separator systems for grease, Part 2
• Draft DIN 4040, Part 100
• DIN EN 12056 Gravity drainage systems inside buildings, Parts 1-5
• DIN 1988 Technical regulations for drinking water installations
Warning
The machine/system described in the operating instructions has been built according to the latest state of the art and
is safe to operate. It complies with the applicable EC directives. Danger points have been secured in accordance with
the accident prevention regulations. However, the machine/plant can be dangerous if it is used by untrained personnel
improperly or for purposes other than those for which it is intended. Danger to life and limb, danger to the machine/
system and danger to the efficient operation of the machine may then arise.
2.3. Personnel
The grease separator may only be operated by qualified, instructed and trained personnel. These persons must know the
relevant safety regulations in order to recognise and avoid possible dangers. The individual actions and qualifications can be
found in Table 1 Qualification.
Danger
Untrained, unqualified or uninstructed personnel must not operate the machine/system!
The personnel for operation, maintenance and repair must have the appropriate qualification for this work and be familiar
with the installation, operating and maintenance instructions, in particular with regard to the instructions contained therein
and the applicable regulations on occupational safety and accident prevention.
Table 1 Qualification
Activities Person Qualification
Design, operational changes Planner Knowledge of building and building services engineering,
assessment of waste water engineering applications.
Design of grease separator systems.
Normative requirements and regulations
Installation and assembly Skilled
workers
Safe handling of machines and tools
Laying and connecting pipes and connections
Plumbing and electrical installation
Operational monitoring, daily,
weekly inspections
Owner,
Operator
No specific requirements
Monthly inspection Qualified
persons
Approved waste disposal company
Annual maintenance Qualified
persons
"Qualified persons" in accordance with DIN -*
General inspection before
commissioning and every  years
Qualified
persons
"Qualified persons" in accordance with DIN -**
Disposal of grease separator
systems
Qualified
persons
Approved disposal company
*Definition of "Qualified persons" in accordance with DIN -:
Persons of the operator or commissioned third parties who, on the basis of their training, knowledge and experience
gained through practical activity, ensure that they carry out assessments or tests in the relevant subject area in a
proper manner are considered to be competent.

5
**Definition of "qualified persons" according to DIN -:
Qualified persons are employees of operator-independent companies, experts or other institutions who demonstrably
have the necessary expertise for the operation, maintenance and inspection of separator systems to the extent speci-
fied here as well as the technical equipment for testing separator systems. In individual cases, in the case of larger
operating units, these inspections may also be carried out by internally independent experts of the operator who are not
bound by instructions with regard to their area of responsibility and who have the same qualifications and technical
equipment.
Note
The operator must ensure that the personnel have been instructed in the
operation and have understood the operating instructions.
2.4. Personal protective equipment
Protective equipment must be worn during all work in the vicinity of the grease separator.
• Protective clothing
• Safety shoes
• Protective gloves
• Safety goggles
2.5. Foreseeable misuse
• The grease separator may only be operated by someone who has read and understood the operating instructions.
• Persons under the influence of medication or other drugs may neither operate nor maintain the system or carry out
any other activities on it.
3. Warranty
See the Walpol general terms and conditions catalogue or view the homepage www.walpol.eu
Unauthorised modifications to the machine exclude the manufacturer's liability for any resulting damage. If the machine
is operated improperly, not as intended or by personnel who have not been instructed or trained, the following dangers,
among others, may arise:
• Danger to life and limb,
• Danger to the machine and other assets of the user,
• Danger to the efficient operation of the machine
In order for warranty claims to be asserted, the products must be connected properly and operated and used in accordance
with the data sheets. Another prerequisite is a fully completed operating log, which can be requested from Walpol in the
event of a warranty claim. The operating log is an integral part of this document, the maintenance plan must be drawn up
by the operator.
4. Delivery, transport, storage
Safety instructions
Warning: Suspended loads
• Protective equipment must be worn during all work in the vicinity of the grease separator, see 2.4 Personal protective
equipment. 2.4 Personal protective equipment,
• Never step under a suspended load.
• Ensure that no one is under a suspended load.
Delivery
Each grease separator leaves our factory in mechanically perfect condition. It is recommended that the grease separator is
transported to the installation site in its original packaging.
Check delivery
• Check the packaging for transport damage. Any damage must be noted in the cargo manifest.
• Check that the delivery is complete.

6
Unpacking
Warning
When removing the transport packaging, there is a risk of damage from sharp edges, nails, staples, splinters, etc.
• Unpack the grease separator carefully.
• Check the grease separator for obvious transport damage.
• Do not remove the packaging until just before installation.
• Wear the protective equipment for any work in the vicinity of the grease separator, see . Personal protective
equipment. . Personal protective equipment
Transport
Safety instructions
Caution: Careless loading or unloading can damage the grease separator.
• Carry out loading or unloading carefully.
• Use lifting equipment designed for the load.
• Observe the transport arrows on the packaging.
• The packaging is only used as transport protection and must not be used for lifting.
Storage
• Store the grease separator in its original packaging in a dry, dust-free place protected from the weather.
• Avoid exposure to extreme heat or cold.
5. Description
5.1. Grease separator WNG-S1/S2
A grease separator is used wherever waste water containing grease is to be expected. The grease separator separates
grease, oil and sludge from the waste water. Thanks to the flushing and disposal device, the grease separator can be dis-
posed of with virtually no odour nuisance, as the odour-tight system does not have to be opened for this purpose. The hose
of the disposal vehicle can be connected to the permanently installed disposal line, which is routed to an easily accessible
point. The separated grease is pumped directly into the disposal vehicle. This eliminates the time-consuming and unhy-
gienic laying out of the disposal hoses through utility and storage rooms (e.g. food areas). In addition, there is no odour
nuisance.
5.2. Grease separator data
Type WNG-S1
Nominal size 1
Sludge trap 100 litres
Grease separator chamber 120 litres
Weight 103 kg
600
1150
850
1015

7
Unpacking
Warning
When removing the transport packaging, there is a risk of damage from sharp edges, nails, staples, splinters, etc.
• Unpack the grease separator carefully.
• Check the grease separator for obvious transport damage.
• Do not remove the packaging until just before installation.
• Wear the protective equipment for any work in the vicinity of the grease separator, see . Personal protective
equipment. . Personal protective equipment
Transport
Safety instructions
Caution: Careless loading or unloading can damage the grease separator.
• Carry out loading or unloading carefully.
• Use lifting equipment designed for the load.
• Observe the transport arrows on the packaging.
• The packaging is only used as transport protection and must not be used for lifting.
Storage
• Store the grease separator in its original packaging in a dry, dust-free place protected from the weather.
• Avoid exposure to extreme heat or cold.
5. Description
5.1. Grease separator WNG-S1/S2
A grease separator is used wherever waste water containing grease is to be expected. The grease separator separates
grease, oil and sludge from the waste water. Thanks to the flushing and disposal device, the grease separator can be dis-
posed of with virtually no odour nuisance, as the odour-tight system does not have to be opened for this purpose. The hose
of the disposal vehicle can be connected to the permanently installed disposal line, which is routed to an easily accessible
point. The separated grease is pumped directly into the disposal vehicle. This eliminates the time-consuming and unhy-
gienic laying out of the disposal hoses through utility and storage rooms (e.g. food areas). In addition, there is no odour
nuisance.
5.2. Grease separator data
Type WNG-S1
Nominal size 1
Sludge trap 100 litres
Grease separator chamber 120 litres
Weight 103 kg
600
1150
850
1015
Type WNG-S2
Nominal size 2
Sludge trap 200 litres
Grease separator chamber 482 litres
Weight 143 kg
1790
1688
1020
1490690


5.3. Intended use
The separator system is intended exclusively for the separation of saponifiable oils and fats of vegetable and animal origin.
Any other use is considered improper. The manufacturer is not liable for any resulting damage; the risk for this is borne
solely by the user!
Animal and vegetable oils and fats must not be discharged into the public disposal systems and into bodies of water, as they
cause cross-sectional constrictions and blockages of the disposal pipes when cold. Furthermore, after a short decomposi-
tion time, fatty acids are formed, which lead to unpleasant odours and attack pipes and structures of the drainage systems.
The solidified layer of grease on the water surface also inhibits the necessary oxygen supply to water bodies and sewage
treatment plants. In addition, DIN1986 Part 1 requires the retention of harmful substances. For these reasons, grease se-
parators must be provided and disposed of appropriately. The temperature in the separator should be as low as possible. An
increase of 10°C halves the separation efficiency.
Compliance with the operating, maintenance and servicing conditions prescribed by the manufacturer is also part of the
intended use.
6. Installation
6.1. Installation location / prerequisites
Outdoor installation in frost-free rooms
Before installing the grease separator, check the following:
Separator systems should be installed near the points where the waste water is produced. Furthermore, the suction
connection should be easily accessible for cleaning vehicles.
• The system should not be installed near recreation rooms, especially not near windows or ventilation openings, so that
odour nuisance is avoided
• It should be easily accessible for cleaning vehicles
• Room with good ventilation or/and aeration as well as level and sufficiently load-bearing installation surface (observe
stability/ceiling load)
• Room temperature at least 15°C.
• Sealed floor covering with integrated drainage point.
• Hot and cold water connection
• Room height at least 60 cm higher than the grease separator system so that the inspection cover can be opened during
cleaning work.
• Free working space, at least 1 m, in front of the grease separator system.
• The waste water must be fed to the grease separator system in a free fall
• Inlet with calming section of at least 1 m (gradient 1:50).

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• If the inlet pipe is longer than 10 m, it must be vented separately.
• Foreign objects (cutlery, crown caps, mustard bags, bones, etc.) disturb the separation process.) interfere with the
operation of the separator
• In areas at risk of flooding, the system can be secured against floating
6.2. Installation
• Install the inlet and outlet
• Make pipe connections to the building installation at the inlet and outlet.
• Ensure that the seals are sufficiently greased.
• The pipe materials used should be resistant to animal and vegetable fats, oils and their degradation products (seal
made of NBR, high temperatures).
A device for sampling and inspection must be installed directly at the outlet of the separator and before it is mixed with
other waste water (already included in the scope of delivery, depending on the version)
The sampling point or device of the - The sampling point or device of the separator system must be freely accessible and
arranged in such a way that only waste water that has flowed through the separator system is sampled
6.3. Backflow-free installation
Separator systems for grease with a still water level below the backflow level must be drained via downstream lifting units
• If necessary, install a direct disposal pipe. Install direct disposal pipe - The disposal pipe intended for emptying should
have a diameter of at least 50 mm clear width
• The choice of pipe material for the disposal pipe should be made according to the wastewater contents (extremely high
solids content) and the special operating situation (overpressure / underpressure).
• The disposal pipe should be laid in a steadily rising manner from the grease separator to the transfer point to the
disposal vehicle. Changes in the direction of the pipe due to 90° bends should be made with a large radius if possible
• The disposal pipe must be able to be sealed odour-tight (e.g. Storz B-coupling)
• Tension-resistant connections of the individual pipes and fittings must be used
6.4. Ventilation pipe
• The inlet and outlet pipes at grease separator systems must be sufficiently ventilated
• For this purpose, the inlet pipe must be routed above the roof as a ventilation pipe. All connection lines longer than 5
m must be vented separately
• No other ventilation systems may be connected to these ventilation lines
• The ventilation line of the supply line and, if necessary, of the grease separator can be combined to form a collective
ventilation system
6.5. Initial filling and pressure test
• Ensure that there are no foreign substances or impurities in the grease separator.
• Fill the entire grease separator system completely with water.
• Carry out a pressure test by opening both inspection covers.
• Seal the drain and inlet with suitable means.
• Fill the grease separator system completely with water and make sure that there are no leaks.
• Restore the functionality of the drain and inlet.
The machine is now ready for operation.
7. Operation
When operating the machine outside of Germany, the safety regulations in the country of operation also
apply.
Relevant regulations and rules must be observed:
• Accident prevention regulations
• Other generally recognised safety, occupational health and road traffic regulations

9
Important
Observe the rules for safe and professional work
In addition to the operating instructions and the binding regulations for accident prevention applicable in the country
and place of use, the recognised technical rules for safe and professional work must also be observed.
The permissible loads of the grease separator system must not be exceeded!
7.1. Foreseeable misuse
The grease separator may only be operated by someone who has read and understood the operating instructions.
Persons under the influence of medication or other drugs may neither operate
nor maintain the system or carry out other activities on it.
7.2. Liability
With the acceptance of the machine, the operator confirms that the supplier has fulfilled all duties of care within the
scope of what is possible and reasonable.
We are liable for defects in the delivery according to the conditions agreed in the order confirmation.
Defects may only be remedied by skilled personnel.
We are not liable for safety defects that are not yet identifiable according to the current state of technology.
Recommendation
7.3. Components and accessories are designed exclusively for this product.
Our liability is limited to damage that occurs during intended use.
Only original parts are to be selected when procuring spare and wear parts.
We expressly draw attention to the fact that original parts and accessories not supplied by us have also not been tested
and approved by us. The installation and/or use of such products can negatively change constructively specified properties
of the system and thereby impair active and/or passive operational safety.
The following excludes our liability for consequences:
7.4. Violations
• of safety instructions,
• of the instructions on special dangers,
• of the prohibition of unauthorised conversions and modifications.
If damage occurs within the warranty period, the cause of which is doubtful and for which you would like to make a war-
ranty claim, please notify WALPOL immediately and await further instructions.
Until the cause has been clarified or released by us, the grease separator system is to be left in the condition in which it
was placed by the damage.
Irrespective of this, you must first secure the accident site in order to avoid consequential damage.
Prohibition of unauthorised modifications and conversions
The machine may - without our express consent - not be modified in terms of design or safety. Any unauthorised modifica-
tion in this sense excludes liability on our part.
7.5. Dangers emanating from the product
• Danger of slipping when emptying the system
During cleaning work, greasy liquid and/or grease may wet the floor. This poses a risk of slipping. Remove leaked liquid
and/or grease immediately and wear suitable footwear.
• Risk of infection on contact with waste water
The waste water contains bacteria. There is a risk of infection if it comes into contact with mucous membranes, eyes,
wounds or is absorbed into the body. Immediately clean parts of the body that have come into contact with waste water,
and change contaminated clothing. Wear personal protective equipment.

10
8. Emptying
8.1. Manual (without direct disposal pipe)
• To empty the grease separator, first open the container lid. Emptying is then carried out by extracting the entire grease
separator contents via the suction hose of the disposal tanker.
• The grease separator must be completely cleaned after emptying and then refilled with fresh water up to the overflow.
• For emptying the grease separator system, a cycle must be selected in which neither the storage capacity of the
sludge trap nor that of the grease separator is exceeded. Irrespective of this, the grease separator system must be
emptied and cleaned at least once a month (preferably every two weeks) in accordance with DIN 4010-100.
• If the maximum storage capacity of the grease and/or sludge trap is reached prematurely, the grease separator must
be completely emptied and cleaned beforehand.
8.2. Emptying with direct disposal pipe
(may be installed on site)
• If necessary, install direct disposal pipe. Install direct disposal pipe - The disposal pipe intended for emptying should
have a diameter of at least 50 mm clear width
• The choice of pipe material for the disposal pipe should be made according to the wastewater contents (extremely high
solids content) and the special operating situation (overpressure / underpressure).
• The disposal pipe should be laid in a continuously rising manner from the grease separator to the transfer point to the
disposal vehicle. Changes in direction of the pipe due to 90° bends should be made with a large radius if possible (if
necessary, this should be provided by the customer)
• The disposal pipe must be able to be sealed odour-tight (if necessary, this should be provided by the customer).
• Tension-resistant connections of the individual pipes and fittings must be used
• Open the inspection cover.
• Connect the suction hose of the disposal vehicle to the direct disposal pipe (connection and coupling must be provided
by the customer)
• Empty the system tank (suction).
• When the system tank has been emptied by approx. one third, fill the hot water tank with hot water. When the system
tank has been emptied by approx. one third, open the hot water inlet.
• When the system tank has been completely emptied, remove the suction hose from the disposal vehicle and switch off
the hot water inlet.
• Clean the system tank (spray it out).
9. Cleaning
Cleaning the inside of the tank:
• Open the tank lid
• Thoroughly clean all pipes (inlet, outlet with integrated sampling point, ventilation pipes) with a high-pressure cleaner
• Thoroughly clean the inside of the tank, also using a high-pressure cleaner.
Exterior cleaning of the tank:
• Depending on the degree of soiling, use a high-pressure cleaner
• For final cleaning, the grease separator system is rubbed down from the outside with stainless steel care oil.
• After the above work has been carried out, the system must be filled with water before being put back into operation
and then checked for leaks.
10. Maintenance
Required qualifications for inspection and maintenance, section 2.3 "Personnel".
Record tests, maintenance and test results in the operating log:
• Inspections by the operator
• Sampling
• Maintenance and general inspections
• Disposal (emptying and cleaning)
ATTENTION If defects are found during the tests, the grease separator system may not be put back into operation until
these have been rectified
10.1. Daily tests (recommendation)

11
Tests by the operator:
• Remove impurities in the coarse trap of the inlet pipe.
10.2. Weekly inspections (recommendation)
Inspections by the operator
• Check grease separator, connections, mechanical and electrical components for external damage.
• Remove coarse floating matter on the water surface
• For grease separators with filling unit: Check water seal in odour trap.
Any defects found must be rectified immediately. The work carried out and the findings must be documented in the opera-
ting log.
10.3. Annual maintenance
Checks (after previous emptying and cleaning) by a competent person before
• Check the visible interior areas, built-in parts by visual inspection for visible damage and conspicuous features.
• Check the function of the suction device and the free outlet of the filling unit in accordance with DIN EN 1717. Clean
the outlet of the filling unit.
• Check the cover of the grease separator, in particular the condition and tightness of the seal.
• Cleaning the sampling device
Any defects found must be rectified immediately. The work carried out and findings must be documented in the operating
log.
10.4. 5-Annual general inspection
Inspections (after previous emptying and cleaning) by a competent person before commissioning and thereafter every 5
years at the latest:
The client must obtain proof of the qualification of the competent person required to carry out the general inspection.
• Check the dimensioning of the grease separator system.
• Check the structural condition and leak tightness of the grease separator system in accordance with DIN 4040-100.
• Check the visible interior areas, built-in parts by visual inspection for visible damage and conspicuous features.
• Check the proper design of the ventilation pipe of the grease separator system as a ventilation pipe above the roof in
accordance with DIN EN 1825-2.
• Check the completeness and plausibility of the entries in the operating log,
• Check the completeness of the required approvals and documents, e.g. permits, drainage plans, operating
instructions.
If defects are identified by the specialist during the general inspection, they must be rectified within the specified period of
time and reported in the operating log.
11. Decommissioning/storage
• The machine must be cleaned before storage
• Bare surfaces of machine components must be treated with corrosion protection.
• The transport locks must be attached. Moving machine parts must be fixed
• The grease separator and its components must be stored in a dry, uniformly air-conditioned room, never outdoors
• The required floor load-bearing capacity in accordance with the weights of the machine components and individual
parts must be observed
12. Operating log
Grease separator series WNG-S1/S2
The respective times and results of the self-checks carried out must be recorded in the operating log, main-
tenance and inspections, the disposal of removed contents (file the disposal company's removal records) and

12
the rectification of any defects found.The operating log and test reports must be kept by the operator and pre-
sented on request to the locally competent supervisory authorities or the operators of the downstream munici-
pal waste water systems.
Note
Timely and regular emptying, cleaning and maintenance of the grease separa-
tor system guarantees proper functioning.
Important
Emptying and cleaning intervals
Kitchen fats and oils form fatty acids within a very short period of time, which must not be allowed to enter the sewage
system. According to the the emptying and cleaning intervals must be set so that the storage capacity of the separator
and the sludge trap is not exceeded.
Unless otherwise stipulated by ordinances and other requirements, cleaning and maintenance must be carried
out in accordance with the operating instructions.
Maintenance must be carried out by experts.

13
Operating log
Grease separator TYPE S1/S2
Commissioning Company: Date:
No. Date
Emptying/name
Disposal company
Maintenance/self-inspection
(according to instructions)
Signature
(disposal company)

14
13. Declaration of performance
13.1. WNG-S1
1. Unique identification code of the product type:
• Stainless steel grease separator systems with integrated sludge trap (see annex to the declaration of performance)
2. Type, batch or serial number or other mark identifying the construction product in accordance with Article 11(4):
• Grease separator type S1
3. Intended use of the construction product as intended by the manufacturer in accordance with the applicable har-
monised technical specification:
• Separator system for the separation of fats and oils of vegetable and animal origin from waste water due to gravity
without the action of external energy.
4. Name, registered trade name or registered trade mark and contact address of the manufacturer:
Walpol GmbH
Benzstr. 13
45891 Gelsenkirchen
5. If applicable, name and contact address of the authorised representative entrusted with the tasks referred to in Article
12(2):
• not applicable
6. System or systems for the assessment and verification of constancy of performance of the construction product, as
referred to in Annex V:
• Survey OLAN Projects of 17.02.2021
7. In the case of the declaration of performance concerning a construction product covered by a harmonised standard:
• Factory production control
• Survey OLAN Projects of 17. 02.2021 8.02.2021
8. In the case of the declaration of performance relating to a construction product for which a European Technical As-
sessment has been issued:
• not applicable
9. Declared performance:
Essential characteristics Performance Harmonised technical specification
Fire performance Passed
EN -. :
Liquid tightness Passed
Efficacy Passed
Load bearing capacity Passed
Durability Passed
13.2. WNG-S2
1. Unique identification code of the product type:
• Stainless steel grease separator systems with integrated sludge trap (see annex to the declaration of performance)
2. Type, batch or serial number or other mark identifying the construction product in accordance with Article 11(4):
• Grease separator type S2
3. Intended use of the construction product as intended by the manufacturer in accordance with the applicable har-
monised technical specification:
• Separator system for the separation of fats and oils of vegetable and animal origin from waste water due to gravity
without the action of external energy.
4.Name, registered trade name or registered trade mark and contact address of the manufacturer:
Walpol GmbH
Benzstr. 13
45891 Gelsenkirchen

15
5. If applicable, name and contact address of the authorised representative entrusted with the tasks referred to in
Article 12(2):
• not applicable
6. System or systems for the assessment and verification of constancy of performance of the construction product
as set out in Annex V:
• Expert opinion ITB Mark of verification 01130/19/Z00NZK
7. In the case of the declaration of performance which relates to a construction product covered by a harmonised
standard:
• Factory production control
• Survey ITB Mark of conformity 01130/19/Z00NZK
8. In the case of the declaration of performance relating to a construction product for which a European Technical
Assessment has been issued:
• not applicable
9. Declared performance:
Essential characteristics Performance Harmonised technical specification
Fire behaviour Passed
EN -:
Liquid tightness Passed
Efficacy Passed
Load bearing capacity Passed
Durability Passed
10. The manufacturer alone is responsible for drawing up this declaration of performance.
Signed for the manufacturer and on behalf of the manufacturer by:
Place: Gelsenkirchen
Date: 01.12.2021
Maximilian Girnus
Managing Director WALPOL GmbH
14. EU Declaration of Conformity
According to Machinery Directive 2006/42/EC Annex II 1A.
The manufacturer of the machine
Manufacturer: Walpol GmbH
Benzstr. 
 Gelsenkirchen
hereby declares that the following product
Product designation: Separator system for grease made of
stainless steel AISI  with integrated
sludge trap
Type designation: WNG-S NS 
WNG-S NS 
complies with all the relevant provisions of the above-mentioned directive, including the amendments in force at the
time of declaration.

16
Other applicable directi-
ves:
Construction Products Directive //EEC
the following harmonised standards have been applied:
EN ISO : Safety of machinery - General principles for design - Risk
assessment and risk reduction
EN ISO -: Safety of machinery - Safety-related parts of control systems
- Part : General principles for design
EN ISO -: Safety of machinery - Electrical equipment of machines -
Part : General requirements
EN ISO -: Separator systems for grease - Part : Principles of const-
ruction, operation and testing, marking and quality control
The stainless steel material used complies with the requirements of reaction to fire class A1.
The designated separator system is intended for the separation of fats of vegetable and/or animal origin from waste
water by means of gravity for the protection of drainage systems.
Location: Gelsenkirchen
Date: 01.12.2021
Maximilian Girnus
Managing Director WALPOL GmbH
Information on CE marking in the accompanying documents
Walpol GmbH
Benzstr. 
 Gelsenkirchen
EN ISO -:
Separator system for grease with
integrated sludge trap
Information on CE marking on the grease separator
Walpol GmbH
EN 

17
Seite 1 von 7
Wissenschaftlich-technisches Gutachten zur
Tragfähigkeit und Stabilität eines Fettabscheiders aus
säurebeständigem Stahl
17.02.2021 Leszno
Planungsbüro Biuro Konstruktorskie OLAN Projects Ul.Kasztanowa 11 05-084 Wilkowa Wieś Tel. +48.509.452.425 www.olanprojects.e u NIP: 9372201372 Auftraggeber: Walpol Polska Sp. z o.o. Warszawska 3, 05-084 Leszno Auftragnehmer: Dipl. Ing. Henryk Kos Überprüfung: Dr. hab. Ing. Ireneusz Wróbel
15. Expert opinion
15.1. Grease separator WNG-S1
Scientific and technical opinion on the load-bearing capacity and stability of the grease separator made of
acid-resistant steel
OLAN Projects of 17.02.2021

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Seite 2 von 7
Inhaltsverzeichnis 1. Zweck und Umfang des Gutachtens.................................................................................. 2
2. Verwendete Materialien ...................................................................................................... 2
3. Beschreibung der Abscheiderkonstruktion...................................................................... 3 4. Annahmen zur statischen Festigkeitsanalyse ................................................................. 4
5. Analyseergebnisse ............................................................................................................. 6 6. Schlussfolgerungen ............................................................................................................ 7
1.
Zweck und Umfang des Gutachtens
Zweck des Gutachtens ist es, zu überprüfen, ob die Konstruktion des Abscheiders
ausreichende Tragfähigkeit hat - und damit die Sicherheit der Verwendung des Produkts gewährleistet. Der Umfang des Gutachtens umfasst folgende Forschungsaktivitäten:
1. Analyse der bereitgestellten technischen Dokumentation 2. Ermittlung der auf den Fettabscheider wirkenden Kräfte 3. Bau eines FEM-Modells des Abscheiders auf Basis der bereitgestellten Geometrie 4. Statische Festigkeitsanalyse 5. Gutachten zur Tragfähigkeit und Stabilität der Abscheiderkonstruktion 6. Schlussfolgerungen
Dieses Gutachten betrifft ausschließlich die Konstruktions- und Festigkeitsfragen, es bezieht sich nicht auf die Fertigungstechnologie des Fettabscheiders.
2.
Verwendete Materialien
[1] PN-EN 1990 Eurocode 0: Grundlagen der Tragwerksplanung. [2] PN-EN 1991-1-1 Eurocode 1: Einwirkungen auf Tragwerke. Teil 1-1
Allgemeine Einwirkungen - Wichten, Eigengewicht, Nutzlasten im Hochbau.
[3] PN-EN 1993-1-1 Eurocode 3: Bemessung und Konstruktion von Stahlbauten -
Teil 1-1: Allgemeine Bemessungsregeln und Regeln für den Hochbau.
[4] PN-EN 10088-1 Nichtrostende Stähle - Teil 1: Verzeichnis der nichtrostenden Stähle.
Seite 3 von 7
[5] PN-EN 10088-2 Nichtrostende Stähle - Teil 2: Technische Lieferbedingungen
für Blech und Band aus korrosionsbeständigen Stählen für allgemeine Verwendung.
[6] Zeichnungsdokumentation und dreidimensionale Geometrie, die vom
Auftraggeber bereitgestellt wurden.
[7] E-Mail-Schriftverkehr
3.
Beschreibung der Abscheiderkonstruktion
Der Abscheider, der auf der Zeichnung 1 dargestellt ist, hat die Form eines Quaders
mit den Abmessungen 600 x 1850 x 970 mm (B x L x H). Er wurde aus 2 mm dickem
säurebeständigem Stahl 1.4301 nach PN-EN 10088-1 gefertigt. Die Abscheiderwände sind mit einem Band verstärkt. Die Geometrie des Abscheiders wurde vom Auftraggeber übergeben. Der Abscheider wird im Innenbereich eingesetzt.
Verstärkungsband
Abb. 1 Abscheidermodell

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Die GZG-Bedienung wurde durch den Vergleich der maximalen Durchbiegung der Behälterwände mit den zulässigen Werten geprüft (angenommen L/200, wobei L ist die kürzere
Seite der Wand).
4.4. Beschreibung des Rechenmodells
Die Berechnungen des Abscheiders wurden mit der Finite-Elemente-Methode durchgeführt. Die vom Kunden bereitgestellte Geometrie wurde in das FEM-System eingeführt. Der Abscheider wurde mit flachen Vier-Knoten-Finite-Elementen modelliert. An den Füßen des
Unterbaus wurde verhindert, dass es zur Verschiebung in vertikaler Richtung kommt. An die
Behälterwände kam von Innen hydrostatischer Druck (Flüssigkeitsdichte wurde gemäß Abschnitt 3.1 angenommen). Bei den Berechnungen wurde auch das Eigengewicht der Konstruktion berücksichtigt. Geometrische Nichtlinearität (große Verformungen) wurde bei den Berechnungen berücksichtigt. Die numerischen Modelle wurden weder validiert noch kalibriert,
so dass die Ergebnisse der Berechnungen nicht mit den Ergebnissen von Tests an realen Objekten gleichgesetzt werden können. In Wirklichkeit können die Werte von Lasten, Verschiebungen und Verformungen etwas anders sein. Abbildung 2 zeigt das diskrete FEN-
Modell des Abscheiders, die Werte des auf den Abscheider wirkenden hydrostatischen Drucks und wie das Modell abgestützt wird.
Diskretes FEM-Modell hydrostatischer Druck Abstützung des Modells
Abb. 2 Diskretes Modell sowie Randbedingungen der Aufgabe
Seite 4 von 7
4.
Annahmen zur statischen Festigkeitsanalyse
4.1. Auf den Abscheider wirkende Kräfte In den numerischen Berechnungen wurden folgende Belastungen berücksichtigt: • Druck der Flüssigkeit an den Wänden des Abscheiders - U Bei den Berechnungen wurde angenommen, dass sich der Abscheider bis zur Höhe der Oberkante mit Wasser füllt. Angenommene Wasserdichte: rw= 1000 kg/m3
Für den charakteristischen Wert der Einwirkung wurde der Grenzzustand der Gebrauchstauglichkeit (GZG) und für den Bemessungswert der Einwirkung wurde die
Bedingung des Grenzzustands der Tragfähigkeit (GZT) nachgewiesen (für die Einwirkungen wurde 1,5-Faktor nach [1] angenommen):
rz= 1,5 * 10 kg/m3 = 1500 kg/m3.
Für die FEM-Analyse des Abscheiders wurde folgende äquivalente Dichte angenommen: rz= 1500
kg/m3
4.2. Mechanische Parameter des Stahls, die bei der Analyse angenommen wurden Für die Berechnungen wurden folgende mechanische Parameter des rostfreien Stahls 1.4301 nach PN-EN 10088-1 und 2 ([4], [5]) angenommen:
• Elastizitätsmodul E = 194 [GPa],
• Poissonzahl v = 0,3, • spezifisches Gewicht r = 7900 [kg/m3], • charakteristische Werte der konventionellen Streckgrenze (Ra) und Zugfestigkeit (Rm): Ra = 230 [MPa] und Rm = 540 [MPa]. 4.3. Bedingungen für Grenzzustände Der Nachweis der GZT-Bedienung erfolgte wie folgt: • Vergleich der maximalen reduzierten Spannung HMH infolge von Einwirkungen mit
Bemessungswerten mit der konventionellen Streckgrenze von Stahl (Teilsicherheitsbeiwert YMI = 1,0 wurde nach PN-EN 1993-1 angenommen), • Nachweis der Möglichkeit des Stabilitätsverlustes der Abscheiderwände (unter Berücksichtigung der geometrischen Nichtlinearität in der Analyse).

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Seite 6 von 7
5.
Analyseergebnisse
Abbildung 3 zeigt die Spannungsschichtung nach von Mises, die in der Abscheiderkonstruktion
unter hydrostatischem Druck auftritt.
Abb. 3 Reduzierte Spannungsschichtung nach von Mises in MPa Bei der Analyse der in Abbildung 3 dargestellten Ergebnisse kann festgestellt werden, dass die maximale reduzierte Spannung sred = 131 MPa<Ra=230 MPa beträgt.
Der Sicherheitsfaktor ist =
Die Stabilität der Abscheiderwände wird nicht beeinträchtigt. Die GZT-Bedingung ist erfüllt.
Seite 7 von 7
Auf der Abbildung 4 sind die Verformungsschichten des
Separators dargestellt.
Abb. 3 Verformungsschichten des Separators in mm
Bei der Analyse der in Abb. 4 dargestellten Ergebnisse kann festgestellt werden, dass die maximalen Verformungen (Durchbiegungen) des Behälters w =3.2 mm betragen. Grenzwert der Durchbiegung W=3,2 mm < Wdop = 4,85 mm
Die Bedingung für die Durchbiegungsgrenzen (GZG) wurde erfüllt.
6.
Schlussfolgerungen
In Anbetracht der Ergebnisse der durchgeführten FEM-Analysen kann festgestellt werden, dass: - die maximalen Spannungen in den Abscheiderwänden die zulässigen Werte nicht überschreiten – die GZT-Bedingung ist erfüllt, - die höchsten Durchbiegungswerte der Behälterwände keine Grenzwerte überschreiten - die GZG-Bedingung ist erfüllt. Erstellt Geprüft Dipl. Ing. Henryk Kos Dr. hab. Ing. Ireneusz Wróbel