R276-R277-R278-R279-0360 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 R276, R277, R278, R279 Datasheet 0360EN 07/2021 2- or 3-way ball zone valves The zone valves are devices for intercepting the heating fluid which, driven by an actuator controlled by a thermostat, allow for the subdivision of climate control systems in sectors which are similar from the point of view of room temperature control. Zone valves may be of the 3-way type, with an adjustable by-pass, which must produce a loss of pressure comparable to that of the system in order to avoid hydraulic failure in the distribution when the flow is deviated on the return to the boiler room - or the 2-way type, which generally requires the installation of a pressure differential valve on the primary circuit, for the protection of the boiler circulator. The R276, R277, R278 and R279 zone valves integrated a ball which is specially shaped for the purpose, along with K270 or K272 actuators for the control. R276 R277 R278 R279 SERIES PRODUCT CODE CONNECTIONS TYPE R276 R276Y004 G 3/4”F 2-way zone ball valve R276Y005 G 1”F R277 R277Y004 G 3/4”M R277Y025 G 1”M R278 R278Y004 G 3/4”M 3-way zone ball valve R278Y005 G 1”M R279 R279Y004 G 3/4”F R279Y005 G 1”F Versions and product codes Accessories
- K270: 24 V or 230 V actuator, with stroke-end microswitch
- K272: 24 V or 230 V actuator, with stroke-end microswitch and handwheel for manual operation
- R193K: eccentric pipe kit for the installation of R278 3-way zone valve in combination with distribution manifold
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
- Fluid: water for HVAC systems
- Max. working temperatura: 110 °C
- Max. working pressure: - R276, R277 valves: 20 bar - R278, R279 valves: 10 bar Direct way loss of pressure 100 1000 10000 100 1000∆p [mm H20] Q [l/h] R276 R277 3/4” R278 R279 3/4” R278 R279 1” R276 R277 PRODUCT CODE CONNECTIONS Kv R276Y004 G 3/4”F 18,5 R276Y005 G 1”F 36,3 R277Y004 G 3/4”M 18,5 R277Y025 G 1”M 36,3 R278Y004 G 3/4”M 9,3 R278Y005 G 1”M 16 R279Y004 G 3/4”F 9,3 R279Y005 G 1”F 16 By-pass loss of pressure (only for R278, R279 3-way zone valves) LOCKSHIELD OPENING TURNS Kv 1 0,35 2 0,70 3 1,23 4 1,95 5 2,60 6 3,00 7 3,07 F.O. 3,20 ∆p [mm H20] 1000 100 Q [l/h] 100 100010 5 6 F. O. 71 2 3 4 NOTE. The lockshield on the by-pass conduit must be adjusted using an 8 mm allen key, to reproduce a loss of pressure comparable to that of the system and to avoid hydraulic failure in the distribution when the flow is deviated on the return to the boiler room. Materials
- Body and main components: CW617N brass
- Gaskets: PTFE
Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com Operation Operation of R276, R277 zone valves with K270/K272 actuators VALVE CLOSED VALVE OPEN CLOSED OPEN Operation of R278, R279 zone valves with K270/K272 actuators VALVE CLOSED VALVE OPEN CLOSED OPEN Flow diagram for R278, R279 3-way zone valves R278 DIRECT WAY BY-PASS R279 DIRECT WAY BY-PASS
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 WARNING. The connection to the system must be carried out by qualified personnel, respecting the flow direction indicated by the arrows imprinted on the valve bodies. Installation of R193K connection kit with R278 3-way zone valve In the R278 three-way valves, the delivery and return bodies can be assembled directly (if mounted on coplanar manifold), or through a by-pass conduit, using the Base 18 and the Ø 18 copper pipe connections. SERIES PRODUCT CODE USE INSTALLATION R193K R193Y011 Use in combination with: R278 zone valve + R553D/R553F manifold + R588 metal brackets + R500 cabinet Ø 18 Base 18 Ø 18 R193Y021 Use in combination with: R278 zone valve + R553D/R553F manifold + R588Z metal brackets + R500-2 cabinet WARNING. The valve may be installed in any position but the actuator should not be positioned upside down or with the power cable entering from the top (to prevent problems deriving from condensation). The valve must be installed in dry, protected and easily accessible places for any subsequent maintenance interventions. Do not cover with insulating materials.
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 CONNECTION G C [mm] D [mm] L [mm] B [mm] A [mm] H [mm] P [mm] Q [mm] R [mm] S [mm] T [mm] U [mm] R276Y004 G 3/4”F 31 32 63 18 33 51 92 110 118 108 126 157 R276Y005 G 1”F 38 38 76 23 37 60 96 119 118 112 135 157 R276 G A H B C L D R276 + K270Y101 / K270Y102 G P Q B C L R D R276 + K272Y101 / K272Y102 G C L D S T B U PRODUCT CODE CONNECTION G C [mm] D [mm] L [mm] B [mm] A [mm] H [mm] P [mm] Q [mm] R [mm] S [mm] T [mm] U [mm] R277Y004 G 3/4”M 56 71 127 21 33 54 92 113 118 108 129 157 R277Y025 G 1”M 59 73 132 26 37 63 96 122 118 112 138 157 R277 G AB H C L D R277 + K270Y101 / K270Y102 G C L D P Q B R R277 + K272Y101 / K272Y102 G C L D S T B U
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 CODE CONNECTION G C [mm] D [mm] L [mm] B [mm] A [mm] I [mm] H [mm] P [mm] Q [mm] R [mm] S [mm] T [mm] U [mm] R278Y004 G 3/4”M 56 71 127 32 33 46 111 92 166 118 108 186 157 R278Y005 G 1”M 59 73 132 34 37 54 125 96 180 118 112 200 157 R278 GG AB I H C L D R278 + K270Y101 / K270Y102 GG B I C L D P Q R R278 + K272Y101 / K272Y102 GG B I C L D S T U R279 GG A H BO M N C L D C L D PRODUCT CODE CONNECTION G C [mm] D [mm] L [mm] B [mm] A [mm] H [mm] N [mm] O [mm] M [mm] P [mm] Q [mm] R [mm] S [mm] T [mm] U [mm] R279Y004 G 3/4”F 31 32 63 33 33 66 30 31 61 92 125 118 108 141 157 R279Y005 G 1”F 38 38 76 42 37 79 35 38 73 96 138 118 112 154 157 R279 + K270Y101 / K270Y102 GG B O M N C L D C L D P Q R R279 + K272Y101 / K272Y102 GG O M N C L D C L D S T B U
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 R276 2-way zone ball valve. 3/ 4” or 1” female-female connections. Body and main components made of CW617N brass. PTFE R277 2-way zone ball valve. 3/ 4” or 1” male-male tail piece connections. Body and main components made of CW617N brass. PTFE R278 3-way zone ball valve with adjustable by-pass. 3/ 4” or 1” male-male tail piece connections. Body and main components installing K270 or K272 actuators. R279 3-way zone ball valve with adjustable by-pass. 3/ 4” or 1” female-female connections. Body and main components made of K270 or K272 actuators. 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.