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German Standard (DIN) for Rainwater Harvesting: technology and products.
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Transcript of German Standard (DIN) for Rainwater Harvesting: technology and products.
German Standard (DIN) for Rainwater Harvesting:technology and products
Ecological and sustainable water management is a goal of the precipitation water management.
The alternatives to the customary drainage of precipitation water are, among other things,rainwater harvesting and infiltration, as well as the decentralized retention of rainwater.
A new system technology with new components has been developed for rainwater harvesting in households and commercial and industrial companies.
The standard for rainwater harvesting was developed taking the generally-recognized rules of technology for drinking water installations into consideration according to the standard series DIN1988 and according to DIN EN 1717 and for drainage systems according to the standard series DIN EN 12056 and DIN 1986.
Requirements on system technology for the planning, installation, operation and maintenance that have proven themselves in practice are set down in this standard
DIN 1989 Rainwater Harvesting Systems
The standard series DIN 1989 „Rainwater Harvesting Systems“ consists of the following parts:
• Part 1: Planning, Installation, Operation and Maintenance
• Part 2: Filter for Rainwater harvesting
• Part 3: Rainwater Reservoirs
• Part 4: Components for Control and supplemental supply
DIN 1989 Rainwater Harvesting Systems
The standard series DIN 1989-1 „Rainwater Harvesting Systems“
Part 1: Planning, Installation, Operation and Maintenance
This standard applies to systems utilizing rainwater in households and commercial and industrial companies, as well as in public organizations, in which it is used for flushing toilets, for cooling purposes, for washing and cleaning systems and for watering green areas, for instance.
Following parts are treated:Collection Areas, Treatment, Rainwater Reservoirs and Add-On Parts, Process Water Pumps, Supplemental Feed Systems, System Control Unit, Supplemental Feed Modules, Central Rainwater Systems and Hybrid Systems, Pipe Systems and Labelling, Seepage of the Overflow Water, Protection against Backflow, Types of systems and set up possibilities, Design of the Reservoir Size, Operation, Inspection and Maintenance
DIN 1989 Rainwater Harvesting Systems
The standard series DIN 1989-2 „Rainwater Harvesting Systems“
• Part 2: Filter for Rainwater harvesting
This part lay down the standard and tests for mechanical working filters which are installed in the supply of reservoirs for rainwater harvesting systems.
DIN 1989 Rainwater Harvesting Systems
There is a multitude of special filters for rainwater harvesting systems that are distinguished by design, installation position and functional principle (e.g. filter matting , filter screen). Filters are to be installed in the supply line to the reservoir as a general rule. They keep foreign material away from the rainwater reservoir that could bring about malfunctions in the system or make the water quality poorer. Rainfall pipes or central location in front of the reservoir are possible installation places. Furthermore, filters can be directly located in the rainwater supply line inside of the reservoir.
The standard series DIN 1989-3 „Rainwater Harvesting Systems“
• Part 3: Rainwater Reservoirs
This part lay down the standard, tests and assessments of conformance for manufactured monolithic reservoirs, for manufactured multi-parts reservoirs and for reservoirs made on-site.
DIN 1989 Rainwater Harvesting Systems
Rainwater reservoirs are for both the storage and the cleaning of the rainwater. Reservoirs can be set up both above-ground and below-ground.
The set up location should be chosen in such a way that the stored water is protected against strong thermal effects, frost and light. The selection of the reservoir has to be done in coordination with the installation location and the pollution to be expected. Standardized reservoirs are to be used.
The standard series DIN 1989-4 „Rainwater Harvesting Systems“
• Part 4: Components for Control and supplemental supply
This part lay down the standard and tests for manufactured or made on-site assembly unitsfor supplemental supply units for reservoirs, for system control units of process water pump and hybrid units.
DIN 1989 Rainwater Harvesting Systems
Supplemental feed modules consist of a supplemental feed device and a system control unit and are usually produced in the factory as an assembly.Process water pumps, the supplemental feed system and the system control unit are combined in one assembly in the factory into central rainwater systems.Hybrid containers are used as a preference in larger rainwater harvesting systems.
DIN 1989 Rainwater Harvesting Systems
System Control unit
•The system control unit controls automatically the functioning of the rainwater harvesting system•The supplemental feed has to be done via a safety device Type AA (unobstructed free outlet) or Type AB (free outlet with a non circular overflow) according DIN EN 1717 when drinking water is used.•The safety device is to be installed outside of the rainwater reservoir and outside of the entry shaft (dome).•For continuous operating, the rainwater harvesting system can also be operated independently of the rainwater reservoir.
Typical Rainwater harvesting unitfor a normal household in Germany
Rainwater will be used for :
- toilet flush- washing machines- cleaning- garden watering
The unit has two main components:
1. Reservoir (here below-ground)with integrated four cleaning steps
2. System control unit with a submersible pump and a supplemental feed system
1. Reservoir2. Filter3. Quiescent supply4. Overflow with odor trap5. Submersible pump with floating intake6. Process water pump with intgrated
free outlet according to DIN 1717 and system control unit
7. Process water line to toilet flush, washing machines, cleaning and garden watering
8. Cable trench for pump cable and water level recording
9. Pressure line10. Supplemental feed line11. Drinking water line12. Overflow for process water pump
according DIN 1717
CLEAN WATER
Products for rainwater harvestingspecial for cleaning rainwater
OUR MISSION
The first cleaning step in the rainwater system is the filter. The rainwater
flows from the roof to the filter. Here dirt particles and debris are separated
from the water. The cleaned water flows to the tank. The dirt is washed to
the
storm water pipe or soakaway with a small amount of rainwater. All 3P
rainwater filters have stainless steel inserts, which are easy to remove and
easy to clean. Their many different working principles and connection
possibilities allow for their use in many different installation situations, with
the advantage of very low maintenance.
4 cleaning steps
1. Cleaning stepFilter
By using an underground tank, the water is stored in dark and cool
conditions. Here the second cleaning step takes place. In the water column,
any fine residual particles settle to the bottom of the tank. The rainwater
Calmed Inlet prevents any disturbance of this sedimentation layer. At the
same time the Calmed Inlet ensures that oxygenated water is introduced to
the lower layers of the stored water in the tank. This oxygen rich water
prevents anaerobic conditions from forming in the storage tank and
ensures that the water stays fresh.
Any particles that are lighter than water (e.g. flower pollen) float slowly to the
water surface. The expertly designed 3P Overflow Siphon, with a skimmer
effect, removes this floating layer. The regular overflow from the storage tank
is important to get the optimum water quality. It prevents souring of the
water.
The floating layer could otherwise build up over time, and so reduce oxygen
diffusion at the water surface, which in turn could lead to anaerobic
conditions in the tank.
2. Cleaning stepCalmed inlet
3. Cleaning stepOverflow siphon
4. Cleaning stepFloating pump intake
The 3P Pump Intake floats at all times, suspended just below the water
surface where the cleanest water lies. From this position the water is
extracted by the pump. A ball float, filled with air, suspends the intake, which
has a further filter and a check valve.
3P Rainus
Rainwater Filter for down pipes
where the cleaned rainwater flows
on down into the down pipe!
Install
in the lower section of the
down pipe. Easy to monitor, easy
to install, with secure reliable
function. Simple to maintain.
3P Filter Collector grey
Durable high quality plastic. Filters
and collects rainwater for barrels
and tanks. Overflow function.
Simple installation. Complete with
adapter and reduction sets.
3P Leaf Separator grey
No more blocked rainwater gutters
and gullies. Accumulating leaves
and particles are continuously
filtered out. Complete with
reduction sets.
3P Leaf Catcher
The 3P Leaf Catcher is simply
installed in the down pipe. It filters
out leaves and moss, and collects
it in a small basket. Install it at a
convenient height for leaf removal
from time to time.
3P Rain Collector with rough filter
The simple 3P Rainwater Collector with large slat filter
collects and filters the rainwater from small roofs for
smaller rainwater tanks. Fits down pipes made of
Copper,
Aluminium or galvanised, with a 25 mm outlet
connection, screw thread or push-fit.
1. Cleaning step – Filter
1 Down pipe Filters
1. Cleaning step – Filter
2 Intank Filters
Backwashing Device SF and PF
Backwashing Device ZF
1. Cleaning step – Filter
3 Underground Filter
3P Volume Filter VF1
For roof areas up to 300 m². High levelof filtering efficiency, independent ofFlow rate. Continuous filtering of dirtparticles. Frost resistant, lowmaintenance. Filter insert is easilyremoved for cleaning. Materials: PE
withStainless Steel sieve with a mesh sizeof 0.65 mm.
3P Volume Filter VF1
+ Telescopic extention
Rainwater filter for roof areas up to 300 m².High level of filtering efficiency,independent of flow rate. Continuousfiltering of dirt particles. Frost resistant.Self cleaning. Low maintenanceintervals Filter insert is easily removedfor cleaning. Materials: PE and stainlesssteel. Stainless steel sieve with a meshsize of 0.65 mm. Height 470 mm. Heightdifference between inlet and outlet just300 mm.
Extension tube for direct installation inthe ground Installation depth up to 750 mm Diameter 500 mm. Extensiontube delivered with locking lid. Lidsupports pedestrian loading.
1. As water arrives the level builds up and is equallydistributed across the cascade
2. Pre cleaning through the cascades. Largest dirt particles are led across the primary filter cascades directly to the storm water.
3. Pre filtered water then flows over the secondary filter sieve (mesh size 0.65 mm). Due to the special mesh structure of the sieve, any dirt washes directly into the storm water which means the filter is self cleaning, with very low maintenance.
4. Cleaned water flows to the cistern.
5. Dirt goes to the storm water.
1. Cleaning step – Filter
4 Industrial Filters
3P Volume Filter VF2
Rainwater filter for roof areas up to
850 m2. Filter for installation in
concrete ring (diameter 100 cm). Low
maintenance. Filter insert easily removed
for cleaning. Material: stainless steel.
3P Volume Filter VF3
Rainwater filter for roof areas up to
1100 m2. Filter for installation in
concrete ring (diameter 120 cm) Low
maintenance. Filter insert easily removed for
cleaning. Material: stainless steel.
3P Volume Filter VF4
Rainwater filter for roof areas up to
1700 m2. Filter for installation in
concrete ring (diameter 120 cm). Low
maintenance. Filter insert easily removed for
cleaning. Material: stainless steel.
3P Volume Filter VF6
Rainwater filter for roof areas up to
2350 m2. Filter for installation in
concrete ring (diameter 120 cm). Low
maintenance. Filter insert easily removed for
cleaning. Material: stainless steel.
1. As rain water arrives the water level builds up, and runs over the filter lip, so ensuring it is distributed evenly across the whole width of the filter cascade.
2. Pre cleaning through the cascades. Larger dirt particles are washed across the cascades directly to the sewer.
3. Pre filtered water then flows over the secondary filter (mesh size 0.65 mm). Due to the special structure of the sieve mesh, any dirt is washed directly into the storm water which means the filter is self cleaning, low maintenance.
4. Cleaned water flows to the storage tank.
5. Dirt goes to the storm water.
4 cleaning steps
1. Cleaning stepFilter
2. Cleaning stepCalmed inlet
3. Cleaning stepOverflow siphon
4. Cleaning stepFloating pump intake
The first cleaning step in the rainwater system is the filter. The rainwater
flows from the roof to the filter. Here dirt particles and debris are separated
from the water. The cleaned water flows to the tank. The dirt is washed to
the
storm water pipe or soakaway with a small amount of rainwater. All 3P
rainwater filters have stainless steel inserts, which are easy to remove and
easy to clean. Their many different working principles and connection
possibilities allow for their use in many different installation situations, with
the advantage of very low maintenance. By using an underground tank, the water is stored in dark and cool
conditions. Here the second cleaning step takes place. In the water column,
any fine residual particles settle to the bottom of the tank. The rainwater
Calmed Inlet prevents any disturbance of this sedimentation layer. At the
same time the Calmed Inlet ensures that oxygenated water is introduced to
the lower layers of the stored water in the tank. This oxygen rich water
prevents anaerobic conditions from forming in the storage tank and
ensures that the water stays fresh.
Any particles that are lighter than water (e.g. flower pollen) float slowly to the
water surface. The expertly designed 3P Overflow Siphon, with a skimmer
effect, removes this floating layer. The regular overflow from the storage tank
is important to get the optimum water quality. It prevents souring of the
water.
The floating layer could otherwise build up over time, and so reduce oxygen
diffusion at the water surface, which in turn could lead to anaerobic
conditions in the tank.
The 3P Pump Intake floats at all times, suspended just below the water
surface where the cleanest water lies. From this position the water is
extracted by the pump. A ball float, filled with air, suspends the intake, which
has a further filter and a check valve.
2. Cleaning step
Calmed Inlet
3P Calmed Inlet
3P Calmed Inlet 125 mm/110 mm Provides a calmed inlet for rainwater in
the storage tank. Prevents disturbance of settled sedimentation layer and
oxygenises lower layer of water
4 cleaning steps
1. Cleaning stepFilter
2. Cleaning stepCalmed inlet
3. Cleaning stepOverflow siphon
4. Cleaning stepFloating pump intake
The first cleaning step in the rainwater system is the filter. The rainwater
flows from the roof to the filter. Here dirt particles and debris are separated
from the water. The cleaned water flows to the tank. The dirt is washed to
the
storm water pipe or soakaway with a small amount of rainwater. All 3P
rainwater filters have stainless steel inserts, which are easy to remove and
easy to clean. Their many different working principles and connection
possibilities allow for their use in many different installation situations with
the advantage of very low maintenance. By using an underground tank, the water is stored in dark and cool
conditions. Here the second cleaning step takes place. In the water column,
any fine residual particles settle to the bottom of the tank. The rainwater
Calmed Inlet prevents any disturbance of this sedimentation layer. At the
same time the Calmed Inlet ensures that oxygenated water is introduced to
the lower layers of the stored water in the tank. This oxygen rich water
prevents anaerobic conditions from forming in the storage tank and
ensures that the water stays fresh.
Any particles that are lighter than water (e.g. flower pollen) float slowly to the
water surface. The expertly designed 3P Overflow Siphon, with a skimmer
effect, removes this floating layer. The regular overflow from the storage tank
is important to get the optimum water quality. It prevents souring of the
water.
The floating layer could otherwise build up over time, and so reduce oxygen
diffusion at the water surface, which in turn could lead to anaerobic
conditions in the tank.
The 3P Pump Intake floats at all times, suspended just below the water
surface where the cleanest water lies. From this position the water is
extracted by the pump. A ball float, filled with air, suspends the intake, which
has a further filter and a check valve.
3. Cleaning step – Overflow
3P Overflow Siphon mono
Overflow siphon, with rodent and odour
barrier, with skimming effect on tank water
surface from sloped inlet slots.
3P Overflow Siphon duo
3P Overflow siphon duo is installed between
the filter and the tank. Overflow inside the
rainwater tank.
3P Overflow Siphon uno
3P Overflow Siphon Uno with screw
threaded union connector, ideal for
installation through plastic tank walls.
1 As the tank water level rises, the water flows over the skimmer siphon inlet into the storm water or to an infiltration soakaway. Any floating pollen particles are literally sucked by the skimmer openings.
2 The surplus water with the pollen is led out of the rainwater tank. Outlet 110 mm.
3 An Odour Trap is provided by the siphon.
4 Connection filter side for 110 mm pipe (3P Overflow siphon duo).
5 Rodent entry is prevented, because of the slim slots.
4 cleaning steps
1. Cleaning stepFilter
2. Cleaning stepCalmed inlet
3. Cleaning stepOverflow siphon
4. Cleaning stepFloating pump intake
The first cleaning step in the rainwater system is the filter. The rainwater
flows from the roof to the filter. Here dirt particles and debris are separated
from the water. The cleaned water flows to the tank. The dirt is washed to
the
storm water pipe or soakaway with a small amount of rainwater. All 3P
rainwater filters have stainless steel inserts, which are easy to remove and
easy to clean. Their many different working principles and connection
possibilities allow for their use in many different installation situations with
the advantage of very low maintenance. By using an underground tank, the water is stored in dark and cool
conditions. Here the second cleaning step takes place. In the water column,
any fine residual particles settle to the bottom of the tank. The rainwater
Calmed Inlet prevents any disturbance of this sedimentation layer. At the
same time the Calmed Inlet ensures that oxygenated water is introduced to
the lower layers of the stored water in the tank. This oxygen rich water
prevents anaerobic conditions from forming in the storage tank and
ensures that the water stays fresh.
Any particles that are lighter than water (e.g. flower pollen) float slowly to the
water surface. The expertly designed 3P Overflow Siphon, with a skimmer
effect, removes this floating layer. The regular overflow from the storage tank
is important to get the optimum water quality. It prevents souring of the
water.
The floating layer could otherwise build up over time, and so reduce oxygen
diffusion at the water surface, which in turn could lead to anaerobic
conditions in the tank.
The 3P Pump Intake floats at all times, suspended just below the water
surface where the cleanest water lies. From this position the water is
extracted by the pump. A ball float, filled with air, suspends the intake, which
has a further filter and a check valve.
4. Cleaning step – Floating pump intake
3P Floating Pump Intake
For the extraction of the cleanest rainwaterfrom the storage tank. Connects to suctionpipes 25 mm and 32 mm.
• Floating ball, diameter 15 cm • Filter inlet sleeve, mesh width 1.2 mm • Check valve, 25 mm and 32 mm. • Connection spout 25 mm and 32 mm.
3P Submersible Pump Base
Housing to fix a submersible Pump on thebottom of a rainwater tank and to connect afloating Pump intake.
• Floating ball, diameter 15 cm • Filter inlet sleeve, mesh width 1.2 mm • Check valve, 25 mm and 32 mm. • Connection spout 25 mm and 32 mm.
4 cleaning steps
1. Cleaning stepFilter
2. Cleaning stepCalmed inlet
3. Cleaning stepOverflow siphon
4. Cleaning stepFloating pump intake
The first cleaning step in the rainwater system is the filter. The rainwater
flows from the roof to the filter. Here dirt particles and debris are separated
from the water. The cleaned water flows to the tank. The dirt is washed to
the
storm water pipe or soakaway with a small amount of rainwater. All 3P
rainwater filters have stainless steel inserts, which are easy to remove and
easy to clean. Their many different working principles and connection
possibilities allow for their use in many different installation situations with
the advantage of very low maintenance. By using an underground tank, the water is stored in dark and cool
conditions. Here the second cleaning step takes place. In the water column,
any fine residual particles settle to the bottom of the tank. The rainwater
Calmed Inlet prevents any disturbance of this sedimentation layer. At the
same time the Calmed Inlet ensures that oxygenated water is introduced to
the lower layers of the stored water in the tank. This oxygen rich water
prevents anaerobic conditions from forming in the storage tank and
ensures that the water stays fresh.
Any particles that are lighter than water (e.g. flower pollen) float slowly to the
water surface. The expertly designed 3P Overflow Siphon, with a skimmer
effect, removes this floating layer. The regular overflow from the storage tank
is important to get the optimum water quality. It prevents souring of the
water.
The floating layer could otherwise build up over time, and so reduce oxygen
diffusion at the water surface, which in turn could lead to anaerobic
conditions in the tank.
The 3P Pump Intake floats at all times, suspended just below the water
surface where the cleanest water lies. From this position the water is
extracted by the pump. A ball float, filled with air, suspends the intake, which
has a further filter and a check valve.
CLEAN WATER
OUR MISSION