Related Manuals for Intewa PURAIN 100
Summary of Contents for Intewa PURAIN 100
- Page 1 PURAIN 100 PR100, PR100‐oRS PURAIN 150 PR150, PR150‐o.SK PURAIN 200‐400 PR200, PR300, PR400 PURAIN 200‐400‐HD PR200‐HD, PR300‐HD, PR400‐HD Instruction and Installation Guide WATER, WE’RE in OUR ELEMENT www.intewa.com ...
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Page 2: Table Of Contents
Contents Introduction .............................. 2 Dimensioning .............................. 2 Dimensioning for rainwater harvesting systems (gravity drainage) .............. 2 Dimensioning for greywater treatment system .................... 3 Features ................................. 3 Self‐cleaning due to hydraulic jump ......................... 3 Non‐return valve/small animal protection ....................... 4 Skimmer function ............................. 5 ... -
Page 3: Introduction
1. Introduction Thank you for your INTEWA PURAIN pre‐filter purchase. PURAIN filters are designed for filtering rainwater from roofs made of clay tiles, slate, bricks, metal, glass or concrete block. They are also used as pre‐filtration for gray water treatment systems. Die PURAIN Modelle bieten dabei folgende Vorteile: minimal height offset minimum maintenance intervals self‐cleaning due to hydraulic jump (in the rainwater harvesting system) minimal tendency to block due to trapezoidal slotted screen immediate filtering (= no start‐up losses) back flushing possibility 2. Dimensioning 2.1 Dimensioning for rainwater harvesting systems (gravity drainage) The PURAIN rainwater filters are usually dimensioned simply on the basis of the diameter of the connected rainwater collection line. If the diameter of the planned collection pipe is still unknown, the table 1 can be used as a guide. It gives an overview of the dimensioning of these rainwater connection pipes according to DIN 1986 at a design ... -
Page 4: Dimensioning For Greywater Treatment System
2.2 Dimensioning for greywater treatment system The PURAIN filter "without weir" version is also used in gray water treatment plants. The filter size depends on the diameter of the collection pipe, the peak flow, the filter capacity and the discharge capacity. Tab. 2: PURAIN filter sizes/models for grey water treatment systems Greywater system capacity PURAIN Type* 300 – 900 l/d PR100 1.200 – 10.800 l/d PR150 16.200 – 32.400 l/d PR200 48.600 l/d PR300 *Discharge calculation based on peak flow according to NSF/Ansi 350 (40% of daily water flow between 7 ‐ 10 a.m. with safety factor (sf=2) and regular use. 3. Features 3.1 Self‐cleaning due to hydraulic jump ... -
Page 5: Non-Return Valve/Small Animal Protection
3.2 Non‐return valve/small animal protection The PURAIN PR100 version already contains a non‐return valve prescribed in the standard. This prevents water contaminated by the overflow from the sewer or small animals from entering the cistern. Fig. 3: PR100 with integrated non‐return valve Note: Type PR150 to PR400 do not have an integrated non‐return flap. This must be provided separately behind these filters. When connecting to the sewer, an odor e.g a siphon must always be provided Non return flap Fig. 4: Example system with PR150 filter and external non‐return flap 4 PURAIN Manual Vers. 1.3_en ... -
Page 6: Skimmer Function
3.3 Skimmer function Cleaning of the water surface in the tank is performed by an overflow skimmer integrated in the PURAIN filter and located on both sides (except PR‐150‐o.SK.). Floating debris, such as pollen (rainwater harvesting systems) or fats and oils (graywater application), are removed by the side skimmers from the water surface at maximum water level and discharged directly into the sewer connection. The overflow skimmer therefore has a cleaning function in the system. Fig. 5: Skimmer at PR100 Fig. 6: Skimmer at PR150 Note: If the PURAIN filter is installed outside tanks, the "o.SK." (without skimmer) variant must be used. Large filters PR200 ‐ PR400 are not equipped with a skimmer. This must be installed separately in the tank. 3.4 Guard grid for grey water application When using the filters in grey water applications, the connection of the filtered water is provided with a guard grid (see accessories) so that at maximum water level no growth bodies enter the filter housing and ... -
Page 7: Filter Back Wash
3.5 Filter back wash The manual cleaning intervals can be extended with backwash nozzles, which are mounted on the back of the filter. However, they are indispensable for grey water applications, as daily backwashing is required here. This backwash is controlled by the grey water control unit. Note: Installation instructions for the various backwash nozzles can be found in the relevant accessory instructions. 3.5 PURAIN filter function overview Tab. 3: PURAIN filter function overview Designed for Non‐return flap Skimmer backflushing nozzle PR100 x x x PR100‐o.RS. ‐‐ x x PR150 ‐‐... -
Page 8: Technical Data
4. Technical data 4.1. Technical data PR100 PR100 Length 605 mm Width 180 mm Height 288 mm Net weight 1,95 kg Sieve width 0,8 mm Inlet height 164 mm Height dirt water connection 114 mm Height offset 50 mm Dirty water inlet connection DN 100 Cistern inlet connection DN 100 Dirty water outlet connection DN 100 Material PP, Stainless steel, EPDM Effective efficiency 98 % hydraulic jump point 1,2 l/s ... - Page 9 Rainwater inlet Dirty water outlet PR100‐oRS: 1. filter housing 2. lip seal DN100 3. sieve 4. skimmer opening Cistern inlet additionally included with PR100: filtered 5. backwater flap seal 6. backwater flap 7. backwater box with lid lock Fig. 9: Structure of the PURAIN filter DN100 8 PURAIN Manual Vers. 1.3_en ...
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Page 10: Technical Data Pr150
4.2. Technical Data PR150 PR150 Length 1018 mm Width 243 mm Height 458 mm Net weight 7,4 kg Sieve width 0,8 mm Inlet height 277 mm Length of connection end 69 mm Height dirty water connection 128 mm Height offset 149 mm Dirty water inlet connection DN 150 Connection cistern inlet DN 150 Connection dirty water outlet DN 150 Color black Load class walkable Material PP, stainless stell, EPDM Effective efficiency 98 % Hydraulic jump point ... -
Page 11: Technical Data Pr200-400
4.3. Technical Data PR200‐400 PR200 PR300 PR400 Length L 1495 mm 1786 mm 2043 mm Width B 266 mm 385 mm 488 mm Height H 660 mm 866 mm 1025 mm Net weight 26 kg 48 kg 65 kg Sieve width 0.8 mm 0.8 mm 0.8 mm Height inlet H2 405 mm 499 mm 572 mm Height dirty water connection H3 235 mm 228 mm 226 mm Height clear water connection H1 32 mm 53 mm ... -
Page 12: Technical Data Pr200-400-Hd
4.4. Technical Data PR200‐400‐HD PR200‐HD PR300‐HD PR400‐HD Length L 1495 mm 1786 mm 2043 mm Width B 393 mm 581 mm 670 mm Height H 1075 mm 1281 mm 1440 mm Net weight 78 kg 117 kg 188 kg Sieve width 0.8 mm 0.8 mm 0.8 mm Width B1 184 mm 295 mm 370 mm Length L2 408 mm 460 mm 424 mm Length L1 248 mm ... -
Page 13: Accessories
For grey water applications, the backwash nozzle is mandatory. The solenoid valve for automated backflushing is activated via the AQUALOOP control. Solenoid valve ½", 24 V DC for the INTEWA backflush nozzle for PR100 Code: AL‐MV½/24 Article number: 230125 The electrical connection is done at the AQUALOOP control unit. Here, ... - Page 14 Stainless steel pipe connector DN100 Code: PIPE‐CON100 Article number: 900528 Pipe connector for DN100 pipes PLURAFIT Inlet calming DN100 Code: PF300‐100‐Calm Article number: 300080 Over time, fine particles settle to the bottom of the tank and form a sediment layer over time. To prevent this sediment layer from being stirred up by incoming rainwater, the water must be delivered to the tank smoothly. With the inlet calming device, the rainwater is supplied close to the bottom without stirring up the sediment Backflush for PR150 Code: PR‐RSDS150 Article number: 210170 We recommend the backflushing nozzles to minimize the intervals of manual maintenance. The required mounting parts are included in the scope of delivery of the backflush nozzle. The water required for backflushing ...
- Page 15 Cover for PR‐200 with inspection hatch Code: PR200‐C‐IF Article number: 210196 The PR‐200‐C‐IF cover is used when mounting outside a chamber. The scope of delivery also includes the fixing clamp. Cover for PR‐300 Code: PR300‐C Article number: 210192 The PR‐300‐C cover is used when mounting outside a chamber. The scope of delivery also includes the fixing clamp. Cover for PR‐300 with inspection hatch Code: PR300‐C‐IF Article number: 210194 The PR‐300‐C cover is used when mounting outside a chamber. The scope of delivery also includes the fixing clamp. ...
- Page 16 PLURAFIT Cover, car passable Code: PF300‐C111 Article number: 300050 The PLURAFIT PF 300‐C 111kN is a chamber cover for floating traffic loads into the ground and is passable by a 1.2 t car. PLURAFIT Calming inlet DN150 Code: PF300‐150‐Calm Article number: 300085 With course of time, fine particles settle at the base of the tank and form a sediment layer. In order to avoid swirling of the sediment layer by inflowing rain water, the water must be steadily supplied to the tank. The inlet calmer leads the rainwater to the tank in the direction of flow created at the base of the tank ‐ the sediment layer is not disturbed. ...
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Page 17: General Installation Instructions
6. General installation instructions 6.1. Installation in Tank The filter is installed in the tank on the underside of the entry zone to allow maintenance and cleaning from above and access to the tank. It is important to follow the following steps while 2 - 5% installing the filter: The filter must be installed with a slope of 2 – 5 % from inflow to outflow side. ... -
Page 18: Installation Outside The Tank
6.2. Installation outside the tank If it is not possible to mount the filter inside the tank, it can also be mounted above the tank. However, only filters without a skimmer are suitable for this purpose. Caution: Installations outside the tank harbour a high risk as the filters are not water pressure‐tight. In the event of an overflow, water can escape from the filter. In addition, small leaks in the weld seams cannot be ruled out 100% due to the manufacturing process. For this reason, the filters may only be used outside a storage tank if water leakage cannot lead to water damage or if small leaks can be tolerated. If a backwash nozzle is used, it must be specially sealed (see instructions for backwash nozzle) Installation outside the tank requires a filter cover to prevent dust and dirt from getting into the filter from outside (see accessories). The overflow in the tank should, by means of a sloping overflow edge, increase the skimmer effect when overflowing, in order to remove debris from the water surface. ... - Page 19 1159 Fig. 18: Example of a wall installation of the PR150 18 PURAIN Manual Vers. 1.3_en ...
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Page 20: Underground Installation Pr150 O.sk. And Pr200-Hd - Pr40-Hd
6.3 Underground installation PR150 o.SK. and PR200‐HD – PR40‐HD 6.3.1 General instructions for ground installation Proper installation of the PURAIN filter is a necessary part of ensuring its proper functioning and long service life. This applies to the entire construction phase from the preparation of the foundation and backfilling to the covering of the filter with the floating bedding of the manhole and manhole cover. Fig. 19: Application example PR150 rainwater filter for underground installation 6.3.1.1 Base layer and equalizing layer The carrying capacity of the existing ground is essential for stability. If the carrying capacity of the natural ground is not enough, then the ground must be strengthened by further measures (such as by a gravel base layer, Geotextile insert etc.). Coarse, non binding, compressible backfilling material must be used as a base layer. The area where the filter will sit must hold a minimum carrying capacity of Ev2 ≥ 45 MN/m². 6.3.1.2 Filter backfilling and materials The filter must be backfilled into place with coarse/non‐binding and compactable backfilling material. Backfilling and compacting can only be undertaken in layers of 20cm at a time. The base on which the filter sits must be compacted and this compacted area should overlap the filter dimensions by 400mm all around The minimum compressed filling above the filter shoulder must be 35 cm. Thereby, the required carrying capacity of EV2 = 45MN/m² specified for superstructure by ZTV E‐StB 09 is ensured. 19 PURAIN Manual Vers. 1.3_en ... - Page 21 Fig. 20: Construction layers for backfilling with coarse/non‐binding and compressible ground materialsfor PR150 Oberbau/ Verkehrsfläche Fig. 21: Construction layers for backfilling with coarse/non‐binding and compressible ground materialsfor PR200 HD‐ PR400 HD The approved backfilling materials, as well as the required carrying capacity of are represented in the following table 4. Compacting / Carrying Construction layer Material capacity Coarse/non‐binding, compressible Base / equalizing layer ≥ 97% A, C material of soil classes 3 and 4 and filter overlay min. E = 45MN/m² according to DIN18300 Coarse/non‐binding, compressible material of soil classes 3 and 4 Lateral filling from all according to DIN18300 (Layer B ≥ 97% sides compactness of max. 20 cm each) or grinded single grain material Grain size 8/16 mm 20 PURAIN Manual Vers. 1.3_en ...
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Page 22: Overlay And Load Capacity Of The System
non‐cohesive, compactable material Filter overlay from soil class 3 and 4 according to ≥ 97% C (≥ 35 cm) DIN18300, (layer compaction of 20 min. E = 45MN/m² V2 cm each) Top structure/traffic D According to requirement According to requirement surface Tab. 4: Construction layers and filling material for the backfilling of filters Note: The compacting requirement of ZTV E‐StB 09 (Supplementary Technical Terms and Conditions of Contract and Guidelines for Earthworks in Road Construction) are to be observed for vehicular traffic areas. 6.3.1.3 Overlay and load capacity of the system The load carrying capacity of the installed filter and the carrying capacity of the contact area are dependant on the overlay height ... -
Page 23: Instructions For Manhole And Manhole Lid
Max. Axle Overlay P Installation situation / Traffic load load for PR‐HD‐200 to PR HD‐400 Walkable gravel area ‐‐ 0.50 1 – 1.90 m Truck 12 t / Equivalent distributed load = 6.7 kN/m² 8.0 t 0.50 1 ‐ 1.70 m Paved / gravel area Truck 30 t (Equivalent distributed load = 16.7 kN/m²) 13.0 t 0.50 – 1.70 m Paved area Truck 60 t (Equivalent distributed load = 33.3 kN/m²) 30.0 t 0.60 – 1.50 m Paved area 1 The formation of tire tracks must be taken into account with gravel roadways. The minimum total overlay must never be allowed to fall below the minimum required measurement! (Traffic loads as per DIN 1072) Tab. 6: Overview of the approved total overlap P for the PR‐HD model series 6.3.1.4 Instructions for manhole and manhole lid The manhole lid must be fitted so that any load on the lid is transferred directly to the surrounding ground and does not bear weight on the manhole itself. This means that the load transfer from both the manhole lid and the manhole itself must be separated (floating). Note: The manhole contact area must be at least 980 x 800 mm (0,25m²). Manhole and manhole lid must not be locked together!! ... -
Page 24: Installation Instructions
6.3.2 Installation instructions 6.3.2.1 Compacting machine Usually, the direct driving of the filters with construction vehicles or with consolidating devices is not allowed. Vibrating plate: Operating weight: max. 255 kg Plate width: 600 mm x 800 mm Lateral compacting Specific support pressure: 0.86 da N/cm² /vibration force: 35 kN Oscillating frequency: 80Hz No compacting machine allowed 0 to 20 cm height above filter shoulder Vibrating plate, as described above from 20 cm height above filter shoulder for instance, vibrating plate: Operating weight: ca. 400 kg from 40 cm Plate width: ... -
Page 25: Installation Steps
6.3.2.2 Installation steps 1.) Create compacted, level ground as a base for the filter. Fig. 15: Creating ground level 2.) Backfill the space and compact in layers of 20 cm at a time, until the required level is reached at the filter shoulder. !!Attention!!: Make sure the filter lid is fitted before lateral backfilling is to be done as this supports the lateral load. Fig. 16: Layer‐wise arrangement of compacting up to filter shoulder ... -
Page 26: Maintenance And Cleaning Intervals
7. Maintenance and cleaning intervals 7.1 Application rainwater harvesting system The filter should be checked every 3 months and cleaned every 6 months for contaminants that may become caught in the slotted wire strainer. Dirt and leaves found in the discharge area need not be removed because they will be flushed out through the overflow with the next heavy rainfall. If water has accumulated in the discharge area then the sieve may be blocked, but this is effectively ... -
Page 27: Application Grey Water Recycling Systems
7.2 Application grey water recycling systems For grey water applications it is necessary to use the automatic filter cleaning with backwash nozzle and solenoid valve. The cleaning intervals and cleaning duration are set in the respective grey water control. A check must be carried out every 3 months and cleaning every 6 months. The screen is cleaned manually or with the high‐pressure cleaner. Dirt (especially hair) lying in the collection area of the filter must be removed beforehand! 8. Warranty/Contact The warranty provisions are included in our sales conditions, and can be viewed at: https://www.intewa.com/de/agb/ For any queries, orders for spare parts or service enquiries, please get in touch with your local dealer or visit the service domain at the INTEWA website of your country. www.intewa.com Always keep your purchase invoice handy. 26 PURAIN Manual Vers. 1.3_en ...
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