R401DBX032

R401DBX032 GIACOMINI | Alldatasheet

Document overview

• Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
• PDF pages: 8

Technical content

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com DB valves Datasheet 0951EN  12/2021 Radiator valves with thermostatic option with dynamic flow balancing DB radiator valves with thermostatic option are equipped with an integrated cartridge to control and limit the flow rate through preset values. The preset flow rate is never exceeded, even in case of load variations within the system when other valves close or during start up. This operation is completely independent from the differential pressure when the value is included between a minimum and maximum range. The required flow rate is set directly on the cartridge with a regulation key, so complicated calculations for pressure losses and balancing are no longer required and commissioning times are reduced. These characteristics are crucial in new systems and even more so in renovation works where planners and installers are often unaware of important parameters. The maximum differential pressure is an additional important characteristic as DB valves are designed to work up to 150 kPa, making them suitable for a wide range of applications. Thanks to the 150kPa maximum differential pressure, the valve can be used to replace existing ones without installing a differential pressure controller upstream of the distribution line. R401DB IRON PIPE CONNECTION R402DB IRON PIPE CONNECTION R415DB IRON PIPE CONNECTION R411DB ADAPTOR CONNECTION R412DB ADAPTOR CONNECTION R415DB ADAPTOR CONNECTION

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com Accessories

• R73PY010: regulation key for presetting
• R400DBX001: kit for bonnet replacement
• R460, R468, R470: thermostatic heads with Clip Clap quick-connection SERIES PRODUCT CODE CONNECTIONS TYPE R401DB R401DBX032 3/8” x 3/8” Iron pipe connection AngleR401DBX033 1/2” x 1/2” R401DBX004 3/4” x 3/4” * R402DB R402DBX032 3/8” x 3/8” StraightR402DBX033 1/2” x 1/2” R402DBX004 3/4” x 3/4” * R415DB R415DBX033 1/2” x 1/2” Reverse angle R411DB R411DBX033 1/2” x 16 Adaptor connection for copper, plastic or multilayer pipe Angle R412DB R412DBX033 1/2” x 16 Straight R415DB R415DBX042 1/2” x 16 Reverse angle  Versions and product codes * Tail piece without self-sealing Spare parts
• P12ADBX002: bonnet with dynamic balancing  Components

1 Worksite protection cover

2 Indicator ring

3 Command stem

4 Stopper

5 Regulation sleeves

6 Balancing membrane with controlled deformation

7 Valve body

8 Tail piece and nut

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com  Technical data Performance

• Fluids: water and glycol-based solutions (max. 30 %)
• Temperature range: 5÷95 °C
• Max. working pressure: 16 bar with worksite protection cover 10 bar in combination with thermostatic heads
• Max. differential pressure with thermostatic heads: 1,5 bar (150 kPa)  WARNINGS.
• DB valves are suitable for closed-loop systems for use with non-aggressive fluids (water, glycol-based water complying with VDI 2035/ONORM 5195).
• Mineral oils or mineral oil-based lubricants contained in the heat transfer fluid may cause swelling and damaging of the EPDM gaskets.
• When using ethylene glycol-based anti-freeze and anti-rust products not containing nitrites, refer to the manufacturer’s instructions, especially those concerning concentrations and specific additives.
• In case of muddy water or water containing impurities, we recommend carrying out a chemical flushing before installing the valves with thermostatic option. Materials
• Body and main parts: chrome-plated brass UNI EN 12165 CW617N
• Seals: EPDM
• Worksite protection cover: PP-H
• Internal bonnet: - monoblock stem: stainless steel - bonnet body: brass UNI EN 12164 CW617N - sleeve: plastic - membrane: EPDM - O-Ring: EPDM Adjustment accuracy ∆p max∆p min % error (Q) -40

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com The desired flow rate is preset directly on the radiator valve with the special regulation key R73PY010 (see paragraph “Flow rate presetting”). If, for example, the flow rate tends to increase when other thermostatic valves close, the cartridge membrane will reduce the opening surface so that the flow rate is automatically limited to a preset value. On the contrary, if the flow rate tends to decrease below the preset value, the cartridge membrane will extend the opening surface and the flow rate will return to the preset value.  Operation ∆p [kPa] max min Q [l/h] Presetted flow rate The diagram shows the typical pressure drop of a DB radiator valve: the curve slopes down when reducing the preset flow rate and slopes up when increasing it. DB radiator valves are used in rising twin-pipe heating systems. The valves control the flow rate through the radiators independently from the variations of the differential pressure, as long as this value is included between a minimum and maximum range. The minimum differential pressure must be controlled with the most disadvantaged valve while the most advantaged one controls the maximum value. Rising pipe system with traditional TG valves and static flow rate balancing R422TG R15TG G 0 % G 0 % R402DB R15TG R15TG R402DB R15TG R15TG R402DB R15TG R402DB R402DB R402DB R15TG G 100 % R422TG R15TG G 100 % R422TG R15TG R422TG CLOSED CLOSED R15TG R422TG R15TG G 100 % G 110 % R422TG R15TG G 120 % G 100 % G 100 % G 100 % G 100 % G 100 % DESIGN LOAD PARTIAL LOAD DESIGN LOAD PARTIAL LOAD R422TG R15TG G 0 % G 0 % R402DB R15TG R15TG R402DB R15TG R15TG R402DB R15TG R402DB R402DB R402DB R15TG G 100 % R422TG R15TG G 100 % R422TG R15TG R422TG CLOSED CLOSED R15TG R422TG R15TG G 100 % G 110 % R422TG R15TG G 120 % G 100 % G 100 % G 100 % G 100 % G 100 % DESIGN LOAD PARTIAL LOAD DESIGN LOAD PARTIAL LOAD Rising pipe system with DB valves and dynamic flow rate balancing As shown in the application diagrams below, DB valves keep the flow rate constantly balanced in every radiator of the system. The TG and DB series valves can be equipped with thermostatic heads that work independently of the flow rate regulated by the valve with thermostatic option.

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com  Flow rate presetting The flow rates of the valve may be preset with the R73PY010 regulation key (to be ordered separately) within a setting range from 1 to 6, indicated on the cartridge of the bonnet. To preset the flow rates proceed as follow: 1) identify the cartridge position corresponding to the desired flow rate using the flow rate presetting diagrams or tables; 2) remove the worksite protection cover or the thermostatic head from the bonnet and fit the regulation key onto the cartridge; 3) turn the regulation key till the desired position appears in the key slot; 4) remove the regulation key and refit the worksite protection cover or the thermostatic head. Presetting position 1 2 3 4 (factory setting) 5 6 Flow rate without thermostatic head [l/h] 25 70 110 150 200 250 Flow rate with thermostatic head [l/h] 15 50 100 125 150 200 Δp min [kPa] 25 25 30 30 30 30 Δp max [kPa] 150 Q [l/h] 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 ∆p [kPa] 100 150 200 250 Pos.1 25 l/h Pos.2 70 l/h Pos.3 110 l/h Pos.4 150 l/h Pos.5 200 l/h Pos.6 250 l/h Q [l/h] 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 ∆p [kPa] 100 150 200 250 Pos.1 15 l/h Pos.2 50 l/h Pos.3 100 l/h Pos.4 125 l/h Pos.5 150 l/h Pos.6 200 l/h SENZA TESTA TERMOSTATICA CON TESTA TERMOSTATICA Without thermostatic head1 Q [l/h] 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 ∆p [kPa] 100 150 200 250 Pos.1 25 l/h Pos.2 70 l/h Pos.3 110 l/h Pos.4 150 l/h Pos.5 200 l/h Pos.6 250 l/h Q [l/h] 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 ∆p [kPa] 100 150 200 250 Pos.1 15 l/h Pos.2 50 l/h Pos.3 100 l/h Pos.4 125 l/h Pos.5 150 l/h Pos.6 200 l/h SENZA TESTA TERMOSTATICA CON TESTA TERMOSTATICA With thermostatic head and 2K proportional band1 R73PY010 R73PY010 R73PY010 R73PY010 434 R73PY010 R73PY010

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com  Thermostatic heads installation

• Install the thermostatic heads horizontally.
• For correct reading of the temperature, do not install the thermostatic heads in niches, shutter boxes, behind curtains and do not expose to direct sunlight. In such cases, we recommend using versions with remote sensors (R462/R463).
• R460, R468 and R470 thermostatic heads with Clip Clap quick connection can be installed directly on the valve body after removing the worksite protection cover.
• To remove the worksite protection cover, turn the upper cap in anti-clockwise direction and disconnect the lower base prying with a screwdriver. To install thermostatic heads with Clip Clap connection on the valve body, follow the steps below: 1) Fully open the thermostatic head moving the handle on  position . Pull the Clip Clap ring towards the handle. 2) Snap the thermostatic head on the valve, making sure the valve pins, the thermostatic head slots and the Clip Clap ring notch are aligned. 3) Fully close the thermostatic head by turning the handle all the way through (set the handle on “0”). 4) Now the thermostatic head is connected to the valve and can be set to the desired position by turning the handle.   RIMOZIONE TESTA 1 2 3 4 1 2 3   RIMOZIONE TESTA 1 2 3 4 1 2 3   RIMOZIONE TESTA 1 2 3 4 1 2 3   RIMOZIONE TESTA 1 2 3 4 1 2 3 To remove the thermostatic heads from the valve body: fully open the thermostatic head by turning the handle on  position . Pull the Clip Clap ring towards the handle. Disconnect the head from the valve.  With thermostatic head installed on the valve body, to avoid excessive loads on the seal gasket of the thermostatic bonnet (with the resulting risk of jamming and locking) during the summer, it is recommended to place the handwheel of the thermostatic head in the fully open position, marked by the symbol .  Installation and removal of thermostatic heads may vary based on the head code (R460, R468, R470). The pictures above show the installation steps of thermostatic head R468. For additional installation details for other types of thermostatic heads, refer to the specific technical sheets.  In case of malfunction of the bonnet is possible to replace it, using the appropriate kit R400DB.  Bonnet replacement with R400DB kit  The bonnet of the DB SERIES dynamic balancing valves is not compatible with the other Giacomini valves with thermostatic option.  The replacement of the radiator valve bonnet can be done with the system running, using the R400DB replacement kit.  Refer to the operating instructions of the R400DB replacement kit for the replacement procedure of the bonnet. R400DB

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com  Dimensions PRODUCT CODE G x B H [mm] I [mm] J [mm] K [mm] L [mm] M [mm] W [mm] R411DBX033 1/2” x 16 80 53 21 - 71 23 30 R411DB I B L W H G J M PRODUCT CODE G x B H [mm] I [mm] J [mm] K [mm] L [mm] M [mm] W [mm] R412DBX033 1/2” x 16 87 52 23 - 77 23 30 R412DB M W H B G J I L PRODUCT CODE G x B H [mm] I [mm] J [mm] K [mm] L [mm] M [mm] W [mm] R415DBX033 1/2” x 1/2” 53 53 36 25 129 23 30 R415DBX042 1/2” x 16 53 45 36 - 122 23 30 R415DB W G J M H B IL K PRODUCT CODE G x B H [mm] I [mm] J [mm] K [mm] L [mm] M [mm] W [mm] R401DBX032 3/8” x 3/8” 79 51 20 22 68 23 27 R401DBX033 1/2” x 1/2” 83 53 23 26 71 23 30 R401DBX004 3/4” x 3/4” * 86 60 25 32 78 23 38 R401DB I B L W K H G J M * Tail piece without self-sealing PRODUCT CODE G x B H [mm] I [mm] J [mm] K [mm] L [mm] M [mm] W [mm] R402DBX032 3/8” x 3/8” 83 54 16 22 76 23 27 R402DBX033 1/2” x 1/2” 84 53 20 26 82 23 30 R402DBX004 3/4” x 3/4” * 87 56 21 32 81 23 38 R402DB M WK H B G J I L * Tail piece without self-sealing

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com R401DB Angle chrome-plated valve with thermostatic option with flow rate dynamic balancing and iron pipe connection. Body made with chrome-plated brass UNI EN 12165 CW617N. PP-H worksite protection cover. Stainless steel monoblock stem. Seal on control stem with EPDM O-Ring. Temperature range 5÷95 °C. Max. working pressure 16 bar (with thermostatic head 10 bar). Δp min 25÷30 kPa; Δp max 150 kPa. Flow rate presetting with 6 positions corresponding to 25, 70, 110, 150, 200, 250 l/h without thermostatic head installed. Flow rate presetting with 6 positions corresponding to 15, 50, 100, 125, 150, 200 l/h with thermostatic head installed and 2K proportional band. R402DB Straight chrome-plated valve with thermostatic option with flow rate dynamic balancing and iron pipe connection. Body made with chrome-plated brass UNI EN 12165 CW617N. PP-H worksite protection cover. Stainless steel monoblock stem. Seal on control stem with EPDM O-Ring. Temperature range 5÷95 °C. Max. working pressure 16 bar (with thermostatic head 10 bar). Δp min 25÷30 kPa; Δp max 150 kPa. Flow rate presetting with 6 positions corresponding to 25, 70, 110, 150, 200, 250 l/h without thermostatic head installed. Flow rate presetting with 6 positions corresponding to 15, 50, 100, 125, 150, 200 l/h with thermostatic head installed and 2K proportional band. R415DB Reverse angle chrome-plated with thermostatic option with flow rate dynamic balancing; iron pipe connection or adaptor connection for copper, plastic or multilayer pipe. Body made with chrome-plated brass UNI EN 12165 CW617N. PP-H worksite protection cover. Stainless steel monoblock stem. Seal on control stem with EPDM O-Ring. Temperature range 5÷95 °C. Max. working pressure 16 bar (with thermostatic head 10 bar). Δp min 25÷30 kPa; Δp max 150 kPa. Flow rate presetting with 6 positions corresponding to 25, 70, 110, 150, 200, 250 l/h without thermostatic head installed. Flow rate presetting with 6 positions corresponding to 15, 50, 100, 125, 150, 200 l/h with thermostatic head installed and 2K proportional band. R411DB Angle chrome-plated valve with thermostatic option with flow rate dynamic balancing and adaptor connection for copper, plastic or multilayer pipe. Body made with chrome-plated brass UNI EN 12165 CW617N. PP-H worksite protection cover. Stainless steel monoblock stem. Seal on control stem with EPDM O-Ring. Temperature range 5÷95 °C. Max. working pressure 16 bar (with thermostatic head 10 bar). Δp min 25÷30 kPa; Δp max 150 kPa. Flow rate presetting with 6 positions corresponding to 25, 70, 110, 150, 200, 250 l/h without thermostatic head installed. Flow rate presetting with 6 positions corresponding to 15, 50, 100, 125, 150, 200 l/h with thermostatic head installed and 2K proportional band. R412DB Straight chrome-plated valve with thermostatic option with flow rate dynamic balancing and adaptor connection for copper, plastic or multilayer pipe. Body made with chrome-plated brass UNI EN 12165 CW617N. PP-H worksite protection cover. Stainless steel monoblock stem. Seal on control stem with EPDM O-Ring. Temperature range 5÷95 °C. Max. working pressure 16 bar (with thermostatic head 10 bar). Δp min 25÷30 kPa; Δp max 150 kPa. Flow rate presetting with 6 positions corresponding to 25, 70, 110, 150, 200, 250 l/h without thermostatic head installed. Flow rate presetting with 6 positions corresponding to 15, 50, 100, 125, 150, 200 l/h with thermostatic head installed and 2K proportional band.  Product specifications  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.