R74A-0329 GIACOMINI | Alldatasheet
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Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com R74A Datasheet 0329EN 01/2025 Y-filters, standard and magnetizable versions Versions and product codes VERSION PRODUCT CODE CONNECTIONS Kv NOT magnetizable R74AY002 G 3/8”F 3,0 R74AY003 G 1/2”F 4,5 R74AY004 G 3/4”F 7,0 R74AY005 G 1”F 7,8 R74AY006 G 1-1/4”F 15,0 R74AY007 G 1-1/2”F 21,0 R74AY008 G 2”F 34,0 R74AY009 G 2-1/2”F 64,0 R74AY010 G 3”F 81,0 R74AY011 G 4”F 102,0 Magnetizable R74AY103 G 1/2”F 3,5 R74AY104 G 3/4”F 5,9 R74AY105 G 1”F 10,0 R74AY106 G 1-1/4”F 18,2 R74AY107 G 1-1/2”F 20,9 R74AY108 G 2”F 32,0 Inspectable Y-filters, suitable for the distribution of fluids in hydronic systems. The filters feature a metallic mesh, which was designed to prevent solid impurities from entering into the piping and, by depositing residues, reducing the width of the passage, thus increasing losses of pressure and oxidation. MAGNETIZABLE NOT MAGNETIZABLE Technical data Performance
- Fluids of use: water with glycol (max. 50%) for HVAC systems
- Temperature range: 5÷110 °C
- Max. working pressure: - for NOT magnetizable filters: 16 bar - for magnetizable filters: 30 bar
- Filtering capacity: 500 μm Materials - NOT magnetizable filters
- Body: UNI EN 12165 - CW617N brass for 3/8”÷1 1/ 4”; EN 1982 - CB753S brass for 1 1/2”÷2 1/2”; UNI EN 1982 - CB491K bronze for 3”, 4”.
- Cap: UNI EN 12165 - CW617N brass
- O-Ring: EPDM
- Metallic mesh: AISI 304 stainless steel Materials - magnetizable filters
- Body and cap: UNI EN 12165 - CW617N brass
- O-Ring: EPDM
- Metallic mesh: AISI 304 stainless steel Optionals - for magnetizable filters
- P74MY011: neodymium magnet with steel coating for R74AY103, R74AY104 filters (lenght 29 mm)
- P74MY012: neodymium magnet with steel coating for R74AY105, R74AY106 filters (lenght 44 mm)
- P74MY013: neodymium magnet with steel coating for R74AY107, R74AY108 filters (lenght 55 mm)
Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com Components
1 Filter body
2 Cap
3 Metallic mesh
Installation The R74A filter must always be fitted upstream of all of system components which could become damaged or less effective due to the presence of impurities. It is recommended to install shut-off valves upstream and downstream of the filter, to facilitate periodic maintenance. It is usually installed at the entrance to the water supply system before the check valve, preventers and pressure reducers. It can also be used in closed heating circuits at the entrance to the heat generator to protect the exchanger from any impurities originating from the system. For increased efficiency with regard to filtering and deposit of solid impurities, it is advisable to install the filter body on the horizontal piping with the filter cap facing downwards. For correct installation, please check the flow direction indicated by the arrow stamped on the filter body. WARNING. It is recommended that, before installing the filter , the operating conditions of the system are checked, including pressure and temperature, in order to ensure that these are included in the operating range. It is important that the filter is accessible so that any necessary maintenance can be carried out. Operation A The flow enters the filter and is slowed down, allowing for the separation of the solid impurities present in the fluid. The solid impurities are separated when they collide with the metal mesh (A), and then fall to the bottom. The filter body is designed to make the most of the entire filtering surface, increasing the length of time for which it is functional before the mesh becomes completely dirty. When this occurs, the filter can be extracted and cleaned under running water in order to clear the surface through which the water waill pass. NOTE. R7 4A magnetizable filters can be equipped with an internal magnet that helps the metallic mesh to hold the iron impurities.
Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com Installation of P74M-1 magnet on R74A magnetizable filters 1) Unscrew the filter cap and metallic mesh mounted on it. 2) Screw the P74M-1 magnet to the cap by means of the magnet male threaded screw and the female threaded connection situated inside the cap. 3) Screw the cap, equipped with metal mesh and magnet, on the filter body. 4) Apply the adhesive with the identification of the presence of magnet (provided with P74M-1 magnet) on the cap . Conversion of R74A filters to R74M magnetic filters Filters from the R74A series can be transformed into magnetic filters, through the installation of the P74M-1 manget. R74A CODE P74M-1 CONVERSION KIT R74M CODE R74AY103 P74MY011 R74MY013 R74AY104 R74MY014 R74AY105 P74MY012 R74MY015 R74AY106 R74MY016 R74AY107 P74MY013 R74MY017 R74AY108 R74MY018 Maintenance Filter maintenance must be carried out as often as necessary, according to the level of impurities in the fluid being used. Anyway, it is recommended that the filter is cleaned at least once a year to avoid excessive reductions in flow rate as well as the formation of irreversible build-up which necessitates the replacement of the filter mesh. To carry out the cleaning of the metallic mesh, proceed as described below: 1) Close the shut-off valves upstream and downstrem the filter. 2) Unscrew the cap and remove the metallic mesh mounted on it. 3) Clean the metallic mesh under running water, using a plastic bristle brush. For easier cleaning, is possible to temporarily remove the metal mesh from the cap. Check that the surface of the filter is completely clean (where irreversible obstructions are present, or where the filter is broken, it will need to be replaced). 4) Replace the metal mesh on the cap and screw it on the filter body. 5) Open the shut-off valves upstream and downstrem the filter. WARNING. After the system filling phase is complete, the filter should be cleaned for the first time after a week of operation, to remove any obstruction from installation residue (metal shavings, sealing elements etc).
Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com Product specifications R74A not magnetizable Inspectable Y filter with stainless steel basket. Female threaded connection ISO 228. Brass body UNI EN 12165 CW617N for 3/8”÷1 1/4”; brass EN 1982 CB753S for 1 1/2”÷2 1/2”; bronze UNI EN 1982 CB491K for 3”, 4”. Cap in brass UNI EN 12165 CW617N. O-Ring in EPDM. Fluids of R74A magnetizable Inspectable Y filter with stainless steel basket and possibility to install a magnetic kit. Female threaded connection ISO 228. Body and cap made of UNI EN 12165 CW617N brass. O-Ring in EPDM. Fluids of use: water with glycol (max. 50%) for HVAC systems. Temperature range 5÷110 °C. Max. working pressure 30 bar. Filtering capacity: 500 μm. P74M-1 N35H neodymium magnet with stainless steel coating, with male threaded fixing screw. Max. working temperature: 110 °C. For installation in R701F valves with filter, in R74A magnetizable filters or spare part for R74M magnetic filters. NOTE. EUROPEAN DIRECTIVE 2014/68/UE. The product illustrated in this technical specification satisfies the requirements of Directive 2014/68/UE and is exempt from CE marking, according to Article 4.3. Package Disposal. Carton boxes: paper recycling. Plastic bags and bubble wrap: plastic recycling. Product Disposal. Do not dispose of product as municipal waste at the end of its life cycle. Dispose of product at a special recycling platform managed by local authorities or at retailers providing this type of service. Safety Warning. Installation, commissioning and periodical maintenance of the product must be carried out by qualified operators in compliance with national regulations and/or local standards. A qualified installer must take all required measures, including use of Individual Protection Devices, for his and others’ safety. An improper installation may damage people, animals or objects towards which Giacomini S.p.A. may not be held liable. Additional information. For more information, go to giacomini.com or contact our technical at any time, without notice and for technical or commercial reasons, the items included herewith. The information included in this technical sheet do not exempt the user from strictly complying with the rules and good practice standards in force. Dimensions A C A B P D PRODUCT CODE A [mm] B [mm] C [mm] P [mm] D [μm] N R74AY103 G 1/2”F 48 35 1 500 70 R74AY104 G 3/4”F 57 42 R74AY105 G 1”F 68 52 R74AY106 G 1-1/4”F 82 65 R74AY107 G 1-1/2”F 90 72 R74AY108 G 2”F 108 88 P: passage of holes D: diameter of hole inscribed N: number of holes per cm² PRODUCT CODE A [mm] B [mm] C [mm] P [mm] D [μm] N R74AY002 G 3/8”F 48 33 1 500 70 R74AY003 G 1/2”F 52 34 R74AY004 G 3/4”F 63 42 R74AY005 G 1”F 75 50 R74AY006 G 1-1/4”F 91 63 R74AY007 G 1-1/2”F 102 70 R74AY008 G 2”F 118 87 R74AY009 G 2-1/2”F 150 108 R74AY010 G 3”F 167 148 R74AY011 G 4”F 226 185 P: passage of holes D: diameter of hole inscribed N: number of holes per cm² A C A B P D Not magnetizable Magnetizable